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Model PA435X 

 

Page 11 

 

© 2003 Xantech Corporation 

 

 

Figure 7 – Bridged Mode Connections 

 

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 into or out of 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 PA435X 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! 

 

Summary of Contents for PA435X

Page 1: ...FORMATION 3 PA435X PANEL AND FEATURE DESCRIPTIONS 5 INSTALLATION PHYSICAL LOCATION AND MOUNTING 8 CONNECTING THE PA435X 9 Stereo Mode Connections 9 Speaker Phasing 10 Mono Mode Connections 10 Bridged...

Page 2: ...the manufacturer 8 Ventilation The appliance should be situated so that its location or position does not interfere with its proper ventilation For example the appliance should not be situated on a b...

Page 3: ...s or 2 Stereo Zone outputs One 70 and two 35 watt amplifiers 1 Mono 70 Watt and 1 Stereo 35 watt output Two 70 watt amplifiers single Zone Stereo 70 watt output Remote ON OFF Control Jacks C1 C2 These...

Page 4: ...ate RED After the amp stops clipping the LED will return to its normal state 5 6 seconds after clipping stops Auto Protection Circuit This feature protects the PA435X if a short or very low impedance...

Page 5: ...re OFF via the CI1 and CI2 Control Inputs NOTE The rear power switch Item 15 needs to be in the ON I position for both modes of operation 3 Status LED Indicators These indicators one for each channel...

Page 6: ...ume then set this control to the maximum volume that the client desires for a given zone or room This prevents the system from being driven to unwanted power levels NOTE To set the Input Level Control...

Page 7: ...ASTER ON OFF and MUTE CONTROL CI1 CI2 These two Stereo Mini Jack connections allow each individual channel pair of the PA435X to be powered ON and OFF and muted by a control voltage ranging between 5...

Page 8: ...the escape of warm air NOTE Do not remove feet in shelf top installations 3 If the cabinet contains other heat generating components you will have to pay even closer attention to adequate ventilation...

Page 9: ...ons 1 Using good quality RCA type patch cables connect the L and R OUTPUT jacks of the MRC88 Pre Amp Output or other driving preamp to the LEFT and RIGHT input jacks on the PA435X Do this for each amp...

Page 10: ...M 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 goo...

Page 11: ...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 th...

Page 12: ...via the MRC88 Zone 7 8 Control Outputs CO1 and CO2 On Off Standby Control Whenever a 5 to 30v dc voltage is applied to the TIP of the 3 5mm Stereo jack the associated Amplifier channel will be activat...

Page 13: ...tep 1 connect the Preamp Outputs of Zone 8 on the MRC88 to the Left and Right Audio Inputs labeled B on the rear of the PA435X 3 Using two 3 5mm Stereo Mini Plug cables connect the Remote Amp CO1 jack...

Page 14: ...m When any one of the zones is turned on the PA435X is powered ON Similarly when either Zone is powered down the associated amplifier pair on the PA435X is put into STANDBY Mode When both Zones are po...

Page 15: ...tly set to BRIDGED position Set to STEREO position See Fig 6 Sound cuts in and out every 3 to 5 seconds Speaker load impedance is less than 4 Ohms for Stereo mode or less than 8 Ohms for Bridged mode...

Page 16: ...onse at 1 Watt 3dB 12 Hz to 55 kHz Input Sensitivity at rated power stereo mode input gain Max 0 2 V Default 1 0 V Minimum 3V Input Impedance Local Inputs 22 kOhms Common Audio Buss Inputs 70kOhms Pow...

Page 17: ...Model PA435X Page 17 2003 Xantech Corporation...

Page 18: ...Page 18 Model PA435X 2003 Xantech Corporation...

Page 19: ...Model PA435X Page 19 2003 Xantech Corporation...

Page 20: ...Page 20 Model PA435X 2003 Xantech Corporation XANTECH CORPORATION 12950 Bradley Avenue Sylmar CA 91342 3829 phone 818 362 0353 fax 818 362 9506 www xantech com Part No 08901190 Rev A 01 31 2003...

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