LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit Notes
US 120vac/60Hz Yes 108-132 120 Vrms Normal Operation
EU 230vac/50-60Hz Yes 207-253 230 Vrms Normal operation, MOMS required
Asia 100vac/50-60Hz No 90-110 100 Vrms Normal Operation
Parameter Specification Unit
QA Test
Limits Conditions Notes
Amp Section
Type (Class AB, D, other) D n/a
n/a
Load Impedance (speaker) 4 Ohms
n/a
Nominal
AVG System impedance 10.8 Ohms
n/a
AP Computed BW from 20 to 500Hz Refer to AP Graph
Rated Output Power 250 Watts
220
AVG Peak voltage 45.8 Vpk
Reference
170mV driven into a single input
Average PK voltage, 3/20 Cycles 50 Hz, Driven
6dB above its input sensitivity , rated impedance
THD @ Rated Power 0.5 %
1
22K filter+AUX-0025
THD @ 1 Watt 0.2 %
0.3
22K filter+AUX-0025
DC Offset 10 mV-DC
50
@ Speaker Outputs
Damping factor >50 DF
20
Measured at amplifier board 90% o
full power
Measured at the speaker cable. 225 Watts @
THD < 0.1 % @ 50 Hz
Input Sensitivity
Input Frequency 50 Hz
50
Nominal Freq.
L&R 5.6 mVrms
±1dB
To 1 Watt, Ap Zo=25 Single input driven
LFE input 5.6 mVrms
±1dB
To 1 Watt, Ap Zo=25 Single input driven, LFE switch ON
System Gain 51 dB
Reference
Single input driven Normal or LFE mode
Signal to Noise
SNR-A-Weighted 80 dBA
75
relative to 1W-Inputs terminated A-Weighting filter
SNR-unweighted 70 dBr
65
relative to 1W-Inputs terminated 22K filter
Residual Noise Floor <2.0 mVrms(max)
2.5
Volume @max, w/ A/P Swept
Bandpass Measurement (Line
freq.+ harmonics) (BW=20 KHz)
Line level inputs must be terminated using
1KOHM
Input Impedance
Line Input (L, R,LFE) 5.5K ohms
n/a
Nominal
Filters
LP filter Variable 50-150 Hz
± 10 4th Order variable Refer to AP curves
Subsonic filter (HPF) 2nd Ord
Fixed F=32Hz,Q=0.925
Refer to AP curves
Friend circuit Fixed F=59Hz,Q=3.5, Av=-1dB
Refer to AP curves
LFE Low pass Fixed 200>LP-LFE<500
Refer to AP curves
Limiter
THD at Max. Output Power
13 % functional
Drive unit 6dB above the required
level to obtain full power
Approximately 208mV
Maximum THD as a result of limiting.
Features --
Volume pot Taper (lin/log) LOG --
functional
A Taper
Phase switch 0-180 deg
functional
LP Filter defeat switch YES
functional Disables LP filter, LFE Mode
LED Indicator YES
functional
Bi-color LED loacated at the amplifier panel, Red
Standby, Green-On
Input Configuration
Line In (L,R) or LFE
YES --
functional Dual RCA jack, For LFE use L or R
Signal Sensing (ATO)
Auto-Turn-On (yes/no) YES
functional
ATO Input test frequency 50 Hz
functional
"
ATO Level LFE Input 2 mV
functional
" Maximum acceptable level.
ATO Turn-on time 5 ms
functional
Amp connected and AC on, then
input signal applied
Auto Mute/ Turn-OFF Time 5-15 minutes
5-15
T before muting, after signal is
removed
Auto turn of time (T) must be 5 > T < 15
Minutes
Power on Delay time 3 sec.
4
AC Power Applied
Transients/Pops
ATO Transient 0.5 V-peak
0.5V
@ Speaker Output
Amplifier activated by signal presence at the
Line input
Turn-on Transient 0.5 V-peak
0.8V
@ Speaker Output AC Line cycled from OFF to ON
Turn-off Transient 0.5 V-peak
0.8V
@ Speaker Output AC Line cycled from ON to OFF
Detailed Specifications
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