Nady Systems SRA 2150 Stereo Amplifier User Manual


 
10. STEREO/BRIDGE SELECT SWITCH:
This is used to select "STEREO" or "BRIDGE" mode operation. Before switching, verify that the output’s connection
is correct. The connections should be as follows:
STEREO MODE:
a. Mixer or EQ right channel line output to amplifier right channel line input
b. Mixer or EQ left channel line output to amplifier left channel line input
c. Amplifier right channel speaker output (+) to speaker (+) and right channel speaker (-) to speaker (-)
d. Amplifier left channel speaker output (+) to speaker (+) and left channel speaker (-) to speaker (-)
MONO BRIDGED MODE:
a. Mixer or EQ right channel line output to amplifier right channel line input
b. Amplifier right channel speaker output (+) to speaker (+) and left channel speaker output (+) to speaker (-)
c. (Optional) Connect a second speaker as above: amplifier right channel speaker output (+) to speaker (+) and
left channel speaker output (+) to speaker (-)
11. UNBALANCED INPUT JACKS (RCA):
These jacks are compatible with unbalanced input from components with RCA output jacks.
12. BALANCED INPUT CONNECTORS (1/4” TRS & XLR):
These 1/4” TRS (Tip Ring Sleeve) phone jacks and XLR jacks are compatible with balanced input and are wired as
Tip/Pin 3 = Cold (+), Ring/Pin 2 = Hot (-), and Sleeve/Pin 1 = Ground.
13. IMPEDANCE SWITCHES:
Use these switches to select the proper speaker load impedance for each channel: 2, 4, or 8 Ohms
14. OUTPUT CONNECTORS (1/4” Phone Jack & Binding Posts):
The speakers for each channel output can be connected either to the 1/4” phone jack or to the screw terminal binding
posts (banana jacks).
15. AC VOLTAGE SELECTOR SWITCH:
Before plugging in the power cord, check to see that the unit is set for the proper voltage for you area: ~115V (60Hz)
or ~230V (50Hz).
16. FUSE HOLDER & POWER CORD CONNECTOR:
This fuse holder contains an AC primary fuse. When this fuse blows, replace it with the same type fuse, size and
power rating (see SPECIFICATIONS). If it continuously blows, stop replacing the fuse and refer servicing to qualified
personnel.
CAUTION: After checking the AC supply voltage, be sure that the correct fuse is in the fuse holder.
The cord connector is used to connect the AC power source to your power amplifier.
CAUTION: DO NOT REMOVE THE CENTER GROUNDING PIN.
Controls & Connections:
4