4x12 Guitar Speaker Cabinet / 4 12 Speakers
The SA-412 4x12 Guitar Speaker Cabinet delivers the full-stack sound that guitarists depend on for stage performances and studio recording. Built for electric guitarists who need serious projection and tonal depth, this cabinet handles both practice sessions and live gigs with authority.
Four 12-inch speakers work together to produce the wide frequency response and sonic presence that defines the classic guitar cabinet sound. Each driver features a 30oz magnet and 2-inch kapton voice coil, engineered to handle the dynamic range from clean tones to high-gain distortion without breaking up.
The cabinet handles 400 watts RMS and peaks at 800 watts, providing headroom for tube and solid-state guitar heads alike. Wired at 8 ohms with 96 dB sensitivity, it pairs efficiently with most guitar amplifiers. The 45Hz-5000Hz frequency response captures the fundamental frequencies that give electric guitars their character, from the low-end chunk of drop-tuned riffs to the upper-mid presence that cuts through a full band mix.
This cabinet works equally well for rehearsal spaces, club stages, and recording studios. The 96 dB sensitivity means it moves air efficiently, making it suitable for venues up to 200-300 people when paired with a quality guitar head.
Connect using standard 1/4-inch speaker cables through the dual input terminal cup. The cabinet ships ready to play and includes recessed handles for transport.
Seismic Audio backs the SA-412 with a one-year warranty and ships directly to your door, delivering professional guitar cabinet performance at a practical price point.
Technical Specifications
| Spec | Value |
|---|---|
| Power (RMS) | 400 Watts |
| Power (Peak) | 800 Watts |
| Drivers | Four 12" with 30oz magnets, 2" kapton voice coils |
| Frequency Response | 45Hz - 5000Hz |
| Sensitivity | 96 dB |
| Impedance | 8 ohms |
| Inputs | Two 1/4" jacks in terminal cup |
| Cabinet Construction | 5/8" plywood front panel |
| Exterior | Black carpet with black metal corners |
| Grille | Full metal grille |
| Dimensions | 29" H × 29" W × 14" D |
| Weight | 74 lbs |
| Handles | Recessed |
| Warranty | 1 year |
| Recommended For | Electric guitar, stage performance, studio recording |
Frequently Asked Questions
What guitar amplifier heads work best with the SA-412 cabinet?
The SA-412's 8-ohm impedance and 400W RMS power handling make it compatible with most guitar heads from 15 watts to 120 watts. Tube heads like 50W Marshall or Mesa Boogie models pair excellently, while solid-state heads up to 100W also work well. Always match your amp head's impedance output to the cabinet's 8-ohm rating.
How big of a venue can this 4x12 cabinet handle?
With 96 dB sensitivity and 400W RMS power handling, the SA-412 easily covers venues up to 200-300 people when driven by an appropriate guitar head. For larger outdoor festivals or arenas, you'll typically run through the venue's PA system rather than relying solely on stage volume.
What speaker cables do I need to connect this cabinet?
You'll need a standard 1/4-inch speaker cable (not instrument cable) to connect from your guitar amp head to either of the two input jacks on the terminal cup. Speaker cables are thicker and designed to handle the higher current from amplifiers. Cable length depends on your setup, but 6-10 feet works for most stage arrangements.
How does this compare to using a 2x12 cabinet instead?
The 4x12 configuration provides more speaker surface area and air movement than a 2x12, resulting in fuller low-end response and more stage presence. Four speakers also distribute power more evenly, reducing individual driver stress. However, 2x12 cabinets are lighter and more portable if transport is a primary concern.
Does this cabinet need to be paired with a subwoofer?
No, guitar cabinets like the SA-412 are designed to reproduce the full range of electric guitar frequencies without additional subwoofers. The four 12-inch drivers and 45Hz-5000Hz response handle everything from low B notes on 7-string guitars to the upper harmonics that define your tone. Subwoofers are typically used with full-range PA systems, not guitar rigs.
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