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Pub. 42004-615L2
Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 14 of 15
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Specifications
Electrical
Voltage .............................................................................. 90 to 140 V ac (120 V ac nominal) 50/60 Hz
Power consumed ......................... Zero/maximum signal (12 watts): 15 VA, 10.5 watts/ 53 VA, 34 watts
Speaker Amplifier
Output.......................................................................... 12 watts minimum, with nominal supply voltage
Output limiter..........................................................................2.16 Vpeak (adjustable via configuration)
Voltage Gain................................................................................................26 dB maximum, adjustable
Frequency Response........................................................................575-4500 Hz, +0/-3 dB ref. to 1 kHz
Distortion............................................................................................1% max. THD @ 1 kHz, 12 watts
Input Impedance.......................................................................50 k-ohms nominal without FSK modem
16 k-ohms nominal with FSK modem
Audio input from line...........................................1.5 Vrms nominal (depends on distance) from 33 ohm
FSK Modem
FSK output to line .............................................................................0.7 Vrms, 2 Vp-p into 33 ohm load
FSK frequency range.............................................................................................................. 30-33 kHz
SmartVolume™
Dynamic range (low gain) ........................................................................................ 62 to 100 dBA SPL
Frequency characteristics...............................................................................630 Hz LPF (-6 dB/octave)
Offset (above ambient) User Level Adjust ...............................................................................0 to 25 dB
Minimum user adjust.........................................................................................Off; 85 to 125 dBA SPL
Speaker/Wire Monitor
Dynamic range (high gain) ............................................................................................27 to 65 dB SPL
Frequency characteristics...............................................................................630 Hz LPF (-6 dB/octave)
Fault setpoint............................................................................35 dB SPL (adjustable via configuration)
Note: The measured SPL varies for each speaker type.
Recommended environment ................................................................................. Greater than 50 dB SPL
Mechanical
Dimensions ............................................ 14.4 H × 14.4 W × 7.83 D inches (367 × 367 × 199 mm) overall
Enclosure material........................................................................................................... LM25TF, Epoxy
Internal controls ........................................................................................................................Line level
Environmental
Operating and storage temperature range..............................................-4º F to +151º F (-20º C to +66º C)
Humidity.................................................................................................................. 95% non-condensing