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    SPL Crescendo Eight-Channel Microphone Preamplifier featuring 120V Technology

    1 In Stock
    The Crescendo is the first microphone preamplifier which operates with an internal operating voltage of 120V. Making it absolutely unique, because with the 120V Technology it is nearly impossible to overdrive this preamplifier. The Crescendo excels with absolute signal fidelity and clarity. Rediscover your microphones, they have never been amplified like this.

    Product Features:

    • The Crescendo features a fully balanced signal flow. The input stage uses 10 pairs of matched PNP Transistors (Differential Input Transistors) for extremely low noise and a very high common mode rejection.
    • Each of the eight input stages has six 5th generation 120V SPL SUPRA Operation Amplifiers.
    • The transformerless design of the input/output stages guarantees highly linear amplifying.
    • The output stages operate as current amplifier and therefore provide Class-A operation with more than 6mA quiescent current.

    Technical Specifications:

    Frequency range: 20-50kHz, -3dB
    Mic pre amp gain: 70 dB (adjustable gain control)
    Input impedance: 10 kOhm
    Output impedance: < 600 Ohm


    (A-weighted) (60dB Gain) -69.7 dB (30dB Gain) -87.5 dB
    FFT (60dB Gain) -96dBu (20 dB Gain) -120dBu
    CMRR (60 dB Gain) > 65dBu/1kHz (30 dB Gain) > 75dBu/1kHz
    THD/N (60dB Gain) 0.04% (30dB Gain) 0.008% (10dB Gain) 0.00009%
    E.I.N (60dB Gain) 150 Ohm 129.5 dB (60dB Gain) 40 Ohm 134.4 dB

    Power consumption:
    230V: 51.6 W

    0 dBu = 0.775 V. Subject to change without notice.