Pair of SEISMIC AUDIO 4x8 Bass Guitar Speaker Cabinets 300 Watts Each NEW

These SA-4x8 cabinets hit that sweet spot between portability and punch that bass players are always chasing. You get a pair of compact 4x8 cabs that stack nice and tight, each putting out 350 watts RMS through four 8-inch drivers. The real kicker is that super tweeter with the 3,500Hz crossover — it gives you actual high-frequency attack that cuts through when the guitar player cranks up and the drummer starts hitting harder.

The 8-ohm impedance per cab means you can run them together for a 4-ohm load, or use one at a time when you're playing smaller rooms. At 60 pounds each with recessed handles, they're manageable for one-person load-ins, and the 22" square footprint stacks cleanly in most vehicles. The ported design keeps the low end tight while the 60Hz-20kHz response covers everything from drop-tuned metal to slap funk without sounding muddy.

These aren't going to move air like a big 4x10 or 8x10 rig, but for clubs, churches, and rehearsal spaces up to 150 people, they deliver professional bass tone without the back-breaking weight. The dual 1/4-inch inputs on each cab make daisy-chaining simple, and you can bi-amp if your head supports it.

Bottom line: If you need bass tone that travels light but still has presence and definition, this pair gives you modular flexibility and genuine gigging power at a price that won't drain your gear fund.

Technical Specifications

• Power (RMS): 350 watts per cabinet
• Power (Peak): 700 watts per cabinet
• Woofer: Four 8-inch drivers with 20 oz magnets
• HF Driver: 1-inch super tweeter
• Frequency Response: 60Hz - 20kHz
• Sensitivity: 97dB
• Impedance: 8 ohms per cabinet
• Crossover: 3,500Hz at 12dB/octave
• Voice Coils: 1.5-inch Kapton
• Inputs: Two 1/4-inch inputs per cabinet
• Cabinet: 5/8-inch plywood front panel, ported design
• Finish: Black carpet with black metal corners
• Dimensions (HxWxD): 22" x 22" x 16" per cabinet
• Weight: 60 lbs per cabinet
• What's in Box: Two SA-4x8 bass speaker cabinets

Frequently Asked Questions

Can I use just one cabinet or do I need both?

You can definitely run just one SA-4x8 for smaller gigs, practice, or recording. Each cabinet handles 350 watts RMS at 8 ohms, which works with most bass heads. Running both together drops you to 4 ohms total and doubles your volume and power handling.

What size venues work best with this pair?

These handle venues up to about 150 people effectively — think clubs, small churches, rehearsal spaces, modest outdoor gigs. Beyond 200 people, you'll want more cabinet or a subwoofer to keep up with the room.

How does the sound compare to 4x10 or 1x15 cabinets?

You get tighter, more focused low-end than most 1x15s with better portability than 4x10 rigs. The four 8-inch drivers deliver punchy mids and defined bass response, plus that super tweeter adds high-frequency clarity that traditional bass cabs often miss.

Do these need a subwoofer for full bass response?

The SA-4x8s reach down to 60Hz, covering most fundamental bass frequencies without help. If you're playing hip-hop, electronic music, or very large rooms where you need that extended sub-bass, adding a sub helps, but these deliver solid bass response on their own.