Henry Engineering TwinMatch Handleiding


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HENRY ENGINEERING
503 Key Vista Drive
Sierra Madre, CA 91024
Tel: 626.355.3656
Fax: 626.355.0077
www.henr
y
en
g
.com
TWINMATCH
TM
IHF>PRO DUAL STEREO INTERFACE
DESCRIPTION
TWINMATCH is a level and impedance converter designed to interface consumer or "semi-professional"
equipment to professional studio gear. TwinMatch converts the outputs of unbalanced “IHF” (-10 dBv)
equipment to balanced Lo-Z lines at +4 dBm. Four channels of interface permit operation with a pair of
stereo audio sources, eg, two stereo CD players or R-DAT decks. All circuitry is active and direct coupled
for exceptional sonic accuracy.
INSTALLATION
Connect the unbalanced source(s) to the TwinMatch inputs via the RCA jacks on the rear panel. There
are two stereo inputs, labeled "1" and "2". Each stereo input has a Left and Right input jack.
The TwinMatch balanced outputs are via the male XLR connectors on the rear panel. The mating XLR
connectors should be wired as follows:
Pin 1 = Ground
Pin 2 = Signal HI
Pin 3 = Signal LO
Note: To drive an unbalanced load, connect to pins 1 and 2 ONLY. Do NOT short pin 3 to ground!
The TwinMatch will drive any load of 600 ohms or higher. It is not necessary to terminate the outputs.
ADJUSTMENT
Each channel of the TwinMatch has a gain adjustment. It is set at the factory for a gain of 14 db, so that
a –10 dBv input will produce an output of +4 dBm. The gains may be changed via the trimpots on the
front panel. The gain range is from +6 to +20 dB.
SPECIFICATIONS
INPUT LEVEL -10 dBv nominal
INPUT IMPED 25k ohms, unbalanced
GAIN +6 to +20 dB
OUTPUT LEVEL +4 dBm nominal, +26 dBm max
OUTPUT LOAD 600 ohms or higher per channel
FREQ RESPONSE DC to 20 kHz, +/- 0.25 dB
NOISE LEVEL 85 dB below +4 dBm output
DISTORTION .008% IM/THD
Specification subject to change without notice. Rev. 9/03
543
D
C
B
A
PRI
15V
230V
AC BLK SEC
1 / LEFT INPUT
1 / LEFT OUTPUT
1 / RIGHT INPUT
1 / RIGHT OUTPUT
2 / RIGHT INPUT
2 / LEFT INPUT
+15V
-15V
-15V
+15V
+15V
+15V
-15V
-15V
-15V
+15V
+15V
+15V
-15V
-15V
+15V
-15V
+15V
R2
10.0K, 1%
R20
10.0K, 1%
C13
.1uF
+
C12
330uF 25V
+
-
U1B
NE5532
5
6
7
8 4
R26 50K POT
1 3
2
C4
.001uF
R9 2.00K, 1%
R4 47, 1%
E1
C20
300
47pF,
R11 2.00K, 1%
R10 47, 1%
R3 2.00K, 1%
R6 47, 1%
C15
.1uF
C5
47pF, NPO
TP2
1
47p
+
-
U2A
NE5532
3
21
8 4
J5
NC3MAH
1
2
3
+
-
U3B
NE55
5
6
7
8 4
C17
.1uF
R15 2.00K, 1%
+
-
U4A
NE55
3
2
1
8 4
+
-
U2B
NE5532
5
67
8 4
R8
10.0K, 1%
C3
.001uF
C21
300pF, NPO
J1-3
RCA-413
5
4
R19
10.0K, 1%
TP1
+
-
U4B
NE55
5
6
7
8 4
R27 50K POT
1 3
2
C1
.001uF
J1-2
RCA-413
3
1
C9
.1uF
+
-
U3A
NE55
3
2
1
8 4
R25 50K POT
1 3
2
R14
10.0K, 1%
R1
10.0K, 1%
R17 2.00K, 1%
D2
1N4004
C6
47pF, NPO
J6
NC3MAH
1
2
3
C22
300
R7
10.0K, 1%
E6
J1-4
RCA-413
6
4
F1
115V: 250 ma; 230V: 125ma
R28 50K POT
1 3
2
1
3
2
5
6
7
R5 2.00K, 1%
R21 2.00K, 1%
R13
10.0K, 1%
J1-1
RCA-413
2
1
D4
1N4004
R29
3.9K, 5%
C19
300pF, NPO
Q1 LM7815
3
2
1
IN
GND
OUT
E7
D1
1N4004
+
-
U1A
NE5532
3
21
8 4
R23 2.00K, 1%
C2
.001uF
R12 47, 1%


Product specificaties

Merk: Henry Engineering
Categorie: Niet gecategoriseerd
Model: TwinMatch

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