Infinity IRS Sigma Technical Manual

Technical Manual
IRS Sigma
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
l Nominal Impedance:
l Max Amp Power
Frequency Response
l
l Sensitivity:
l Crossover Frequency:
SYSTEM COMPONENTS:
l Cabinet
l Front Grille, w/logo
l Lower Rear Grille
l Upper Rear Grille
l Low-Frequency Transducer:
DC Resistance
l Mid-Bass Transducer:
DC Resistance
l Mid Frequency Transducer:
DC Resistance
High-Frequency Transducer (2):
l
DC Resistance
PACKING
FOAM, TOP
951-7057
SETUP
INSERT SHT
930-7948
IRS SIGMA,
OWNERS MANUAL,
930-7400
MICROFOAM
951-2830 (4)
CLOTH
SHEETING
990-7169 (2)
FOAM,
BOTTOM
951-7058
Infinity Systems, Inc. 250 Crossways Park Dr., Woodbury, New York 11797
49
500 watts*
30 Hz - 42,000Hz (E2dB)
87dB (1 watt @ 1 meter)
160Hz, 600Hz, 3800Hz
IRS Sigma (Not for Sale)
A026-7280
A026-7354
A026-7086
12"(304mm) Woofer (902-7502),
330709-001
3.7 ohms E10%
6 1/2"(165mm)Mid-Bass Coupler
(902-7379)
3.6 ohms E10%
Neodymium Emim
(902-5339A)
3.7 ohms E10%
Emit-B Neodymium
(902-5228)
3.9 ohms E10%
30" x 30"
WARRANTY
PLASTIC SHEET
(5/1) CARD
955-7224
940-7670
CLOTH
SHEETING
990-7169 (2)
IRS SIGMA
MICROFOAM
951-2830 (4)
l Crossover Network
AURAL SWEEP TEST SPECIFICATIONS:
l System Aural Sweep Test
l L.F. Aural Sweep Test
l M.B. Aural Sweep Test
l M.F. Aural Sweep Test
l H.F. Aural Sweep Test
PHYSICAL SPECIFICATIONS:
l Enclosure dimensions:
l Weight
WARRANTY:
l Refer to Warranty Statement packed with each product.
* The maximum recommended amplifier power rating will ensure prop-
er system headroom to allow for occasional peaks. We do not recom-
mend sustained operation at these maximum power levels.
SWITCHBOARD PCB
SCHEMATIC
+
HIGH
FREQUENCY
INPUT
-
CARTON
946-7369
Input Assembly (A017-7399)
Woofer Network/Board (A015-7398)
Mid-Bass PCB (A020-7397)
Tweeter/Midrange PCB (A020-7396)
6.0V Input 30 Hz to 42 kHz
6.0V Input 30 Hz to 500 Hz
5.0V Input 100 Hz to 1 kHz
4.0V Input 500 Hz to 4 kHz
2.83V Input 3 kHz to 42 kHz
58 " x 18 " x 16-
1/4 1/2
(1422 x 457 x 406mm)
195 lbs (88.6 kg) Each
SR1 SR2
1.1O ohms 1.0 ohms
5 WATTS 5 WATTS
+
SW1
FLAT
-
SR4 SR6
1.20 ohms 1.10 ohms
5 WATTS 5 WATTS
SR3 SR5
1.20 ohms 1.10 ohms
5 WATTS 5 WATTS
FLAT
SW2
-
SR7
1.00 ohm
15 WATTS
+
SW3A
-
+
SW3B
-
" (H x W x D)
1/4
+
Mid/Twt PCB
-
+
Mid/Twt PCB
-
+
MIDBASS
-
A
WOOFER
SECTION
B
07/00