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PrimaLuna ProLogue Premium Stereo Power Amplifier (BLEM)

PrimaLuna ProLogue Premium Stereo Power Amplifier (BLEM)

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Regular price $1,899 In stock now!
Regular price Sale price $1,899 In stock now!
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PrimaLuna ProLogue Premium Stereo Power Amplifier (BLEMISHED)

Fully tested, functions perfectly. See photos for cosmetic issues

Serial No: 10115774

PrimaLuna is one of the few audio brands that holds its value over the years. While the new EVO 200 series has taken PrimaLuna to a new height, the ProLogue Series is not far behind, and this is a great deal that will not last long. 

Most of our blemished PrimaLunas have very minor issues, often obscured by the tube cage, or simply not noticeable at a distance, but this guy has been in a fight and has the scars to show it. Yep, you should see the other guy. No internal injuries--this unit has been extra-carefully examined and tested.

This is an earlier version of the ProLogue Premium Amplifier and is stereo only. It cannot switch between stereo and mono.

Comes with a three-year parts-and-labor warranty, and a six-month warranty on the tubes. 

Compare PrimaLuna construction to any other brand, at any price. You'll be amazed.

Power: Stereo
Power: Mono
Freq. Response
S/N Ratio
Input Sensitivity
Input Impedance
Power Consumption
Standard Tube Complement
Dimensions (WxHxD)

What PrimaLuna ProLogue Premium Stereo Power Amplifier (BLEM) owners think:

Read Owner Reviews »

Bad Tube Indicator

PrimaLuna engineers wanted to make owning a tube amp so simple you would have no excuse not to have your tube dreams come true.

If a tube fails, Adaptive AutoBias will instantly put the amplifier into protection mode so no parts can get damaged. A red LED will light up in front of the tube that needs replacing. Simply plug in another tube, and listen. No guessworkNo smoking ampNo getting out the soldering iron or dropping your amp off at UPS

Custom Toroidal Power Transformers

Power transformers generate two types of noise, magnetic and acoustic. That's why toroidal power transformers are used in the very best audio products. Compared to standard transformers, toroids radiate about 1/10 the magnetic field that pollutes music and obscures detail. Additionally, the absence of an air gap typically means toroids have an 8:1 reduction of acoustic noise. As transformers are the most expensive components in any audio product, manufacturers will even house cheaper C-core and EI-core transformers in an outboard power supply box with an umbilical cable rather than upgrade to an expensive toroid. The increased cost is significant, but PrimaLuna doesn’t cut corners. All PrimaLuna products use massive, potted toroidal transformers. PrimaLuna transformers are enclosed in a metal housing and then potted in a non-microphonic resin to further reduce noise and to protect the windings from moisture and deterioration forever.

Custom Super-Wide-Bandwidth Output Transformers

Output transformers are the most important part of any tube amp. They determine how low the bass will reach and how high the top end goes. 250 watts of power will have no top and bottom extension if the output transformers don't have the bandwidth. We use lower power to extend tube life, and bandwidth to give you slam. Transformers are the most expensive components in an amplifier, so manufacturers save money by using ‘off the shelf’ units available on the market. PrimaLuna output transformers are custom-designed, wound in-house, and massive. One reason why no other brand sounds like a PrimaLuna. "The flat tops and bottoms of these squarewaves correlate with the amplifier's extended low-frequency response; PrimaLuna's output transformers are of excellent quality." -John Atkinson, Stereophile Magazine

Adaptive Autobias

What most companies call Auto Bias is actually "Cathode Bias"- A commonly used method that is cheap to make, and often found in guitar amps, but also $20,000 high end audio amps. It reduces the available power of the amp and runs the tubes hard, meaning shorter tube life and failures via "shorts".

PrimaLuna's Adaptive AutoBias is a true, smart technology employing an array of sensors to monitor tubes and make adjustments seamlessly in real time. More important, it is the ONLY circuit of its kind that is truly "adaptive" by addressing "tube pinch off" at higher volumes, therefore reducing distortion by over 50% and greatly extending tube life. Adaptive AutoBias is completely passive and NOT in the signal path. The result is low to no maintenance, long tube life, and the lowest possible distortion for amazing sound.

Adaptive AutoBias also provides unparalleled flexibility by allowing use of almost any tube on the market today. It even has a fine-tuning switch for EL-34 and KT88/KT120/KT150 tube types.

PrimaLuna Power Amplifier Feature Comparison

EVO 400

EVO 300

EVO 200

EVO 100

Stereo to Mono Switching
XLR Input
Swiss Made Wiring
Takman Resistors
AC Offset Killer
Triode/Ultra-Linear Switching
Adaptive AutoBias
KT150 Compatible
Point-to-Point Wiring
Bad Tube Indicator
Wide-Bandwidth Output Transformers
Toroidal Power Transformers