Specifications

(All measurements taken at Direct Output of AMS mixer)

Type

Condenser (electret bias)

Frequency Response

AMS22: 50 to 10,000 Hz [1a]

AMS24, AMS26: 50 to 16,000 Hz [1b]

AMS28: 50 to 16,000 Hz [1c]

Polar Pattern

AMS22: Hemi-cardioid [2a].

AMS24, AMS26: Cardioid (unidirectional) [2b]

AMS28: Cardioid (unidirectional) [2c]

Acceptance Angle

AMS22, AMS24, AMS26: Microphone activates for sounds within 60 (typical) of front axis

AMS28: Optimized for chest placement. Microphone activates for sounds within 65 (typical) of front axis

Output Level (at 1,000 Hz)

Open Circuit Voltage (0 dB = 1V/μbar):

AMS22: ±47 dB typical

AMS24, AMS26: ±54 dB typical

AMS28: ±53 dB typical

Impedance

900 Ω actual at Direct Output of AMS mixer

Noise

AMS22: 20 dB equivalent SPL typical, A-weighted; 25.5 dB equivalent SPL typical, weighted per DIN 45405

AMS24, AMS26, AMS28: 27 dB equivalent SPL typical, A- weighted; 32.5 dB equivalent SPL typical, weighted per DIN 45405

Polarity

Pin 2 is front facing transducer; Pin 3 is rear facing transducer. Positive pressure on microphone diaphragm pro- duces positive voltage on pin 2 relative to pin 3 at AMS mixer Mic/Line output, and negative voltage on tip ter- minal at AMS mixer Direct Output connector

Cable and Connector

AMS22, AMS24, AMS28: Attached 6.1m (20 ft), 2-conductor, shielded, with three-pin male (XLR type)

AMS26: Three-pin male (XLR type)

Case

AMS22: Black plastic base and brown steel-mesh screen with black trim

AMS24: Black vinyl-enameled brass case with black steel- mesh grille

AMS26: Metallic brown vinyl-enameled brass handle with matching steel-mesh grille

AMS28: Metallic brown vinyl-enameled brass case with match- ing steel-mesh grille

Dimensions

AMS22 [3a], AMS24 [3b], AMS26 [3c], AMS28 [3d].

Weight

	AMS22	AMS24	AMS26	AMS28

Net	173 g	159 g	125 g	156 g
	(6.1 oz)	(5.6 oz)	(4.4 oz)	(5.5 oz)

Packaged	357 g	437 g	363 g	377 g
	(12.6 oz)	(15.4 oz)	(12.8 oz)	(13.3 oz)

Certifications

Eligible to bear CE Marking. Conforms to European EMC Di- rective 89/336/EEC. Meets applicable tests and performance cri- teria in European Standard EN55103 (1996) parts 1 and 2, for res- idential (E1) and light industrial (E2) environments.

Furnished Accessories

AMS24: Mounting Flange . . . . . . . . . . . . . . . . . . . . 31A1479B Black Windscreen . . . . . . . . . . . . . . . . . . . . . . . 49C55

AMS26: Brown Windscreen . . . . . . . . . . . . . . . . . . RK229WS

Swivel Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . A57F

Connector Locking Kit . . . . . . . . . . . . . . . . 90CK1371

AMS28: Lavalier Assembly . . . . . . . . . . . . . . . . . . . . . . 94A292

Replacement Parts

AMS22: Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90CM2600

Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90CH2600

AMS24: Grille . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90BZ2600

AMS26: Case	90CP2600
Grille	90CS2600

Optional Accessory

AMS24: Male XLR-mounts to gooseneck . . . . . . . . . . A24QG

AMS26: Desk Stand Extension . . . . . . . . . . . . . . . . . . . . . A26X