Pricing and availability
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Store
Reviews
Price
Average Price: $850
High-end/Boutique
$200
$801+
Price Tier
Budget
Standard
High-end
Price History
Based on price data from 3 merchants for "Ampeg PF-20T Bass Head". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Unleash the classic, all-rounded bass tones with the Ampeg PF-20T Bass Head, a compact and powerful amplifier that brings the renowned warm tube sound to your fingertips. Weighing only 15 lbs., the PF-20T epitomizes portability and performance, making it your perfect companion for rehearsals, small gigs, and recording sessions.
Driven by a set of 12AX7 and 6V6 tubes, this bass head delivers warm, harmonically rich tones that have become synonymous with Ampeg's vintage collection. But that's not all. Crank up the volume and witness the PF-20T transform into a growling beast, releasing an overdriven tube growl that is sure to captivate your audience.
Its smaller footprint not only makes transportation a breeze, but it also sits elegantly on a recording desk or attaches seamlessly to current Ampeg Flip-top cabinets. The black metal casing and glowing tubes ensure it looks as good as it sounds.
Key Features:
- 20-watt tube bass amplifier head suitable for small performances or recordings
- Driven by 6V6 and 12AX7 tubes for classic Ampeg tone
- Compact and lightweight design for easy transportation
- Compatible with current Ampeg Flip-top cabinets
- Direct recording features with preamp out (with pre/post EQ switch) and transformer-balanced line-out
- User adjustable bias control for personalized sound shaping
- 3-band EQ for precise tonal adjustments
Product specs
| Type | Tube |
| Number of Channels | 1 |
| Output Power | 20 Watts |
| EQ | 3-band |
| Preamp Tubes | 2 x 12AX7 |
| Power Tubes | 2 x 6V6 |
| Inputs | 1 x 1/4" |
| Outputs | 1 x 1/4" (speaker), 2 x XLR (preamp, balanced line) |
| Power Source | Standard IEC AC cable |
| Height | 10.4" |
| Width | 13" |
| Depth | 7.3" |
| Weight | 15.2 lbs. |
FAQs
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What type of tubes does the Ampeg PF-20T Bass Head use?
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The Ampeg PF-20T Bass Head features two 12AX7 preamp tubes and two 6V6 power tubes, providing a classic all-tube tone.
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Is the Ampeg PF-20T Bass Head powerful enough for live performances?
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With its 20-watt output, the Ampeg PF-20T is best suited for studio recording or small venue gigs, as it may not provide enough volume for larger live performances without additional amplification.
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Can the Ampeg PF-20T Bass Head be used with different speaker impedances?
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Yes, the Ampeg PF-20T supports 4 and 8 ohm speaker impedances, offering flexibility in pairing with various speaker cabinets.
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Does the Ampeg PF-20T Bass Head have a direct output for recording?
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Yes, the Ampeg PF-20T includes two XLR direct outputs, allowing for easy connection to recording equipment or a PA system.
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What is the weight and size of the Ampeg PF-20T Bass Head?
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The Ampeg PF-20T weighs 15.2 lbs and measures 13" in width, 10.4" in height, and 7.3" in depth, making it compact and portable.
Videos
Ampeg
Ampeg PF-20T All-Tube Bass Head - Sound Clips (Fingerstyle)
Ampeg PF-20T All-Tube Bass Head - Sound Clips (Fingerstyle)
Ampeg
Guitar through Ampeg PF-20T Bass Amp Head - Demo Review #4
That Dam Fly
Ampeg PF-20T All-Tube Bass Head - Sound Clips (Overdriven w/ Pick)
Ampeg
Ampeg Artist - Jerry Jemmott On The Portaflex PF-20T
Ampeg
Strings Quick Demo : Ampeg PF-20T Head Amp
Strings Shop
Ampeg PF20T test (funk)
Nino Djuras
Reviews
PROS
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Classic Ampeg sound, replicating the vintage B-15 tone
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Versatile connectivity options including mic, direct out, and transformer DI outputs
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Ideal for studio use with clear, tube-driven sound quality
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Pre-EQ and post-EQ output options for tailored sound recording
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Solid, durable construction
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Low noise floor, enhancing recording quality
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Can double as a tube guitar amp, offering versatility
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Simple tone stack, easy to dial in sounds
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Provides significant volume and thump despite its 20-watt power
CONS
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Not suitable for live gig use as per user experience
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Limited power may not meet all performance needs without external amplification
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Ampeg PF-20T Bass Head.
Use cases and applications
Features and functionality
User experience
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Some owners find that low-wattage tube amps, like the PF-20T, maintain sound quality even at low volumes, unlike many practice amps.
Source
Comparisons
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The PF-20T is considered a better value for home, practice, and DI use compared to the PF-50T, which some find overpriced for similar sound quality.
Source
Critic Reviews
5.0 out of 5
Based on 1 Review and 2 Ratings
7007
Ampeg: THE Sound of Electric Bass
While I have zero first-hand experience with the vaunted Ampeg B-15, it has been reported that the PF-20T is about as close as one can get without spending big money on a vintage head. So when a complete Portaflex rig came up on FB for the astoundingly low amount of $400, I had to buy it.
Wow! I am so glad that I did. I've never owned a Valve bass amp before, and I'm completely stunned by this one.
This IS the sound we've heard on hundreds of recordings. This is amazing!
There was a bit of low-frequency buzz, so I replaced the OEM Ruby tubes with JJs, and that fixed the problem.
This head is perfect. Totally, completely, and absolutely perfect.
Artist usage
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Genre Usage
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Used With
Based on how musicians on Equipboard use Ampeg PF-20T Bass Head, it is most commonly used with the following gear.
Community setups
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