Controls & Connections:

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.

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Nady Systems SRA 2250 STEREO/BRIDGE Select Switch, Unbalanced Input Jacks RCA, Balanced Input Connectors 1/4 TRS & XLR
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SRA 2250, SRA 2150 specifications

Nady Systems is renowned for its innovative audio solutions, and their SRA 2150 and SRA 2250 models exemplify this commitment to quality and performance in the realm of wireless communication systems. Designed primarily for professional audio applications, these wireless systems are utilized in venues ranging from large concert halls to smaller intimate settings.

The SRA 2150 offers a frequency range of 215 to 216 MHz, making it a reliable choice for interference-free operation. This model features dual-channel capability, enabling users to connect two wireless transmitters simultaneously, which is ideal for duets or duo performances. With an impressive operating range of up to 300 feet, the SRA 2150 ensures that performers can move freely on stage without compromising audio quality.

Advanced diversity technology is a hallmark of the SRA 2150, which minimizes dropouts and enhances signal reliability. The system incorporates both space diversity and frequency diversity, effectively doubling the chances of receiving a clear signal by utilizing two antennas and alternating frequencies. This functionality is especially critical in environments packed with electronic devices that can create interference.

On the other hand, the SRA 2250 takes things a step further. Featuring a wider frequency range, from 470 to 490 MHz, it provides even greater flexibility in frequency selection, allowing users to navigate crowded RF environments with ease. This model also supports dual-channel operation, but with advanced digital encoding and modulation technologies for superior audio fidelity.

Additional features of the SRA 2250 include a high-quality signal processing section, which ensures that the audio output is clean and lifelike. Its durable, rack-mountable design allows for easy integration into existing setups, making it a favorite among audio professionals. The user-friendly interface, complete with LED indicators for signal strength and audio levels, ensures that sound engineers can monitor performance easily during use.

In terms of battery life, both models are designed with power efficiency in mind. They offer extended operating hours, reducing the need for frequent battery changes during events.

Both the SRA 2150 and SRA 2250 from Nady Systems are outstanding choices for those seeking reliability and performance, making them ideal for musicians, speakers, and audio professionals who require high-quality wireless transmission in their audio productions. With their robust features, these systems create seamless audio experiences that enhance live performances and presentations.
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