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Description

The Terror Bass is a single-channel bass head built around a valve preamp taken from the AD200 design and a Class D power amplifier. The power section delivers 250 W into 8 ohms or 500 W into 4 ohms, and the unit weighs 4.65 kg.

The preamp uses one ECC83 (12AX7) and one ECC81 (12AT7). Controls are Pad, Clean, Gain, Bass, Middle, Treble and Volume. The Clean switch tightens the low end for extended-range or percussive playing, and variable input sensitivity lets it work with both active and passive basses.

For connections, the head has a speaker output and a balanced DI out with a ground lift switch to reduce hum when going direct to a desk or interface. An effects loop uses a valve-driven send (12AT7) and a solid-state return. Two optional footswitches, the FS-1 and FS-2, are listed as accessories.

Specifications

Brand
Orange
Model
Terror Bass
Category
Live sound › Amplifiers

Audio

Type
Single channel, hybrid (Class D power amp with valve preamp)
Output power at 8 ohms
250 W
Output power at 4 ohms
500 W
Preamp valves
1 x ECC83 (12AX7), 1 x ECC81 (12AT7)
Input sensitivity
Variable, for active or passive basses

Controls

Controls (right to left)
Pad switch, Clean switch, Gain, Bass, Middle, Treble, Volume
Clean switch
Yes
Ground lift
Yes

Outputs

Direct out
Balanced DI out
Speaker and line outputs
Yes

Effects loop

FX loop
12AT7 valve-driven send, solid-state return

Physical

Unboxed dimensions (W x H x D)
30.7 x 19 x 16 cm (12.1 x 7.5 x 6.3 in)
Boxed dimensions (W x H x D)
36.5 x 21.5 x 24.5 cm (14.37 x 8.46 x 9.64 in)
Unboxed weight
4.65 kg (10.25 lbs)

Other

UPC
5060299177277
Optional footswitches
FS-1, FS-2
Manual
Available for download

Documents

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Data: orangeamps.com, tamsta.com; photos: Orange product page · updated 2026-10-26 · Report a mistake