CMR

Description

The CMR is an amplifier for use in direct combination with MK capsules and pocket transmitters.

It is designed to draw only approx. 2-4% of the power required by the CMC 6. No 48V phantom power is necessary; instead only a supply voltage/current of 4V/1mA is required, as is generally provided by most pocket transmitters for driving electret capsules.

Practice

The CMR allows an MK capsule to be used with pocket transmitters. As with electret microphones, only a very low supply current is required, yet the CMR offers low output impedance and good immunity to interference.
The biggest benefit of all, however, is SCHOEPS' well-known sound quality, which this amplifier delivers fully.

The robust connecting cable is reinforced with Kevlar fibers. It remains flexible at low temperatures, and does not twist.

The CMR can be used with devices which provide 1 mA for a microphone at 4 Volts or higher. The current list of compatible devices can be viewed at the compatibility chart in the downloads below.

Technical Specifications

Sensitivity	ca. 4.5 dB less (60%) than the corresponding capsule with CMC 6
Maximum output voltage	0.9 V (-1dBV) with 20 kΩ load 0.56 V (-5dBV) with 2 kΩ load
Low cut filter	-
Minimum recommended load impedance	5 kΩ
Output impedance	at 1kHz: 15 Ω
SCHOEPS RFI Shield	-
Powering standard / Valid range	4 -10 V
Current consumption	1 mA
Output	Custom connector, analog, 1 channel, unbalanced
Connector	assembled according to customer's specification
Length of the output cable	Standard length: 2m; other lengths possible
Diameter of the output cable	3 mm
Length	38 mm
Diameter	20 mm
Weight	25 g
Surface finish	matte gray (g) or custom color

Downloads

CMR und RCMR A microphone amplifier for pocket transmitters Product sheets	de | en
Indoor Location Recording Overview of recommended microphones and accessories for Indoor location sound Product sheets	en
Compatibility chart list of the CMR compatible pocket transmitters User guides, manuals	en