The legendary Hiwatt preamp circuit and tonestack found in the DR103/504 feeding a 20W (switchable to 0.5W) output section offers classic Hiwatt Headroom, clarity, instantaneous response, sonic depth, and detail, with breakup at recording and club volumes (switch to 0.5W in the greenroom).

Iconic 60s British tone in a lightweight and portable package.
FEATURE OVERVIEW

• — Original linked input circuit as famously modded for Pink Floyd, increasing signal to the V1 preamp valve and producing a fuller, more present and forward sound.


• — Optional "Fat Switch" mod for a fuller tone with extended low-end range and increased volume.


• — Normal and Brilliant channels. Versatile and intuitive, perfect for bringing life out of dark pickups or taming shrill high end in bright pickups.


• — Volume for any gig — Switchable wattage allows switching from 20W down to 0.5W for bedroom playing and smaller venues.

Specs
wattage: Switchable — 20W or 0.5W
channels: Normal, Brilliant
inputs:
Normal
Brilliant
Linked
output: 2 x 1/4" Speaker Out
preamp valves: 4 x ECC83 (12AX7)
output valves: 2 x EL84
controls:
Normal Volume
Brilliant 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
impedance: Switchable using Variable Impedance Outputs on the rear panel — 4 Ω, 8 Ω, or 16 Ω
height: 210mm (~9")
width: 497mm (~20")
depth: 250mm (~10")
weight: 9.6 Kg (~22 lbs)
Road Ready — Rugged 18mm Birch-Ply Construction
Band Ready — ’Soak Tested’ by our Custom Shop Technicians
Touring Ready — World Impedance Inputs
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 the Hiwatt Custom Shops.