BRUEL & KJAER 4409 Instructions And Applications

Response Test Unit Type 4409
Test Records Types QR 2007-08-09
The test unit and recordings have been designed
to aid the accurate investigations of the frequency
response of sound reproducing equipment i.e.
record players, tape
&
film recorders etc.
BHUEL & KJJEH
Ncerum, Denmark •
~
80 05
00 . .;;;"
BRUKJA, Copenhagen. Telex: 5316
BB 4409