Infinity IRS Sigma Technical Manual

Technical Manual
IRS Sigma
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
l Nominal Impedance:
l Max Amp Power
l Frequency Response
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
All manuals and user guides at all-guides.com
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)
CARTON
IRS SIGMA
946-7369
MICROFOAM
951-2830 (4)
l Crossover Network
AURAL SWEEP TEST SPECIFICATIONS:
System Aural Sweep Test
l
l L.F. Aural Sweep Test
l M.B. Aural Sweep Test
M.F. Aural Sweep Test
l
l H.F. Aural Sweep Test
PHYSICAL SPECIFICATIONS:
l Enclosure dimensions:
Weight
l
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
SR1
1.1O ohms
5 WATTS
+
HIGH
SW1
FREQUENCY
INPUT
-
SR4
1.20 ohms
5 WATTS
SR3
1.20 ohms
5 WATTS
+
SW3A
-
+
SW3B
-
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- " (H x W x D)
1/4 1/2 1/4
(1422 x 457 x 406mm)
195 lbs (88.6 kg) Each
SR2
1.0 ohms
5 WATTS
+
+
Mid/Twt PCB
FLAT
-
-
SR6
1.10 ohms
5 WATTS
SR5
1.10 ohms
5 WATTS
+
FLAT
SW2
Mid/Twt PCB
-
-
SR7
1.00 ohm
15 WATTS
+
MIDBASS
-
A
WOOFER
SECTION
B
07/00