Sound Devices 664 6-channel Portable Production Mixer

Features

Six high-bandwidth, low noise microphone preamplifiers with phantom, limiters, high-pass, pan, and direct outputs per channel.
Four output buses, Left, Right and Aux 1, Aux 2; transformer-balanced for freedom from ground loops; multiple output connectors, including dual multi-pin.
Built-in production recorder, records all inputs and output buses: 10 tracks total. With CL-6 attached: 16 tracks total.
Broadcast WAV recording to dual memory card slots, CF and SD.
Record different track combinations and to each card type.
High-precision, Ambient Recording-based time code generator/reader with auto-recharging of internal TC battery.
Time code compare tool to measure offset from internal and external time code.
Quick, intuitive interface via sunlight readable, transflective LCD menu control.
Main controls on dedicated knobs and switches.
Two AES42/AES3 digital inputs (input connectors 1 and 6).
AES3 output selection, up to eight channels of AES out (XLR, multi-pin).
Expanded return monitoring capabilities, with three camera returns.
Dedicated communication circuit (PL).
Built-in slate microphone and external slate microphone input connector.
Powered by AA-battery x5 or isolated (floating) external DC, 10-18V.
Metalized, gasketed carbon-fiber chassis panels for light weight and durability.

Specifications

Frequency Response
20 Hz to 50 kHz, +/- 0.5 dB

THD + Noise -
0.09% max (50 kHz, +18 dBu at line out, fade fully up)

Equivalent Input Noise -
-126 dBu (-128 dBV) maximum. (22 Hz - 22 kHz bandwidth, flat filter, trim control fully up)

Inputs
XLR Mic : active-balanced for use with <=600 ohm mics, 4k ohm actual; 12V or 48V phantom power, 10 mA max
XLR AES : AES3 or AES42 (10 V power), SRC
XLR Line : active-balanced for use with <=2k ohm outputs, 10k ohm actual TA3 Line (with CL-6): active-balanced for use with <=2k ohm outputs, 10k ohm actual
RTN A,B,C (3.5 mm/10-pin) : unbalanced stereo for use with <=2k ohm outputs, 30k ohm actual

Maximum Input Level
XLR Mic : 0 dBu (0.78 Vrms)
XLR Line : +40 dBu (80 Vrms)
RTN A,B,C (3.5 mm/Multi-pin) : +24 dBu (12.4 Vrms)

High-Pass Filters -
Sweepable 80 Hz to 240 Hz, 12 dB/oct at 80 Hz, 6 dB/octave at 240 Hz

Input Limiters -
Individual limiters on both trim and fader stages, +16 dBu threshold, 20:1 limiting ratio, 1 mS attack time, 500 mS release time

Link I/O -
Unbalanced stereo for linking to MixPre, 302, 442, 552, and 664; 2k ohm impedance

Maximum Gain
Mic-In-to-Line-Out : 93 dB
Mic-In-to-Aux-Out, -10 Out : 79 dB
Line-In-to-Line-Out : 39 dB

Output Type
Line : transformer-balanced for use with >=600 ohm inputs, 100 ohms
-10 : transformer-balanced for use with >=10k ohm inputs, 3.2k ohm
Mic : transformer-balanced for use with >=600 ohm inputs, 150 ohms
TA3 Mic/Line : active-balanced, pin-2 and 3 driven, for use with >=3k ohm inputs, 1k ohm TA3 Direct Outs Mic/Line : active-balanced, pin-2 and 3 driven, use with >=3k ohm inputs, 1k ohm
Tape Outs (3.5 mm and TA3-type) : unbalanced, stereo, use with >=6k ohm input, 1.8k ohm actual
Headphones (3.5 mm and 1/4") : unbalanced, stereo, use with 8-2k ohm headphones, 50 ohms

Line Output Clipping Level -
(1% THD) 20 dBu minimum with 10k load

Maximum Output Level
Line : +20 dBu (7.8 Vrms)
-10 : +6 dBu (1.5 V rms)
Mic : -20 dBu (0.078 Vrms)
Tape Outs : +6 dBu (1.5 Vrms)

Output Limiters -
Affects analog output. Threshold selectable from +4 dBu to +20 dBu, 1 dB steps, 20:1 limiting ratio, 1 mS attack time, 500 mS release time.

Recording Tracks
10 tracks (6 inputs, 4 output buses);
16 tracks (12 inputs, 4 output buses) with CL-6

A/D -
24-bit, 114 dB, A-weighted dynamic range typical; 44.1 kHz, 47.952 kHz, 48 kHz, 48.048 kHz SR

Digital Outputs -
AES3 transformer-balanced, in pairs; 1-2 XLR-L, 3-4 XLR-R, 5-6, multi-pin 1, 7-8, multi-pin 2, 110 ohm, 2 V p-p, AES and S/PDIF compatible

Recording Storage Type -
Secure Digital High Capacity (SDHC), Secure Digital (SD), CompactFlash (CF), FAT32 formatted, will format memory cards on-board, WAV (Broadcast Wave File format) polyphonic

Sample/Timecode Accuracy -
+/- 0.2 ppm (0.5 frames per 24 hours)

Timecode and Sync
Modes Supported : off, Rec Run, Free Run, 24h Run, External
Frame Rates : 23.976, 24, 25, 29.97DF, 29.97ND, 30DF, 30ND
Accuracy : Ambient generator, 0.5 frame in 24 hr
Time Code Input : 20k ohm impedance, 0.3 V - 3.0 V p-p (-17 dBu - +3 dBu)
Time Code Output : 1k ohm impedance, 3.0V p-p (+12 dBu)
Word In/Out : square wave; 10k/75 ohm, 1-5V p-p input; 75 ohm, 3.3V p-p output, at SR

Power
External : isolated 10-18 V on locking 4-pin Hirose connector, pin-4 = (+), pin-1 = (-).
Internal : accepts 5 AA-sized (LR6) batteries, 1.2-1.5 V nominal (NiMH rechargeable compatible).

Environmental -
Operating : -20oC to 60oC, 0 to 90% relative humidity; (non-condensing) Storage: -40oC to 85oC

Dimensions and Weight
Dimensions : 5.3 cm x 32 cm x 19.8 cm (H x W x D) (2.1 x 12.6 x 7.8 in)
Weight : 2.15 kg (4.75 lbs)