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Model PA635

Connecting the REMOTE MASTER ON/OFF CONTROL Terminals

As mentioned under "PA635 PANEL AND FEATURE DESCRIPTIONS", the REMOTE MASTER ON/OFF CONTROL terminals allow the power to the entire PA635 to be turned ON and OFF by a remotely applied DC Voltage. Fig. 10 is a typical applications using this feature.

Using a DC Power Adapter as a Control Voltage

Fig. 10 illustrates how a PA635 can be switched ON and OFF via the switched AC outlet on the rear of a preamplifier or other control center. When the preamplifier Power Switch is switched ON, power is applied to the DC adapter which in turn applies 5 V to 30 VDC to the PA635, switching it ON. Similarly, when the preamplifier is switched OFF, the DC voltage to the PA635 is removed, turning it OFF.

CAUTION: The output voltage of some adapters, such as the 781RG, drops off too slowly to provide a quick turnoff for the PA635. Therefore, when using any adapter (12 VDC max), always connect the included 220 Ohm 1 Watt resistor in shunt with the REMOTE MASTER ON/OFF CONTROL terminals as shown in Fig. 9. Failure to do so may result in blowing of the power line fuse (item #10, Fig. 3).

NOTE: Do not use the 220 Ohm resistor when connecting to the CO terminals of a ZPR68!

This must be the positive (+) lead (white striped lead on Xantech Power Supply Adapters)

PA635

(portion of rear panel)

Preamplifier, Control Center, etc.

 

COMMON

 

 

AUDIO

 

 

BUS

 

LEFT

RIGHT

WARNING

 

REMOTE

 

TURN POWER

 

OFF BEFORE

MASTER

LEVEL

CHANGING

(+) ON/OFF

MODES

RESET

CONTROL

 

 

®

--

+

CI

GROUND

STATUS

IR IN

5V to 12 VDC Adapter,

such as a Xantech 781RG,

plugged into a Switched AC Outlet on Preamplifier

CAUTION:

You must use the included

220 ohm resistor.

Figure 10 – Using the Remote Master On/Off Control Terminals

A Multi-Zone Power Managed System, using a ZPR68, a GATEKEEP-IRand a PA635

Fig. 10 shows a PA635 in a typical multi-room system with a Xantech ZPR68-10 six-zone preamp and a GATEKEEP-IR. The PA635 has been designed specifically to work well with both Zone and All-Zone ON/OFF management as rendered by the ZPR68-10.

In this example, the STATUS & GND output (0 to +12 VDC) of each zone of the ZPR68-10 is connected, via a 2- conductor lead, to the CI & GROUND of each amplifier pair on the PA635.

This causes the ON/OFF condition of any given ZPR68-10 Zone to turn it's corresponding amplifier pair ON/OFF (Standby ON/OFF).

Also, the common CO (control output, 0 to +12 VDC) from the ZPR68-10 is used to drive the REMOTE MASTER ON/OFF CONTROL terminals of the PA635.

© 2001 Xantech Corporation.

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Image 16
Xantech PA635 Connecting the Remote Master ON/OFF Control Terminals, Using a DC Power Adapter as a Control Voltage

PA635 specifications

The Xantech PA635 is a sophisticated audio amplifier designed to elevate the home entertainment experience. With its blend of power, versatility, and advanced technology, the PA635 stands out in the realm of multi-room audio solutions. This amplifier is a reliable choice for both professional installations and private home setups, catering to a diverse range of audio needs.

One of the main features of the Xantech PA635 is its impressive power output. This amplifier delivers a robust 35 watts per channel, allowing it to drive multiple speaker types with ease. It is capable of accommodating 6 channels, which can be particularly advantageous for larger home theater systems or multi-room audio setups. The configuration options offer flexibility, enabling users to tailor their audio experience to their preferences.

The PA635 employs advanced technology to enhance sound quality and ensure consistent performance. It features a high-efficiency design that minimizes heat generation, allowing for prolonged use without overheating. Additionally, the amplifier is equipped with an easy-to-use front panel for quick adjustments and LED indicators that provide visual feedback about the device's status.

Connectivity options are another highlight of the Xantech PA635. The amplifier supports both traditional and modern audio input methods, including RCA and line-level inputs. Moreover, it includes banana plug outputs for seamless speaker connections, ensuring a straightforward installation process. Its compatibility with various audio sources makes it versatile for integration into existing systems.

Another noteworthy characteristic of the PA635 is its compact form factor. The sleek design allows it to fit easily into tight spaces, making it ideal for small rooms or equipment racks. This space-saving feature does not compromise on performance, as the amplifier is built to deliver superior sound output in any environment.

Moreover, the Xantech PA635 boasts robust protection circuits to safeguard against overload and short circuits. This is particularly important in professional installations where reliability and safety are paramount. The amplifier's durability makes it a long-term investment for users seeking a dependable audio solution.

In summary, the Xantech PA635 stands out as a powerful, flexible audio amplifier with a range of features and technologies aimed at enhancing sound quality and user experience. Its combination of performance, connectivity, and compact design makes it an excellent choice for both home and professional audio systems. Whether for casual listening or immersive home theater experiences, the PA635 is designed to meet diverse audio needs with ease.