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Sunn Concert Slave

This product is Vintage or Discontinued

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Page last updated Aug 20, 2025

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Description

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The Sunn Concert Slave is a powerhouse designed for musicians who demand reliability and performance in their live sound setups. Originally introduced in the 1970s, this vintage solid-state amplifier has become a trusted companion for those who need robust power amplification for their gigs. Its straightforward design and rugged construction make it a staple for live performances, ensuring your sound is delivered with clarity and precision.

This amplifier boasts a powerful output that is perfect for driving large speaker systems, providing versatile connectivity for a wide range of audio gear. Whether you're using it as a standalone amp or integrating it into a more complex rig, the Sunn Concert Slave is known for its consistent and clean output, which is crucial for any live sound environment.

Ideal for both seasoned professionals and aspiring musicians, the Concert Slave combines simplicity with reliability. Its intuitive controls make it easy to operate, ensuring that you can focus on your performance without getting bogged down by complicated settings. This power amplifier is a testament to Sunn's legacy of creating enduring audio equipment that stands the test of time.

Key Features:

Vintage solid-state construction
High power output suitable for large speaker systems
Reliable and consistent performance for live settings
Simple and intuitive control interface
Versatile connectivity options for various audio gear
Durable and rugged design for long-lasting use

Videos

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Cosmic Terror

Pt 1.: Butcher by Cosmic Terror comparison Matamp GT120 vs. Sunn Beta Lead Tides Aluminium Guitar

Cosmic Terror

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Sunn Concert Slave.

Setup and maintenance

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Electrolytic caps over 15 years old should be replaced to avoid exponential failure rates, especially for gigging musicians.
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Original filter caps are usually the largest and are located near the power transformer, often connected to filter diodes or a bridge rectifier.
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Each head, such as the Concert Slave, must have at least a 4-ohm load, crucial for proper setup and avoiding equipment damage.
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Mods and upgrades

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When replacing filter caps, ensure new caps have an equal or higher voltage rating for reliable performance.
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Features and functionality

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The Concert Slave's "in" jack is located on the front, often covered but essential for connecting preamp out from the Concert Bass.
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Owners mention that the volume level of the Beta Lead reissue may not meet expectations for some, but the Concert Slave can compensate with its power output.
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Use cases and applications

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The Concert Slave can effectively power a 2x15 cabinet independently, providing flexibility for heavy genres like sludge and doom metal.
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Testing the Concert Slave with a Beta Lead line out has been reported to deliver excellent sound, indicating compatibility for diverse rig configurations.
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User experience

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Owners find the Concert Slave setup straightforward once familiar with jack placement, enhancing heavy music playing experiences.
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Comparisons

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Some users find the power amp from the Concert series preferable to the alpha/beta designs, suggesting a tonal difference beneficial for certain setups.
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Artist usage

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Dave Collins

Singer, Bassist

Bongzilla

Verified via Photo

Dixie's Sunn Concert Slave is seen behind him, stacked with a Sunn Concert Bass and two 2x15" cabs.

Bobby Markos

Bassist

Cloakroom

Verified via YouTube

you cans see in the second 0:30 two sunn bass head

Parker Chandler

Singer, Bassist

Windhand

Verified via Bing

you can see a concert slave on the bottom of his head stack.

Stin

Bassist

Chat Pile

Verified

In [https://www.youtube.com/watch?app=desktop&v=7DyMioj4VjE] at 42:20 stin talk about his home rig being a SUNN COLISEUM SLAVE head (https://reverb.com/item/1999993-sunn-coliseum-slave-power-amplifier - there's no way to upload this unless I was a mod, sorry it's vintage gear ¯_(ツ)_/¯), he talks about how it loves the one volume and the single switch.