HAMMER

300W/700W low gain hybrid amplifier based on 70s Sunn Model T.
The preamp has three 12AX7 tubes, two channels (brite and normal) and FX loop (tube, not silicon parts).
The fx loop can be activated by a footswitch (included).
100% output power @ 4 Ohms, 50% @ 8 Ohms, 25% @ 16 Ohms.
(Read output power protection details below)
Size an weight: 300W 20x20x10cm 3kg. 700W 26x20x10cm 3kg.
It includes a plastic case with foam inside (35x28x14cm).

Controls: normal gain, brite gain, mids, low, high, vol.
Connectors: in, footswitch, send, return, speakers (x2).
Leds: status (power amp).

The Icepower 300AS1 and 700AS1 modules are designed to deliver maximum output powers of 300 W and 700 W, respectively. Continuous operation at high power levels can trigger their thermal protection systems. In the 300AS1, the output signal is cut off for approximately 10 seconds, whereas in the 700AS1, the output power is temporarily reduced to approximately 400 W for 2–3 seconds.

Stress tests conducted on both modules produced the following results:

300AS1:
150W, ok
200W, protected after 200 sec
250W, protected after 60 sec

700AS1:
400W, ok
500W, protected after 200 sec
600W, protected after 90 sec