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)
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Credit subject to status and affordability. Terms & Conditions Apply. KMR Audio Ltd trading as KMR Audio Ltd is a credit broker and is Authorised and Regulated by the Financial Conduct Authority. Credit is provided by Novuna Personal Finance, a trading style of Novuna Capital (UK) PLC, authorised and regulated by the Financial Conduct Authority. Financial Services Register no. 704348. The register can be accessed through http://www.fca.org.uk.
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