WORKING CONDITION: Very Good - Works great. All of the controls and parameters across each channel of the amp are fully functional. Some of the knobs are a bit scratchy when adjusting, but they settle in after some exercise.  

PHYSICAL CONDITION: Very Good - Exceptional overall condition, especially considering its age.  It looks as good in person as it does in the photos. Small rip in the tolext on the bottom left corner. Not much to point out other than some general signs of light wear here and there.  

INVENTORY #49815

BRAND: Hiwatt 

MODEL: DR504 Custom 50 

FUNCTION: Guitar Amp Head 

PRODUCT DESCRIPTION: This listing is for a 1974 Hiwatt DR504 Custom 50 Tube Guitar Amplifier Head

This 1974 Hiwatt DR504 Custom 50 hails from the golden era of Dave (Dan) Reeves, when Hiwatt amplifiers were built to uncompromising standards that have never been surpassed. Hand-built by the legendary Harry Joyce, the amp features his famously precise, almost “military-grade” hand-wiring—beautifully executed and built for absolute reliability. Inside, you’ll find original Partridge transformers, a cornerstone of the classic Hiwatt sound, and the chassis bears Harry’s purple signature.

Sonically, the DR504 is all about huge headroom, gorgeous, articulate cleans, and remarkable tonal flexibility. It stays bold and clear at volume, responds effortlessly to player dynamics, and takes pedals exceptionally well—making it a truly elite pedal platform. Powerful, refined, and unmistakably British, this is a benchmark amplifier from one of the most respected eras in amp history.

SPECS:

• Serial #13647
• Finish/Color: Black 
• Weight: 42.60 lbs 
• Watts: 50
• Ohms: 4, 8, 16 
• Tube Config: 3x 12AX7, 1x 12AT7, 2x Tesla EL34 
• Effects: Bass, Middle, Treble, Bright

ACCESSORIES INCLUDED: Includes power cord. 

UNPACKAGED WEIGHT: 42.60 lbs.

UNPACKAGED DIMENSIONS: 25" x 11" x 11.25"