SoundConnectTM 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.
Specifications
| 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 |
