Advanced Audio Microphones CM-87
Multi-Pattern Condenser Microphone
The CM-87 is a large diaphragm, multipattern condenser microphone based on the Neumann U87. It is manufactured in China, initially by Feilo (through late 2008).
The CM-87 utilizes a dual-diaphragm 6-micron capsule and class A amplifier design. The FET is a 2SK170, known for low noise and high gain.
The circuit uses discrete components on a single, two-sided PCB. (A photo of the rear side of the board is up on our Flickr site.)
Switches on the mic body provide a high pass filter (100 Hz), and the choice of three pickup patterns: omni, cardioid, and figure-of-8.
Also available is the CM87SE, which is intended to handle the fast and loud transients of close-mic drums. This is accomplished by employing a “more complex output transformer with dual windings and bi-metal laminations.”
The mic ships in a flight case with a spider shockmount and foam windscreen.
Permalink: Advanced Audio Microphones CM-87
The mic was released in 2006.
Specifications
| Frequency Response - OmnidirectionalClick Graph to Compare! |
|---|
 |
| Frequency Response - CardioidClick Graph to Compare! |
 |
| Frequency Response - BidirectionalClick Graph to Compare! |
 |
| Pickup Patterns | Pads & Filters |
|---|---|
|
Omnidirectional
(25 - 20,000 Hz) Cardioid (25 - 20,000 Hz) Bidirectional (25 - 20,000 Hz) |
|
| Capsule Dimensions | Impedance | SPL/Noise |
|---|---|---|
| Diaphragm diameter: 27mm |
n/a |
| Weight | Length | Max Diameter | Interface(s) |
|---|---|---|---|
| 745g (26.28oz) | 205mm (8.07'') | 60mm (2.36'') |
|
| Power Specifications |
|---|
|
Did we get anything wrong on this page? Please let us know!