The GH15M delivers professional floor monitor performance for bands, DJs, and live sound engineers who need reliable stage monitoring without breaking the budget. This passive wedge monitor puts vocals and instruments right where performers need to hear them, whether you're running monitors for a four-piece band or providing foldback for a full choir.

Built around a robust 15-inch ribbed cone woofer paired with a 1-inch compression driver on a wide dispersion horn, the GH15M covers the full frequency spectrum from 45 Hz to 20 kHz. The 2-way design ensures vocals cut through while maintaining the low-end punch that keeps rhythm sections locked in.

At 400 watts RMS and 800 watts peak power handling with 8-ohm impedance, this monitor pairs efficiently with most power amplifiers and allows easy daisy-chaining of multiple units. The 96 dB sensitivity rating means you get plenty of volume without pushing your amp to its limits. The tuned bass reflex enclosure maximizes low-frequency response while the computer-engineered MDF cabinet keeps unwanted resonance in check.

Perfect for small to mid-sized venues accommodating 100-300 people, the GH15M works equally well for band rehearsals, church sound systems, mobile DJ setups, and karaoke nights. The wedge design provides optimal monitor angles whether placed on stage or floor level.

Dual input options include both 1/4-inch TS jacks and spring-loaded speaker wire terminals for flexible connectivity with your existing PA system setup. Heavy-duty ABS handles and corner guards plus aviation-grade carpet covering ensure this monitor survives the rigors of regular transport.

Seismic Audio backs the GH15M with solid warranty coverage and ships direct to keep your monitor system affordable and reliable.

Technical Specifications

Frequently Asked Questions

What size venue can the GH15M handle as a floor monitor?

The GH15M works well for small to mid-sized venues accommodating 100-300 people. With 400 watts RMS power handling and 96 dB sensitivity, it provides sufficient monitor volume for most bands, solo performers, and speaking applications in churches, clubs, and outdoor events without requiring excessive amplifier power.

What cables and amplifier do I need to run the GH15M?

You'll need a power amplifier capable of delivering 200-400 watts at 8 ohms, connected via standard speaker cables with 1/4-inch TS plugs or bare wire to the spring-loaded terminals. The 8-ohm impedance allows you to daisy-chain multiple monitors from a single amplifier channel, making it easy to expand your monitor system.

Do I need a subwoofer with this monitor for full-range sound?

The GH15M's 15-inch woofer and 45 Hz low-frequency response provide solid bass reproduction for most monitoring applications. For typical stage monitoring of vocals and instruments, no subwoofer is needed. However, if you're using it as a main PA speaker for bass-heavy music or need extended low-end for electronic music, adding a subwoofer will enhance the overall system.

How does the wedge angle work for stage positioning?

The angled wedge cabinet design positions the drivers at the optimal angle for floor placement, directing sound upward toward performers' ears rather than their legs. This monitor angle reduces feedback while ensuring vocalists and musicians can clearly hear themselves without having to lean down toward the speaker.

Can I use the GH15M as both a floor monitor and main PA speaker?

Yes, the GH15M functions well in both applications. As a floor monitor, the wedge design provides proper upward projection for stage use. When used upright as a main PA speaker, it delivers full-range sound for smaller venues. The dual 1/4-inch inputs make it easy to integrate into either monitor or main PA configurations.

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