Hiwatt T40/20 Combo 2x12

The T40/20 in its 2x12 form: a quartet of EL84s over two 100-watt Octapulse 100-12 speakers, which is the widest the Tube Series gets before it becomes a head and a cabinet.

Power scaling drops 40 watts to 20 for breakup and compression at lower volume. The 2024 revision widened the EQ and revoiced the gain channel for a broader overdrive range, and the pull-out tone shift on the Middle control adds another voicing. True spring reverb and an effects loop are both footswitchable, and a line output feeds front of house.

Wattage	Switchable - 40W or 20W
Channels	Normal, Overdrive
Inputs	1/4" Normal/Overdrive (Channel Selector); 3.5mm AUX Input; 1/4" Effects Loop Return; 1/4" Channel/Reverb Footswitch Input
Outputs	1/4" Extension Speaker, 1/4" Effect Loop Send, 1/4" Line Output
Preamp Valves	2 x ECC83 (12AX7), 1 x ECC82 (12AU7)
Output Valves	4 x EL84
Controls	Master Volume; Reverb Level; 3-Band EQ shared by both channels - Treble, Middle (Pull potentiometer for Tone Shift), Bass; Overdrive Gain; Normal Gain; Normal/Overdrive Channel Toggle; Standby - On/Off; Mains - On/Off
Speakers	2 x Hiwatt Octapulse 100-12, 100 W, 12-inch
Reverb	True spring reverb, footswitchable
Power Stage	Cathode-biased Class A
Construction	Birch ply