SoundConnect 2 Listen – Mic power supply – Bộ cấp nguồn mic

Specifications

INPUTS
Line Input
Connector: 1⁄4” Tip-Ring-Sleeve (TRS) jack, balanced and unbalanced
Input Impedance: 200kΩ in parallel with ≤ 500pF
CMRR at 1kHz: ≥65dB at 0dB gain; ≥100dB at +40dB gain
Maximum input voltage: 80V RMS

BNC Mic Input
Connector: BNC Connector, compatible with SCM 2/3 microphones and accelerometers
Input Impedance (bias off): 200kΩ in parallel with ≤ 500pF
Bias Supported: Constant Voltage, Constant Current (IEPE), or none
Constant Voltage / Electret Bias: Open Circuit Voltage: Preset to+10VDC (Each channel internally adjustable from 100mV to 12VDC); Resistive Feed: 7.5kΩ or 2.2kΩ selections for each channel via front panel or USB (+/- 1%);
Constant Current / IEPE Bias: Open Circuit Voltage: +22VDC; Continuous Output Current: 4mA and 10mA, selections for each channel via front panel or USB ±5%

LEMO (Polarized) Mic Input
Connector: Lemo 1B series, type 307 receptacle. Compatible with pre-polarized and condenser microphones
Bias Voltage: +200VDC, Enabled or disabled via front panel or USB. Stability: ±0.5%
Bias noise: ≤100μV unweighted 20kHz BW; spectra ≤1μV 3.16Hz BW
Output Impedance: 20MΩ
Headphone Test Setup using SoundConnect 2
Preamplifier Supply Voltage: ±15VDC; maximum supply current: 25mA

SIGNAL AMPLIFICATION
Gain: -20dB to +40dB in 10dB steps
Tolerance: ±0.1dB from -20 to +20dB; ±0.2dB +30dB & +40dB
Flatness, 20Hz – 20kHz: ±0.05dB
Frequency Response: ≤0.8Hz to ≥140kHz, -3dB
SNR (Noise – RTI, 20kHz BW unweighted, all filters off, output gain +6dB): -20dB: ≥90dB; 0dB: ≥120dB; +20dB: ≥110dB; +40dB: ≥90dB

SIGNAL FILTERING (each channel is independently configurable)
High Pass Filters: Frequencies: -1dB at 1Hz, 10Hz, 20Hz, 100Hz; Butterworth, 40dB/decade (2nd Order)
Low Pass Filters: Frequency: -1dB at 22.4kHz or 120kHz, Butterworth, 40dB/decade (2nd Order)

OUTPUTS
Balanced and unbalanced: all outputs are short circuit and over voltage protected
Gain: 0dB or +6dB, selections via front panel or USB to match various balanced input stages
THD: -20dB to -10dB: ≤0.01%; 0dB to +20dB: ≤0.0006%; +30dB: ≤0.001%; +40dB

PHYSICAL
Dimensions: 4.375” (111mm) W x 3.5” (89mm) H x 8.25” (210mm) D
Weight: 810g
Power: 24 VDC, 700mA power input (Supplied with regionally approved 110/220V, 50/60 Hz power adapter)

OPTIONAL ACCESSORIES
Rackmount shelf with mounting points for ¼ rack width Connect series products. Part # 4901