PrimaLuna® ProLogue One

1
ProLogue One
integrated amplifier
®
PrimaLuna ProLogue One
• Made by hand with the finest point-to-point wiring and
• Premium parts featuring fully-vented, ceramic, tube sockets;
workmanship equal to—or better than—any product you
can buy at any price.
Nichicon and Realcap capacitors; WBT-style speaker terminals; ALPS
volume control; and gold-plated input jacks.
• SoftStart™ circuitry and advanced conservative design provides
• Adaptive AutoBias™ (a PrimaLuna exclusive) reduces distortion
extended tube life.
40% to 50%. No need for matched tubes or bias adjustments.
• EL 34 Output tubes, 35 wpc. Quick-release tube cage included.
• Hand-rubbed, high gloss finish with black or silver faceplate.
“Lustily, heartily, and enthusiastically…
recommended.”
“PrimaLuna ProLogue One is now my ‘affordable reference’ amplifier. . . . to my ears, no
equals at its retail price . . .”
— Art Dudley, Stereophile, February 2005
“How does it sound? Bitchin’, that's how it
sounds.”
— Jeff Dorgay, The Absolute Sound, December 2004
“It’s this sort of quality you'd expect from a
much more expensive amplifier.”
— Dominic Todd, Hi-Fi World, U.K., August 2004
— Ken Kessler, Hi-Fi News, U.K., July 2004
“It has become absolutely needless to say
that we highly recommend this amplifier to
everyone looking for first-class sound at an
affordable price.”
— Claudio Checchi, Audio Review, Italy, March 2004
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ProLogue Two
integrated amplifier
®
PrimaLuna ProLogue Two
The ultimate integrated amp in its class
For just a little more than the ProLogue One, with greater power and
even higher performance from the following upgrades:
• KT88 Output Tubes. We use the current production copy of the
legendary British Genalex KT88. The tube simply sounds spectacular,
offering tremendous body and punch while maintaining the warmth
and humanity you expect from an all-tube amplifier.
• Fast Recovery Diodes. The result is increased definition, detail,
and control, especially during complex musical passages.
• Hand-rubbed, high gloss finish with black or silver faceplate and
quick-release tube cage.
• Solen capacitors made in France provide a richer midband and
more life-like clarity.
“The PrimaLuna ProLogue Two garners my
strongest recommendation. It’s not merely
a great tube amp, but a great amp, period.”
— Ed Kobesky, Positive Feedback Online, March 2005
“I loved it, and strongly recommend you try
one at the earliest opportunity.”
— Jim Hughes, Hi-Fi+, U.K., November 2004
“One of the best tube amps I have ever heard,
irrespective of cost.”
— Paris Kotsis, Sound and Vision, Greece, December 2004
3
ProLogue Three
preamplifier
®
PrimaLuna ProLogue
Three
• True dual mono design with two toroidal power transformers
• The ProLogue Three is non-inverting and has two pairs of
and choke regulation.
outputs so you can easily bi-amp or add a powered subwoofer.
Low output impedance compatible with nearly every tube or solid
state power amp.
• Point-to-point wiring and premium parts including Alps Blue
Velvet potentiometer, Solen and Swellong capacitors, and ceramic
tube sockets.
• Tube rectification using TWO 5AR4 tubes, one for each channel.
Designed with no negative feedback and no cathode followers
for a vibrant midrange, creating a three-dimensional soundstage
rarely encountered.
• Low noise achieved with DC heater supply and 11dB of gain.
The power supply is perfectly de-coupled with an ultra-wideband,
constant source impedance, and low corner frequency of over
two octaves below the audio bandwidth (4Hz).
Optional ProLogue Phonostage can be added at any time.
• Hand-rubbed, high gloss finish with black or silver faceplate and
quick-release tube cage. Weighs a substantial 17.5 lbs.
4
ProLogue Four
amplifier
5
ProLogue Five
amplifier
®
PrimaLuna ProLogue
Four and Five
ProLogue Four • Made by hand with the finest point-to-point wiring and workmanship equal to—or better than—any amplifier you
can buy at any price. • SoftStart™ circuitry and advanced conservative design provides extended tube life. • EL 34 Output tubes, 35 wpc.
• Premium parts featuring fully-vented, ceramic, tube sockets; Nichicon and Realcap capacitors; WBT-style speaker terminals; ALPS volume
control; and gold-plated input jacks. • Adaptive AutoBias™ (a PrimaLuna exclusive) reduces distortion 40% to 50%. No need for matched
tubes or bias adjustments. • Hand-rubbed, high gloss finish with black or silver faceplate. Quick-release tube cage included.
ProLogue Five • KT88 Output Tubes, 40 wpc. We use the current production copy of the legendary British Genalex KT88. The tube
simply sounds spectacular, offering tremendous body and punch while maintaining the warmth and humanity you expect from an all-tube
amplifier. • Solen capacitors made in France provide a richer midband and more life-like clarity. • Fast Recovery Diodes. The result is
increased definition, detail, and control, especially during complex musical passages. • Hand-rubbed, high gloss finish with black or silver
faceplate. Quick-release tube cage included.
The PrimaLuna ProLogue Four is based on the top-rated ProLogue One integrated amp. Ken Kessler, one of the most widely-read
reviewers in the world, was moved to state, “The PrimaLuna ProLogue One is my ‘affordable reference’ amplifier.”
The PrimaLuna ProLogue Five draws from Hi-Fi+’s Product of the Year, the award-winning ProLogue Two integrated amp. Ed Kobesky
from Positive Feedback asserts, “The only way you’d outgrow this amp is if you upgraded to speakers the size of a Kia, and even then, the
ProLogue Two could probably power them to a reasonable volume.”
We’ve taken the ProLogue Four and Five one step further. Through a special design phase-splitter and driver stage circuit, the ProLogue Four
and Five have zero negative feedback. The result is a remarkably more natural presentation.