SPL / Crescendo

An 8-channel microphone preamplifier with SPL's 120V technology and fully balanced signal flow.

*This product requires an outlet that can supply AC115V 50/60Hz. Please note that it cannot be used properly with a normal household outlet (AC 100V) without boosting.

Using SPL's 120V technology, Crescendo is an 8-channel microphone preamplifier with fully balanced signal flow.
The input stage uses 10 matched pairs of PNP transistors (differential input transistors) to achieve extremely low noise and high common-mode rejection. Each of the eight input stages uses six 5th generation 120V SUPRA op amps.
The transformerless input and output stage design ensures extremely linear amplification. The output stage operates as a current amplifier, providing Class-A operation with a quiescent current of more than 6mA.

■Main features
- Uses SPL 120V technology
- Fully balanced signal flow
- Uses 10 pairs of matched PNP transistors (differential input transistors)
- 48V phantom, phase switching, pad, VU meter