REAR PANEL

Controls & Connections:

 

 

 

 

14

15

 

14

 

 

 

 

 

 

 

 

Speaker

 

 

Speaker

 

 

 

 

 

 

 

 

Output

 

 

Output

 

 

 

 

 

 

Channel 2

 

+

Voltage

+

 

Channel 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120V

 

240V

 

 

 

 

Mode

Ground

 

Impedance

 

 

 

 

 

Impedance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unbalanced

2

4

8

-

 

-

2

4

8

Unbalanced

Stereo

Balanced

 

 

 

 

 

 

 

Balanced

Bridged

Input

Input

 

 

 

 

 

 

 

Input

Input

 

9

11

12

13

16

 

13

12

11

10

FRONT PANEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLUME.L

 

 

 

 

 

 

 

 

VOLUME.R

 

 

20

18

16

14

 

 

 

 

 

 

18

16

14

12

 

 

12

 

 

 

 

 

 

20

 

 

24

 

 

10

 

 

 

 

 

 

24

 

 

10

28

 

 

8

 

 

L/MONITOR

 

 

 

28

 

 

8

34

 

 

 

 

 

 

 

 

34

 

 

 

 

 

6

POWER

 

 

 

 

POWER

 

 

6

40

 

 

4

&

H.P.F

 

 

H.P.F

&

40

 

 

4

 

 

 

 

PROTECT

PEAK

 

 

SG.IN

PROTECT PEAK

 

 

 

 

50

 

 

3

 

ON

 

ON

ON

 

50

 

 

3

60

 

 

2

 

OFF

 

OFF

OFF

 

60

 

 

2

 

 

 

1

 

 

 

 

 

 

70

 

 

1

 

 

 

0

 

 

 

 

 

 

 

 

 

0

 

 

-dB

 

 

 

 

 

 

 

 

-dB

 

 

1.POWER SWITCH:

To turn the unit ON or OFF, press the upper or lower portion of this button. The LED in the switch will light to indicate that the unit is ON.

CAUTION: Always turn on your power amplifier last, after all your other connected equipment, and always turn off your power amplifier before your other connected equipment.

2.MONITOR JACK:

This 1/4” TRS phone jack allows monitoring of the amplifier with stereo headphones.

3.SPEAKER ON/OFF SWITCHES:

Turn off the main speakers with this switch for private amplifier output monitoring via the MONITOR JACK.

4.SUB FILTER ON/OFF SWITCHES:

Use this to eliminate the lowest frequencies from your output signal. This steep low-cut filter will help eliminate common low frequency problems in your signal such as hum and other signal components that can cause speaker rumble and/or resonance, without noticeably degrading the integrity of the audio.

5.PEAK LED INDICATORS:

These LEDs illuminate if any section of the power amplifier’s output is within 3dB of clipping. Occasional blinking of these LEDs is acceptable, but if they remain on more than intermittently you should turn down either the amplifier’s level control or reduce the output level of the preceding component to avoid audible distortion.

6.PROTECTION LED INDICATORS:

These LEDs illuminate when the unit is overheated, or when a shorted load or DC is detected in the amplifier output. When either of these LEDs is lit up, turn OFF the power and check the output’s connection to verify that it is correct, then turn ON the power again. The amplifier will reset itself when the problem is corrected.

7.SIGNAL LEDS:

These LEDs illuminate to confirm the presence of an input audio signal at that channel of the amplifier.

8.LEVEL CONTROLS:

These control the level of signal coming into each channel. Turn these controls counterclockwise if the peak LEDs illuminate steadily (indicating too strong an input signal).

9.GROUND:

For safety, and to help eliminate ground loop hum, connect a properly grounded ground wire here.

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Nady Systems SRA 2150, SRA 2250 manual Front Panel
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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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