SoundConnect Microphone Power Supply
Single Channel Microphone Power Supply
SoundConnect is a microphone power supply and amplifier designed for use with the Listen SCM microphone and also compatible with reference microphones from other manufacturers including B&K and GRAS. Its switchable polarization voltage (0, 28, 200V) allows it to be used with both traditional and pre-polarized versions of these microphones.
SoundConnect extends the dynamic range of your measurement system by as much as 80 dB from 2.5 µVrms to 50 Vrms. This offers a better signal to noise ratio for your measurements and therefore greater accuracy. It also offers two signal attenuation settings to avoid clipping with high-level signals.
A stepped level indicator simplifies gain-setting by offering clear visual feedback of the signal level. Cascaded attenuator and amplifier stages ensure amplification linearity with a minimum of noise and distortion. This is particularly useful for measuring low sensitivity microphones, self-noise, and transducer distortion.
SoundConnect features a LEMO input connector, making it compatible with most measurement microphones. It also has a BNC line in, a BNC output, and an RCA output, simplifying connectivity to a SoundCheck system. Its housing is a rugged all-metal construction that can be used in either a horizontal or vertical orientation, making it suitable for harsh production environments as well as the R&D laboratory.
SoundConnect is made in the U.S.A. and is designed to UL and CE requirements.
- Cost effective
- Simple to use
- Compact and rugged
- BNC and LEMO connectors for compatibility with wide range of microphones
- Full performance from Brüel & Kjær & compatible microphones and preamplifiers
Input Connectors: BNC and LEMO
Output Connectors: BNC on front panel in parallel with RCA phono on rear panel
Frequency range: 20 Hz to 100 kHz (± 0.1 dB) (-3 dB at 5 Hz and 200 kHz)
Gain: -20 to 60 ± 0.2 dB in steps of 20 ± 0.1 dB
Preamplifier supply: 120V @ 2mA single or ± 14V dual
Input Noise: <1.8μVrms (A-weighted), <3.0μVrms (20 20 kHz), @ 20 60 dB
Total Harmonic Distortion: <0.003%
Microphone polarization voltage: 0, 28, 200 V ± 1%, Stability better than 0.5% for ± 10% variations in mains-voltage
Input impedance: 1 MΩ
Output impedance: 600 Ω
Output attenuator: 0 dB (7.07 Vp), -8 dB (2.82 Vp), -14 dB (1.41 Vp) ± 0.1 dB
Peak Level Meter: Indication at -20, -10, 0 dB, and overload relative to selected output range ± 0.5 dB
Power Requirements: 115/230 VAC ± 10% switchable, 50 – 60 Hz, detachable IEC power cord
Dimensions: 5.5″ H (139.7 mm), 2.5″ W (63.5 mm), 7.5″ D (190.5 mm)
Weight: 2 lb. (910 g)
Operating Temperature: 0° to 35° C
Part # 4020: SoundConnect microphone power supply and amplifier w/LEMO connector, 110V
Part # 4022: SoundConnect microphone power supply and amplifier w/LEMO connector, 220V