SA-15M - Passive 15" Floor / Stage Monitor Wedge Style
The SA-15M floor monitor delivers clear vocals and instruments back to performers on stage. This passive 15" wedge monitor handles 250 watts RMS and requires an external amplifier to operate.
Built around a 15" woofer with 50-ounce magnet and 2.5" Kapton voice coil, the SA-15M produces full-range sound from 40Hz to 20KHz. The piezo tweeter array ensures vocalists and musicians hear every detail of their performance mix.
At 97dB sensitivity and 8-ohm impedance, this monitor pairs efficiently with most power amplifiers. The dual-port design enhances low-frequency response while the 2-way crossover maintains clean separation between the woofer and tweeter. The rugged 5/8" plywood construction with black carpet finish and metal corners stands up to regular gigging.
Perfect for band rehearsals, live performances, and DJ setups where performers need to hear themselves clearly. Works well in small to medium venues up to 200 people. Churches use these for choir monitoring, while bands rely on them for vocal and instrument monitoring during performances.
Connect via dual 1/4" inputs on the rear panel. Standard speaker cables connect from your power amplifier to the monitor. The wedge design angles sound directly toward performers while recessed handles make transport manageable.
Seismic Audio backs the SA-15M with a one-year warranty. At 38 pounds, it delivers professional monitor performance at a practical price point for working musicians and venues.
Technical Specifications
| Spec | Value |
|---|---|
| Model | SA-15M |
| Type | Passive Floor/Stage Monitor |
| Power (RMS) | 250 Watts |
| Power (Peak) | 500 Watts |
| Amplifier Type | Requires External Amplifier |
| Woofer | 15" with 50 oz magnet, 2.5" Kapton voice coil |
| HF Driver | Piezo Tweeter (4x10 array) |
| Frequency Response | 40Hz - 20KHz |
| Sensitivity | 97 dB |
| Impedance | 8 Ohms |
| Crossover | 2-way |
| Inputs | Dual 1/4" inputs |
| Cabinet | 5/8" plywood front panel, black carpet, metal corners |
| Grille | Full metal grille |
| Ports | Dual ports |
| Dimensions | 23" H x 18" W x 17" D |
| Weight | 38 lbs |
| Handles | Recessed |
| Warranty | One Year |
| Recommended For | Band monitoring, vocal monitoring, small venue sound |
Frequently Asked Questions
What amplifier power do I need for the SA-15M monitor?
The SA-15M handles 250 watts RMS at 8 ohms, so match it with an amplifier that delivers 200-300 watts per channel at 8 ohms. Most professional power amplifiers in the 500-1000 watt range will drive this monitor effectively. Avoid under-powering, as clipping from a weak amplifier can damage the speakers more than clean power from a properly sized amp.
How many people can hear this monitor clearly in a venue?
The SA-15M works best for monitoring in venues up to 200 people. As a stage monitor, it's designed to provide clear sound to performers within 6-10 feet of the wedge position. For audience coverage, you'd want main PA speakers instead, but this monitor excels at giving bands and vocalists the mix they need to perform confidently.
Can I daisy-chain multiple SA-15M monitors together?
Yes, you can connect multiple SA-15M monitors to the same amplifier channel using the dual 1/4" inputs on each monitor. Wire them in parallel to maintain the 8-ohm load, or check your amplifier's minimum impedance rating if connecting several monitors. Most power amps handle 4-ohm loads when running two 8-ohm monitors per channel.
Do I need a subwoofer with this floor monitor?
The SA-15M's 15" woofer and dual-port design provide solid low-frequency response down to 40Hz, so a subwoofer isn't necessary for most monitoring applications. Vocalists and musicians typically need clarity in the vocal and instrument ranges more than deep bass in their monitor mix. Save your budget for more monitors or better amplification.
What cables do I need to connect this monitor?
You'll need standard speaker cables with 1/4" connectors to run from your power amplifier outputs to the SA-15M's rear panel inputs. Use 12 or 14 gauge speaker cable for runs under 50 feet. The monitor includes the input panel with dual 1/4" jacks, but cables are sold separately.
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