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16

SPECIFICATIONS

Number of Channels .....................................................................................................................................................12
Power Output

Rated Continuous Power, Each Channel: 

 ............................................. 8 Ohms  ..........................

35 Watts

All 12 channels simultaneously driven,
20 Hz to 20 kHz, at rated THD.

Short Term Continuous, Each Channel: ................. 8 Ohms  ............................................................ > 55 Watts
(2 channels driven, 1 kHz, at rated THD)

4 Ohms  ............................................................ > 80 Watts

Bridged Power Output:  .......................................... 8 Ohms  .......................................................... > 150 Watts

(Short Term Continuous, one pair driven @ 1 kHz, at rated THD)

Rated THD

........................................................................................................................................................

< 0.08 %

Damping Factor (@ 50 Hz, 1/2 rated power)  ....................................................................................................... > 100
S/N Ratio  (A Weighted, Shorted Inputs, ref. to Rated Power)  ....................................................................... > 100 dB
Frequency Response (@ 1 Watt, 

±

 3 dB)  ............................................................................................ 12 Hz to 55 kHz

Input Sensitivity (@ Rated Power, stereo mode) ............... Input Gain (IR Controlled Setting)

Max.  ......................................................................... 0.5 V
Default  ...................................................................... 1.0 V
Min.  ............................................................................. Off

Input Impedance ................................................................. LOCAL Inputs .................................................... 22 kOhms

COMMON AUDIO BUS Inputs .......................... 70 kOhms

Power Source ................................................................................. 120 VAC, 60 Hz  (240 V Version: 240 VAC, 50 Hz)
Power Consumption ........................................................... No Signal .....................................  30 Watts  (0.25/0.13 A)

12 chan @ 1/10 rated power .........  360 Watts  (3.0/1.5 A)
12 chan @ rated power ................ 1090 Watts  (9.1/4.6 A)
6 chan Bridged @ 8.5 watts/chan .. 720 Watts  (6.0/3.0 A)

Remote ON/OFF and CI Voltage/Current .......................................................... +5 V to +30 VDC (16 mA @ +12 VDC)
Default IR Code Group (all amplifier pairs) ................................................................................................................

 A0

Line Fuse Rating .........................

120 V Version:

 10 A Slow Blow 220 VAC. 

240 V Version:

 5 A Time-Lag 250 VAC)

Dimensions ............................................................................  19" (483mm) W x 5-1/4" (133mm) H x 15.5" (394mm) D
Weight ................................................................................................................................................ 35.75 lbs (16.3kg)

PA1235

3-9-01

Rev.C

Summary of Contents for PA1235

Page 1: ...arge single multiple filtered power supply delivers high quality at a reasonable price IR Controlled Volume Level Volume can be ramped from zero output to maximum for individual channel pairs or as gr...

Page 2: ...12 Volt common CO Control Output on the Xantech ZPR68 to power one or more PA1235 s ON and OFF automatically with first zone ON and last zone OFF commands Default settings As received from the factor...

Page 3: ...range within 5 dB of MAX V the LED color changes from Green to Red NOTE Red indicates that volume is approaching maximum not an indication of power output level 5 Line Inputs These RCA type jacks are...

Page 4: ...VDC output 9V 70 mA with ON condition 0 Volts output OFF Standby GROUND Ground for IR IN STATUS out CI in CI Control Input Use for control of Standby ON OFF of amplifier pairs if desired instead of b...

Page 5: ...l amplifier pairs item 11 except they apply to all amplifier pairs in common That is IR commands for Volume Mute etc control all amplifier pairs together NOTE Individual control of amplifier pairs is...

Page 6: ...en the CI terminal is driven high with an external control voltage Refer also to items 9 and 11 Fig 3 4 C BAL Command Instantly returns the balance to the Center position equal volume in each channel...

Page 7: ...s in the PA1235 are set to code group number A0 Be sure to set the RC68 to the same number It may be necessary to change the PA1235 amplifier pairs to different code groups if you wish to address each...

Page 8: ...nd screws supplied NOTE You should consider some sort of rear support for rack mounted units when used in mobile applications or when located in seismically active areas CONNECTING THE PA1235 When mak...

Page 9: ...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 T...

Page 10: ...control to the RS41AV and the Source Components and to power the keypads and IR receivers three leads are connected between the CB18 and a 789 44 Connecting Block 6 Since a common IR bus is used to k...

Page 11: ...R CA AC 120V 60 HZ 4 AMP LEVEL RESET RIGHT 0 9 8 6 7 4 5 2 3 1 GND 12V CB18 Parallel Connecting Block 780 80 J Box IR Receiver ROOM 2 R L ST G V IR ROOM 1 R L Smart Pad 3 ST G V IR IR CONFIRM V V POWE...

Page 12: ...ion in each room It also carries a COMMON IR signal to a 789 44 Connecting Block for control of the RS41AV Remote Switcher and the Source Components 2 Note that the ZONE numbers on the 796 20 do not a...

Page 13: ...EKEEP IR The PA1235 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...

Page 14: ...IN G 12 IN G 12 IN G ZONE 6 ZONE 5 ZONE 4 ZONE IR INPUTS 12 IN G 12 IN G 12 IN G A B A B A B ZONE 4 ZONE 5 ZONE 6 12 OUT G SYLMAR CA MADE IN U S A ZONE EMITTERS ZONE EMITTERS 796 20 SIX ZONE CONNECTI...

Page 15: ...does not turn OFF when REMOTE input voltage goes to 0 Volts Be sure that the POWER switch item 3 Fig 2 is set to the MANUAL OFF Out position 5 PA1235 becomes very warm shuts OFF but does not come bac...

Page 16: ...z to 55 kHz Input Sensitivity Rated Power stereo mode Input Gain IR Controlled Setting Max 0 5 V Default 1 0 V Min Off Input Impedance LOCAL Inputs 22 kOhms COMMON AUDIO BUS Inputs 70 kOhms Power Sour...

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