Infinity Reference standard 1, Reference standard 1-B, RS-1 Schematic
SPECIFICATIONS
Technical Manual
REFERENCE
STANDARD 1 AND 1-B
REV A 9/98
INFINITY SYSTEMS, INC. 250 Crossways Park Dr., Woodbury, New York 11797
REFERENCE STANDARD 1 AND 1-B
• Drivers: For each channel:
Six 8-inch polypropylene woofers,
servo network controlled. Seven
EMIM midrange drivers in dipole
array. Four EMIT tweeters, one
facing rearward, in dipole array
• Frequency Response: 25 to 32,000 Hz ±2 dB
Suggested for use with amplifiers
of: Bass module, 150 watts per
channel min.; midrange/treble
module, 75 watts per channel min.
Must be bi-amped
• Crossover Frequencies: 140Hz, 700 Hz, 3,000 Hz, and
8,000 Hz
• Nominal Impedance: 4 ohms
• Finish: Hand rubbed oiled oak veneers
and solids
• Dimensions: Bass column: 60 inches x 12 wide
x 12 deep; Midrange/Tweeter
modules: 60 inches x 24 wide
x 12 deep
• Shipping Weight: 400 lbs per system
PRODUCTION HISTORY:
• Introduced in:
• Discontinued in:
• Original Retail Price:
Physical Specifications:
COSMETIC PARTS:
Grille WFR .025...1299B
Grille Mid/Twt Lt/Rt .025...1922
Foot, Metal Adj. .846...2290
Logo Large Rect. .716...1966
CROSSOVER PARTS:
Fuse 1.25A AGC .870...0010
Fuse 2.5A AGC .870...0024
Fuse Holder .550...0062
Pot 5 ohm 15W .145...0110
Passive Crossover Assy NLA
Active Crossover Unit NLA
DRIVERS
Mid EMIM Rev. B/C .902...0012B
EMIT Twt 1/4 LS Top .902...5002
8” WFR Poly Clear .902...5009
EMIT Sq/Blk (T,B,R) .902...5086
EMIT Diaph. 1/2 LS .751...3733
EMIM Diap Assy .751...3806
EMIT Diaph 1/4 LS .751...2894
REV A 9/98
INFINITY SYSTEMS, INC. 250 Crossways Park Dr., Woodbury, New York 11797
REFERENCE STANDARD 1 AND 1-B
Technical Manual
REFERENCE
STANDARD 1 AND 1-B
TECHNICAL SPECIFICATIONS
LOW PASS
CUTOOF
105/125V
210/250V
A.C. INPUT
50/60Hz
HIGH PASS
OUTPUT,
RIGHT
INPUT, RIGHT
HIGH PASS
OUTPUT,
INPUT, LEFT
1/16A – 120V
1/32A – 250V
LINE VOLTAGE
C
BRIDGE CIRCUIT
10M
IN4148
3
+
U1
2
–
47CµF
47CµF
.01µF
LOW
FREQ.
LEVEL
LOW PASS
FILTER
3
–
U4
2
+
470µF
470µF
.01µF
LOW
FREQ
LEVEL
I
+18V
.1µF
51K
8
1
+
16V
1µF
50V
+
16V
MM
5K
+ 18V
.1µF PP
51K
8
1
+
16V
1µF
50V
+
16V
MM
5K
–18V
BRIDGE CIRCUIT
0.47µF
H
2
CA
470
1
A
LEFT
120V
220V
120V
220V
2N545B
1M
2SK330
12
CA
470
11
2N5458
1M
2SK330
4
5
3
6
MDR101A
2
7
8
1
T1
259-K-2
OR
INPUT BUFFER
OR
1000µF
35V
1.5K
1W
100
2N5458
2SK330
100
2N5458
2SK330
IN4148 (2)
OR
OR
+
1000µF
+
+
.068µF
PP
5
+
U1
.068µF
6
–
PP
RB
.1µF PP
100
470
LOW CUT
FILTER
.068µF
PP
5
+
U4
.068µF
6
–
PP
RB
.1µF PP
100
470
7815C
1
3
1.5K 1W
2
+ +
270
22µF
1/2W
35V
LED
35V
360
+
1/2W
22µF
1.5K
35V
1W
1.5K 1W
1
3
2
7915C
POWER SUPPLY
ALL COMPONENTS MOUNTED INSIDE DOTTED LINES ARE MOUNTED ON MAIN PCB.
2200pF
.022µF
RC
RA
7
4
RA
7
4
1000µF
35V
+
1000µF
35V
RD
2200pF
2.0K
2.0K
2200pF
.022µF
RC
RD
2200pF
2.0K
2.0K
1.5K
1.8K
10µF
35V
+
51K
–
C8
1
U3
+
8
.1µF
.1µF
51K
3
8
+
1
U2
2
–
.022
µF
18.2K
1K
-18v
SERVO AMP
.1µF PP
3
8
+
1
.022
U5
2
µF
–
18.2k
1K
51K
51K
C8
1
U3
8
.1µF
470K
10K
2
.047µF
10K
3
.022µF
51K
2K
HUM
BAL.
100K
100K
6
–
7
U2
5
+
4
B
51K
100K
100K
6
–
U5
5
+
4
51K
470K
10K
2
–
.047µF
10K
3
+
.022µF
51K
HUM
BAL.
22K
1K
150
.22
.22
µF
µF
7
8
2N4392
.1µF
7
6
17
18
2N4392
.1µF
22K
1K
150
.22
.22
µF
µF
D
E
A2
A1
A3
BASS
AMP
0°
180°
2N4392
BASS
AMP
0°
180°
2N4392
16
A10
A122K
0.2
0.2
5W
5W
510
510
AMP IN
LOW SENSE
XVR OUT SENSE
510
510
0.2
5W
F
9.5µF
MM
1M
1M
9.5µF
MM
AMP IN LOW SENSE
0.2
5W
RED
AMP
}
BLK
RIGHT CHANNEL
RED
SPK
}
BLK
G
LOW PASS
OUTPUT
RIGHT
XVR OUT SENSE
IN4148
(3)
–
U6
+
10M
10K
–
U6
+
1N4148
(4)
LOW PASS
OUTPUT
LEFT
ALL COMPONENTS INSIDE DASHED LINES ARE
MOUNTED ON INPUT/OUTPUT PCB.
RED
AMP
}
BLK
LEFT CHANNEL
RED
SPK
}
BLK
PROTECTION CIRCUIT
+18
–
U7
+
10K
1µF
FILM
10K
–18
10K
180K
10K
–
U7
10K
+
180K
1000pF
2N4403
4
10K
.1µF
11
10K
1N914
.1
µF
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