SA-155.2 - Pair of Dual 15" PA / DJ / Band Speakers
The SA-155.2 delivers serious sound reinforcement for DJs, live bands, and church sound systems that need powerful bass response and clear vocal projection. This pair of dual 15" passive PA speakers handles the demanding dynamics of live music while maintaining speech intelligibility for worship services and events.
Each cabinet packs two 15" woofers that produce deep, punchy low end down to 45Hz, while dual 2" x 5" tweeters ensure vocals cut through the mix with clarity. The 4-ohm impedance maximizes power transfer from your amplifier, and 96 dB sensitivity means you get strong output without pushing your amp to its limits.
At 500 watts RMS per cabinet (1000 watts peak), these speakers handle venues up to 400 people indoors or 200-250 people outdoors. The dual-ported design enhances bass response, making them effective as mains without requiring a subwoofer for most applications. Steel grilles protect the drivers during transport and setup.
Connect via standard 1/4" speaker cables from your amplifier to the terminal cup inputs on each cabinet. Daisy-chaining capability lets you link additional speakers for larger venues. The 5/8" plywood construction and pocket handles balance durability with portability at 51 pounds per cabinet.
Each pair includes a one-year warranty and ships fast from our warehouse. Professional-grade sound engineering meets accessible pricing for performers who demand reliable PA performance.
Technical Specifications
| Spec | Value |
|---|---|
| Power (RMS) | 500W per cabinet |
| Power (Peak) | 1000W per cabinet |
| Woofer | 2 × 15" (50 oz magnet, 2" voice coil each) |
| HF Driver | 2 × 2" × 5" tweeters |
| Frequency Response | 45Hz – 20kHz |
| Sensitivity | 96 dB |
| Impedance | 4 ohms |
| Inputs | Terminal cup with (2) 1/4" inputs |
| Cabinet | 5/8" plywood front panel, dual ported |
| Dimensions | 38" H × 16" W × 12" D |
| Weight | 51 lbs per cabinet |
| What's in Box | Pair (2) of SA-155.2 speaker cabinets |
| Warranty | One-year warranty |
| Recommended For | Live bands, DJ events, church PA, karaoke systems |
Frequently Asked Questions
What size venues can these speakers handle?
The SA-155.2 pair effectively covers indoor venues up to 400 people or outdoor events up to 200-250 people. The dual 15" woofers and high sensitivity provide strong output for medium-sized churches, wedding receptions, club gigs, and community events. For larger venues, you can daisy-chain additional cabinets or add a subwoofer for extended low-end response.
What amplifier power do I need for these speakers?
You'll need an amplifier rated for at least 250-400 watts RMS per channel at 4 ohms to properly drive these speakers. The 4-ohm impedance allows your amplifier to deliver more power compared to 8-ohm speakers. Popular choices include QSC GX series, Crown XTi series, or similar professional power amplifiers with sufficient headroom for dynamic music content.
Do I need a subwoofer with these dual 15" speakers?
For most applications, these speakers provide sufficient bass response down to 45Hz without a subwoofer. The dual 15" woofers per cabinet deliver solid low-end punch for rock, country, pop, and worship music. However, if you're playing hip-hop, EDM, or other bass-heavy genres, adding a subwoofer will enhance the deepest frequencies and reduce strain on the main speakers.
What cables do I need to connect these speakers?
You'll need standard 1/4" TS (tip-sleeve) speaker cables to connect from your amplifier outputs to each cabinet's terminal cup. Never use instrument cables or XLR cables for speaker connections. The terminal cups accept dual 1/4" inputs, allowing you to daisy-chain additional speakers if needed. Plan for 10-25 foot speaker cables depending on your stage setup.
How do these compare to powered speakers for live sound?
These passive speakers require an external amplifier but offer several advantages: better heat dissipation for extended use, easier repair if components fail, and the flexibility to upgrade your amplifier separately. They're typically more cost-effective for permanent installations or when you already own quality amplification. Powered speakers are more convenient for mobile DJs who prioritize quick setup and minimal rack gear.
-
Order by Phone
-
Free Same-Day Shipping
-
When will I Get my order?
When will I get my order?
We realize that you want your Pro Audio Equipment yesterday. Here at Seismic Audio Speakers, we aim to ship items out immediately. If you place your order before 2:30 Central time, we will ship your pro audio equipment on the very same business day.
Order today, and you'll receive your package on
-
Free Same-Day Shipping
-
1-year Warranty
-
30-Day Money-Back Guarantee
-
Satisfaction Guarantee
">