Specifications; Detailed Specifications - Infinity ENTRA SUB TWO Service Manual

Entra Sub Two
INFINITY ENTRA SUB TWO
LINE VOLTAGE Yes/No
US 120vac/60Hz
EU 230vac/50-60Hz
Parameter Specification
Amp Section
Type (Class AB, D, other)
Load Impedance (speaker)
Rated Output Power (120VAC
Rated Output Power (230VAC
THD @ Rated Power
THD @ 1 Watt
DC Offset
Damping factor
Input Sensitivity
Input Frequency
L&R
LFE input
Speaker/Hi Level Input
L&R Sensitivity in dB to 1 Watt
Signal to Noise
SNR-A-Weighted
SNR-unweighted
SNR rel. 1W-unweighted
Residual Noise Floor
Residual Noise Floor
Input Impedance
Line Input (L, R,LFE) Minimum 10K
Speaker/Hi Level Input Minimum 4.7K
Filters
LP filter 4th
Subsonic filter (HPF) 3rd Orde
LFE Low pass 2nd order 200>LP<1K
HP speaker out connector
Limiter
THD at Max. Output Power
Features
Volume pot Taper (lin/log)
HP Speaker out
Phase switch
LP Filter defeat switch
Input Configuration
Line In (L,R) & LFE
Spkr/Hi Level In
Signal Sensing (ATO)
Auto-Turn-On (yes/no)
ATO Input test frequency
ATO Level LFE Input
ATO Level Speaker in
ATO Turn-on time
Auto Mute/ Turn-OFF Time
Power on Delay time
Transients/Pops
ATO Transient
Turn-on Transient
Turn-off Transient
150W Powered Sub/ Plate Amp
Hi/Lo Line Nom.
Yes 108-132 120
Yes 207-264 230
QA Test
Unit Limits
D n/a n/a
4 Ohms n/a
150 Watts 135
150 Watts 130
0.3 % 1
0.1 % 0.5
10 mV-DC 30
>50 DF 35
50 Hz 50
32 mVrms ±2dB
38 mVrms ±2dB
325 mVrms ±2dB
36 dB ±2dB
90 dBA 80
90 dBr 80
65 dBr 60
0.5 mVrms 1
0.5 mVrms(max) 1
ohms n/a
ohms n/a
50-150 Hz ± 10
Fixed
Hz
200 Hz ± 10
100 Hz ± 10
<5 <10 functional Maximum Output Power
--
LOG -- functional
YES functional
0-180 deg functional
YES functional
YES -- functional
YES -- functional
YES functional
50 Hz functional
2 mV functional
50 mV functional
5 ms functional
15 minutes 20
3 sec. 4
5 mV-peak n/a
50 mV-peak 2v-pp
50 mV-peak 2v-pp
Unit
Vrms
Vrms
Conditions
Nominal
22K filter
22K filter
Amplifier output
Measured at amplifier board
Nominal Freq.
To 1 Watt
To 1 Watt
To 1 Watt
To 1 Watt
relative to rated power
relative to rated power
relative to 1W Output
Volume @max, using RMS reading
DMM/VOM (or A/P) BW=20 KHz.
Volume @max, w/ A/P Swept
Bandpass Measurement (Line
freq.+ harmonics) (BW=20 Khz)
Nominal
Nominal
LFE input driven only
Speaker input driven - 4 Ohms
Speaker input driven - 8 Ohms
"
"
"
Amp connected and AC on, then
input signal applied
(T) Time before muting, after input
signal is removed
AC Power Applied
@ Speaker Outputs
@ Speaker Outputs
@ Speaker Outputs
3
Notes
Normal Operation
Normal operation, MOMS required
Notes
Domestic version only 120 VAC-60 Hz
EU Version only 230 VAC-50 Hz
140 Watts
Measured at the speaker cable. 150 Watts @
THD < 0.1 % @ 50 Hz
Single input driven, AP Zo=600 Unbalance
Single input driven, LFE switch ON, AP Zo=600
Ohms, Unbalance.
Single input driven, EQ switch in Normal
Single input driven, AP Zo=600 Unbalance
A-Weighting filter
22k filter
22k filter
Line level inputs must be terminated using
1KOHM
Line level inputs must be terminated using
1KOHM
See AP curves 2nd order variable + 2nd order
fix-24 db/Octave
Maximum THD as a result of limiting., Input
signal 6dB above its maximum sensitivity
(Single input driven)
A Taper
Refer to Filter section
Disables LP filter, intended for LFE
Dual RCA jack
Binding post connector L&R
Maximum acceptable level.
Maximum acceptable level.
Auto turn of time (T) must be 5 > T < 20
Minutes
AC Line cycled from OFF to ON
AC Line cycled from ON to OFF