1707C/1715C Specifications (cont'd)

Continuous Average
Power:
1707C: 75 watts
1715C: 150 watts

Maximum Midband
Output Power: (Ref. 1 kHz at 1% THD)
1707C: 100 watts
1715C: 175 watts

Power Bandwidth: (Ref. 1 kHz at rated output)
Direct Output: >20 Hz - 20 kHz

lntermodulation
Distortion: (SMPTE 4:1)
Direct Output: <0.1% at rated power

Damping Factor:
Direct Output: >40, 20 Hz - I kHz

Rated Output Level: (Ref. I kHz)
Direct Output: (unbalanced)
1707C: 24.5 Vrms/8 SZ load
1715C: 24.5 Vrms/4 S2 load
Preamp Output: (unbalanced)
0 dBm, 600 i2 min. load
Transformer Output: (balanced)
1707C: 17.4 Vrms/4 St load 25.0 Vrms/8 S2 load 70.7 Vrms/66.6 S2 load
1715C: 25.0 Vrms/4.21Z load 34.6 Vrms/8 SZ load 70.7 Vrms/33.3 S2 load

Equalization: (Shelving type)
Bass: ± 12 dB at 100 Hz
Treble: ± 12 dB at 10 kHz

Compressor/Limiter: Feedforward Topology
Threshold: -20 dB to +20 dB
Continuously variable
(Ref. 100 mVrms on Link input)
Compression Ratio: 1:1 to -:1 Continuously variable
Release Time: 50 msec to 5 sec. Continuously variable

Tone Generator: Electronically produced
Tones: Buzzer, siren, single-tone chime, and repeating tone chime
Control: All tones are initiated by external switch closures
Level Adjustment: Rear panel

Protection System:
Amplifier: • Short circuit current limiting
• Over voltage limiting
• Thermal sensing
• Spurious oscillatory protection
• Low AC line sensing
Load: • Output DC detection
• Subsonic detection
• Tum-oNoff transients (-3 secs)

Front Panel Controls:
Input: 6 - Input Level adjust
Compressor/Limiter: 1- Release Time adjust
1 - Threshold adjust
1 - Compression Ratio adjust

I - On/Off switch
EQ Controls: 1- Bass adjust
1 - Treble adjust
1 - EQ In/Defeat switch
Output: 1- Master Level adjust
Miscellaneous: 1- AC Power switch

Rear Panel Controls:
Tone Generator: 1- Output Level adjust

Front Panel Indicators: 6- Green LED's (Nominal Input) 6 - Red LED's (Peak Input)
1- Red LED (Main Output clip) 1 - AC Power ON
Connectors:
Amplifier Input: 1- RCA phono receptacle
Link Input: 1- RCA phono receptacle
Battery: 1- 3-terminal barrier strip
Amplifier Output: 1- 7-terminal barrier strip
Preamp Output: 1- RCA phono receptacle
Link Output: 1- RCA phono receptacle
Mute and Tone Generator: 7 - Screw terminals

Power Requirements: (Ref. I kHz, rated output
with no modules installed)
AC Mains: 100/120/200/220/240 VAC,
50/60 Hz.
Battery: ±48 VDC bipolar
1707C: 1.5 amps maximum
1715C: 3.0 amps maximum

Power Consumption
and Heat Produced:
1707C:
75 watts output: 165 w consumed, 306 BTU/hour
25 watts output: 130 w consumed, 357 BTU/hour
1715C:
150 watts output: 320 w consumed, 578 BTU/hour
50 watts output: 230 w consumed, 612 BTU/hour

Operating
Temperature Range: Up to 50°C (122°F)

Dimensions:
Width: 19 inches (48.3 cm)
Height: 5'/, inches (13.3 cm)
Depth: 13 inches (33.0 cm)

Net Weight:
1707C: 25 tbs. (11.4 kg)
1715C: 32 tbs. (14.5 kg)

Finish Color: Black

Accessories included
with Mainframe:
1- Operating/Service Instructions for Mainframe,
1780A/AT, 1781A/AT and 1783
1- Preamp Out to Amp In "U" Shorting Bar 1- Direct Output to OT in Shorting Bar 1 - System Configuration Label 1- International 220/240 VAC voltage decal 1- International Fuse decal and fuse 1- Rack mount hardware kit

Altec Lansing continually strives to improve their products and performance. Therefore, specifications are subject to change without notice.