This is the Legendary Hiwatt Circuit that started it all - each DR103 is an authentic and faithful reproduction of Dave Reeves’ original amplifier. The Hiwatt Custom 100 is still proudly hand built and hand-wired in our Custom Shops in England to Harry Joyce’s exacting military specifications. Hear the sonic difference that the highest quality English Partridge Spec. Transformers can produce.
— Normal and Bright channels with independent High and Low impedance inputs for each channel. Versatile and intuitive, perfect for bringing life out of dark pickups or taming shrill high end in bright pickups.
— Link the two channels for extra punch and dynamic control of your EQ via the independent channel volumes. Unleash the ’jumped’ channel sound Hiwatt is famous for.
— All the clean headroom you could want.
Specs
Wattage: 100W Channels: Normal, Bright
Inputs: Normal Hi, Normal Low, Bright Hi, Bright Low
Output: 2 x 1/4" Speaker Out
Preamp Valves: 4 x ECC83 (12AX7)* Output Valves: 4 x EL34
*Optionally replace one ECC83 for phase inverter with an ECC81 (12AT7)
Controls:
- Normal Volume
- Bright Volume
- 3-Band EQ shared by both channels — Bass, Treble, Middle
- Presence — Treble Boost shared by both channels
- Master Volume
- Standby — On/Off
- Mains — On/Off
Voltage: Switchable using World Voltage Selector on the rear panel — 100V, 115V, 230V, or 240V
Impedance: Switchable using Impedance Selector on the rear panel — 4 Ω, 8 Ω, or 16 Ω
Based on Hiwatt’s original circuit designed by Dave Reeves.
Original Partridge spec English transformers.
Meticulously hand-wired to Harry Joyce’s exacting military standards.
Proudly manufactured in our Custom Shop in Doncaster, England. Road Ready — Rugged 18mm Birch-Ply Construction Band Ready — ’Burned In’ and Tested by our Custom Shop Technicians Touring Ready — World Voltage and Impedance Selectors
Please send us a message here on Reverb if you have any questions about this or any of our products! More details on all our products can also be found on our official website: hiwatt.co.uk (link is on our Reverb profile).
Additional Custom Shop options may be available by request. If you're interested, please message us here on Reverb before placing an order and we'll do our very best to build your ideal Hiwatt.
This item is sold As-Described
This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.
| Condition | Brand New (New) Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more |
|---|---|
| Brand | |
| Model |
|
| Finish |
|
| Categories | |
| Year |
|
| Made In |
|
Product safety information may be available here.



