DM481

8 Channel Rack Mountable Mixer

DISCRETE 8-CHANNEL RACK-MOUNTABLE MIXER

Where space is tight, this easily manageable rack-mountable 8-channel mixer with ultra low-noise mic preamp gives you flexible mixing and high/low audio control. Phantom power is available on each and every microphone input adjustable through simple DIP switches. Also included on each input channel: A variable tone control allowing accurate adjustment of high and low frequency audio, a peak indicator to help monitor incoming signal levels to avoid distorted audio, and a mute switch for immediate muting and unmuting of incoming signals. Output is sent either through a 3-pin phoenix connector or pre-fader RCA output. An additional auxiliary input via RCA jack is also available to further expand the DM481’s operation.

DM481-3
Balanced Main Output

Asystems' DM481 features a mono balanced output through a 3-pin euroblock connector. These can be wired to external amplifiers or to any other audio device with line-level inputs.

DM481-4
Low-noise preamplifiers

This amazing rack-mountable 8-channel mixer offers phenomenally low-noise pre-amplifiers for use with microphones.

DM481-2
RCA input and output

The DM481 includes a versatile RCA input connection for direct injection of external signals. In addition to this, the unit has a versatile RCA output. These connectors are ideal for linking multiple DM481 units.

DM481-1
Individual phantom power

Each of the DM481’s euroblock connectors can have phantom power applied to them for use with condenser microphones.

  • 8 mic/line inputs through 3-pin euroblock and 1/4” phone jack connectors
  • Ultra low-noise preamp circuitry offering up to 62 dB gain (Mic In)
  • Mute control, clip indicator and tone control on each channel
  • Pre-fader out and aux in for connecting additional units to maximize flexibility
  • Individual +48V phantom power on every channel
  • Unbalanced 3-pin euroblock master output connector
  • Built-in power supply (no bulky power adapter)
  • Incredible 1-unit space-saving design
Front Panel

The front panel controls of the DM481 include level controls for each of the individual input channels as well as a master level control. Each channel also features an adjustable tone control and mute button. A peak LED is also included on each channel to help monitor excessive signals. And, as per usual, the front panel features a nifty little power switch.

Rear Panel

Inputs
Total Channels 8
Mic Input / Line Input 8 x 3-pin Euroblock & 8 x 1/4” TS
Aux Bus In RCA
Outputs
Main Out 3-pin Euroblock (unbalanced)
Pre-Fader RCA
THD+N
THD (Any output, 1kHz @ + 14 dBu, 20Hz to 20 KHz) 0.01%
Metering
Channel Clip Indicator +6dBu
Phantom Power Supply +48V DC
Phantom Switches DIP
Frequency Response (Mic input to any output)
20Hz to 20KHz +0/ -1 dB
20Hz to 60KHz +0/ -3 dB
S/N ratio, ref to +4 106 dB
Microphone Preamp E.I.N (150 ohm terminated, max gain) <-129.5 dB
CMRR (1 KHz @ -60 dBu, Gain at maximum) 80 dB
Maximum Level
Mic Preamp Input +10 dBu
All Other Input +22 dBu
Main Output +28 dBu
Impedance
Mic Preamp Input 1.4 K ohms
Unbalanced Line in 12 K ohms
Aux Bus In 10 K ohms
Main Output 100 ohms
Pre-Fader Out 100 ohms
Power Requirement (depends on region) 100-120VAC, 220-240VAC 50/60Hz
Dimensions (WxHxD) 483 x 44 x 165 mm (19″ x 1.73″ x 6.49″)
Net Weight 3.2kg (7.1 lbs)

User’s Manual (English / Español): um_DM481_en_es.pdf
Manuel d’utilisation (Français): um_DM481_fr.pdf
Data Sheet (English): ds_DM481_en.pdf