Sunn 1200S Amplifier Head

$900.00 Price Tier: High-end

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Page last updated Jun 22, 2026

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We compare 600+ stores and found this item at 1 store. Prices updated June 22, 2026.

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5.0 (3)

$900.00 5 available Used

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Average Price: $900

High-end/Boutique

$200

$801+

Price Tier

In the Bass Amplifier Heads category, Sunn 1200S Amplifier Head is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

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High-end

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Description

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Elevate your bass tones with the classic Sunn 1200S Amplifier Head, a testament to the golden era of rock and roll. Crafted during the late 1960s to mid-1970s, this amplifier head delivers a rich, analog warmth that modern amps strive to emulate. Its 120 watts of power, driven by eight tubes, offer an authentic sonic experience, perfect for musicians seeking a vintage sound with modern reliability. With two inputs and a single channel that includes reverb and vibrato, the Sunn 1200S stands out as a piece of musical history ready to take on the stages and studios of today.

Key Features:

120 watts of power for full, rich bass tones
Eight tubes deliver authentic analog warmth
Single channel with two inputs
Includes reverb and vibrato for added depth and texture
A piece of musical history with modern reliability

Product specs

Brand	Sunn
Model	1200S Head
Finish	Black
Year	1970s
Made In	United States
Categories	Guitar Heads
Built-In Effects	Built-In Effects
Color Family	Black
Direct Output	No Direct Output
Effects Loop	No Effects Loop
Electronics	Tube
Impedance	2 ohms
Number of Channels	1 Channel
Number of Inputs	4 Inputs
Output Power (Watts)	1200
Power Tube Type	6550
Reverb	Spring Reverb

FAQs

What kind of tubes does the Sunn 1200S Amplifier Head use?: The Sunn 1200S Amplifier Head uses 6550 power tubes, known for their robust power output and reliability, making it suitable for high-volume performances.
Is the Sunn 1200S suitable for bass guitar?: Yes, the Sunn 1200S is a bass amplifier head designed to deliver powerful, clear tones, making it ideal for bass guitar applications.
Does the Sunn 1200S Amplifier Head have built-in effects?: Yes, the Sunn 1200S features built-in spring reverb, adding depth and dimension to your sound without the need for external effects.
How many inputs does the Sunn 1200S Amplifier Head have?: The Sunn 1200S Amplifier Head includes four inputs, providing flexibility for connecting multiple instruments or signal sources.
What is the impedance of the Sunn 1200S Amplifier Head?: The Sunn 1200S Amplifier Head has an impedance of 2 ohms, which is crucial for matching with compatible speaker cabinets for optimal performance.

Videos

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I Like Old Stuff

Sounds Sick Episode 17: Fender Bassman 1200 Pro / Sunn 1200 S

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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 1200S Amplifier Head.

Setup and maintenance

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The amplifier may require new capacitors in addition to tubes, with a tech quoting $300 for full servicing.
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Value and pricing

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For non-functioning units, value is primarily in chassis and parts, worth only a couple hundred dollars unless fully restored.
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A functioning Sunn 1200S can reach $1,100 on the market; subtract retube kit costs for broken units to estimate worth.
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A second-hand Sunn 1200S in good condition can be found for around $700, making it a powerful and cost-effective choice for bassists.
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User experience

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Some tubes glow upon power up, indicating partial functionality, but full testing is needed to confirm operational status.
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Owners value the Sunn 1200S's reliability and tonal quality, frequently choosing it over other heads like the Ampeg SVT 200T for its unique sound profile.
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Some users report that 15" speakers, while not universally loved, can offer a unique tonal quality when paired correctly, such as with a 2x15 setup.
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Features and functionality

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The Sunn 1200S has four separate speaker inputs, allowing you to fully utilize its 1200W power capacity with multiple cabinet configurations.
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The Sunn 300T and 1200S combined with both 4x10 and 2x15 cabs provide versatile rig options, catering to both clean and overdriven sound preferences.
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Comparisons

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The Sunn 1200S can emulate the Ampeg tone effectively when paired with a Tech21 VT Sansamp pedal, offering versatility in sound options without needing an Ampeg head.
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The Sunn 1200S is often favored for its powerful bass performance over the 300T, which some suggest is more suited for guitar due to its easier breakup.
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Use cases and applications

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Ideal for stone rock projects, the Sunn 1200S is powerful enough to drive a 2x15" Peavey Black Widow cabinet, delivering approximately 800W of output.
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Owners frequently pair the Sunn 1200S with a 2x15" Peavey cab for a deep, clean tone, while using an A/B box to integrate the 300T for overdrive.
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Build quality

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The Sunn 1200S is a 2U rack-mounted unit, which can be paired with additional rack components like a power conditioner for enhanced protection during gigs.
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Stephen O'Malley

Guitarist

Sunn O)))

Verified via Guitar.com | All Things Guitar

In the guitar.com's interview with Stephen O'Malley, a list of O'Malley's guitar rig was published. One of the items included on the list was Sunn 1200S.