Peavey MAX 158 - Solid-State Bass Combo Amplifier

The Peavey MAX is a single-channel solid-state bass combo amp ideal for home practice. 20W output. 1x 8" speaker, TransTube simulation technology, Modern/Vintage voicing, vintage valve-style tone simulation, passive 3-band EQ, CD/MP3 input, headphone output.

PEAVEY MAX 158 - Solid-State Bass Combo Amplifier

The Peavey MAX 158 is a compact bass combo amplifier designed for home practice and everyday playing. Thanks to its small footprint and low weight it’s easy to move around, yet it delivers impressive sound pressure and solid low end, helped by Peavey’s HyperVent technology. Although it features an 8-inch speaker and 20 watts of power, once you plug in it can feel like a much bigger, louder rig.

Key features

• 20W solid-state bass combo with punchy, full low end
• 1x 8" speaker in a compact cabinet
• TransTube-style amp simulation for a more “valve-like” response
• Modern/Vintage voicing options for quick tone shaping
• TT Boost and PsychoAcoustics switches for enhanced tone character
• Passive 3-band EQ (Low/Mid/High)
• Aux input for CD/MP3 backing tracks
• Headphone output for silent practice

Who is it for / best uses

The MAX 158 is ideal for beginners, students, and gigging players who need a reliable practice amp with a convincing bass tone at sensible volume levels. It suits a wide range of styles—from rock and pop to funk and blues—thanks to its flexible voicing and straightforward EQ.

Controls & connections

The front panel keeps things simple and practical: after the bass input you’ll find Gain, TT Boost and PsychoAcoustics switches for shaping the tone, plus a 3-band EQ with Low, Mid and High controls. The remaining essentials are an Aux-In for external audio sources and a headphone output for quiet practice.

Specifications

• Power: 20 W
• Speaker: 1x 8"
• Controls: Volume, Bass, Middle, Treble, TT Boost, PsychoAcoustics
• Limiter: No
• Compressor: No
• External speaker output: No
• DI output: No
• Effects loop: No
• Headphone output: Yes
• MP3/line input: Yes
• Battery operation: No
• Bluetooth: No
• Built-in tuner: Yes
• Adjustable horn: No
• Weight: 8.3 kg