SPL Crescendo

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8-channel mic preamp with SPL’s 120V technology delivering ultimate transparency and distortion free operation.

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The SPL Crescendo uses SPL’s 5th generation SUPRA op-amps to create a 120-volt power rail, resulting in more 10dB of additional headroom and 3dB less noise. It also makes it extremely difficult to overload the preamps.

Housed in a 3U rack, each of the mic preamps includes an analogue VU meter, -10dB calibration switch, +48V phantom power, polarity reversal switch and a -20dB input pad. A gain control is also included offering a range of 52dB. The preamp offers 18dB to 70dB of gain which is reduced to -2dB to 50dB with the -20dB pad switched on.

Differential amplifiers at the input stage are designed with transistor pairs which are consolidating in a dedicated housing. Transistors are precisely matched and thermally coupled to offer superior common mode rejection. Discrete op-amps are used at the output stage and are designed to drive long cable paths. Active Servo circuits have also been employed to eliminate DC voltage. Finally, the built-in toroidal transformer power supply is shielded using a special Mu-metal sheet to avoid any electrical interference.

On the back, are eight inputs and eight outputs over XLR as well as eight additional outputs via D-sub (DB25) for easy connectivity.

The SPL Crescendo Main Features include:

120V 8-Channel microphone preamp
Unique 120V technology makes it almost impossible to overdrive
Absolute signal fidelity and clarity
Wide dynamic range provides a very clean sound with little to no distortion
SPL’s proprietary SUPRA Op-Amp creates +/-60V
Individual gain control (Mic Gain) for each channel
Phase reversal switch
Phantom power
-20dB PAD switch
18dB to 70dB pre-amplifier gain or to -2dB to 50dB control (-20dB pad engaged)

Brand

SPL

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