SPL Crescendo duo Dual-Channel Microphone Preamplifier

Analog input & output; XLR (balanced)

• 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

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 0.5 A
• Fuse for 115 V: T 1 A
• Power consumption: max. 17.7 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