Xantech PA435X installation instructions Speaker Phasing, Mono Mode Connections

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Speaker Phasing

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Model PA435X

5.Be sure to observe correct polarity by connecting the "+" and "–" terminal from each channel on the PA435X to the corresponding "+" and "–" terminals on each speaker. This will ensure correct "phasing" - see Fig. 6 and Speaker Phasing below. Since the connectors are removable, you may unplug them for ease of lead assembly.

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.

Mono Mode ConnectionsCAUTION: 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 6, 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.

Mono Mode Connections

1.Using good quality RCA-type patch cables connect mono output jack of the driving preamp to the LEFT or RIGHT input jack on the desired channel of the PA435X. Both the LEFT and RIGHT input jacks of the PA435X are active in Mono Mode. If both jacks are utilized simultaneously, the signals placed on the input terminals are ‘summed’ together.

2.Slide the MODE switch to the MONO position.

3.Using good quality speaker wire, connect the individual speaker leads to the 4-terminal "SPEAKER" connectors on the PA435. Both the LEFT and RIGHT Speaker outputs will be active with the identical program output

4.The PA435X is 4-Ohm safe in Mono Mode. Make sure the impedance presented to the speaker terminals by the speakers (or any combination of speakers) is 4-Ohms minimum.

5.Be sure to observe correct polarity by connecting the "+" and "–" terminal from each channel on the PA435X to the corresponding "+" and "–" terminals on each speaker. This will ensure correct "phasing" - see Fig. 6 and Speaker Phasing below. Since the connectors are removable, you may unplug them for ease of lead assembly.

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.

© 2003 Xantech Corporation

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Contents INSTALLATION INSTRUCTIONS MODEL PA435X FOUR CHANNEL POWER AMPLIFIERPage NO USER-SERVICEABLEPARTS INSIDEREFER SERVICING TO QUALIFIED SERVICE PERSONNEL Model PA435XGENERAL INFORMATION Figure 1 The Model PA435X AmplifierModel PA435X Page2003 Xantech Corporation PA435X PANEL AND FEATURE DESCRIPTIONS Page Model PA435X INSTALLATION - PHYSICAL LOCATION AND MOUNTING PA435XFigure 6 - PA435X Stereo Mode Connections CONNECTING THE PA435XStereo Mode Connections Speaker Phasing Mono Mode ConnectionsFigure 7 - Bridged Mode Connections Bridged Mode ConnectionsOn/Off Standby Control Connecting the REMOTE MASTER ON/OFF MUTE CONTROLMute Control Model PA435X Model PA435X Page2003 Xantech Corporation PROBLEM TROUBLE SHOOTINGPROBABLE CAUSE AND SOLUTION SPECIFICATIONS Page Model PA435X2003 Xantech Corporation Model PA435X Page2003 Xantech Corporation Page Model PA435X2003 Xantech Corporation XANTECH CORPORATION 12950 Bradley Avenue, Sylmar CA
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