The SA-155T dual 15" PA speakers deliver serious power for bands, DJs, and venues that need full-range sound without compromise. Each cabinet pushes 700 watts RMS (1400 watts peak) through dual 15" woofers and a titanium compression driver, making this pair capable of handling crowds up to 500 people indoors or 300 people outdoors.

These speakers cover the full frequency spectrum from 45Hz to 20kHz, eliminating the need for subwoofers in most live sound applications. The dual-ported design and 4-ohm impedance ensure efficient power transfer from your amplifier, while the titanium horn driver cuts through stage volume without harshness.

Built with 5/8" plywood construction and precision-cut carpet, these cabinets withstand the rigors of regular transport and setup. The 14-gauge steel grilles protect the drivers, while recessed handles and rubber feet make positioning straightforward. At 96dB sensitivity, they deliver substantial output without requiring massive amplifier power.

Perfect for wedding receptions, church services, club gigs, and outdoor festivals where you need main PA coverage that reaches the back of the room. The dual 1/4" and Speakon inputs allow daisy-chaining to expand your system, and the passive crossover means no external processing required.

Connect directly to your power amplifier using standard speaker cables - Speakon or 1/4" connections work equally well. Each 73-pound cabinet includes all mounting hardware and protection circuits.

Seismic Audio backs these speakers with a one-year warranty and fast shipping. Professional-grade components at a price point that makes sense for working musicians and sound engineers.

Technical Specifications

Frequently Asked Questions

What size venue can the SA-155T pair handle?

This dual 15" pair covers indoor venues up to 500 people or outdoor spaces up to 300 people effectively. The high sensitivity and dual-woofer design provide enough headroom for live bands and DJ systems without distortion. For larger venues, consider adding subwoofers or additional SA-155T pairs.

Do I need a subwoofer with these speakers?

Not necessarily - the SA-155T reaches down to 45Hz, covering most bass content adequately for live sound applications. However, if you're running bass-heavy music for dancing or want that extra low-end impact, adding a subwoofer and using a crossover will let these speakers focus on mids and highs for better overall clarity.

What amplifier power do I need for the SA-155T?

Each cabinet handles 700 watts RMS at 4 ohms, so a stereo amplifier delivering 700-1000 watts per channel at 4 ohms works well. The 96dB sensitivity means they'll get loud with less power, but having headroom prevents clipping. Popular matches include Crown XTi or QSC GX series amplifiers.

Can I daisy-chain multiple SA-155T speakers together?

Yes, the dual 1/4" and Speakon inputs allow parallel connection of additional cabinets. Keep in mind that adding speakers reduces the total impedance load - two 4-ohm SA-155T cabinets per amplifier channel creates a 2-ohm load, so verify your amplifier is stable at 2 ohms before connecting multiple pairs.

What cables do I need to connect these speakers?

Use standard speaker cables with Speakon connectors for the most secure connection, or 1/4" TS (not TRS) cables for shorter runs. Never use instrument cables or XLR cables for speaker connections. For daisy-chaining, you'll need additional speaker cables to jump from the first cabinet to subsequent ones.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer. For more information, go to: www.P65Warnings.ca.gov