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DM 8350

General-purpose Microphone Amplifier with Adjustable Gain
Description
  • General-purpose microphone amplifier.
  • Adjustable gain 10 → 40 dB.
  • Provides easy “sensitivity-matching” between low-output microphones and transceivers requiring high input level.
  • Small, cylindrical amplifier housing.
  • Phantom power supply through AF output cable.
  • Supply voltage: 5 – 15 V DC.
  • Nominal AF load impedance: 600 Ω.
  • EMC-protected.
Specification
Electrical
Power Supply 5 – 15 V DC (To be supplied from radiotelephone or hands-free kit (Phantomsupply via the microphone cable)
Specifications given @ 10 V DC
Model DM 8350
Type Microphone amplifier
Impedance Input impedance : Approx. 2 kΩ
Output load impedance: Nom. 600 Ω
Frequency Response 0.2 ±20 kHz (See diagram below)
Max. Input 6 mVRMS at max. sensitivity of microphone: -40 dB at 1 kHz rel. 1 V/Pa
Max. Output 600 mVRMS in 600 O (Before clipping occurs)
Current Consumption (Amplifier only) : Approx. 2 mA
Environmental
Operating temperature range -30 °C to +70 °C
Storage temperature range -40 °C to +80 °C
Mechanical
Connection(s) Supplied open-ended
Materials POM
Cable 0.3 m 1-wire with shield
Historic Brand Amphenol Procom
Dimensions 12 x 59 mm / 0.47 x 2.32 in.
Ordering Codes
Model Product No.
General-purpose Microphone Amplifier with Adjustable Gain 270000064
Additional Information
Functional Diagram

Adjustment Screw

Typical response curve

EU and UK Declaration of Conformity

Hereby Amphenol Procom declare that the product type DM 8350 is in compliance with EU Directive 2014/30/EU and
the UK Electromagnetic Compatibility 2016 (S.I. 2016 No. 1091).
The full text of the Declaration of Conformity is available at:

https://s3.us-west-2.amazonaws.com/catsy.1080/Declaration-of-Conformity-DM8350.pdf

PROCOM A/S reserves the right to amend specifications without prior notice
PROCOM A/S • Smedetoften 12 DK 3600 Frederikssund • Denmark
Generated : 2026-06-26 Version 1