Dr. Z Therapy 35-Watt Tube Head – Vintage Tweed Spirit Meets Modern Versatility

Up for sale is a Dr. Z Therapy 35W tube amplifier head. Designed around a cathode-biased, 6L6 power section, the Therapy seamlessly bridges two iconic American sounds: it delivers the glassiness, headroom, and sparkling top-end of a vintage Blackface circuit alongside the warm, woody midrange and dynamic bloom of a classic 5E8-A tweed Twin.

Whether you need pristine, scooped Blackface cleans that serve as a transparent pedal platform or smooth, harmonically rich American overdrive when pushed, this single-channel powerhouse delivers both with effortless dynamic response.


Key Features:

  • Power Output: 35 Watts
  • Tone Profile: Sweeps seamlessly from sparkling Blackface clean tones with tight low-end and glassy highs to rich, singing tweed-style overdrive.
  • Tube Complement: (2) 6L6 STR power tubes, (2) 12AX7 preamp tubes, and a 5AR4 tube rectifier for sweet, natural sag.
  • Post-Phase Inverter Master Volume (PPIMV): Dial in cranked-amp saturation at home or studio levels without sacrificing high-end clarity or feel—no external attenuator needed.
  • Pedalboard Friendly: Non-cascaded front-end ensures overdrive, fuzz, delay, and modulation pedals stay articulate and defined.
  • Premium Build Quality: Hand-wired chassis featuring Jupiter hand-rolled coupling capacitors, a PEC sealed volume pot, and custom transformers.
  • Outputs: 4, 8, and 16-ohm speaker output jacks.
  • Dimensions & Weight: Compact 19" W x 9.75" H x 9.5" D footprint; lightweight at ~30 lbs

smoked-free home/studio environment - power cable included.

Shipments are carefully packed and fully insured. Feel free to message with any questions!

Listeda month ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more
Brand
Model
  • Therapy 35-Watt Guitar Amp Head
Finish
  • Various
Categories
Year
  • 2014
Made In
  • United States
Number of Inputs
  • 1 Input
Power Tube Type
  • 6L6
Built-In Effects
  • No Built-In Effects
Electronics
  • Tube
Reverb
  • None
Number of Channels
  • 1 Channel
Impedance
  • 4 ohms
Output Power (Watts)
  • 35

Product safety information may be available here.

jeff's Gear Outlet

Nordland, WA, United States
Joined Reverb:2025

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