For sale is a beautiful piece of Los Angeles audio history: a 1954 Berlant Concertone 20/20 (Series 30) Recording Amplifier.

Manufactured on West Jefferson Blvd in LA during the mid-50s, these units were built to the highest professional standards of the era. They are famous today for their "overbuilt" transformers and are highly sought after by boutique builders for conversion into standalone high-gain tube microphone preamps.

Features:

• Aesthetic: Massive, iconic Berlant VU meter (untested, glass is clear).

• Controls: Dedicated Mic, Line, and Output knobs with original vintage bakelite-style pointers.

• Internals: Original transformer-balanced circuitry.

Condition Report:

This unit is being sold as Non-Functioning / Untested. It is a "time capsule" piece that has not been powered on to ensure the safety of the vintage transformers. There is minor cosmetic rack wear and patina consistent with its 70-year age, but the faceplate presents very well.

Terms:

Sold strictly As-Is for parts, repair, or restoration. This is a perfect candidate for a high-end preamp project.


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Listed5 months ago
ConditionNon Functioning (Used)
Non-functioning items do not work as they should. All known issues should be described in the listing description.Learn more
Brand
Model
  • Concertone 20/20 Recording Amplifier (Model TWA)
Categories
Year
  • 1954-1958
Made In
  • United States

Product safety information may be available here.

Vintage A/V LA

Playa Del Rey, CA, United States
Joined Reverb:2026

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