2005_Digital_ Processor_ Manual

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Contents
Mission Statement
2
How a Balanced Signal System Works
3
Sonic Purity
4
SymbiLink™ Balanced System
5
Zapco Digital
6
The Zapco Digital Programming Network
8
Addressing Components on the DPN
9
DSP6-SL
10
Zapco Digital – Functions and Control
12
The PC Program
13
The PC Programming Screen
20
The DRC-SL In-Dash Programmer
25
Adjustment Screen
27
Menu Map
28
DRC-SL Quick Menu
30
Technical Assistance
31
1
Mission Statement
ZAPCO IS DEDICATED TO THE PURSUIT OF AUDIO FIDELITY.
Our passion, our “Driving Force” is to design and manufacture car audio
products of unsurpassed quality, to provide unparalleled support and service
for these products and to conduct business in a manner that will enhance
the quality of life for all involved. There is absolutely no substitute for
experience; that is a simple fact of life. Another simple fact is that for over 30
years, ZAPCO has been the leader in defining quality standards for the car
audio industry. These years of experience have led to a thorough
understanding of the challenges that are unique to the world of car audio.
ZAPCO’s relentless quest for sonic purity consistently yields imaginative
designs that utilize the most innovative technologies. The resulting products
set the criteria by which all others in the industry are judged. Feel the
passion, hear the quality, know the performance and reliability by making
ZAPCO the “Driving Force” in your car audio system.
2
How a Balanced Signal System Works
3
Sonic Purity
Our dedication to sonic purity requires that the highest quality
internal components are used.
•
Resistors
All resistors (other than power resistors) are 1% precision low noise
metal film. This is a key reason why ZAPCO products have the industries’
best low noise specifications, and why you won’t see as much fluctuation in
our test certificates as you will with other brands. Precision resistors also
reduce distortion and improve channel matching.
•
Capacitors
Capacitors are similar to batteries. Like a battery, they store energy
and have electrolyte (internal fluid). Also like a battery, a capacitor can have
a very limited life. “Computer grade” capacitors for example, are reliable
only in cool environments with very little current applied to them. Only the
best high current and high temperature capacitors should be used in an
auto-sound application. Although these capacitors typically cost five times
as much as those commonly used in other brands, ZAPCO insists that no
audio degradation will occur over time.
•
Transistors
Two types of transistors are used in ZAPCO products, bipolar and
MOSFET. MOSFET transistors are rugged, high current output devices that
are best suited as switches. They are the choice for switching power
supplies. They are however, very non-linear and are not suitable for use as
audio outputs. They cannot be matched and their inherent distortion
requires too much feedback to achieve reasonable distortion levels. Bipolar
output transistors are used exclusively in the audio stage of all Reference
Series amplifiers. The audio performance of a bipolar transistor heavily
outweighs any minor advantages a MOSFET might offer regarding
durability. We solve the durability concerns by simply using more output
devices than the amplifier requires. This gives us a bulletproof amp with the
sound quality we demand of a ZAPCO product.
•
Transformers
Most of the transformers used in our products are hand-wound to
ensure maximum quality. This provides a guarantee that current capability,
efficiency, and radiated noise are all kept within our demanding parameters.
Another critical aspect of the transformer is mounting; all transformers are
securely mounted in their respective chassis. Transformers are massive,
and if not securely mounted can cause failure among internal components
due to vibration.
4
•
Power Supplies
Regulated or Unregulated? For years amplifier designers have
debated which type of power supply is best. What’s the truth about power
supplies? They each have advantages and disadvantages and there is no,
one, best type. Limiting yourself to one type of power supply limits your
amplifier design flexibility. ZAPCO uses both types of power supplies
depending on the intended use of each amplifier, as well as expected
current demands and operating environment.
SymbiLink™ Balanced System
The most natural configuration for an audio system in the
automobile places the signal source in the dash with the amplifiers located
some distance away, usually under the seat or in the trunk of the vehicle.
The reality of this arrangement dictates the necessity to make long runs of
low level signal cable usually from the front to the back of the car. The
electrical environment in an automobile is one that is inherently noisy and
filled with conditions that threaten to degrade signal fidelity at every turn.
Capacitive loading due to the long cable lengths, the potential for ground
loops, alternator charging currents or currents generated by the amplifiers
themselves are all factors that induce noise and distortion into the signal
cables. By no means is this an ideal situation. Thankfully, ZAPCO has found
the solution.
SymbiLink™ components convert a standard unbalanced audio
signal into the fully balanced domain usually reserved for expensive
professional audio equipment found in recording studios or at your local
concert venue. After this conversion is made, the audio cabling becomes
virtually immune to electrical interference in the surrounding environment
and is much less susceptible to signal degradation over long cable runs. It is
for this reason that balanced signal cables are common in professional or
industrial applications. ZAPCO has made this technology available for your
car. ZAPCO engineers also discovered that the pulsating D.C. current in the
automobile chassis and amplifier power wiring caused a significant amount
of low frequency distortion. ZAPCO's balanced SymbiLink™ technology
completely eliminates this distortion.
5
Zapco Digital
Who has the number one name in state of the art audio equipment?
Zapco!
But, when most people think of Zapco, they picture compact, powerful,
great sounding amplifiers. While this picture is true enough, it misses one
big piece of the Zapco legend.
Signal Processing!
Zapco virtually created the concept of high sound quality processing in
the late 70’s when we created the PEQ. This was a high voltage preamp/EQ
with and audiophile input stage and 9 bands of equalization for each
channel. It brought a whole new level of performance to car sound. In the
90’s the name was changed to SEQ and the unit is still in production today.
In the 80’s we took processing to another new level with the PX. This
was the first audiophile quality preamp EQ with a multi-order crossover. In
addition, all four EQ bands were parametric, so now you could customize
the EQ parameters to you car. The result: By the late 80’s even non-Zapco
dealers had to have a source of PX’s for all their competition cars.
The next leap was in the 90’s, when Zapco introduced the SX, (later to
become the SX-SL). This unit expanded the Parametric EQ to 5 bands,
added dual high pass and three way band pass crossovers, added variable
crossover slopes, bass-to-highs balance, and SymbiLink™ Balanced inputs.
Also in the 80’s / 90’s we added the DA II, EQ30, SP-7, and two
electronic crossovers. So by the end of the 90’s many audio competitors
(especially the ones winning) were running two or more Zapco processors.
OK! Cool as that is, it is still just history!
What is Zapco doing for today’s Car Audio fanatic?
We’re Going Digital! Zapco began using on-board digital processing
and control in 1999 as we developed the famous 9.0XD, Class D amplifier.
Now, in 2005 Zapco again takes a concept to an entirely new level of
performance and functionality.
6
First: We have the DSP6-SL. This is a stand alone Digital Signal
Processor that combines all the functions of an entire array of Zapco
processing into a single compact device. We’ve even added functions never
before available from Zapco processors. The DSP6-SL is programmed and
controlled by a PC through a custom Zapco program designed to be both
full functioned and easy to use.
Second: We’ve developed an entire line of Reference Digital amps,
which have all the DSP6-SL functions on-board. You can just hook up your
Reference Digital amp and play music, or you can add the program to your
PC and have full control of all functions to customize your amp to your
needs.
Third: We have developed the DRC-SL in-dash remote that will allow
you to have immediate 24/7 real time access to your programming right from
your dash.
And, perhaps most significant of all, the Zapco Digital Programming
Network. The network will allow you to control up to 16 amplifiers from a
single DRC-SL or PC. Every Digital series component has a USB port to
allow you to enter the network at any node position and control every
component on the network.
No, Zapco is not the first to put a DSP in a product.
What history will remember though, is that Zapco was the first to do it right.
Welcome to the World of Zapco Digital
In this manual we will take you through the programming and control
functions of the DRC6-SL and the on-board DSP in the Reference Digital
amps as well networking operations of Zapco’s DPN system.
7
The Zapco Digital Programming Network
All Digital Reference amplifiers, and the ZAPCO DSP6-SL, stand-alone
Digital Signal Processor incorporate Zapco’s exclusive Digital Programming
Network™ (DPN). This network allows the user to program all amp functions
using a DRC-SL or a PC. The amps DSP can then be programmed to
control Gain, Volume, Crossover, Q-Bass, Equalization, and even Time
Delay. More importantly, the system allows you to network all amps in your
system so you can control up to 16 amplifiers from a single DRC-SL or, with
a PC from a single window.
While the DRC-SL provides functions never before available, its small
size does limit the graphics of the network and it takes a while to make the
settings through the menu system. To allow higher resolution graphics and
to make the setting go much faster, we have also developed a program that
lets you make all adjustments with a PC. Each Digital Control product has a
USB interface. This allows you to plug a PC into any unit on the network and
control the entire network.*
8
Addressing Components on the DPN
The Digital Programming Network consists of 16 amplifier/DSP nodes
numbered 0 through 15. An extra node (number 16) can be occupied by the
in-dash controller (DRC-SL).
NOTE: Turn all amps off before setting address switches
The binary numbering scheme is shown below with the DIP switch.
Settings for Each Node
When using the DRC-SL, leave all switches in the off position
except the Termination switch. Put Sw6 (Termination) to on. The DRC-SL
will then address to Node 16 (As Below)
9
DSP6-SL
Six Channel Digital Signal Processor
Specifications
THD
Analog
Digital
< 0.0015
< 0.0008
Analog
Digital
Sensitivity
Control Input
> 99dB
> 100dB
0.25V to 10V
Mini USB
Dimensions
8.5”L x 7.4”W x 2.35”H
S/N Ratio
10
DSP6-SL
Front Panel Connections
1) RCA Inputs- Six channels of input are available through RCA
connectors.
2) DIN Outputs- Three Din Connectors provide six channels of
SymbiLink™ Balanced output.
3) DIP Switch- Six position DIP switch is used to address the unit and
assign a node on the Zapco Digital Programming Network.
4) USB Port- Like all Zapco DC products, the DSP6-SL has a USB port
to interface with a PC for all DSP programming functions.
5) Digital Inputs- Three optical connectors provide optional inputs.
6) Data Connectors- Two RG connectors provide Data in/out for
network cables (and DRC control input)
7) Power Connector- Provides Power, Ground, Turn On, and Aux
+12 volt out
11
Zapco Digital – Functions and Control
The Zapco DSP6-SL is a stand-alone six channel Digital Signal
Processor. It has all the DSP functions of the Reference Digital amps, but,
as a stand-alone piece, it brings the world of Zapco Digital to all amplifiers.
The RCA inputs allow you to use the DSP6-SL with any head unit and
the SymbiLink™ outputs can be connected to any SymbiLink™ amp
directly, or, you can use SymbiLink™ DIN to RCA adaptors to hook the
DSP6 to any RCA input amplifier.
The Zapco Digital functions include Input Sensitivity, Output Gain,
Crossover, Q-Bass, Equalization, and Time Delay. Each Reference Digital
piece also has an Input Commutator that allows any input to be assigned to
any output. The Commutator also allows input pairs to be summed for a 2channel mono input to any output channel. All DSP functions may be
applied to each channel independently or they may be applied in stereo
pairs.
Control Methods: Zapco provides two options for control of the Zapco
Digital functions. First; you can load the program included with your digital
product into a PC and program all functions directly from the programming
screen. You will find all functions on a single, easy to use, screen designed
to have the familiar look of Zapco processors.
The other Zapco Digital control option is the DSP-SL. The DRC-SL is an
in-dash piece with a Graphic LCD display and will access all Zapco Digital
functions. Because of the size limitations of the DRC-SL screen, this unit will
take longer to operate than the PC, however unlike the PC, the DRC can be
mounted in-dash and will always be available for needed adjustments.
First we will look at the PC programming method, then we will cover the
use of the DRC-SL in-dash unit.
12
The PC Program
A program disk was included with your Digital Reference Amplifier. The
program will work on any Windows OS from 95 forward. The installation is
fast and straightforward, however, there are minor differences with the
different systems and versions.
On your Digital Reference CD you will find the folder ”ZapcoDPN”. In
most cases you simply open the folder and double click “Setup.exe”.
Setup will install the system on your computer. After the program installs
you will need to install the drivers.
Installation of software
1) Load the Zapco Digital CD and install the program by double clicking
on the set-up icon.
2) Power up all devices connected to the DPN. When all devices are
powered up connect the USB cable between any device and your
computer. Wait a few seconds while the DPN firmware is loaded and
Windows notifies you it has found new hardware.
3) When Windows notifies you it has found new hardware do NOT allow
Windows to install the drivers for you. ALWAYS choose to install the
drivers yourself. Windows 98, 2000 and XP will permit you to search
for a driver. When asked to specify a location browse to (C:\\FTDI USB
DRIVER).
4) Install all drivers. Usually, you will need to install the drivers twice.
5) Run shortcut “ZAPCO DPN” from the start menu or from the desktop.
Details for Windows 98:
After installing the program, plug the mini-USB cable between the PC and
one of the network devices.
Typical: After a few moments the program should say it has found new
hardware and will ask how you want to install the drivers. Click next to
screen A. (Next Page)
At screen A, check “Search for best driver” and click Next to go to screen B.
At screen B, (Next Page) check “Specify a location” and Browse to:
(C:\FTDI USB DRIVER 2) and then click Next.
Drivers will then install. In most cases you will again see the new
hardware screen and you will have to install drivers again. This is because
two different sets of drivers are being installed. In some cases the second
set will install automatically.
13
Alternate: If the “New Hardware” screen does not come up when you plug
in the USB cable, go to Control Panel and open “Install New Hardware”.
Your computer will search for new hardware and offer Screen C. Check
“Yes, the device is on the list” and Highlight Zapco Network Amplifier. Click
Next to go to Screen D.
14
At screen D, click Next to go to Screen A, and proceed as above.
15
Details for Windows 2000, XP, XP Pro:
After installing the program, plug the mini-USB cable between the PC and
one of the network devices.
After a few moments the “Found New Hardware” screen will show.
Caution: The default choice is “Install the software automatically.”
(A-1) Do not use this option!
Mark “Install from a specific location” (A-2) and proceed to Screen B.
16
At screen B, check “Include this location in the search” and browse to
(C:\FTDI USB DRIVER 2). If it is not already in then use the drop down box.
Then click Next to install the drivers. When the drivers start to install you will
see screen C. When this screen shows, click “Continue Anyway”. Drivers
will install and you will go to screen D.
17
From Screen D, click Finish to close the installation, and then open the
shortcut “Zapco DPN” to begin programming your Zapco Digital equipment.
Program Upgrades
The Zapco Digital Programming Network is an evolving entity. As it evolves
we will issue program updates. As noted earlier in the section on
“Addressing” your components their is an upgrade mode for each device.
The upgrade mode is entered by setting address switch #5 to the on
position.
Upgrade Screen
18
To put the network into “Upgrade”:
1) Turn off all network devices and set switch 5 of each to the on
position.
2) Connect the PC to the network with the mini USB cable.
3) Power up the system.
4) Open the Zapco DPN program.
The system will come up in Upgrade Mode as in screen 1 above.
5) Click “Start Upgrade.
6) Screen 2 indicates the first unit has been upgraded.
7) Go to Devices (Screen 3) and chose the next device in the network.
8) Repeat the upgrade process for each device in the network.
9) Shut down the network, turn upgrade switches off and restart
network.
19
The PC Programming Screen
The PC programming screen has 5 sections. They are (top to bottom)
Channel Select, Function/Graph, Equalizer, Crossover, and Input/Delay. We
will consider these sections individually and we think you will find the
controls very user friendly.
There are numerous drop-down menus at the arrow points in the DSP
screen. You can use the drop-down arrows to make choices, or simply
highlight the box you want to change and type in your choice manually. Most
small boxes are switches and are switched by placing the mouse over them
and clicking you will also find that you can click into most adjustments and
use your scroll wheel to change the values.
For example: If you click the slider of a EQ level, your scroll wheel will
move the level 1dB per scroll step, you can also click on the slider and
“drag” it or you can highlight the value and type in a new value. Chose the
method you find most convenient.
20
Channel Select
The top section of the PC screen allows you to determine which
available channels you will be programming. The number of options will be
determined by the Zapco Digital item you are programming. The Zapco
Digital Control will identify which unit you are programming and how many
channels are available. You can adjust the channels individually, or in stereo
pairs as required. Simply move the mouse to your choice and click it on.
Function/Graph
In this section you can turn the processing functions on or off to
compare the sound of your modified response to the unprocessed sound by
clicking the buttons on of off with your mouse. You can also monitor the
graph to see, in real time, how your adjustments will affect the input signal.
Equalizer
In this section you can make the adjustments to the parametric equalizer.
•
•
•
The top row sets the level of the center frequency +_18dB
The next row sets the Q (Slope) of the equalization. A low Q affects
a wide range of frequencies while a high Q affects a narrow range
of frequencies. The Graph screen will let you see how the different
Qs affect your response.
The next row lets you pick the type of filter. A Peak filter affects the
center frequency up or down and affects the surrounding
frequencies on either side equally. A High Shelf alters all
frequencies above the center, while a Low Shelf affects all
frequencies below the center.
21
•
The bottom row of the EQ screen sets the center frequencies. The
EQ section is a true parametric EQ. We have set factory defaults at
about ½ octave intervals. However you can alter the center
frequencies to fit the requirements of your car.
There are numerous drop-down menus at the arrow points in the DSP
screen. You can use the drop-down arrows, or simply highlight the box you
want to change and type in your choice manually. You will also find that you
can click into most adjustments and use your scroll wheel.
For example: If you click the slider of an EQ level, your scroll wheel will
move the level 1dB per scroll step.
Crossover/Q-Bass
For each channel, when you have turned on the crossover function, you
can choose to run a High pass, a Low pass, or a Band pass crossover. You
can also choose the crossover slope, from the drop-down menu and you
can choose to use a Butterworth or a Linkwitz-Reiley filter.
Also in this section of the screen, you will find the Q-Bass adjustments.
Q-Bass is an extra EQ function that allows you to pick a bass frequency and
adjust the level and Q of that frequency to match the response of the
vehicle.
Input/Delay
This lower section of the screen contains the Input Commutator, Output
Control, and Time Delay
•
Input: At the top of the screen you picked the channel you would
adjust. Here you can pick which channel you will use as input for the
chosen channel. In this way you can assign the same channel pair
as input to all channels of multi-channel amps.
NOTE: Ch5+6 (as above) means you will “sum” the two channels to
a single mono input. Ch5/6 means you will use channels 5 and 6 as
a stereo input pair.
22
After picking the input channel you can set the channel’s sensitivity
for maximum signal with minimum noise.
•
Output: After the sensitivity has been set at optimum for all
channels you can balance the channels by attenuating the output of
the louder channels to bring all channels into correct acoustic
balance.
•
Time Delay: Time delay allows you to adjust the arrival time of each
speaker’s output by delaying the closer speakers. This will improve
the sound stage and provide superior imaging and balance. With
the Zapco Digital pieces this is an easy operation.
1) Measure the distance from your head (at your listening
position) to each speaker in millimeters or inches.
2) Note the distance of the farthest speaker.
3) Add to each speaker the inches need to equal the furthest
speaker, and note how many inches are needed for each.
4) Now just dial in the delay to match the added inches for
each speaker and your delay is set.
Time Delay
In a car environment you can’t sit in the ideal listening position. Time
delay adjusts your position by moving the “apparent” locations of the
speakers. The example below has five speakers.
The chart shows how to use the delay to correct your position. With the
Zapco Digital system, you need only measure the distances and enter them.
The program will do all the time formulas automatically.
23
Distances:
A
B
C
D
E
30”
70”
75”
60”
20”
Longest Distance
Delay Length
75” - 30” = 45” delay
75” - 70” = 5” delay
No delay needed
75” - 60” = 15” delay
75” – 20” = 55” delay
75”
Adjust the delay of each speaker’s output channel to match the delay in
inches (in.). The system will automatically show the corresponding figures in
millimeters (MM) and milliseconds (ms).
24
The DRC-SL In-Dash Programmer
Yes, this is the age of the computer and Zapco has developed a superb
programming system for your PC or laptop, which we have just covered.
However, while the computer program is perhaps the easiest method of
controlling you Zapco Digital system, it does have a couple of major
disadvantages. First, it’s bulky and second, it needs to be set up.
Neither of these is a problem when you’re home and working on the
system, but what happens when you’re on the road? We felt that with all the
versatility and sonic potential of the Zapco Digital products, our customers
would want a system to make programming changes whenever the need
arose, without having to set up their computer.
So we present the DRC-SL in-dash controller. You can mount it right in
the dash and have your programming available 24/7.
NOTE: Programming your Zapco Digital Network while driving is
just like watching DVD’s…Dangerous. So please don’t do it. Pull off the
road, make your programming changes, and resume your journey.
Concentrate on one thing at a time and live safe.
25
DRC-SL
Front Panel Controls
The DRC-SL
All of the DSP functions of the Reference Digital series amplifiers or the
Zapco DSP6-SL processor can be controlled right from your front seat, with
the DRC-SL in-dash controller. A few up/down clicks of the joystick control
will take you to any function and no more than four right/left clicks will take
you to any adjustment.
Control - 1
The DRC-SL has been laid out to make control as easy and
straightforward as possible. On the left is a mini Joystick control that allows
you to move through the menus (right/left) and to pick from within the menus
or change values (up/down). There is also a ”quick“ menu accessed by
pushing the joystick. This Quick Menu offers a master volume control for
multiple channels as well as functions to personalize how you react with
your DRC-SL.
Menu/Adjustment Screen - 2
The Menu/Adjustment screen displays the available menus and shows
what control and function you are using at any given time. The following
pages detail the screen sections and Menu navigation.
Memory - 3
Once you have practiced a little with the DRC-SL, you will find that the
settings are actually quite speedy and easy to make. However once you
have found a scheme of settings you like you will probably want to save
them “just in case”. Also, with the wide versatility of the DRC-SL, you may
want to have different settings for different music, or even different moods.
The DRC-SL provides 5 preset memories so you can instantly recall your
favorite settings. There is also a temporary memory that automatically saves
you current setting as you exit out of the system or if you have not made an
26
adjustment recently. This is to prevent the accidental loss of your current
settings if you have not yet put them into a memory.
Networking – USB Port - 4
Yes, the DRC-SL is a Zapco Digital Programming Network piece. Your
DRC-SL is addressed in the network and you can control all digital functions
of up to 16 amplifiers. Of course the system can be controlled by either the
DRC-SL or by a PC. To make it easy to plug your PC into the system, we
have included a USB port right on the DRC-SL, as well on every DC
Reference amplifier. So if you prefer using the PC, you can plug it in right at
the in-dash controller and never have to disturb your installation.
Adjustment Screen
You will find that navigating through the DRC-SL menus is quick and
easy with just a little practice.
The DRC-SL adjustment screen has several areas. Toggle the Control
joystick right to move from one area to the next. Toggle the control left to go
back. Toggling the stick continually left will return to the home screen and
save any current settings you have made in a “temporary” memory.
The shaded area and the Up/Down arrows highlight the active screen
area as you move through the menus.
Function: This area chooses the DSP function you will work with.
Toggling the control up or down to set:
a. Sensitivity (input gain
b. Volume (Output gain)
c. Q-Bass (Bass Boost)
d. Crossover
e. Equalizer
f. Time Delay
g. Source (of input for adjustment channel)
h. Mode (Choose which functions will be active)
27
Adjustment Channel: Toggling the control up or down chooses the channel
(or channel Pair) you will be making adjustments to. You will find you can
adjust channels in pairs or individually. The choices available in this area will
vary with the number of channels in the amplifier.
Band: This is a sub-menu available only in the EQ Function and picks which
EQ band will be adjusted within channel selection.
Action: This determines what action you will be taking within the chosen
function. See the chart below for a menu of actions in each function. Up or
down toggle of the control changes the action applied to the function.
Value: This is the empirical value of the chosen action. Depending on the
action, it may be displayed as dB Level, frequency, Q, or even crossover
type. This is where the actual adjustment is made.
Menu Map
Home Screen
Node: The home screen displays the network node available for
programming. Each amplifier on the network occupies a separate
node. The node is listed by amplifier model number. Toggle up or
down to pick the Amplifier/DSP you want to program.
Function
Source: Adjustment channel (Channel or channel pair choices
determined by amplifier).
Action Screen:
Input - Allows you to choose which channel or channels will
be used as the input for your adjustment channel.
Sensitivity: Adjustment channel (Channel or channel pair choices
determined by amplifier).
Action Screen: Toggle up or down to choose as below.
Input Gain - Allows you to match input gain to the head
unit’s output. Toggle value up or down to adjust.
Attenuation - Toggle value up or down to turn on -12dB
attenuation for balanced input.
Volume: Adjustment channel (Channel or channel pair choices
determined by amplifier).
Action Screen:
Level - Toggle value up or down to balance output gain of
multiple amplifiers in system.
28
Q-Bass: Adjustment channel (Channel or channel pair choices
determined by amplifier).
Action Screen:
Freq - Allows you to choose which bass frequency will be
boosted by toggling value up or down.
Q - Allows you to set the slope of the bass boost by toggling
the value up or down.
Level - Allows you to set the bass boost gain 18dB by
toggling value up or down.
X-Over: Adjustment channel (Channel or channel pair choices
determined by amplifier).
Action Screen:
Type - Allows you to choose High Pass, Low Pass, Band
Pass or Crossover off by toggling value up or down.
Filter - Allows you to choose Butterworth or Linkwitz-Riely
filters by toggling value.
Order HP - Allows you to set HP slope by toggling value.
Freq HP - Allows you to set HP frequency by toggling
Value.
Order LP - Allows you to set LP slope by toggling value.
Freq LP - Allows you to set LP frequency by toggling value.
EQ: Adjustment channel (Channel or channel pair choices
determined by amplifier).
Band selection - Toggle up/down to select adjustment band (Band1 to Band-10)
Action Screen:
Freq - Each of the 10 bands has a default center frequency.
From this window you can customize the EQ by toggling the
Value up or down to set desired new center frequency.
Q - Toggling this value up or down changes the “Q”. A high
Q has steep slope and affects only a narrow range of
frequencies. A low Q number has a shallow slope and
affects a wider range of frequencies.
Level - Toggling this value up or down allows +/-18dB boost
or cut at the center frequency.
Type - Toggling this value allows you to pick a Peak (
),
High shelf (
), or Low shelf (
) filter type.
Delay: Adjustment channel (Channel or channel pair choices
determined by amplifier).
Action Screen:
Time - Toggle value up or down to delay arrival time for this
adjustment channel.
29
Mode: Adjustment channel (Channel or channel pair choices
determined by amplifier).
Action Screen:
Turn On - Toggle value up or down to turn functions on or
off.
DRC-SL Quick Menu
There are three quick menu functions in the DRC-SL. These are
accessed by pushing in on the joystick to the left from the Home Screen.
Toggle up or down to navigate from the following functions:
Master Volume - Toggle “Correction” field up or down to make global
adjustments to all volume channels of all amps on the network. This allows
you to have a “Master” control over volume without changing the relative
settings.
Scroll - Toggle the “Delay” value up or down to change how fast the DRCSL responds to your joystick commands.
Display - There are four actions in the Display function:
First is Brightness. This controls the intensity of the back lighting in
the display screen.
The other three actions are the screen color components: Red,
Blue and Green.
The level of each of the three colors components in the screen can
by changed by toggling each color value up or down with the
joystick. This allows the user to produce virtually any screen
background color he/she desires by altering the levels of the three
components.
30
Technical Assistance
Should you experience a problem with your DSP6-SL or DRC-SL, please
contact the dealer that sold you this product. If your dealer is unable to
solve your problem, you may contact the factory service department directly.
Phone: (209) 577-4268 Monday - Friday, 8AM - 5PM Pacific Standard
Time
FAX: (209) 577-8548
Also, check our web page, www.zapco.com, for tips. You can also e-mail
for technical help directly from our web page.
If you need to return this product for repair, please call the factory for a
Return Materials Authorization (RMA) number. We will ask you for
information that will include your name, return shipping address, daytime
phone number, model and serial number, and a detailed description of your
problem. A photocopy of your original purchase receipt is necessary to
determine warranty status and should also be included. Once we issue you
an RMA, please write it in a highly visible area on the package. ZAPCO will
not accept any packages that do not have a valid RMA number clearly
marked on the outside of the package.
Once you have a valid RMA number, send all repairs to:
A.R.P.A. of America Corp.
D.b.a. Zapco
Attn.: Service Department
413 S. Riverside Drive
Suite D
Modesto, California, 95354
31
WWW.
ZAPCO.
COM
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