• Intro

    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.

  • EX Amp

    EX Dual Mono Amplifier

    ex dual mono amp flat angle

    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.

    ex dual mono amp flat straight

    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.

    ex dual mono amp back panel

    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.

  • Tech

    EX Amplifier Technology

    SSHA logo tech

    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.

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  • Specs

    EX Amplifier Specifications


    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
    THD+N: 0.002% 1W, 1KHz, 4 ohms
    IMD (CCIF): 0.0003%, 1W, 14:15KHz, 4 ohms
    Output noise: 35uVRMS A-weighted 10Hz-20KHz
    Voltage gain: 27dB (internal switches select for 33dB)
    Damping factor: >500
    Output Impedance at 100Hz: <16 milliohms
    Dynamic Range: 126dB
    Input Voltage for Max Output: 2.3Vrms at 27dB gain
    Input connections: Single-ended RCA or balanced XLR
    RCA input impedance: 100Kohms
    Balanced input impedance: 20Kohms
    Output connections: 2 sets WBT Nextgen 5-way binding posts


    Power On usage: 44W
    Standby usage: 0.5W
    Internally Set Operating Voltages: 100-120VAC or 230-240VAC 50/60 Hz
    Size: 17.75 W x 15.5 D x 3.5 H inches, 451 x 394 x 89mm
    Weight: 25 lbs. (12kg)

    Features and specifications are subject to improvements and changes without prior notice.