M 33 SET Monoblock Amplifier

We want to start the introduction of Wall Audios latest work, the monoblock amplifiers M 33 SET, unconventionally with a gratitude to the brilliant Lee De Forest. His invention in 1906 – the high-vacuum triode – allows audiophiles all over the world up to this day a unique sound experience.

Our monoblock power amplifiers are built on the base of this wonderful invention and include this high-vacuum triode as an essential feature. Therefore our amplifiers could convince connoisseurs in a playful way.

One of the advantages of our monoblock power amplifier M 33 SET is the automatic bias, so no maintenance is required – even at a necessary change of tubes no corrections are necessary.

Special features

No negative feedback!
“Super-Shunt”-Power Supply

Technical details

Tubes: 1 x 6C33 / 2 x ECC82 NOS
Frequency response: 10Hz-20kHz@0.5 dB
Output: 18W / 4-8 Ohm rated power per channel
Input: 0.770 mV
Dimension: 250 x 340 x 220 (w x d x h)
Power consumption: 135 VA per Channel
Weight:13 kg
Security: Automatic stabilized bias current of power tube | High voltage LC Choke (Pi) Filter | Tube overload protection
Info: Anti-magnetic chassis | Pure A Class | “Super-Shunt”- Power Supply | Internal silver ribbon insulated wiring | Speaker transformer First class material with a ferrous core (NiFe and CoFe)
Option:  Sym input with 600 Ohm Transformer | Monitoring over Opus 88 preamplifier