SPL Crescendo Duo - Dual-Channel Microphone Preamp
SPL Crescendo Duo - Dual-Channel Microphone Preamp
Crescendo Duo combines the precise sound that German Rundfunk-Technik is famous for with the innovative SPL 120V technology. The internal operating voltage of 120 volts allows Crescendo microphone preamplifiers to break completely new ground. This results in microphone preamps that sound detail-rich, vivid and equally honest.
Crescendo duo lets microphones shine in a whole new light – because they have never been amplified like this before.
The Undistortable
Thanks to the SPL 120V technology, it is almost impossible to overdrive this microphone preamplifier.
Crescendo duo is a dual-channel microphone preamplifier with 120V technology.
Both channels feature the same range of functions. Besides phantom power (48 V) for condenser microphones, polarity reversal, a high-pass filter and a PAD switch, they provide the possibility to adjust the VU meter to display very high levels – so they leave nothing to be desired. The gain can be adjusted comfortably and precisely via a 12-step switch. With the switchable output control, the output level of the Crescendo duo can be perfectly adapted to following AD converters. Two outputs per channel allow the signal to be sent to two different devices in parallel. In addition to the extensive feature set and the outstanding technical characteristics, Crescendo duo convinces with a sonic authenticity that is second to none.
SPL Crescendo Duo Specifications
- Maximum output level: 32.5 dBu
- Input impedance: 10 kΩ
- Output impedance: 75 Ω
- Frequency range (50 dB Gain, -3dB): 20 Hz – 100 kHz
- THD + N (10 Hz – 22 kHz, 30 dB Gain): 0.0036 %
- THD + N (10 Hz – 22 kHz, 70 dB Gain): 0.32 %
- Noise (A-weighted, 150 Ω, 30 dB Gain): - 89.2 dBu
- Noise (A-weighted, 150 Ω, 70 dB Gain): - 51.7 dBu
- Equivalent Input Noise (EIN, 70 dB Gain, 150 Ω): -121.7 dBu
- Common mode rejection (1 kHz, 30 dB Gain): 79 dB
- Operating voltage for audio electronics: +/- 60 V
- Operating voltage for relays and LEDs: + 12 V
- Mains voltage (selectable, see fuse chamber): 230 V AC / 50; 115 V AC / 60 Hz
- Fuse for 230 V: T 0.5 A
- Fuse for 115 V: T 1 A
- Power consumption: max. 17.7 VA
- W x H x D (width x height x depth): 482 x 88 x 300 mm/19 x 3.46 x 11.8 inch
- Unit weight: 6.1 kg/13.45 lbs
- Shipping weight (incl. packaging): 7.5 kg/16.54 lbs