Ampeg SVT-III Pro

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$500.00 to $1,499.99 Price Tier: High-end

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Page last updated Jun 12, 2026

Pricing and availability

We compare 600+ stores and found this item at 3 stores. Prices updated May 28, 2026.

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5.0 (14)

$1,499.99

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4.8 (6)

$1,249.99

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$500.00 3 available Used

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Average Price: $1,083

High-end/Boutique

$200

$801+

Price Tier

In the Bass Amplifier Heads category, Ampeg SVT-III Pro 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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Standard

High-end

Price History

Based on price data from 2 merchants for "Ampeg SVT-III Pro". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Discover the power and versatility of the Ampeg SVT-III Pro, a bass amplifier head that marries vintage tone with modern adaptability. This robust amp head boasts a 450-watt tube preamp that channels the legendary Ampeg sound, making it a go-to choice for bassists who crave rich, deep tones. At its core, the SVT-III Pro features an array of tubes, including three 12AX7s in the preamp stage, with an additional 12AX7 and a 12AU7 for enhanced drive capabilities. This setup not only delivers warm, harmonically rich sounds but also offers considerable flexibility and control over your tone.

The SVT-III Pro's standout feature is its frequency control, which allows bassists to define their midrange voice by selecting from five distinct frequencies: 220Hz, 450Hz, 800Hz, 1.6kHz, and 3kHz. Whether you're laying down the groove or stepping forward for a solo, the 9-band graphic EQ lets you sculpt your sound with precision, even allowing for a footswitchable second channel for performance versatility. With both 1/4" and Neutrik speakON outputs, and thoughtful additions like a mute switch, tuner out, and input peak LED, the Ampeg SVT-III Pro is a comprehensive tool for any serious bass player.

Key Features:

450-watt tube preamp with a solid-state power amp
Three 12AX7 preamp tubes; one 12AX7 and one 12AU7 driver tubes
5-position midrange frequency control
9-band graphic EQ for sound tailoring
1/4" and Neutrik speakON outputs
Input peak LED and mute switch
Tuner out and input pad with a bright switch

Product specs

Brand	Ampeg
Model	SVT III Pro 450-Watt Hybrid Rackmount Bass Amp Head
Finish	Black
Year	1990s
Made In	United States
Categories	Bass Heads
Color Family	Black
Electronics	Solid State
Impedance	4 ohms, 8 ohms
Number of Channels	1 Channel
Number of Inputs	1 Input
Output Power (Watts)	450
Power Tube Type	None
Reverb	None

FAQs

What type of preamp and power section does the Ampeg SVT-III Pro have?: The Ampeg SVT-III Pro features a tube preamp combined with a solid-state power section, offering a blend of warm tube tone and reliable solid-state performance.
Is the Ampeg SVT-III Pro suitable for live performances?: Yes, the Ampeg SVT-III Pro is well-suited for live performances with its 450-watt output, providing ample power for medium to large venues.
How does the Ampeg SVT-III Pro handle different speaker impedances?: The Ampeg SVT-III Pro is designed to work with 4-ohm and 8-ohm speaker cabinets, offering flexibility in pairing with various bass setups.
Does the Ampeg SVT-III Pro have any built-in reverb features?: No, the Ampeg SVT-III Pro does not include built-in reverb, focusing instead on delivering a pure bass tone with its hybrid design.
What kind of tonal control does the Ampeg SVT-III Pro offer?: The SVT-III Pro features a Frequency control that allows you to select the center frequency for the Midrange control, providing five distinct tonal "voices" for enhanced versatility.

Videos

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AmpsOnAir

review - Ampeg SVT-3 PRO & MXR bass d.i.+ @ ampsonair.com

AmpsOnAir

Ampeg SVT-3 Pro demo

Mateusz Piotrowski

Ampeg SVT-3 Pro: My experience and what you need to know

Christian Ripper

Ampeg SVT III Pro, Kramer The Duke Bass ebay video

IplayMusic2

Ampeg SVT-3 Pro Bass Amp-In Depth Review & Demo

Stu Studio

Ampeg SVT3 PRO - Working, But Not Well

Brad's Guitar Garage

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Ampeg SVT-III Pro.

Setup and maintenance

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The output transistors' bias voltage may drift over time, affecting volume. Owners suggest re-biasing with a multimeter as a simple fix.
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A common issue is signal distortion or dropout when the amp is set clean; testing with a patch cable in the effects loop can help diagnose the problem.
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Features and functionality

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The tube gain knob, controlling tube plate voltage, is counterintuitive; maximum tube compression/crunch is achieved by turning it counterclockwise.
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The SVT-III Pro’s dual clipping feature is highlighted for adding desired dirt and character to the tone, contrasting with the ultra-clean sound of the LH1000.
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User experience

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Despite being described as solid workhorses, these amps are notably heavy, which could impact portability.
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Owners report the SVT-III Pro can survive significant physical impacts, such as falls from stage heights, without immediate functional issues.
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Owners appreciate the peak light indicator, which signals optimal performance when flashing during use.
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A recording engineer recommends using a mic and two DI channels with high and low pass filters at 80Hz for enhanced recording results with this amp.
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One owner has relied on their SVT-III Pro for over 23 years, citing consistent delivery and durability despite having tried other amps.
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Comparisons

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Users favor the SVT-III Pro over the Hartke LH1000 for its growl and versatility, especially in jazz, post-punk, and krautrock genres.
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The SVT-III Pro is often preferred in studio settings over the SVT Classic and Orange AD200 for its versatile tone and reliability.
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Use cases and applications

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The SVT-III Pro is described as having a "huge" sound when paired with an Ampeg 410 and 115 cabinet setup, offering a notable tonal presence.
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Several users report consistently receiving compliments on tone when pairing the SVT-III Pro with an Ampeg 410 HLF cabinet.
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Mods and upgrades

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Replacing the SVT-III Pro's five preamp tubes with premium options has been noted to enhance performance, though it's not deemed necessary by all users.
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Value and pricing

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Some users have found significant deals on the SVT-III Pro, with one purchasing it for $400 at a pawn shop, indicating potential for great value buys.
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Artist usage

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Graham Lewis

Singer, Bassist

Wire

Verified via Photo

In this image from a 2013 live performance by Wire, we see Lewis performing in front of his SVT-III Pro bass stack.

Tony Lombardo

Bassist

Descendents

Verified via YouTube

In an interview on "Stephan's Punk Show" conducted by Justin Carl, Tony Lombardo confirms at the 7:38 mark that he uses the "SVT Pro III head with a classic 810 cab." This setup has been observed in numerous live performances.