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Black EX Dual Mono Amplifier The Black EX Dual Mono Amplifier is designed in a custom plated high-grade aluminum chassis that contains independent power supplies and amplifiers unique to Black EX for true dual-mono performance. The EX Amplifier is rated at 350W/700W per channel producing incredible high-power accuracy and musicality to your loudspeaker.

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EX Amplifier

EX Dual Mono Amplifier

The highly efficient technology of the EX Amplifier is always in a ready state for high performance operation. The EX Amplifier is designed to drive any loudspeaker with ultra low-noise, high power amplification. The internal gain switches allow you to further optimize the EX Amplifier to your system.

The high efficiency of Class D eliminates thermal modulation, making the EX amplifier resistant to output stage bias wander and sonic ghosting. The output power devices are operating as efficient switches, in that few output devices are needed to deliver considerable audio power. The EX Amplifier is designed with ultra-short signal paths and uses the absolute minimum number of output devices to deliver over 700 watts of audio power without loss of dynamics, remaining true to the audio source.

High Dynamic Range - Low Noise and Distortion: The single stage architecture of our linear switching power stage has remarkable audio band noise characteristics. With over 130dB dynamic range potential and vanishingly low IMD and THD distortion is completely transparent, hear-through performance is delivered.


Our proprietary SSHA (Single Stage High-Current Amplifier) interposer defines the sonic quality of the EX Dual Mono Amplifier. This is a very fast, low noise amplifier with a single-stage folded cascode architecture and over 500mA of peak current output capability. It maintains constant very low distortion levels through the audio band because of its high open-loop bandwidth. The SSHA module brings a further element of dynamic resolution and contrast to the NCore Amplifier power buffer. The vertical modular design permits a tight, efficient Printed Circuit Board (PCB) layout that combines the best of IC based and discrete component design. The PCB represents a final degree of design refinement that is especially critical when the circuit is capable of 130dB of dynamic range or more.



Power Output 1% THD per Channel

700W 4 ohms, 350W 8 ohms

Minimum Load

2 ohms

Peak Output Current

27 amperes

Frequency Response

+/-3 dB 0Hz-50KHz, all loads


0.002% 1W, 1KHz, 4 ohms


0.0003%, 1W, 14:15KHz, 4 ohms

Output noise

35uVRMS A-weighted 10Hz-20KHz

Voltage gain

27dB (internal switches select for 33dB)

Damping factor


Output Impedance at 100Hz

<16 milliohms

Dynamic Range


Input Voltage for Max Output

2.3Vrms at 27dB gain

Input connections

Single-ended RCA or balanced XLR

RCA input impedance


Balanced input impedance


Output connections

2 sets WBT Nextgen 5-way binding posts


Power On usage


Standby usage


Internally Set Operating Voltages

100-120VAC or 230-240VAC 50/60 Hz


17.75 W x 15.5 D x 3.5 H inches, 451 x 394 x 89mm


25 lbs. (12kg)



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