Stasis
Amplification
Audiophiles
who hear the SR-3E are amazed at its effortlessly transparent sound. Music has
more detail, more impact, more realism - especially when reproduced on
"difficult" top-quality speakers. The reason is our
"Stasis" power amplifier - the same concept used in the PA-7 and PA-5
Power Amplifiers.
STASIS is a
radically different and superior design in which two amplifiers drive the
speaker; a high-quality low-power amplifier and a "Current-Mirror
Bootstrap" to supply muscle. The low-power amplifier can be designed for
virtually perfect performance, "global" feedback isn't needed as in
ordinary power amps. Removing the overall
feedback ensures uniform output impedance and inherent stability, and,
since the amplifier is stable, there's no need to isolate it from the speaker
with a coil as is usually done. This permits the amplifier to control the
speaker more preciselly and realize its full potential. The current bootstrap
provides tremendous peak-current reserves - up to 25 ampers into low-impedance
loads.
Specifications
Power
Amplifier Section
Continuous
Average Output Power (IHF-A): 45 watts
per channel (8 Ω, both channel driven, 20-20,000 Hz, no greater than 0,1%
T.H.D.)
Dynamic
Output Power (both channel driven):
64 watts per
channel into 8 Ω
80 watts per
channel into 4 Ω
Dynamic
Headroom (IHF-A): 1,5 dB
Power
Bandwidth: 5 -40,000 Hz
Frequency
Response (IHF-A): 5 Hz - 75 kHz +0 -3 dB
Signal-to-Noise
Ratio: better than 105dB (rated power);
better than 85 dB (IHF-A-202)
Total
Harmonic Distortion (Rated Power, 8 Ω):
less than 0,1% (20 - 20,000 Hz)
Intermodulation
Distortion (Rated Power, 8 Ω): less than
0,15% (60 Hz :7 kHz = 4 : 1)
Headphone
Rated Output (40 ohms): 105 mW
Output
Current Capability: 18 A peak per
channel
Preamplifier
Section
Input
Sensitivity (for Rated Output):
Phono MC
(gain; 32/24 dB): 60/150 µV
Phonoo MM
: 2,5 mV
CD, Tape,
Video: 200 mV
Sensitivity
(1 watt, IHF-A):
Phono MC
(Gain; 32/24 dB): 8,9 / 24 µV
Phono MM
: 0,37 mV
CD, Tape,
Video : 30 mV
Input
Impedance:
Phono MC
: 100 ohms
Phono MM
: 47 k Ω
CD, Tape,
Video : 20 k Ω
Maximum
Input Level (1 kHz):
Phono MC
(gain; 32/24 dB): 3/8 mV
Phono MM
: 140 mV
Record
Output Level/Impedance: 200 mV/1 k Ω
Total
Harmonic Distortion (20 20,000 Hz, to
Rec Out at 1 V):
Phono MC
: less than 0,003%
Phono MM
: less than 0,002%
RIAA
Deviation: 30 - 20,000 Hz ±0,5 dB
Signal-to-Noise
Ratio (to speaker output, IHF-A):
Phono MC
: better than 73 dB (32 dB gain); better
than 72 dB (24 dB Gain)
Phono MM
: better than 80 dB
Tone Control
Bass: 20 Hz ±10 dB
Treble: 20 kHz ±10 dB
Loudness:
20 Hz +10 dB; 20 kHz +6 dB
Subsonic
Filter (Phono only): 20 Hz, -12
dB/octave (cutoff Frequency)
FM Tuner
Section
Frequency
Range: 87,5 - 108 MHz
IHF Usable
Sensitivity [mono]: 11 dBf (1,9 µV)
-50 dB
Quieting Sensitivity [mono/stereo]: 21,0
dBf (6,1 µV) / 42,0 dBf (69,0 µV)
Signal-to-Noise
Ratio at 65 dBf [mono/stereo]: better
than 74 dB / 69 dB
Muting
Threshold: 30 dBf/17,3 µV
Frequency
Response: 20 Hz - 15 kHz ±1 dB
Total
Harmonic Distortion [mono/stereo]: less
than 0,12% / 0,20%
Capture
Ratio: 2,0 dB
Alternate
Channel Selectivity: 70 dB (±300 kHz)
Stereo
Separation at 1 kHz: better than 43 dB
Spurious
Response Rejection: better than 90 dB
Image
Rejection: better than 75 dB
IF
Rejection: better than 80 dB
AM
Suppression: better than 60 dB
AM Tuner
Section
Frequency
Range: 522 - 1611 kHz
Sensitivity: 53 dBµ/m
Signal-to-Noise
Ratio (at 90 dBµ/m): better than 52 dB
Total
Harmonic Distortion (at 90 dBµ/m): less
than 0,3%
Selectivity: better than 20 dB (±10 kHz)
General
Power
Source: 110,120,220 or 240 V AC, 50/60
Hz
Power
Consumption: 270 watts max
Convenience
Outlets: 2 x switched; 1 x unswitched
Dimensions (W x H x D):
430 x 100 x 370 mm (16-15/16" x 3-15/16" x 14-9/16")
Weight: 8,5 kg (18 lbs 12 oz)
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