Signal to Noise
SNR-A-Weighted 95 dBA 85 Relative to rated output A-Weighting filter
SNR-unweighted 75 dBr 65 Relative to rated output 22k filter
SNR rel. 1W-unweighted 55 dBr 50 relative to 1W Output 22k filter
Residual Noise Floor 2.5 mVrms 4 Volume @max, using
RMS reading on A/P
22k filter required due to 100kHz switching
noise present at speaker output
Input Impedance
Line Input 10k ohms Nominal
Speaker/Hi Level Input 200 ohms Nominal
Filters 0dBr = 1w @ 50Hz
Low Pass (fixed or variable) Variable
Low Pass filter (point or range) 50-150 Hz ±2dB -3dB Point
Slope 18 dB/Octave n/a
Q n/a n/a n/a
Subsonic filter (HPF) 35 Hz ±2dB -3dB Point
Slope 18 dB/Octave n/a
Limiter (yes/no) yes
Max. Output Power/THD=10% 62w@10% P-max/THD functional Maximum Output Power Maximum THD as a result of limiting.
Features
Phase Switch (yes/no) yes — functional
Volume pot Taper (lin/log) linear — functional
Input Configuration —
Line In (L,C,R,AC3,Mono) L,R — functional Enabled w/Line/Spkr Input Select Switch
Line Outputs (L,C,R) L,R — functional Buffered Output / Pre-Volume control
Line-Out Adj. X-over no Hz n/a n/a n/a
Spkr/Hi Level In (L,C,R,mono) L,R — functional Enabled w/Line/Spkr Input Select Switch
Spkr Out: Hi Pass Filter 100 Hz functional 8 ohm Satellite: 6dB/oct
passive xover
Driven from zero ohms source impedance
Signal-Present LED Yes — — — Bi-Color LED (green=signal/ red=no
signal)
Signal-Present Input Freq. 100 Hz functional Nominal 200uF Series Cap on PCB
Signal-Present Level 7 mV functional 100Hz into Line Input w/
1 ch. driven
Power on Delay time <2 sec. AC Power Applied
Transients/Pops
Turn-on Transient 500 mV-peak 2v-pp @ Speaker Outputs AC Line cycled from OFF to ON
Turn-off Transient 500 mV-peak 2v-pp @ Speaker Outputs AC Line cycled from ON to OFF
Efficiency
Stand-by Input Power 12 Watts n/a @ nom. line voltage
Power Cons.@rated power 80 Watts n/a @ nom. line voltage
Efficiency 63% % n/a Relative to rated output
Protection
Short Circuit Protection yes functional Direct short at output
Line Fuse Rating 0.5 or
1.0A*
Amps Type-T or Slo Blo * See Line fuse note on Page 2
4
Amplifier/Subwoofer BU-80/HTS-10
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