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Setup and Operation 

So much for self-congratulation.  Lets play some music! 
 
On a more sober note, please read and understand the operational instructions and 
safety issues associated with this product. 
 
All of us at Pass Laboratories put great effort into building a soundly engineered and 
superbly performing rugged product of lasting durability and value.  We understand 
that things occasionally go wrong, but we are here to support you if that happens.  If 
you have any questions or problems, please contact either your dealer or the 
factory. 
 
The support email address is: 
 

[email protected]

 

 
If you don't get a good enough answer, you can appeal to 
 

[email protected]

 

 
or even 
 

[email protected]

 

 
 
It is usually helpful to have your product's serial number available when you contact 
the factory.  It is by serial number that we track all hardware and software details 
and history of an individual product unit. 
 
 

Power Connection 

As with all audio electronics the power cable should be the last thing attached and 
the first one removed any time you hook up or remove equipment from the signal 
chain. 
 
First 
The preamplifier's voltage and current ratings are indicated by affixed tag on the rear 
of the preamplifier's power supply / control module.  The tag will indicate 240 volts, 
220 volts, 120 volts or 100 volts. 
 
A 2.0 amp 3AG slow blow fuse is provided with stereo 100 –120 volt units and a 1.0 
amp 3AG slow blow fuse is provided with stereo 220 – 240 volt units. 
 
Additional channels beyond the normal two may require a different fuse value, 
please contact the factory for your specific application. 
 
The input frequency rating of the power-supply is presumed 50-60 Hz in all 
instances.  Some individuals may wish to use a power regeneration apparatus, and 
slightly higher lines frequency is presumed acceptable.  The preamplifier typically 

Summary of Contents for XP-30

Page 1: ...XP 30 Owner s Manual Rev 0 Oct 3 2011 ...

Page 2: ...We want you to anticipate listening to your entire record collection again and again As part of the process in developing the XP 30 we began by uniformly upgrading the playback systems of our listening group We do not do AB or ABX testing our people live with prototypes as long as they like in their own system and only one component gets changed at a time This allows a close duplication of our cus...

Page 3: ...ange of 100 dB in precise 1 dB steps Both outputs of each channel are offered as single ended and balanced outputs having the same gain and impedance and both may be used simultaneously with no degradation There are five 5 regular inputs a special home theater bypass input and tape input for those needing any side loops for recording or signal processing The control chassis also supports a mono fu...

Page 4: ...wider bandwidth than its predecessor and also features a dramatically higher input impedance This improved version of our symmetric topology sounds so exquisite that that it has also been adopted in the new Dual Chassis Amplifier prototypes Pass Labs has made large purchases of discontinued Toshiba Jfets and Mosfets to support production of this new gain stage for the next ten years Each of these ...

Page 5: ...ber that we track all hardware and software details and history of an individual product unit Power Connection As with all audio electronics the power cable should be the last thing attached and the first one removed any time you hook up or remove equipment from the signal chain First The preamplifier s voltage and current ratings are indicated by affixed tag on the rear of the preamplifier s powe...

Page 6: ...ut a little is helpful On the rear of each control chassis are two identical DIN 25 sockets in parallel with one another You may connect either socket to the control chassis as previously indicated they are identical The second socket provides daisy chain capability for additional gain channels The DIN 25 connecting cables only communicate power and control commands to the gain stages At no time d...

Page 7: ... home theater Pass thru command is simply a software setting that selects input 6 and sets the gain to 0 dB with a minimum of keystrokes The keystroke shortcut selects input 6 and slowly advances the volume control to step 89 starting from 0 The slow advance of level is intentional 0dB step 89 is appropriate for a home theater processor it is however dangerously high for most source components As ...

Page 8: ...tion is selected only from the front panel it is not available from the hand remote When mono is selected rather than creating a true mono signal it creates a frequency dependent blend of signal from two chassis The blend has been chosen such that it minimizes noise while maximizing information transfer The two blended gain chassis are joined to one another by a special XLR cable The blend functio...

Page 9: ...y safety rated by the necessary local authority Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on abraded or pinched by items placed on or against them paying particular attention to cords where they enter plugs or exit from a device Never under any circumstance insert a cut or damaged power cord into a mains power socket Power and Signal Cables ...

Page 10: ... total 60 ohm per phase Slave balanced 200 ohms total 100 ohm per phase Main RCA 120 ohm Slave RCA 120 ohm Input impedance 42 k Ohm CMRR typical 65 dB 1KHz Crosstalk broadband typical 100 dB 1KHz Signal to Noise Ratio 110 dB Ref 5V Residual Noise 20 Hz 20 kHz 20 uV un weighted max Power Consumption 45 watts as two channel 15 watts additional per additional channel Dimensions chassis 17 W x 12 D x ...

Page 11: ...nty on factory repair is 60 days and covers only the scope of the original repair Non North America customers should consult with their original Pass Labs dealer or distributor for warranty repair instruction prior to contacting the factory or shipping product to the factory for repair Non North American product must be returned to the country of origin for warrantee service Foreign distributors a...

Page 12: ...cloned product Pass Laboratories does not offer products in voltages intended for international markets either to authorized Pass Labs dealers or to third parties located in the United States or Canada For more information please contact Pass Laboratories Inc 2011 Pass Laboratories Inc Pass PASS Pass Labs Pass Laboratories Supersymmetery Aleph and Zen are all registered trademarks of Pass Laborato...

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