The SA-115-USA bass guitar cabinet delivers focused low-end punch with the option to show your patriotic pride through its interchangeable USA flag grille. This dual-ported 1×15 cabinet targets bass players who need reliable stage monitoring or smaller venue performance without sacrificing tone quality.
The cabinet handles 300 watts RMS and peaks at 600 watts, providing substantial headroom for everything from practice sessions to club gigs. The custom 15-inch driver features a 50-ounce magnet and 2.5-inch Kapton voice coil, delivering tight bass response from 40Hz to 5kHz with 96dB sensitivity at 8-ohm impedance.
Built with a 5/8-inch plywood front panel and dual ports positioned in the center, this cabinet emphasizes both durability and acoustic performance. The black carpet covering with metal corners protects against transport wear, while the recessed handle makes loading easier. Two interchangeable metal grilles let you switch between classic black or the distinctive USA flag design depending on your venue or mood.
This cabinet works well for smaller venues up to 200 people or pairs effectively with 2×10 or 4×10 cabinets for larger stages. The dual 1/4-inch inputs on the terminal cup allow daisy-chaining to additional cabinets or connecting directly from your amp head.
Each cabinet ships with both grilles included and backed by Seismic Audio’s one-year warranty. At 48 pounds and measuring 18″ x 25″ x 14″, it balances portability with serious bass performance.
| Spec | Value |
|---|---|
| Power (RMS) | 300 Watts |
| Power (Peak) | 600 Watts |
| Woofer | One 15″ with 50 oz magnet, 2.5″ Kapton voice coil |
| Frequency Response | 40Hz – 5000Hz |
| Sensitivity | 96 dB |
| Impedance | 8 Ohms |
| Inputs | Two 1/4″ inputs |
| Cabinet | 5/8″ plywood front panel, black carpet, metal corners |
| Ports | Dual ports (center positioned) |
| Grilles | 2 full metal grilles (1 black, 1 USA flag design) |
| Dimensions (HxWxD) | 18″ x 25″ x 14″ |
| Weight | 48 lbs |
| Handle | Recessed |
| What’s in Box | Speaker cabinet with both grilles |
| Warranty | One Year |
| Recommended For | Bass guitar stage monitoring, small venue performance |
This 300-watt RMS cabinet handles smaller to mid-size venues up to about 200 people effectively. For larger stages or outdoor events, consider pairing it with additional cabinets or a 2×10/4×10 setup. The focused 15-inch driver excels at stage monitoring and club-level performances where you need clear bass definition without overwhelming the mix.
Yes, the dual 1/4-inch inputs on the terminal cup allow you to daisy-chain multiple cabinets from a single amp head. Since each cabinet is 8 ohms, two cabinets will present a 4-ohm load to your amplifier. Always verify your amp can handle the combined impedance load before connecting multiple cabinets.
You’ll need a standard 1/4-inch speaker cable to connect from your amp head’s speaker output to either input jack on the SA-115-USA. Do not use instrument cables for this connection only proper speaker cables rated for the power load. The cabinet does not include speaker cables, so purchase appropriate length cables separately.
The dual center-positioned ports extend the low-frequency response and increase efficiency, giving you more bass output from the same amplifier power. Ported designs like this typically sound punchier and louder than sealed cabinets but may have slightly less tight control in the lowest frequencies. This makes the SA-115-USA well-suited for modern bass styles that benefit from enhanced low-end presence.
You only install one grille at a time either the classic black metal grille or the USA flag design grille. Both grilles are included so you can switch between them based on your preference or the venue. The grilles are easily interchangeable, allowing you to customize the cabinet’s appearance without affecting sound quality or protection.
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