Hafler 915 Stereo Amplifier User Manual


 
PERFORMANCE SPECIFICATIONS
PHONO SECTION
(Measured At
REC OUT)
LINE AMPLIFIER
(Measured at
OUT 1
or OUT 2)
HEADPHONE
AMPLIFIER
All specifications are for 20 Hz
-
20
kHz
unless specified otherwise.
FREQUENCY RESPONSE: +/-0.1
dB
MAXIMUM OUTPUT: 5 volts RMS
TOTAL HARMONIC DISTORTION AND NOISE:
Moving Magnet:
.002%
Moving Coil:
.009%
SENSITIVITY (For 0.5 volts RMS at REC OUT, @ 1 kHz):
Moving Magnet: 6.0 mV RMS
Moving Coil: 600 uV RMS
SIGNAL TO NOISE RATIO (A-weighted, relative to 0.5 V RMS at REC OUT):
Moving Magnet: -87
dB
Moving Coil: -80
dB
MAXIMUM INPUT SIGNAL (@ 1
kHz):
Moving Magnet: 65 mV RMS
Moving Coil: 6.5 mV RMS
INPUT IMPEDANCE:
Nominal: 47,000 ohms
Moving Magnet: 220 pF as supplied, user adjustable
Moving Coil: 100 ohms as supplied, user adjustable
GAIN (@ 1
kHz):
Moving Magnet: +38.5
dB
Moving Coil: +58.5
dB
FREQUENCY RESPONSE: +/- 0.1
dB
(into 33,000 ohms)
BANDWIDTH: 8 Hz
-
170 kHz, -3 dB, into
10k
ohm load
MAXIMUM OUTPUT: 6 volts RMS
TOTAL HARMONIC DISTORTION AND NOISE:
.008%
@
2 volts RMS
SENSITIVITY (For 0.5 volts RMS Output): 45 mV RMS
SIGNAL TO NOISE RATIO (A-Weighted, relative to 2 volts RMS output): -100
dB
INPUT IMPEDANCE: 20k ohms (including
PHONO/AUX1
when phono option not installed)
OUTPUT IMPEDANCE: 316 ohms
TONE CONTROLS> Bass: +/- 16
dB
@ 20 Hz, moving inflection, variable turnover
Treble: +/- 14
dB
@
20 kHz, shelving @ 5 kHz, fixed turnover
MAXIMUM OUTPUT: 4 volts RMS into 150 ohm load
OUTPUT IMPEDANCE: 150 ohms
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