Traynor Mono Block B

5.0 (1)

1 Review

Find out who is using Traynor Mono Block B

1 wishlisted

3 saved

Page last updated Apr 01, 2026

Pricing and availability

Store

Reviews

Price

^* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Edit description

1973 Traynor Mono Bloc-b (Beavertone) Solid State Bass Amplifier 2Ω 325W dual inputs, volume, bass, low mid, high mid, treble, and master volume controls preamp out and power amp in jacks. Case is cast aluminium with 3/16" bottom plate acting as a heat sink. Matching speaker Cabinets - Yorkville YCV-215 4Ω 400W RMS 2x15" - YC-188 1x18" and 2x8" speakers

Reviews

Add review

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Traynor Mono Block B.

Setup and maintenance

0 0

A disconnected ground prong can lead to dangerous shocks; ensure the ground wire is securely attached to the prong for safety.
Source
0 0

Using DeoxIT D5 spray effectively resolves crackling in the pots, enhancing performance.
Source
0 0

Replacing old capacitors can significantly improve sound clarity and volume, transforming the amp's output quality.
Source

Features and functionality

0 0

The Traynor Monoblock B may have a ground switch originally intended for polarity change in two-prong setups, which should be disabled in modern three-prong conversions.
Source

User experience

0 0

Owners report that improper grounding can lead to severe shocks when touching the instrument and amplifier simultaneously.
Source
0 0

The amp operates efficiently with two 8-ohm cabs in parallel, continuing to perform well despite one speaker failure after 20 years.
Source

Other

0 0

Older amps with metal chassis and switches can deliver shocks if the ground switch is moved from a safe position, especially in two-prong models.
Source

Use cases and applications

0 0

It's advised to have vintage tube amps inspected by professionals, particularly if modifications have been made to their power cords or grounding systems.
Source
0 0

Functionality remains consistent even when using a 6x12 cabinet, though speaker configuration adjustments may be necessary.
Source

Mods and upgrades

0 0

Switching to modern capacitors and rebuilding the front can revitalize the amp, eliminating issues like rust and patina.
Source

Add review

5.0 out of 5

Based on 1 Review and 1 Rating

5 star

4 star

3 star

2 star

1 star

yarns

over 1 year ago

Thunderous Power

I've had at least 50% of gigs where I used the mono bloc-b where the sound guy would either turn me down or constantly cry and try to get my attention to turn it down. Does not need to be plugged into a PA for most smaller venues. Runs all night, i had it into a 2Ω load (2x 4Ω 500W speakers in parallel) outdoors and that was the only time i noticed it getting hot but that was open air and i had it kranked. Otherwise it's >50 years old and still going.

Roles:

Singer Guitarist Bassist

Genres:

Rock Blues Metal

Artist usage

Add artist

Bruce Thomas

Bassist, Music Producer

Elvis Costello & The Attractions

Verified via Guitar World

Bruce Thomas has confirmed his use of the Traynor Mono Block B amplifier in an interview with Guitar World, stating, "I had a Traynor Mono Block too, but the amp I used most was the Ampeg SVT. I had Johnny Winter's old guitar amp as well: they sounded great with a bass." This statement was reported by Nick Wells in the article titled “Some bass parts are functional and some are creative: you don’t need to play Rachmaninoff when the band wants Al Green”: The man behind Elvis Costello’s finest albums recalls his life as a main Attraction, published by Guitar World.