• 47240_TOA-D-921E-Digital-Mixer-Two-Channel-Mic_Line-Input-Module_ALT01sqr
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TOA D-921E Digital Mixer Two-Channel Mic/Line Input Module

TOA D-921E Digital Mixer Two-Channel Mic/Line Input Module

SoundPro Item: 47240 | Part Number: D-921E

$341.00
$421.00 $341.00
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MSRP: $421.00 | MAP: $341.00

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  • Two-Channel Mic/Line Inputs Allow Flexible Source Connectivity In Installed Systems
  • Electronically-Balanced Inputs Reject Common-Mode Noise On Long Cable Runs
  • Removable Terminal Block Connectors Simplify Field Wiring And Servicing
  • Input Sensitivity And Phantom Power Controlled From Host Main Frame
  • Ground Lift Switch Eliminates Hum From Ground Loop Interference
  • Pre-Coated Steel Plate Panel Provides Durable, Low-Gloss Finish For Rack Integration
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The TOA D-921E is a two-channel microphone and line input module built for integration with the TOA D-901 Digital Mixer and compatible TOA main frames. Designed for installed sound environments, it gives system integrators a modular path to expand analog input capacity without external preamplifiers or additional signal processing hardware. Its electronically-balanced inputs accept both microphone and line-level sources, making it suitable for boardrooms, houses of worship, conference centers, and any installed AV system built around the D-901 platform.

The module's 24-bit A/D converter with 48 kHz sampling preserves audio fidelity across the full 20 Hz to 20 kHz range at plus or minus 1 dB, while a dynamic range exceeding 100 dB and total harmonic distortion below 0.05 percent meet the demands of professional installed audio. Phantom power availability and input sensitivity are managed from the host main frame, keeping the module itself compact and installation-ready. The removable terminal block connectors simplify field wiring and replacement without soldering.

For integrators working within TOA's modular ecosystem, the D-921E provides a straightforward, reliable expansion option. Its pre-coated steel plate panel and compact form factor allow clean rack integration alongside other D-901 series modules, maintaining system consistency across large or multi-zone installations.

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Specifications

Audio
Input Channels
2 (Mic/Line switchable)
Mic Input Sensitivity
−50/−36 dB
Mic Input Impedance
4.7 kΩ
Line Input Sensitivity
−10/+4 dB
Line Input Impedance
10 kΩ
Input Balancing
Electronically balanced
Connector Type
Removable terminal block, 3-pin
Phantom Power
15 V (D-901, DP-K1, D-2008SP, optional); 12 V (SX-2100AI, optional)
A/D Converter
24-bit
Sampling Frequency
48 kHz
Frequency Response
20 Hz - 20 kHz, ±1 dB (+4 dB input)
Dynamic Range
100 dB or more, IHF-A weighted (+4 dB input)
Total Harmonic Distortion
0.05% or less (+4 dB input)
Dimensions
Width
35 mm
Height
119.5 mm
Depth
178.4 mm
Weight
Unit Weight
140 g
Construction
Panel Material
Pre-coated steel plate
Panel Color
Black
Panel Gloss
30% gloss
Included Items
Removable Terminal Plug (3-pin, preinstalled)
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