Features

PRV Audio is proud to present our MT8CX680-NDY-4 Coaxial Speaker from the MOTO Series (MT), high performance PRO audio line dedicated to motorsports installations.

This coaxial speaker is an easy fit and does not require an additional tweeter. Made from the highest quality materials and components to resist weather conditions and provide an easy and simple bolt on installation that transforms your system into the best sound reproduction.

This 2-way coaxial loudspeaker established the new benchmark for vocal reproduction for outdoor applications, making it ideal for improving the sound system in your boat, UTV, 4 wheeler, Slingshot or Motorcycle.

• Waterproof treated paper cone and surround stand up to the harshest conditions with true PRO audio performance.
• Full Range Sound, 2-Way coaxial with low frequency speaker combined with 1″ exit Titanium driver, able to respond from 80 Hz all the way up to 20,000 Hz
• High Output Speaker for 4 Wheelers, Slingshots, and Motorcycles that mounts practically in almost aftermarket pods or custom panels. Grill and Screws Included.
• Shared Neodymium motor design for both low frequency and high frequency, reducing phase problems and providing the smallest profile without sacrificing performance
• 8″ High performance coaxial speaker Built to Perform! Capable of high output levels, with separated midbass speaker and horn driver for two amplifier installation.

Its horn features a screw-on design to make it easy for the speaker to be serviced. Made from the toughest PM-4 Polycarbonate high wear-resistance material to ensure long life on its treads.

It is capable of reproducing the highest frequencies at easy covering a wide range, phasing up perfect with its low frequency speaker.

This low frequency speaker can keep up with its high frequency drivers thanks to its large voice coil and extreme sensitivity of 97 dB, combined with large neodymium magnets for efficient heat dissipation.

At 600 Watts this mid can generate an average of 130 dB of output, making it easy to match up with its horn driver tweeter.

Thanks to its special spider composition, no distortion occurs at high excursion, while its silver tinsel lead wire is capable of high current, providing exceptional reliability and dynamic sound.

This 8″ coaxial ( horn speaker ) is capable of high output levels and comes with a separate midbass speaker and horn driver for two amplifiers.

The separate midbass speaker is designed to handle lower frequencies, providing a rich and full bass sound, while the horn driver focuses on delivering clear and precise high frequencies. This division of labor allows each component to operate more efficiently, reducing distortion and ensuring a more balanced and dynamic overall sound quality.

Its incredible output capabilities make this coaxial one of the loudest speaker on the market!

PRV Audio 8″ Coaxial Speaker Neodymium MT8CX680-NDY-4 Full Range 2-Way Motorcycle Speaker

How to Install them:
This Coaxial speaker will need 600 Watts RMS per speaker for its low frequency and 80 Watts RMS per driver for its high frequency with recommended HPF using PRV Digital Signal Processor DSP

• 85 Hz at 18 dB per octave filter Crossover / BT18 for low frequency component
• 1400 Hz at 18 dB per octave filter Crossover / BT18 for high frequency component

Recommended LPF for speaker is 5,000 Hz at 18 dB per octave filter Crossover / BT18 or you may set it lower to 2000hz depending on the other components in your system.

One Amplifier
2 Speakers Setup – 1x MDX2000.2 at 2 Ohm, 2 speakers in parallel into CH1 and 2 Drivers in parallel into CH2

One Amplifier
4 Speakers Setup – 1x MDX2000.4 2 Ohm 2 speakers in parallel per CH1 and CH2 / 2 Drivers in parallel per CH3 and CH4

Reach the highest output level by following these installation recommendations for your coaxial with two amplifiers application!

Two Amplifiers 4 Speakers Setup
Speaker Amp 1x MDX2000.2 2 Ohm 2 speakers in parallel on each channel, giving each speaker up to 500 Watts each
Driver Amp 1x QS400.4 2 Ohm 2 drivers in parallel per bridged channel, giving each driver up to 100 Watts each

GENERAL SPECIFICATIONS

Nominal and Throat Diameter	Low Freq. 8″ (205.5 mm)	High Freq. 1″ (25.4 mm)
Nominal impedance	4 Ohm	8 Ohm
Nominal Power Handling*	300 Watt	40 Watt
Continuous Program Power (RMS)**	600 Watt	80 Watt
Max Peak Power***	1200 Watt	160 Watt
Sensitivity 2.00V at 1m	97 dB	106 dB
Recommended Hi Pass Crossover *For Full Power Handling	90 Hz* *12db Per Octave Crossover	1800 Hz* *12db Per Octave Crossover
Frequency Response	80 – 9 kHz	1.3 – 20 kHz
Voice Coil Diameter	2″ (51 mm)	1.75″ (44 mm)
Voice Coil Wire	CCAW	CCAW
Voice Coil Winding Depth	11.0 mm	N/A
Former Material	Kapton	Kapton
Magnetic Gap Depth	8.0 mm	N/A
Frame Material	Aluminum	Titanium

  ^{*Nominal power handling is defined as the maximum RMS power that the speaker can handle in a 2-hour test with a pink noise with 6dB of crest factor and a bandpass filter with 12db/oct tuned in its usable frequency range. **Continuous Program Power (RMS) is the maximum power that the speaker can handle considering a regular musical program using our recommended filters, this power can be used to define the optimum amplifier power to avoid a clean signal without clipping or saturation. ***Max Peak Power is the maximum power operation for the speaker, this power is allowed just for a few fractions of a second, usually found just on the peaks of the music. Keeping this power for a little longer timer will damage the speaker.}

THIELE-SMALL PARAMETERS

Equivalent Volume	Vas	17.1 l
Excursion (mathematical)***	Xmax	3.50 mm
Free Air Resonance	Fs	87.7 Hz
Mechanical Factor	Qms	6.96
Electrical Factor	Qes	0.44
Total Factor	Qts	0.41
Cone Area	Sd	243 cm²
Mechanical Mass	Mms	15.92 g
Bl Factor	Bl	8.0 Tm
Dc Resistance	Re	3.2 Ohm
Inductance	Le	0.18 mH at 1 kHz
Mechanical Mass Without Air	Mmd	13.77 g
Mechanical Compliance	Cms	0.206 mm/N

***Xmax=(Voice coil winding depth-Magnetic Gap depth)/2+ Mgnetic Gap Depth/4

EXTRA INFO

Overall Diameter	8.21” (205.5 mm)
Front Mount Baffle Cutout	7.30” (185.3 mm)
Mounting Depth	4.39” (111.5 mm)
Overall Depth	5.57” (141.5 mm) With Grill
Net Weight	4.63 Lbs (2.1 kg)
Shipping Weight	5.29 Lbs (2.4 kg)
Carton Dimensions W x L x H	9.45″x 9.25″ x 7.25″ (240 x 235 x 184mm)