X-R microphone capsule amplifier

Description

The X-R microphone capsule amplifier

The X-R microphone capsule amplifier is a microphone “body” that mounts in a standard mic clip (included), and requires +9V to +52V phantom power.  The capsule output is on pin 3 (negative polarity), with an impedance-balanced output on pin 2.  Thus, capsule amplifier will yield positive polarity when connected to a balanced input amplifier via a standard XLR microphone cable.  When used into an unbalanced input (as with some portable phantom power supplies), pin 3 should be connected as the signal lead.  The X-R capsule amplifier is also available with a transformer coupled or electrically balanced output upon request; please indicate in order comments.  The electrically balanced output will increase output level by 6dB, and has current draw of 1.6mA.

The X-R microphone capsule amplifier may be supplied with a female, male, or right-angle male RCA input.  Right-angle and male-male adaptors are also available.

Two X-R capsules may be connected with the RCA Y adaptor, which will mix the two signals from the capsules.  When used with an RCA extension cable, the Y adaptor mixes two discrete sources into a single microphone channel.  Also, the Y adaptor may be used to blend an omnidirectional capsule with a directional capsule.  This technique is especially useful with the acoustic low-pass filter, yielding a hybrid pattern with a directional high-frequency response and an omnidirectional low-frequency response.

The capsule amplifier includes a standard 5/8″-27 mount microphone clip.

X-R microphone capsule amplifier specification:

Signal output on XLR pin 3 (reverse polarity), for positive polarity when connected to balanced input amplifier.

Phantom Power Input: +9V to +52V
Current (with capsule), impedance-balanced or transformer-coupled output: 1.0mA
Current (with capsule), electrically balanced: 1.6mA

Capsule Power Output: +10V across 6.8KΩ

Input Impedance: 6KΩ
Output Impedance: 150Ω
Recommended Preamp Input Impedance: 1.5KΩ or higher

Maximum Input Level, 1kHz @ 1% THD: +10dBV
Total Harmonic Distortion, 1kHz @ 0dBV: 0.007%
Frequency Response: 20Hz to 20kHz (-0.3dB @ 20Hz)
Noise: -121dBV unweighted, -124dBA

Weight:  68g (2.4oz)
Dimensions:  95mm x 19mmø (3 3/4″ x 3/4″ø)