12" Floor / Studio / Stage Monitor or Main

$174.99 $199.99

12" Floor / Studio / Stage Monitor or Main

$174.99 $199.99

The SA-12M.3 is a dual-purpose 12" monitor designed for musicians who need reliable stage monitoring and mobile performers who require a versatile PA solution. This 2-way passive monitor delivers both floor wedge monitoring and pole-mounted main speaker functionality in a single compact cabinet.

Built around a 12" woofer with a 40 oz magnet and 2" voice coil, the SA-12M.3 handles 150 watts RMS with 300 watts peak power handling. The 4x10 piezo horn tweeter extends frequency response from 45Hz to 20kHz, providing vocal clarity and instrumental definition across the full audio spectrum.

The 8-ohm impedance works with any standard amplifier, while dual 1/4" inputs allow direct connection or daisy-chaining multiple monitors. At 95dB sensitivity, this monitor produces sufficient volume for small to medium venues without requiring excessive amplifier power. The dual-ported design enhances low-frequency response, making it effective for both vocal monitoring and full-range applications.

Ideal for bands needing stage monitors, DJs working venues up to 200 people, church sound systems, and wedding performers. The angled cabinet design works positioned on either side, and the included pole mount transforms it into a main speaker when needed.

Connect directly to your mixer, amplifier, or powered mixer using standard 1/4" instrument cables. The plywood construction with steel grille and metal corners handles regular transport and stage use.

Seismic Audio backs the SA-12M.3 with a one-year warranty and direct factory support, delivering professional monitoring performance at a practical price point.

Technical Specifications

Spec Value
Power Handling (RMS) 150 watts
Power Handling (Peak) 300 watts
Woofer 12" with 40 oz magnet, 2" voice coil
HF Driver 4x10 piezo horn tweeter
Frequency Response 45Hz - 20kHz
Sensitivity 95dB
Impedance 8 ohms
Inputs Dual 1/4"
Cabinet Construction Plywood with steel grille
Ports Dual ported
Mounting Pole mount included, floor wedge
Handle Strap handle on top
Corners Black metal corners
Dimensions 22" L x 16" H x 16" D
Weight 31 lbs
Warranty 1 year
Recommended For Stage monitoring, small venue PA, church sound

Frequently Asked Questions

What size venue can the SA-12M.3 handle as a main speaker?

As a main speaker on a pole mount, the SA-12M.3 works well for intimate venues up to 200 people, such as coffee shops, small clubs, wedding ceremonies, or church services. For larger crowds, consider pairing it with a subwoofer or using multiple units. Its 95dB sensitivity and 300-watt peak handling provide sufficient volume for acoustic acts, solo performers, and small band setups in these environments.

Can I daisy-chain multiple SA-12M.3 monitors together?

Yes, the dual 1/4" inputs allow you to connect multiple monitors in a chain from a single amplifier output. Connect your amplifier to the first monitor's input, then run a cable from that monitor's second input to the next monitor, and so on. Since each monitor is 8 ohms, be mindful of your amplifier's minimum impedance rating when connecting multiple units.

Do I need a subwoofer with this monitor for live band use?

For most live band monitoring applications, the SA-12M.3's 45Hz low-frequency response handles vocals, guitars, keyboards, and most instruments without a subwoofer. However, if you're monitoring bass-heavy material or using it as a main speaker for electronic music, hip-hop, or full-band performances, adding a subwoofer will provide the deep bass extension that enhances the overall sound. The 12" woofer delivers solid mid-bass punch for typical stage monitoring needs.

What cables do I need to connect this monitor?

You'll need standard 1/4" TS (mono) instrument cables to connect the SA-12M.3 to your amplifier, powered mixer, or monitor send. The monitor has two 1/4" inputs, so you can use either one for a single connection or both for daisy-chaining to additional monitors. Most guitar cables or standard speaker cables with 1/4" connectors will work fine.

How does the angled positioning work for stage monitoring?

The SA-12M.3's wedge-shaped cabinet can be positioned on either side to achieve the optimal monitor angle for your stage setup. Place it with the angled side down for a traditional floor monitor that aims sound upward toward the performer, or flip it to adjust the angle based on stage height and performer position. The strap handle on top makes repositioning quick and easy during setup.

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
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SA-12M.3 - 12" PA/DJ Floor / Studio / Stage Monitor or Main

  • Model # - SA-12M.3
  • 2-way 12" pro audio speaker with 40 oz magnet and 2" voice coil
  • 150 watts RMS and 300 watts peak
  • 4x10 piezo horn tweeter
  • two 1/4" inputs
  • Frequency Response: 45 to 20K Hz
  • Wired at 8 ohms
  • 95 db
  • Dual ports
  • Front panel plywood
  • Full face steel grill
  • Black Metal Corners
  • Metal pole mount for use as a main
  • Strap Handle on top
  • Can be positioned on either side for desirable angle.
  • 22" long x 16" tall x 16" deep
  • Weight: 31 lbs per monitor

SA-12M.3 - 12" PA/DJ Floor / Studio / Stage Monitor or Main

The Seismic Audio M.3 series of Monitors are affordable and ideal for any Pro Audio application. Whether you are doing live sound, in the studio, an emcee, a DJ gig, or karaoke...The ability to hear yourself on stage is essential. These monitors give you a true sense of your sound! It is the perfect solution for the musician that is seeking high quality sound as well as a monitor that is easy to use and easy to set up! This monitor is great for vocals, PA systems, small DJ gigs, weddings, churches, and a sound monitor. These can be used on any setup for full band or drum monitors.