Model:
729744X2
SKU:
729744X2
Availability:
In Stock
$1,869.99
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The Solid State Logic PURE DRIVE QUAD 4-Channel Preamplifier is a professional audio device featuring four SuperAnalog PureDrive Mic Preamps with support up to 192 kHz.

The Solid State Logic PURE DRIVE QUAD 4-Channel Preamplifier is a professional audio device featuring four SuperAnalog PureDrive Mic Preamps with support up to 192 kHz. It includes a USB-C Female Input/Output, four combo XLR-1/4" inputs, and various audio and digital I/O options. The unit offers multiple impedance settings for different input types, including mic, line, and high-impedance sources. Specifications include gain ranges from 4.8 to 65.5 dB for mic inputs, with precise matching accuracy.

Noise floor measurements are below -97.3 dBu for mic inputs, while line inputs show a noise floor of -89.7 dBu. The device also provides detailed frequency response and THD+N performance metrics, along with crosstalk specifications and maximum input level data.

  • Compatibility: Not Specified by Manufacturer
  • USB I/O: 1 x USB-C Female Input/Output
  • Audio I/O: 4x Combo XLR-1/4" Input 4x XLR 3-Pin Aux/Line Output 1x DB-25 Line Input
  • Digital I/O: AES/EBU Outputs: 2 x XLR (Male) ADAT Output and ADAT Link In: 2 x Optical TOSLINK Port Wordclock Input and Output: 2 x BNC
  • Impedance: Mic In to Insert Send Input: 400, 600, 1200, or 12,000 Ohms Output: 70 Ohms Line In to Insert Send: 22 Kilohms Hi-Z to Insert Send: 1 Megohm Insert Return to ADC: 10 Kilohms

Specifications

AC Input Power
100 to 240 VAC, 50 / 60 Hz
Audio I/O
4x Combo XLR-1/4" Input 4x XLR 3-Pin Aux/Line Output 1x DB-25 Line Input
Box Dimensions (LxWxH)
21.2 x 18.3 x 8.7"
Compatibility
Not Specified by Manufacturer
Crosstalk
Mic In to Insert Send Aggressor 15 dBu 50 Hz In, 5 dB Gain, 20 dBu Out; Adjacent Channels 150R Terminator, 35 dB Gain: < -108 dB Aggressor 15 dBu 1 kHz In, 5 dB Gain, 20 dBu Out; Adjacent Channels 150R Terminator, 35 dB Gain: < -105 dB Aggressor 15 dBu 10 kHz In, 5 dB Gain, 20 dBu Out; Adjacent Channels 150R Terminator, 35 dB Gain: < -81 dB Insert Return to ADC 23.9 dBu In, 20 Hz to 20 kHz, 1 Channel Driven, All Other Channels 150R Terminated: < 105 dB 23.9 dBu In, 1 kHz, 1 Channel Driven, All O
Digital I/O
AES/EBU Outputs: 2 x XLR (Male) ADAT Output and ADAT Link In: 2 x Optical TOSLINK Port Wordclock Input and Output: 2 x BNC
Dimensions
19 x 11.92 x 3.47" / 48.26 x 30.28 x 8.81 cm (Chassis Only)
Dynamic Range
Insert Return to ADC: 119 dB Typical
Frequency Response
Mic In to Insert Send: 20 to 20 kHz, Any Gain (±0.2 dB) Insert Return to ADC: ±0.035 dB, -3 dB Low Roll-Off <5 Hz
Gain
Mic In to Insert Send: 4.8 to 65.5 dB ± 0.1 dB Gain Matching: < 0.08 dB Line In to Insert Send: -0.4 to 30 dB ± 0.1 dB Gain Matching: < 0.08 dB Hi-Z to Insert Send: 10.9 to 41.3 dB ± 0.1 dB Gain Matching: < 0.08 dB
Impedance
Mic In to Insert Send Input: 400, 600, 1200, or 12,000 Ohms Output: 70 Ohms Line In to Insert Send: 22 Kilohms Hi-Z to Insert Send: 1 Megohm Insert Return to ADC: 10 Kilohms
Maximum Input Level
Mic In to Insert Send: >21.5 dBu (At Minimum Gain) Line In to Insert Send: 26.5 dBu (At Minimum Gain) Hi-Z to Insert Send: >15.5 dBu (Unbalanced, Minimum Gain)
Mobile App Compatible
No
Mounting
Side: 2x Rack Ears
Package Weight
18.835 lb
Power Consumption
27 W
Power Source
AC Input (Included)
USB I/O
1 x USB-C Female Input/Output
Weight
13 lb / 5.9 kg
A/D Conversion
Insert Return to ADC ADC Line Up: 24 dBu
EIN
Mic In to Insert Send: 65 dB, A-weighted, 20 Hz to 20 kHz, 150R Termination: -130 dBu Typical, -129 dBu Nominal
Filter
Trim and High-Pass Filter (HPF) Trim Gain Matching: < 0.04 dB HPF Frequency Tolerance: 5%
Noise Floor
Mic In to Insert Send: < -97.3 dBu Line In to Insert Send: -89.7 dBu Typical Hi-Z to Insert Send: 11 dB, Unweighted, 20 Hz to 20 kHz, 150R Termination: <86 dBu Typical
THD+N
Mic In to Insert Send: < -92 dB / 0.0025 % (17 dB, 20 dBu out, 1 kHz) Line In to Insert Send: 0 dB, Unweighted, 20 Hz to 20 kHz, 150R Termination: -89.6 dB / 0.0033% Typical Insert Return to ADC: -105 dB / 0.0005% Typical
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