Hiwatt Custom 20
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- This item is covered for 3 years
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Information
Information
Manufacturer Information
Hiwatt
https://www. hiwatt.co.uk
sales@hiwatt.co.uk
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Safety manager:
Algam SAS
Email: contact@algam.net
Address:
Historical Context and Positioning in the Range
The "Custom 20" follows the tradition of 1x12 tube combos inspired by British circuits from the 60s and 70s. With its 20 watts, it sits between a high-end rehearsal amp and a "club" stage tool capable of handling pedals while maintaining a strong character.Who This Amp Is For
Ideal for intermediate to advanced guitarists seeking a portable combo powerful enough for band use. Excellent in studio for its rich dynamics, very comfortable in rehearsal and club stage settings. Its playground covers blues, classic rock, indie, and pop, with snappy cleans and expressive crunch tones; driven by the boost, it easily tackles muscular classic rock.Technical specifications
| Category | Guitar combo | Category | Amplifier |
| Technology | Tubes | Number of channels | 2 |
| Input | 2 x jack | Speaker diameter | 12" |
| Output | Cabinet 3 x jack | Number of speakers | 1 |
| External cabinet output | No | EQ | 3 channels |
| Effects loop | No | Headphone output | No |
| Reverb | No | Color | Black |
| Footswitch input | No | Finishing | Black tolex |
| Amp tubes | 2 x EL84 | MIDI | No |
| Pre-amp tubes | 3 x 12AX7 | Power output | 20 W |
| Cabinet | Straight | Weight | 20 kg |
| Cabinet impedance (Ω) | 8 Ω | Dimensions (mm) | 497 x 250 x 490 |
| Speaker | Open | ||
Questions frequently asked
Is the Hiwatt Custom 20 powerful enough for playing in a band?
Its 20 W tube output and two EL84 tubes make it suitable for rehearsals and club gigs. The moderate headroom allows the power stage to be driven for progressive compression and crunch.
What sound does the combo produce with its Fane speaker?
The open-back cabinet houses a 12-inch 8-ohm Fane Acoustics F25 speaker. The reported response combines a bright clean tone, singing mids, and solid low end, while the Gain Boost adds more pronounced saturation.
Is there an effects loop or reverb?
There is no effects loop, reverb, headphone jack, footswitch connection, or MIDI interface built-in. Overdrive, delay, and modulation pedals should therefore be connected up front, before the two Hi/Low jack inputs.
How to adjust the crunch on this amp?
The preamp with 3 x 12AX7 tubes offers a gain control with a push/pull 'Gain Boost' function, a Master Volume, and Bass, Middle, Treble EQ. A Bright switch is available to brighten the high end, especially at low gain.
What speaker impedances are available?
Three speaker outputs on jack connectors are provided for 4, 8, or 16-ohm impedance. The internal speaker has an 8-ohm impedance.



