The 1073SPX-D seamlessly integrates a complete 1073 channel strip with a robust digital audio interface. USB and ADAT digital connections transform the 1073SPX-D into a versatile one-stop solution for recording, mixing, and monitoring in any studio, live sound or mobile recording setup.

General Specification

• Genuine 1073 transformer-coupled microphone preamplifier / EQ circuit, in a single 1U 19″ rack-mount enclosure
• 2x Balanced Analogue Monitor XLR Line Outputs
• 1x Balanced TRS Headphone Output
• 8x ADAT Digital Inputs & 8x ADAT Digital Outputs via TOSLINK Connection
• Exclusive Neve Marinair transformers used on input and output stages
• USB 2.0 B -Type port for direct connection to Mac or PC
• Class Compliant – Core Audio/ASIO
• Front & rear Mic & Line inputs and front DI input
• Switchable +48v Phantom Power, Hi/Lo impedance, -20dB pad and DI ground lift
• Switchable Phase and EQ in/out
• Pre/Post-EQ insert send/return loop
• 7-stage LED signal level meter –  mic/line/DI input-stage level, EQ-stage level or output-stage level up to +24dB
• Output level control -inf>+5dB range
• External multi-voltage PSU with locking 5-pin XLR Connection
• Power – +/116Vdc 2A 230V 20mm & 48Vdc, 250mA 230Vm 20mm

Preamp Specification

• Microphone Input: Gain +80db to +20dB in 5dB steps.
• Line Input: Input impedance 10kΩ, gain +20dB to -10dB in 5dB steps
• DI Input: Input impedance 2M Ohms (PAD off) / 200K Ohms (PAD on) Gain +80dB to +20dB in 5dB steps

EQ Specification

• High Frequency: Smooth +/-16dB fixed frequency shelving at 12kHz
• Low Frequency: Smooth +/-16dB shelving with selectable frequencies of 35Hz, 60Hz, 110Hz & 220Hz
• Mid Frequency: Smooth +/-18dB peaking, fixed ‘Q’ with selectable centre frequencies of 0.36kHz, 0.7kHz 1.6kHz, 3.2kHz, 4.8kHz & 7.2kHz
• High Pass Filter: 18dB per octave slope, switchable between 50Hz, 80Hz, 160Hz & 300Hz

Audio Performance

• Output: Maximum output is >+26dBu into 600Ω, transformer balanced and earth free.  – Output Impedance 75Ω @1kHz
• Distortion: Not more than 0.07% from 50Hz to 10kHz at +20dBu output (80kHz bandwidth) into 600Ω.
• Freq Response: ±0.5dB 20Hz to 20kHz, -3dB at 40kHz. EQ Out.
• Noise: -82dBu at all line gain settings (22Hz to 22kHz bandwidth)
• EIN: Better than -125dBu @ 60dB gain.

Monitor Output Specification

• Maximum output level : +20dBu

Headphone Output Specification: (600 Ohm load)

• Maximum output level : +20dBu
• Frequency Response: 20-20kHz +/- 0.5dB
• Distortion (THD +N): <0.005%
• Noise floor: -90dBu

A/D Specification

• Maximum input level : >+26dBu
• Dynamic Range: 119dB
• Noise (THD +N): <100dBFS
• Distortion: <0.002%

D/A Specification

• Maximum Output level: +26dBu
• Dynamic Range: 117dB
• Noise (THD +N): <91.5dBu
• Distortion: <0.001%