The SA-4x8 is that cabinet you reach for when you need real bass sound but don't want to throw out your back loading in. Four 8-inch drivers with decent 20oz magnets and Kapton voice coils give you punch without the massive footprint of a 4x10. The integrated 1-inch tweeter with a 3,500Hz crossover means your slap lines and harmonics won't disappear into the mix — something a lot of budget cabs ignore completely.

At 60 pounds and 22" square, this thing actually fits in most cars and won't dominate tiny stages. The 8-ohm load works with pretty much any bass head you've got, and 350 watts RMS with 97dB sensitivity means you're getting decent volume without needing massive power. It's not going to shake the foundation like a big 15 or move the air of a proper 4x10, but for club gigs, rehearsals, and medium venues, it does the job without the logistics nightmare.

The build is what you'd expect at this price point — carpet covering with metal corners, dual quarter-inch inputs, and a 5/8-inch plywood front panel. It's not boutique construction, but it's not going to fall apart on you either. The frequency response hits 60Hz to 20kHz, which covers your bass fundamentals and enough top end to hear what your fingers are actually doing.

This cabinet makes sense for bassists who gig regularly in smaller venues, need something portable for fly dates, or want a decent practice/rehearsal rig without the storage headaches. It's not trying to be a stadium cab — it's trying to be reliable, portable, and loud enough for real-world situations.

Bottom line: If you need bass cabinet sound in a manageable package for small-to-medium venues and don't want to deal with massive, heavy gear, the SA-4x8 delivers without breaking your back or your budget.

Technical Specifications

  • Power (RMS): 350 Watts
  • Power (Peak): 700 Watts
  • Drivers: Four 8" with 20oz magnets, 1.5" Kapton voice coils
  • HF Driver: 1" super tweeter
  • Frequency Response: 60Hz - 20kHz
  • Sensitivity: 97dB
  • Impedance: 8 ohms
  • Crossover: 3,500Hz, 12dB/octave
  • Inputs: Dual 1/4" jacks
  • Cabinet: 5/8" plywood front panel, black carpet
  • Dimensions: 22" x 22" x 16"
  • Weight: 60 lbs
  • Warranty: One year
  • Recommended For: Portable bass rigs, club gigs, rehearsal spaces

Frequently Asked Questions

Will this cabinet handle my bass head's full power?

At 350 watts RMS, the SA-4x8 works with most bass heads up to that power rating. If you're running a 500+ watt head, you won't hurt the cabinet as long as you're not cranking it into clipping. The 8-ohm impedance means most heads will deliver their full rated power, and you can add a second 8-ohm cab to drop to 4 ohms if your amp supports it.

How does this compare to a traditional 4x10 cabinet?

The 4x8 gives you tighter, more controlled low-end than most 4x10s because the smaller drivers are quicker to respond. You get better definition but less overall air movement — it won't thump your chest like big 10s will. The built-in tweeter adds clarity that many 4x10s lack. Think focused punch vs. massive boom.

What venues can this actually handle?

This works great for clubs, rehearsal spaces, and indoor venues up to about 200 people. With 97dB sensitivity, you're getting decent volume without massive power requirements. For bigger outdoor gigs or rooms over 300 people, you'll want to pair it with another cab or look at larger options.

Do I need special cables or connections?

Just standard 1/4-inch speaker cables — never use instrument cables. The dual inputs are wired in parallel, so you can daisy-chain to additional cabinets if needed. Make sure you're using proper speaker cable rated for your amp's output power.

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ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
Brand
Model
  • SA-4x8 4x8" 300w Bass Speaker Cabinet
Finish
  • Black
Categories
Year
  • 2015
Speaker Configuration
  • 4x8"
Color Family
  • Black
Impedance
  • 8 ohms
Power Handling (Watts)
  • 300

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Seismic Audio Speakers

Memphis, TN, United States
Joined Reverb:2014

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