- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is Carnhill transformer balanced and floating.
- Line input impedance: 10K Ohms bridging, Carnhill transformer balanced and floating.
- DI input impedance: Greater than 2 Megohms, unbalanced.

A 3 unit rack enclosure housing up to two 80 Series modules when outboard operation is preferred. It features illuminated phantom power switches and faders on every slot, as well as the same D.I. inputs found in the acclaimed ´73JR.

- Maximum input level: Over +22 dBu.
- Maximum output level: Over +26.5 dBu into 600 ohms.
- Self-Noise: Less than -75dBu 20Hz-20Khz. -80dBu A-weighted.
- THD+N (50Hz- 20Khz): not engaged, less than 0.07% at +20dBu.
- Frequency response, COMPRESS and LIMIT OUT, +- 0.5dB, 15Hz- 30Khz.
- Input impedance: 10Kohms, transformer balanced and floating.

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is transformer balanced and floating.
- Line input impedance: 10KOhms bridging, transformer balanced and floating.
- Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for low gain ribbon mics. Input is transformer balanced and floating.
- Line input impedance: 10KOhms bridging, transformer balanced and floating.
- Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for low gain ribbon mics. Input is transformer balanced and floating.
- Line input impedance: 10KOhms bridging, transformer balanced and floating.
- Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.

- Input Impedance: 10 Kohms bridging, transformer balanced and floating.
- Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a 600 ohms load.
- Maximum output: Greater than +26dBu into 600 Ohms.
- THD: Less than 0.025% at 1Khz, less than 0.05% at 100Hz
- Maximum gain: 6 dB
- Power consumption: Less than 85 mA per rail at +-16VDC.

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum.
- Higher gain positions gradually have greater impedances, optimum for low gain ribbon mics.
- Input is transformer balanced and floating.
- Line input impedance: 10KOhms bridging, transformer balanced and floating.
- Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for low gain ribbon mics. Input is transformer balanced and floating.
- Line input impedance: 10KOhms bridging, transformer balanced and floating.
- Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is transformer balanced and floating.
- Line input impedance: 10KOhms bridging, transformer balanced and floating.
- Output impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is transformer balanced and floating.
- Line input impedance: 10K Ohms bridging, transformer balanced and floating.
- DI input impedance: Greater than 2 Megohms, unbalanced.

Designed for situations where less track counts are enough, but added flexibility is needed. Its 4 auxiliary sends allows cue mixes, analog reverb and fx sends, parallel compression, etc, all in the analog domain. It also has balanced points on every input and output for outboard gear integration. 4 transformers and a class A output stage ensures a correct vintage sound.

- Channel Input Impedance: Greater than 20 Kohm.
- Maximum channel input level: Greater than +26dBu
- Maximum insert return input level: Greater than +26dBu
- Maximum insert send level: Greater than +27dBu, able to drive 600 ohm.
- Maximum output level: Greater than +26dBu into 600ohm.
- Frequency response: ±0.5dB 20Hz to 20kHz

- On Slot Technology
- Maximum audio rails current: 1.6A per rail, or 400mA per rail per slot, whatever is reached first.
- Maximum phantom power current: 140mA.
- Operating voltage: 100-240 VAC.

- Desktop-format monitor controller with classic looks
- Designed for the studio that needs enhanced, mastering-grade stereo monitoring capabilities
- All functions on high-quality illuminated engraved buttons
- 64-step relay ladder attenuation for master level control in 1dB steps
- 3 pairs of +4dBu balanced analog inputs (input 3 is configurable for -10dBu unbalanced signals)

-Mastering-grade stereo monitoring for project/home studios
-Double-wide 500 Series module — requires compatible 500 Series chassis
-3 stereo inputs, including rear-chassis connections
-Front-panel stereo Neutrik Combo input
-Bluetooth wireless input (compatible with AAC, APTX, and SBC files)
-1 stereo speaker output
-1 high-current headphone output
-20dB DIM, MUTE, and MONO functions

- All functions on high-quality illuminated engraved buttons
- Configurable for 5.1 or stereo
- 4 pairs of balanced +4dBu analog inputs in Stereo mode
- 1 x 5.1 input plus an additional stereo +4dBu analog input
- 1 pair of unbalanced analog inputs on RCA connectors
- Wolfson WM8741 24-bit/192kHz DAC selectable between AES/EBU, S/PDIF, and Toslink

- Microphone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for lo gain ribbon mics. Input is transformer balanced and floating.
- Line input impedance: 10K Ohms bridging, transformer balanced and floating.
- DI input impedance: Greater than 2 Megohms, unbalanced.
- Output impedance: Less than 75 Ohms, transformer

- True Stereo operation on single controls with matched gain cells for extremely precise left/right tracking and nearly zero offset in between channels. Compression tracking works in Oxford mode (highest signal takes over compression opposed to summing left and right channels).
- Carnhill based, transformer coupled balanced inputs and outputs for added character and vintage vibe.