Product Showcase
SPL Crescendo duo V2
₹333,560.00
Analog input & output; XLR (balanced)
Maximum input & output level
32.5 dBu
Input impedance
10 kΩ
Output impedance
75 Ω
Frequency range (-3dB)
20 Hz – 100 kHz
THD + N (10 Hz – 22 kHz, 32 dB Gain)
0.002 %
THD + N (10 Hz – 22 kHz, 63 dB Gain)
0.001 %
Noise (A-weighted, 150 Ω, 32 dB Gain)
– 94 dBu
Noise (A-weighted, 150 Ω, 63 dB Gain)
– 67.5 dBu
E.I.N. (150 Ω)
-130.5 dBu
Common mode rejection (1 kHz)
88 dB
Internal Linear Power Supply with Shielded Toroidal Transformer
Operating voltage for audio electronics
+/- 60 V
Operating voltage for relays and LEDs
+ 12 V
Mains Power Supply
Mains voltage (selectable, see fuse chamber)
230 V AC / 50; 115 V AC / 60 Hz
Fuse for 230 V
T 1 A
Fuse for 115 V
T 2 A
Power consumption
max. 20 VA
Dimensions & Weight
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
Available on backorder
Crescendo duo
Dual-Channel Microphone Preamplifier with 120V technology
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.
48 V
The 48V switch activates the required phantom power of 48 volts for the use of condenser microphones.
VU-10
With this switch the level displayed in the VU meter can be adjusted by -10 dB. This is very handy to display high levels.
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