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Page 10 Model PA435X
© 2003 Xantech Corporation
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.
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 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.