Crown Audio P.I.P.-PA - Manual (Page 11)

P.I.P.–PA
Page 11
4 Specifications
Note: All specifications referenced to a
0.775 V input signal.
Signal to Noise: Line: Nomi-
nally –80 dB from 20 Hz to 20
kHz. Mic: Nominally –118 dB
equivalent input noise, 20 Hz to
20 kHz (Rs=150
Ω
).
Frequency Response: Line:
±0.5 dB from 20 Hz to 20 kHz.
Mic: ±1 dB from 50 Hz to 15 kHz.
Common Mode Rejection: Bet-
ter than 70 dB at 60 Hz.
Nominal Input Impedance: Line:
50 K ohms balanced and 25
K ohms unbalanced. Mic: 2
K ohms balanced.
Phantom Power: 18 VDC at 9
mA. (Can be disabled with a
jumper block on the circuit
board.)
Recommended Source Imped-
ance:
Line: 600 ohms. Mic: 250
ohms.
Maximum Input Level: Line: +22
dB. Mic: +8 dB.
Nominal Gain: Line: Unity. Mic:
Adjustable from 20 to 50 dB with
user-accessible gain pots.
Compressor: Driven by both the
audio signal and by the IOC error
signal. The adjustable threshold
is controlled by a pot on the cir-
cuit board and the attack and
decay times are nominally fixed
at 20 msec and 200 msec, re-
spectively. At its maximum set-
ting it functions as an error-driven
compressor and is activated by
the
IOC signal. Below the maxi-
mum setting it is driven by the
audio feedback signal.
Remote Mic/Line Switch: The
mic/line priority of each channel
can be remotely controlled using
the “Remote” connector pro-
vided. Each channel is controlled
independently. When mic prior-
ity is selected, the line-level input
is attenuated 30 dB. When line-
level priority is selected, the mic
input is attenuated by 54 dB. A
delay circuit provides a smooth
fade from mic to line and visa
versa.
Dimensions: 6 3 /
8
x 1 7 /
8
x 3 7 /
8
in
(16.2 x 4.8 x 9.8 cm).
Weight: 12 ounces (340 grams).