Power Amplifiers

Mystere PA 11

Stereo Power Amplifier 40+40 watt EL34 full pentode output stage, dual-mono Adaptive AudoBias, point-to-point wired


When we break down our integrated amplifiers into separates, we offer much more than the pre- or power stage of that integrated. So while the pa11 power amp evolves from the critically-acclaimed ia11, it offers much more. For instance…

We once again offer 40 watts of pure pentode output per channel, maintaining all the glory and beauty of tubes. However, the transformers in the pa11 are completely different, providing much more efficient power that delivers incredible depth and punch. We do implement a very modest amount of global negative feedback to make the amp rock solid.

We also use a high power, low impedance, solid state rectification circuit followed by a massive pi network using the highest quality caps and resistors. In the signal path are only two high quality Solen coupling capacitors.

Finally, we implement Mystère’s proprietary Adaptive AutoBias circuit, specifically tuned for Pentode operation. Optimized for EL34s (but allowing for many others) the AutoBias circuit is continuously tweaking each tube to its sweet spot. No biasing, no need for matched tubes, no worries.

Combine the pa11 with the ca11 preamplfier, and you will enjoy the finest quality parts and design, with sound rivaling systems costing twice as much.

$2395.00

Specifications:

Power output 40+40w @ 8Ohm 1%thd
Bandwidth 4hz-80khz +/-0,3db @ 1w
20hz-52khz +/- 1db @ 40w
Noise <-90db wtd-a
Gain 26db (20x)
Distortion 0,2% @ 1w
0,25% @ 10w
1% @ full power 40w
Consumption 200w max
Net weight 20,5 kg
Dimensions 320x370x200 mm (lxwxh)


Mystere PA 21

Stereo Power Amplifier 55+55 watt KT88 full pentode output stage, dual-mono Adaptive AudoBias, EL34/KT88 switch, point-to-point wired

The pa21 maximizes all our efforts with more power, more dynamics and greater flexibility. The full-sized chassis allows us to use larger transformers and bigger caps and resistors, delivering greater control and detail.

The result is 55 watts of pure pentode output per channel, and improved stability throughout the amplifier. We do implement a very modest amount of global negative feedback to make the amp rock solid.

With more room at their disposal, our engineers continued to search for improvements, such optimal efficiency, the lowest signal degradation and the greatest immunity from noise and hum. They accomplished just that, with carefully separated and laid-out signal ground, power supply ground and chassis ground schematics.

We’ve also advanced our proprietary Adaptive AutoBias board with a special circuit that re-calibrates it for EL34s or KT88s. One flick of a switch allows you to run either tube at its optimal level. And as always, the board continuously monitors each tube, tweaking it to its sweet spot. There’s no biasing, no need for matched tubes, no worries.

Combine the pa21 with its matching full-size ca21 preamplfier, and experience a truly reference-quality system, without a typical reference-quality price tag.

$3595.00

Specifications:

Power output 55+55w @ 8Ohm 1%thd
Bandwidth 4hz-80khz +/-0,3db @ 1w
9hz-52khz +/- 1db @ 40w
Noise <-90db wtd-a
Gain 26db (20x)
Distortion 0,09% @ 1w
0,2% @ 10w
1% @ full power 55w
Consumption 230w max
Net weight 27 kg
Dimensions 430x420x200mm (lxwxh)