INFINITY QB
Manual de Servicio

Technical Manual

QB

Quantum Series 3-Way Speaker
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
Nominal Impedance: Power Rating: Sensitivity: Crossover Frequencies: Frequency Response: Horizantal Dispersion: 4 ohms 15-150 watts RMS 89dB @ 1 watt, 1 meter 600Hz and 4,000Hz 42Hz-32,000Hz +/-3dB -2dB at 60°, left or right (20kHz)

PHYSICAL SPECIFICATIONS:
1x - EMIT Tweeter 1x - 4" (10.1cm) Midrange 1x - 10" (25.4cm) Q-Woofer Dimensions: 25"H x 14.5"W" x 12"D XXXXXXXXXXXXXXXX XXXXXXXXX63.5cm(H) x 36.8cm(W) x 30.5cm(D) Cabinet Not Sold Grille #A025-038 Crossover NLA Tweeter Level Control #145-0103 Midrange Level Control #145-0103 Logo #716-0319

PRODUCTION HISTORY
Introduced in 1978 Discontinued 1983 Original Retail Price: $396.00/pair

TECHNICAL INFORMATION

EMIT TWEETER #902-0221 TWEETER DIAPHRAGM #751-3722

4" MIDRANGE #902-1166 Substitute #902-0179 10" WOOFER #902-2128 Sustitute #902-2864
FUSE
Original 2� 5W Substitue 5� 5W

BLU/BLK

6.8µF

1.25A AGC

TWEETER
BLUE

12.5µF

1.0mH AIR CORE

5� 5W

WHT/BLK

INPUTS

8.1�

MIDRANGE
WHITE RED

1.5mH IRON CORE

WOOFER
RED/BLK

REV A

7-98

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

QB Quantum Series 3-Way Speaker