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Graham-Patten’s most cost-effective digital mixer offers powerful performance in a sleek and compact design that integrates a control console and electronics chassis in a single table-top unit. Like the high-end mixer models, the D/ESAM 230 offers programmable device assignments, industry standard ESAM II and D/ESAM IV protocols, simultaneous support for both analog and digital inputs, programmable audio delay, multi-band parametric EQ, full monitoring and metering, and four digital and analog output buses. Features now standard on the D/ESAM 230 that were once available only on the high-end D/ESAMs include send outputs, monitor sub-mixer, fader range, user configuration registers, and D/MEM write protection.

Features include:

• Analog and digital input architecture
• Familiar user interface
• Editor interface
• Expandable architecture
• D/MEM register storage & recall

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Specifications:

Audio Inputs	Up to 24 input channels, analog and digital mixed.
Machines	10; A through H, Aux and R
Audio Outputs	Program: 4 Analog, 4 Digital (2 sets) Monitor: 2 Analog Send: 2 Digital
Equalizer	Multi-band parametric with shelving filters and notches
Audio Delay	5 Frames NTSC; 4 Frames PAL, per mixing channel
Tone Generator	Internal, fixed frequency, editor and manual control
Phase Reversal	180° Applied to any channel
Timing Input	Composite sync or video (NTSC/PAL) 2 BNC (Loop-through)
Sample Rate	48kHz (NTSC/PAL) locked to TV field
Transion Rates	0 - 999 Frames
Transion Resolution	Field accurate, 1500 steps per second
D/MEM Registers	Standard: 40 D/MEM Registers plus 5 user configurations, battery back-up
Editor Protocol	ESAM II and D/ESAM IV
Meters	4 Channel VU or PPM LED 28 segment bargraph, with adjustable peak indicators.
Accuracy	Internal audio data transfers: 24 bit precision Internal calculations: 56 bit precision
Analog Program Outputs
Coupling:	DC - Active balanced
Source Impedance:	<30Ω
Level:	+22dBu max. into 600Ω or greater
S/THD+N @ -20 dBFS:	>70dB
S/THD+N @ 0 dBFS:	>90dB
Signal to Noise:	>100dB @ Digital silence
Frequency Response:	+0 -0.2dB 15kHz-20kHz ± 0.1dB 20Hz-15kHz (Typical)
Crosstalk @ 0 dBFS:	>94dB @ 1kHz
Digital Program Outputs
Number	2 Outputs: Program 1&2 (AES Digital Format, 20/24 bit) 2 Outputs: Program 3&4 (AES Digital Format, 20/24 bit)
Digital Send Outputs
Number	1 Output:Program 1&2 (AES Digital Format, 20 bit)
Audio Connectors	Analog (XLR or 1/4" phono jack), Digital (BNC)
Interface Connectors	Serial 9-pin D sub-min (RS-422) General Purpose (GPI) 9-pin D sub-min
Dimensions
Control Panel/ Electronic Chassis	16.875"(42.86cm) Wide x 16.25"(41.28cm) Deep Unit is 5.5"(13.97cm) High at rear, 1"(2.54cm) at front Allow 2"(5.08cm) for cabling at rear
Power
Voltage Requirements	100 - 240 VAC
Frequency	50 - 60 Hz
Power Consumption	50 Watts
Operating Temperature	10 - 40°C
Note: 0dBFS = digital clipping.
0dBu = 0.775V rms

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Additional resources:

DESAM Help Files

D/ESAM-230 Brochure