EQUIPMENT MANUAL 251-16-1
251/251-16-1
Page 4
OUTPUTS
:
RIGHT
SPEAKER: The right speaker amplifier is designed for speech and music signals.
Rated power specification is the maximum power the amplifier can
continuously deliver into the maximum rated load without clipping.
Rated Power
Load
49 W 1 ohm (40 Watts typical)
28 W 2 ohms (30 Watts typical)
15 W 4 ohms (18 Watts typical)
LEFT
SPEAKER: Same as right speaker specification
RIGHT
MONITOR: This output will deliver up to 26 milliwatts into 600 ohms continuously.
Factory calibration is 1.6 mW (1 V
RMS
).
LEFT
MONITOR: Same as right monitor specification
PA SDTN: This output will deliver 6.7 milliwatts (2 V
RMS
) into 600 ohms continuously.
Rated and continuous power ratings are the same.
CHIME
TONE: Generated and supplied to left and right speaker and monitor outputs when
12 to 32 VDC is applied to or removed from connector pins P50-31 or P50-32.
A 790 Hz tone followed by a 610 Hz tone (2-tone, HI/LO) is factory set for 3.5 VPP
(at speaker outputs), adjustable from 1.0 to 6.9 VP-P and is also available at
monitor outputs.
RINGER
TONE: Generated and supplied to left and right speaker and monitor outputs
when a ground signal is applied to connector pin P50-33. Ringer tone is
700 +
75 Hz tone, ON for 1.8 +0.1 second, then OFF for 3.2 +0.1
second, repeating. Factory set for 1.5 VP-P (700 Hz component)
(at speaker outputs), adjustable from 0 to 5.2 VPP.
FREQUENCY
RESPONSE: Upper and lower frequency limits are adjustable. Stereo, ADF, TV, and
PSC inputs to speaker and monitor outputs are flat within 3 dB from 40 Hz to
20,000 Hz. All other inputs to speaker, monitor, or PA sidetone outputs flat within
3 dB from 300 Hz to 6,000 Hz.
HARMONIC
DISTORTION
(THD+N): Less than 0.30 percent distortion, for stereo and less than 1% for ADF, TV
and, PSC to all outputs (40 Hz to 20 Khz). Less than 3% for PA and briefer to
all outputs (300 Hz to 6 Khz).
To Next Page
Loading...
General