Ampeg PF-20T Bass Head
Brand New. Authorized Dealer
Pure All-Tube Warmth in a Compact Design: Ampeg PF-20T Portaflex
The Ampeg PF-20T delivers authentic, rich all-tube tone in an ultra-portable footprint. Rated at 20 Watts, this compact Portaflex Series amplifier head is engineered for home studios, professional recording sessions, and intimate live performances. Paired with cabinets like the Ampeg PF-112HLF, it yields a highly versatile, vintage-styled all-tube bass rig.
All-Tube Circuitry and Organic Tone Shaping
The signal path of the PF-20T harnesses a classic vacuum tube complement engineered for warmth and touch sensitivity:
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Preamp Stage: Driven by two 12AX7 tubes for thick, articulate midrange and smooth harmonic saturation.
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Power Section: Powered by two 6V6 power tubes, delivering vintage-style output compression and full-bodied response.
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Tone Controls: Straightforward 3-band EQ (Bass, Mid, Treble) paired with Gain and Master Volume controls for intuitive sound sculpting.
No-Load Operation and Advanced Direct Outputs
A key highlight of the Ampeg PF-20T is its capability to operate safely without a speaker load connected. This converts the head into a standalone premium tube preamp and direct injection (DI) box for silent recording.
Routing features include:
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Balanced XLR Preamp Out: Equipped with selectable Pre/Post EQ routing and a Ground Lift switch.
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Balanced XLR Transformer Out: Captures the full sonic signature of the 6V6 power tubes directly from the output transformer.
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User-Adjustable BIAS Controls: Rear-panel bias controls allow easy tube monitoring and user calibration.
Ampeg PF-20T Specifications
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Device Type: All-Tube Bass Amplifier Head
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Series: Portaflex Series
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Power Output: 20 Watts RMS
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Preamp Tubes: 2 x 12AX7
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Power Tubes: 2 x 6V6
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Controls: Gain, Master Volume, Bass, Mid, Treble
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Equalizer: 3-Band EQ
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Outputs: Balanced XLR Preamp Out, Balanced XLR Transformer Out
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Routing Switches: Pre/Post EQ (Preamp Out), Ground Lift (Preamp Out & Transformer Out)
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Maintenance Features: User-Adjustable BIAS Controls
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No-Load Operation: Supported (safe operation without a speaker connected)
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Dimensions: 185 x 330 x 264 mm
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Weight: 6.9 kg
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Country of Origin: China
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Warranty: 12 Months (+ 12 months free service maintenance; 3 months on vacuum tubes)
Review of Ampeg PF-20T Bass Head📍 All amplifiers marked “In Ukraine” are located in our shop in Dnipro, Ukraine.
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