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Primaluna Prologue Premium Power Amplifier

proprepow
The DiaLogue Premium series has set the bar for what an all-tube amplifier should be: Sexy... exotic...versatile... and built with exceptional features not found in any other amp in its class including: ...Read more

The DiaLogue Premium series has set the bar for what an all-tube amplifier should be: Sexy... exotic...versatile... and built with exceptional features not found in any other amp in its class including:

Manufacturer Site Link: Primaluna Prologue Premium Power

Brand: PrimaLunaPrimaLuna £ 2,198.00 each


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Adaptive AutoBias . As with all PrimaLuna amps, you never have to worry about biasing your amp ever again.  At the flip of a switch, the board is re-calibrated for EL34s or KT88s (or KT120s), ensuring the bias is set to its optimal level for whatever tube you are using. Every DiaLogue Premium Series amplifier can be ordered with either set of power tubes installed.

 All critical signal paths are wired with silver-plated, oxygen-free continuous crystal (OCC) copper with a Teflon dielectric for superior signal speed and increased clarity.

Premium parts from around the world including Takman resistors from Japan, and SCR tin foil capacitors made in France.

Exclusive AC Offset Killer. This piece reduces transformer hum, resulting in lower noise and the blackest background ever.

New front-end circuitry. The DiaLogue Premium uses three 12AU7 tubes per channel, plus further refinements to the ProLogue Premium circuit.  The result is even lower distortion and increased bandwidth.

Stereo or Monoblock operation - It's as simple as flipping a switch, and the DiaLogue Premium Amplifier instantly switches from stereo to monoblock operation!

All the features found in the award-winning DiaLogue Series: Triode / Ultra-linear switching, point-to-point wiring, conservative design to extend the life of your tubes as well as critical components inside the amp.

The DiaLogue Premium Series also includes the same innovative circuits found in the ProLogue Premium series, that protect the amp at every level:

BTI-circuit. BTI stands for "Bad Tube Indicator." On the chassis’ deck in front of each power tube, is a small LED that lights up if the tube goes bad. This circuit works hand-in-hand with the new Adaptive Auto-Bias circuit.

PTP-circuit. If the power transformer should overheat, this "Power Transformer Protection" circuit cuts primary power, allows the amp to cool down, then resets itself.

OTP-circuit. The "Output Transformer Protection" circuit protects the output transformers in the event of a massive tube failure or user error.

+B relay. Replaces the plate fuse and works in conjunction with the OTP-circuit to protect the amp against tube failure. This method is less intrusive sonically and the relay resets itself once the faulty tube is replaced.

Brand URL : https://www.primaluna-usa.com

Output

Stereo 35 Watts per channel; Mono 70 Watts per channel

Frequency Response

stereo 9Hz - 130kHz -3 dB; mono 7Hz - 140kHz -3 dB

THD

Less than 1% at rated power

S/N Ratio

75 dB flat; 92 dB Wtda

Input Sensitivity

stereo 600 mV, mono 900 mV

(for rated power at maximum volume setting)

Input Impedance

100k Ohms

Power Consumption

255 Watts

Dimensions

22.7" x 18.4" x 12" / 577 mmx 468 mm x 305 m (LxWxH)

Weight

49.5 lbs / 22.5 kg

Inputs

1 pair Stereo RCA; mono: 1 single RCA

Outputs

stereo: 4,8 &16Ohm Speaker Taps;

mono: 2,4&8 Ohm Speaker Taps

Tube Complement

4 x EL34

4 x 12AU7