SPL Crescendo 8 Microphone Preamplifier

As Clean As They Come
Thanks to SPL’s specially developed 120V technology, powered by high voltage SUPRA op-amps, Crescendo's operating headroom is such that the preamps are essentially impossible to overdrive. This provides a potential internal operating voltage of +/- around 60 volts and enables the preamp circuit to amplify even rapid transients.

Remain In Control
Each of Crescendo’s 8 preamp channels can be independently operated with all the trimmings you’d expect from modern studio preamps including gain control, polarity reverse, 48v phantom power, a 20dB pad for use with more boisterous signals, and a dedicated per-channel VU read-out meter. To accommodate the widest range of microphones possible, the microphone gain of each channel ranges from 18 to 70dB allowing plenty of operating room even for low output sources such as ribbon microphones.

Meticulously Designed
Technical innovation within the Crescendo is up to SPL’s usual high standard. Differential amplifiers are built with precisely matched transistor pairs and combined with thermal coupling to ensure an impressively low thermal distortion.

The discrete output stage op-amps also operate a 6mA dormant current ensuring the Crescendo meets the standard of Class-A operation.

Finally, a specially selected Toroidal transformer power supply is shielded with a custom-fabricated sheeting integrated into the Crescendo’s housing to avoid electrical interference and ensure no power noise bleeds into the range of the preamps.