The GH12M 12-inch passive wedge monitor delivers professional-grade floor monitoring for bands, solo performers, and DJs who need to hear themselves clearly on stage. This two-way monitor combines a 12-inch high-output woofer with a 1-inch horn tweeter to provide balanced sound reproduction across the frequency spectrum.

Handling 350 watts RMS and 700 watts peak power, the GH12M cuts through stage volume while maintaining clarity in the critical midrange frequencies where vocals and lead instruments live. The 8-ohm impedance makes it easy to run multiple monitors from a single amplifier channel, and the 95 dB sensitivity ensures efficient power usage.

The bass-reflex enclosure design extends low-frequency response down to 45 Hz, giving you enough bottom end for full-range monitoring without requiring a separate subwoofer. The wide-dispersion horn tweeter provides consistent coverage across the 20 kHz frequency range, so you'll hear balanced sound whether you're directly in front of the monitor or off to the side.

This monitor works well for small to medium venues accommodating up to 200 people, whether you're using it for vocal monitoring at a church service, instrument monitoring for a four-piece band, or DJ booth monitoring at a club. The wedge design provides the proper monitor angle when placed on the floor.

Connect via dual 1/4-inch TS jacks or spring-loaded speaker terminals, using standard speaker cable from your monitor amplifier or powered mixer. The rugged MDF cabinet features aviation-grade carpet covering, steel mesh grilles, and ABS corner guards for reliable transport.

Seismic Audio backs the GH12M with a one-year warranty and ships it ready to use out of the box.

Technical Specifications

Frequently Asked Questions

What size venue can the GH12M handle?

The GH12M works well for small to medium venues up to 200 people. It provides sufficient monitor volume for typical band and DJ applications in clubs, churches, school auditoriums, and outdoor events. For larger venues or very loud stages, consider using multiple monitors or stepping up to a higher-wattage model.

What amplifier do I need to power this monitor?

You'll need an external power amplifier rated for 350-500 watts RMS at 8 ohms. The monitor connects to your amp using standard speaker cable with 1/4-inch TS plugs or bare wire to the spring terminals. Many powered mixers with monitor outputs work well, or you can use a dedicated monitor amplifier.

Can I daisy-chain multiple GH12M monitors together?

Yes, the dual 1/4-inch inputs allow you to chain multiple monitors from one amplifier output. The 8-ohm impedance means two monitors will present a 4-ohm load, and four monitors will present a 2-ohm load. Make sure your amplifier is stable at the resulting impedance when connecting multiple units.

Do I need a subwoofer with this floor monitor?

The GH12M's frequency response extends down to 45 Hz, providing sufficient low end for most monitoring applications including vocals, guitars, keyboards, and drums. For bass-heavy music or if you specifically need to monitor kick drum and bass guitar fundamentals, adding a subwoofer can help, but it's not required for typical stage monitoring.

How does the GH12M compare to smaller 10-inch monitors?

The 12-inch driver provides more low-frequency extension and higher maximum volume than 10-inch monitors. This makes the GH12M better for monitoring bass-heavy instruments, louder stages, or when you need fuller-range sound. The trade-off is slightly larger size and weight compared to 10-inch alternatives.

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