Crown D-75 Service Manual

~RE~Vcc. O'--- _________ -' O "'. 7"', "- P"O". W E"R" A "' M "'P"'U" F I"'ER "- ____ (SU'©JMDIfil9
Fig. 1.1 0-75
1 Introduction
Thi s manual contains co mplete service infonnation on Ih e
Crown
D- 75 power am plifier. It is designed 10 be u se d in
conjunction wi th th e 0 -75 In s ttu c tion Manual. However,
so me imponam informaLion is duplicated in thi s Service
Manual in case th e In s tru c tion Manual is not readily
availabl
e.
NOTE: THE INFORMA n ON IN THIS MANUAL IS
INTINDED FOR USE BY AN EXPERIENCED
TECl-II\ 'lClAN ONLY !
1.1 The 0- 75
The 0 -75 amplifier is a co mpact. aud io JX)wer amplifier
d
es igned for professio nal us e. Providing medium power
amplification
from 20 Hz-20KHz with minimum
distortion, th e un it features balanced inputs, signal
presence
and i()C1'loi indicators, monophoni c capabi lity
and a means fo r iSOlating elec lri c al ground from chass is
gro und .
1.2 Warranty
ProdUC t !.ha l is covered by warranty mus t be Se rvic ed by
an Au th orized Crown Service Ce nt er or at the Cr ow n
Factory
Service Depanmenl. Any questions co nce rn i ng
warranly policy should be directed to th e attention or
Tech ni cal Service Depanment at:
Crown Internat i onal , Inc.
1718 W. Mishawaka Road
Elkha rt, Indiana 46517·4095
Phone; (219) 294-8000
FAX, (2191294-8329
Twx: (810) 294-2160
Introduction 1-1

Crown D-75 Specifications

General

Cooling	Convection cooled
Frequency Response	20Hz - 20kHz
Total Harmonic Distortion	<0.05% at rated power
Signal to Noise Ratio	>100 dB
Input Sensitivity	0.775V for rated power
Weight	10 lbs
Damping Factor	>400
Input Impedance	20 kOhms balanced, 10 kOhms unbalanced
Dimensions	19" W x 1.75" H x 8.5" D