INFINITY ERS640
Service Manual

Technical Manual

ERS 600/620/640
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
Nominal Impedance: Power Rating: Crossover Frequencies: Frequency Response: Sensitivity: 4 ohms 15 to 60 watts RMS 3.8kHz 60Hz-22kHz 85dB 1watt/1 meter

Environmental Reference Series 2-Way Speaker
PHYSICAL SPECIFICATIONS:
1x - 3/4" Polycell Tweeter 1x - 6" (15.2cm) IMG Woofer Baffle Dimensions: 12-3/4"H x 8-3/4"W" x 3-1/4"D XXXXX XX 32.4x22.2x8.3cm Hole Size Required: 11-3/8"H x 7-5/8"W XXXXXXXXXXXXX XX 28.9x19.3cm Tweeter Control #145-0103 Grille Grille Foam Crossover Logo #654-6541 #965-6542 #015-4349 #716-5719

PRODUCTION HISTORY
Introduced in (600:1989) (620:1991) (640:1994) Discontinued (600:1991) (620:1994) (640:1998) Original Retail Price: (600:$300.00/pair) (620/640:$350.00/pair)

NOTE: MUST HAVE A SEPARATE INSTALLATION BRACKET

TECHNICAL INFORMATION

POLYCELL

TWEETER #902-4364A DIAPHRAGM #751-5211

6" WOOFER (800/820:NLA) #902-7291 (840) Substitute #902-4356
6.0µF 5� 5W

10" BLU S/C

0.4mH
24" GRN S/C

TWEETERS

INPUTS

10" BLU/BLK S/C

24" GRN/BLK L/C

0.4mH

21" RED L/C

WOOFER

21" RED/BLK L/C

REV A

9-98

INFINITY SYSTEMS INC., 250 Crossways Park Drive, Woodbury, New York 11797

ERS 600/620/640 Environmental Reference Series 2-Way Speaker