This is a vintage Guild Thunderbass amplifier head from the 1960s. A classic, powerful Guild head known for strong low end and warm vintage tone, suitable for bass or clean electric guitar applications.

The amp is in good condition for a vintage piece, with cosmetic wear consistent with age as shown in photos. The handle is pretty worn. The amp functions as it should, but it needs a grounded (3-prong) power plug to be installed for modern safety standards.

Basics & Specs:

  • Model: Thunderbass
  • Era: 1960s
  • Type: Tube amplifier head
  • Channels: 2
  • Finish: Black
  • Controls: Independent volume and tone controls per channel
  • Includes: Head only (no cabinet, no footswitch)

Tulsa Guitar Company is a brick and mortar shop based in Oklahoma since 1985. We are a Top 300 shop on Reverb (2023 & 2024). Thank you for supporting a family-owned business. We ship most items the same day they are purchased during our regular business hours.

Reverb Buyer Protection

Reverb has your back if your item is lost, damaged, or doesn't match its description. Simply report any issues within 7 days and we'll help you get a full refund.Learn more about Reverb Buyer Protection.

Listed7 months ago
ConditionGood (Used)
Good condition items function properly but may exhibit some wear and tear.Learn more
Brand
Model
  • Thunderbass Head
Finish
  • Black
Categories
Year
  • 1960s
Made In
  • United States
Power Tube Type
  • 6L6
Number of Channels
  • 2 Channels
Electronics
  • Tube
Direct Output
  • No Direct Output
Number of Inputs
  • 4 Inputs
Reverb
  • None
Color Family
  • Black
Impedance
  • 8 ohms
  • 4 ohms
Output Power (Watts)
  • 45

Product safety information may be available here.

Tulsa Guitar Co.

Tulsa, OK, United States
Joined Reverb:2014

Reverb Protection

Simple Returns, Secure Transactions, Human Support

Learn more

Secure Checkout

Promoted similar listings













Product reviews

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Oops, looks like you forgot something. Please check the fields highlighted in red.