Model PA1235X

Page 9

6.As a rule of thumb, use 18 gauge speaker wire for speaker runs up to 30' (9m), 16 gauge up to 70' (21m), and 14 gauge up to 150' (39m). The 4-terminal connectors accept wire sizes up to 12-gauge max.

7.Strip the insulation back about 1/4" (6mm) and twist the strands on each lead to prevent fraying.

CAUTION: After lead ends are inserted and the screws tightened down, be sure there are no free strands that could cause shorting!

Speaker Phasing

To obtain stable imaging and full bass response, it is imperative that stereo speakers be connected "in phase" with each other. You can verify this as follows:

a)If the "+" (positive) and "–" (negative) terminals on your speakers are correctly marked, and visible, and you have wired the system as shown in Figs. 5 and 7, then the system will be "in phase". No further action is required. Most manufacturers identify the positive terminal with a red binding post, a "+" sign, or a red dot.

b)If you are unsure of the markings, you can verify the phasing. Using a mono sound source, such as AM radio, alternately reverse the leads to one of the speakers. Pick the connection that delivers a solid center image between the speakers as well as best bass response.

Bridged Mode Connections

In general, it is recommended that the BRIDGED mode not be used in multi-room applications where several speakers are driven through room volume controls and the like. For such applications, use the STEREO mode. Use the BRIDGED mode for single speaker, higher power applications, such as in surround sound systems. Use speakers with an impedance rating of 8-Ohms minimum.

To make connections for the BRIDGED mode, follow the steps given before for stereo connections, but with the following differences:

1.You may connect the RCA-type patch cables from the OUTPUT jacks of the driving preamp or other source to either the LEFT or the RIGHT input jacks of the bridged pair, as shown in Fig. 6. Do this for just the amplifier pairs you wish to run in the bridged mode.

CAUTION: Be sure Power is OFF when connecting or switching the amp for BRIDGED operation.

2.Slide the MODE switch to the BRIDGED position.

NOTE: Do this only on the amplifier pairs you wish to run in the bridged mode!

3.Connect one speaker wire pair between the 4-terminal "SPEAKER" connectors on the PA1235X and the speakers as shown in Fig. 6. Be sure to use only the two outer terminals marked "+” and "–" on the 4- terminal connector as shown on the panel for BRIDGED connections.

NOTE: Only one speaker is connected per amplifier pair in the BRIDGED mode!

CAUTION: When operating in the BRIDGED mode (particularly when bench testing the amplifier) do not make a ground or any other kind of connection to the amplifier speaker terminals other than those to the individual speakers as shown. Failures caused by inappropriate connections are not covered under the warranty.

Connecting the REMOTE ON/OFF Jack

As mentioned under "PA1235X PANEL AND FEATURE DESCRIPTIONS", the REMOTE ON/OFF jack allows the power to the PA1235X to be turned ON and OFF by a remotely applied DC Voltage. Fig. 7 illustrates how a

© 2002 Xantech Corporation.

Page 8 Page 10
Page 9
Image 9
Xantech PA1235X installation instructions Speaker Phasing, Connecting the Remote ON/OFF Jack
Page 8 Page 10

PA1235X specifications

The Xantech PA1235X is a powerful, professional-grade amplifier that caters to the needs of both commercial and residential sound applications. With a robust design and advanced features, it is well-suited for use in various environments, including retail spaces, restaurants, and home theater systems.

One of the standout features of the PA1235X is its high power output. It delivers 35 watts per channel at 8 ohms, allowing it to drive speakers effectively in larger rooms while ensuring clear and dynamic sound reproduction. The amplifier also offers a total output of 70 watts when bridged, providing users with the versatility to adjust their setup according to the spatial requirements of the listening area.

The PA1235X employs Class D amplification technology, which is known for its energy efficiency and lightweight design. This feature not only reduces electricity consumption but also minimizes heat generation, making the amplifier suitable for prolonged use without the risk of overheating.

In addition to its power and efficiency, the PA1235X boasts a range of input options, including balanced and unbalanced connections. This flexibility allows users to connect a variety of audio sources, whether it be a microphone, mixer, or existing audio systems. The amplifier is equipped with RCA and XLR inputs, ensuring compatibility with professional and consumer-grade audio equipment alike.

Another notable characteristic of the Xantech PA1235X is its built-in protection circuitry. This safeguards the device against overheating, short circuits, and overloading, thereby extending its lifespan and maintaining reliable performance.

For added convenience, the amplifier features a front-panel volume control, allowing users to easily manage audio levels without needing to access a remote or external control unit.

The Xantech PA1235X is not only designed with performance in mind but also emphasizes user-friendliness. Its compact form factor and rack-mountable design make it ideal for integration into AV setups without taking up excessive space.

Overall, the Xantech PA1235X stands out for its combination of power, flexibility, and reliability. Whether for use in a professional setting or a personal audio setup, it delivers excellent sound quality and adaptability to meet diverse audio demands.
Top Page Image Contents