Infinity CLASSIA PSW310W, Руководство по обслуживанию

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PSW310W 250W Powered Sub Amp
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
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 5.3 Ohms n/a
AP Computed BW from 20 to
500Hz
Min System imepdance 3.6 Ohms n/a @ 100 Hz
Rated Output Power
(120VAC)
250 Watts 250 Domestic version only 120 VAC-60 Hz
AVG RMS Dynamic Power 300 312 Reference 800mV driven into a single input L
or R
Average RMS power, 3/20 Cycles 50 Hz,
Driven 6dB above its input sensitivity ,
average of the RMS value for the first 4
consecutive peaks
THD @ Rated Power 0.5 % 1 22K filter
THD @ 1 Watt 0.2 % 0.3 22K filter
DC Offset 10 mV-DC 30 @ Speaker Outputs
Damping factor >50 DF 20
Measured at amplifier board 90%
of full power
Measured at the speaker cable. 225 Watts
@ THD < 0.1 % @ 50 Hz
Input Sensitivity
Input Frequency 50 Hz 50 Nominal Freq.
L or R 28.69 mVrms ±1dB To 1 Watt Single input driven
LFE input 14.93 mVrms ±1dB To 1 Watt Single input driven, LFE switch ON
System Gain (L or R inputs) 36.86 dB Reference
Single input driven L or R inputs (Local
inputs)
System Gain (LFE input) 42.53 dB Reference Single input driven LFE Mode local input
Signal to Noise
SNR-A-Weighted 80 dBA 75 relative to 1W A-Weighting filter
SNR-unweighted 70 dBr 65 relative to 1W 22K filter
Residual Noise Floor <1.5 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) 10K ohms n/a Nominal
Filters
LP filter Variable 50-150 Hz ± 10 4th Order variable-24 db/Octave
Subsonic filter (HPF) 2nd
Order
Fixed
Friend circuit Fixed
LFE Low pass 200>LP<500 Hz LFE input driven only
Limiter
THD at Max. Output Power 5 % functional
Drive unit 6dB above the required
level to obtain full power
Approximately 800mV single input
driven, L or R input
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, Wireless mode only, it
has no effect when using local inputs
Wireless ready YES functional Refer to Wireless section below
Wireless channels 4 n/a functional
System is provided with 4 wireless
channels, which can be selected via a rear
panel switch, channel should match ID at
LED Indicator YES functional
RED-Standby, GRN-Active, ORG-Wireless
link and subwoofer are active.
Input Configuration
Line in (L,R) & LFE
YES -- functional Dual RCA jack
2
PSW310W subwoofer Classia Series