CoAx-12 - Pair of 12 Inch Coaxial Speakers with Integrated T-Yoke

Model #: CoAx-12 (Pair) Pair of 12" Coaxial Speakers 250 Watts RMS / 8 Ohms Each Integrated T-Yoke
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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. If you are building your own speaker cabinet or replacing an old loudspeaker, this 12" coaxial speaker is what you need! The CoAx-12 is an awesome coaxial speaker with an integrated T-Yoke that produces a true sense of sound by allowing all the sound to flow from the same source and providing optimal coverage! At 250 Watts RMS, this speaker can handle what most amps can throw at it.

The Seismic Audio Experience

The Seismic Audio brand was designed with the notion that every musician should have access to high quality Pro Audio gear at an affordable price! With your purchase, you will receive two 12 Inch Coaxial Speakers pictured and described above. You will also receive top notch customer service, plus all the technical expertise you will ever need is just a phone call or email away! Join the Seismic Audio revolution and see what tens of thousands already know. Whether it is for the garage band, live sound, stage, or studio...Seismic Audio is bang for the buck, the best Pro Audio gear for all PA applications!


Pair of 12 Inch Coaxial Speakers
Replacement Coaxial Speakers
Power Rating
250 Watts RMS - 500 Watts Peak each
Nominal Impedance
8 Ohms
Frequency Range
50Hz - 18KHz
97 dB
Magnet Weight
LF: Y30 - 70 oz HF: Y30 - 22.5 oz
Voice Coil
LF: 3" Voice Coil HF: 1.75" Voice Coil
Chassis Type
Pressed Steel
Paper Cone/Cloth Edge
Mounting Information
Cut Out Diameter: 11 1/8" Diameter: 12 1/4" Magnet Structure Diameter: Mounting Slot Dimensions: 1/4", 0.25" Number of Mounting Slots: 6 Overall Depth: 8"
TS Parameters
Resonant Frequency (fs): 52 Hz DC Resistance (Re): 5.8 Ohm Mechanical Q (Qms): 7.42 Electromagnetic Q (Qes): 0.5 Total Q (Qts): 0.5 Compliance Equivalent Volume (Vas): 57.16 Ltr Mechanical Compliance of Suspension (Cms): 0.184 mm/N BL Product (BL): 17.35 Tm Diaphragm Mass Airload (Mms): 65.7g Surface Area of Cone (Sd): 547.4 cm2
Mechanical Compliance of Suspension (Cms)
0.184 mm/N
16.4 lbs each
One Year Warranty
Integrated T-Yoke
Technical Specs
Frequency Curve Chart

CoAx-12 Frequency Curve Chart

Bundled Specifications


When will I get my order?

We realize that you want your Pro Audio Equipment yesterday. Here at Seismic Audio Speakers, we aim to ship items out immediately. If you place your order before 2:30 Central time, we will ship your pro audio equipment on the very same business day.
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