System Connections - NHT A-10 Owner's Manual

SYSTEM CONNECTIONS:

CAUTION: MAKE ALL CONNECTIONS WITH THE AC POWER OFF!
CAUTION: CONNECTING THE OUTPUT OF THE A-10 CONTROL AMPLIFIER TO ANY
EQUIPMENT OTHER THAN THE A-10 MONITOR MAY CAUSE EQUIPMENT DAMAGE.
CONTROL AMPLIFIER INPUT SECTION: The A-10 Control Amplifier accepts both balanced and unbalanced
inputs on either XLR or 1/4" TRS connectors. These connectors are hardwired in parallel within the A-10 to allow for
convenient equipment chaining, but only one signal source should be physically connected to the unit at any time. Figure
3a indicates proper wiring protocol for each type of connector. Since there are many different connector types and signal
levels employed by source equipment, some experimentation may be necessary, keeping in mind that A-10 can accept a
wide range of signals and has an input sensitivity control on the front panel.
2
1
3
XLR
Fig. 3a Balanced Wiring Diagram
SPEAKER CABLE CONNECTIONS: The A-10 includes two 20' special purpose cables to connect the Control unit to
the Monitors. While these cables look similar to standard microphone cables, they are constructed with lower and more
consistent conductor impedance. Portions of the A-10's crossover circuitry are located in both the amplifier and speaker
enclosures, and the cables supplied are an important part of this electrical network. This allows the speaker cables to
function as a neutral and transparent component in the system. Replacing or extending the supplied cables with any other
type will have a varying, and only partly predictable impact on the sound of the A-10. If your installation requires the use
of alternative cables, you may consult the supplied table listing our measurement data on a variety of cable types. Be sure
they are wired as shown in Fig. 3a. These considerations aside, using the supplied NHTPro cables to connect the control
amplifier is quite simple and straight forward. Both the amplifier and the monitors are marked with the appropriate "left"
and "right"channels. Fit the XLR connectors into the corresponding connectors on the control amplifier and
monitors until the connector locks.
WARNING: IF USING CABLES OTHER THAN THOSE SUPPLIED WITH THIS SYSTEM, BE SURE
THAT NO CONDUCTOR IS WIRED TO THE XLR CASING. FAILURE TO DO SO MAY
CONSTITUTE A RISK OF ELECTRIC SHOCK.
A-10 MONITOR
RIGHT
INPUT VOLTAGE
2
PIN SIGNAL PIN SIGNAL
3
1 GND
1
+
2
_
3
TRS
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: SHOCK HAZARD-DO NOT OPEN.
AVIS: RISQUE DU CHOC ELECTRONIQUE-
NE PAS OUVRIR.
CAUTION:
FOR CONTINUED PROTECTION AGAINST
RISK OF FIRE REPLACE ONLY WITH SAME
TYPE 250V FUSE.
FUSE TYPE:
T5A 250V FOR 110/120V.
U L
T3A 250V FOR 220/240V.
50/60 Hz - 600W
Fig. 4 A-10 Control Amplifier Rear Panel
SOURCE
+ (SIGNAL)
- (GND)
RIGHT
LEFT
INPUT
2
PIN SIGNAL PIN SIGNAL
3
1 GND
1
2 1
+
2
LISTED LISTED _
3 3
XLR TRS
AUDIO EQUIP AUDIO EQUIP
Shield
Fig. 3b Unbalanced Wiring Diagram
A-10 MONITOR
NHTPro
LEFT
MODEL A-10 MONITOR POWER MODULE.
SERIAL NO: A10-A-10001
NHTPro.
BENICIA, CALIFORNIA, U.S.A.
MADE IN TAIWAN G1
CAUTION:
CONNECTING OUTPUTS TO ANY
PRODUCT OTHER THAN NHTPro
A-10 MONITOR MAY RESULT IN
SEVERE EQUIPMENT DAMAGE.
NHT is a registered trademark of the Recoton Corporation.
A-10 INPUT
2
3
1