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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
(6.1 oz)
159 g
(5.6 oz)
125 g
(4.4 oz)
156 g
(5.5 oz)
Packaged 357 g
(12.6 oz)
437 g
(15.4 oz)
363 g
(12.8 oz)
377 g
(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. . . . . . . . . . . . . . . . . . . . .