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10

XP-25 Owner’s Manual

improve the measured performance.

2) The characteristic of gain devices and their specific use is

important. Individual variations in performance between like

devices is important, as are differences in topological usage.

All signal bearing devices contribute to the degradation, but

there are some different characteristics that are worth

attention. Low order nonlinearities are largely additive in

quality, bringing false warmth and coloration, while abrupt high

order nonlinearities add harshness.

3) Maximum intrinsic linearity is desired. This is the

performance of the gain stages before feedback is applied.

Experience suggests that feedback is a subtractive process; it

removes information from the signal. In many older designs,

poor intrinsic linearity has been corrected out by large

application of feedback, resulting in loss of warmth, space 

and detail.

We give these precepts a great deal of thought in the design and 

voicing of product so that you do not have to.  You only need to 

address the cartridge loading till it sounds good to you.  Once set you 

can relax and focus on the results.

WARRANTY:

Please check with the factory authorized distributor in the country where 

you are purchasing this product for specific warranty information.

All Pass Laboratories products purchased new from an authorized Pass 

Laboratories dealer in North America are covered by a transferable, limited 

3-year warranty. This warranty includes all parts and labor charges incurred 

at the factory or factory specified repair facility, exclusive of any subsequent 

or consequential damages. Damage due to physical abuse is specifically 

excluded under this warranty.

For this warranty to apply the customer is responsible for returning the 

product unmodified to the factory within the specified warranty period.  

The customer assumes all responsibility for shipping and insurance to 

and from the factory or a factory specified repair facility. The conditions 

and stipulations of this Pass Laboratories warranty only applies to units 

originally sold new through an authorized dealer.  Warranty 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. 

Содержание XP-25

Страница 1: ...1 XP 25 Owner s Manual pass TM XP 25 Owner s Manual Feb 4 2010 ...

Страница 2: ... sound with dramatic detail and spectacular layering Those listeners familiar with Pass Laboratories previous phono pre amps will be struck by the clear delineation of bass notes in the XP 25 and the greater sense of music in a real physical space Like some great musicians we get requests You spoke and we listened so that you can listen better Now the XP 25 a product designed at the intersections ...

Страница 3: ... had clearly taken a page from the automotiveandmotorcycleracingcognoscenti whoseengineerswho were doing everything in their power to lower un sprung mass in an effort to get tires to say in intimate contact with the roughest terrain at the highest possible speeds In both worlds the ability to accurately track the impossible landscape is the ultimate goal minimalmovingmassassociatedwithacompliants...

Страница 4: ...ring either another XP 25 phono stage or a Pass Laboratories XP 20 pre amplifier without degradation of measured or perceived performance Consumers frequently ask us if they may substitute a Din 25 cable of their choice for the one Pass Laboratories supplies The answer is yes provided that cable carries all the necessary legal approvals For those of you so inclined please pick a shielded and filte...

Страница 5: ...ge indicated on the product is consistent with the nominal voltage supplied at your location All XP25 products are protected by a voltage specific type 3AG fuse 1 4 x 1 1 4 For 100 Volts ac and 120 Volts ac the fuse will be 1 amp for 220 Volts ac and 240 Volts ac the fuse will be 1 2 amp In all instances the fuse will have a slow blow time constant Substitution of another time constant other than ...

Страница 6: ...h a series loading of 47k ohms and 100 pf of parallel capacitance Like gain these settings too are selectable from the front panel of the XP25 Presuming 47k ohm in the case of moving magnet greatest benefit comes from exploring the pallet of available capacitive loading choices Infrequently moving magnet cartridges will perform best at other than 47k ohm but that would be an exception Moving Coil ...

Страница 7: ...ds best for the listener Specifically in selecting a cartridge load we will be listening for a compromise loading which sounds best across the whole audio spectrum and specifically not that loading which optimizes one cut on one LP The front panel controls of the XP 25 load each channel of the phono cartridge independently through closely to preserve the best possible spatial elements of recording...

Страница 8: ...peat the listening test I am sure you get the idea it is not complicated but it can be time consuming Capacitive loading follows the same rigor and affects the finer points of resistive loading The final and optimal setting will require alternating between resistive and reactive loading elements peaking each element in turn until no further gains are achieved Capacitive loading will not affect mov...

Страница 9: ...sight but are no substitute for human judgment of that which is pleasant As in art classic audio components are the results of individual and collective efforts that reflect a coherent underlying goal and philosophy by the major participants If successful they make both a subjective and objective statement of quality which is meant to illicit appreciation in the final product It is essential that ...

Страница 10: ...an relax and focus on the results WARRANTY Please check with the factory authorized distributor in the country where you are purchasing this product for specific warranty information All Pass Laboratories products purchased new from an authorized Pass Laboratories dealer in NorthAmerica are covered by a transferable limited 3 year warranty This warranty includes all parts and labor charges incurre...

Страница 11: ...ld a modified product be returned to the factory for repair the owner will be required to pay all necessary charges for the repair in addition to those charges required to return the product to it s original configuration In the case of safety issues no product shall be returned to the customer without those safety issues being corrected to the most recent accepted standards Removaloralterationofo...

Страница 12: ...dB 47 Single ended 66 dB 60 SE 76 dB 70 SE RIAA response plus minus 1 dB 20 20 KHz Distortion 005 THD 1mV MC input 002 THD 10mV MM input Maximum Output 22 volts rms Output Impedance 150 150 ohms Input Impedance 100pF 750pF on any input 30 ohm 47K ohm any input Unweighted Noise 93 dB ref 10 mV MM 85 dB ref 1 mV MC Power consumption 25 watts Dimensions 2 17 W x 12 D x 4 H Shipping Weight 55 pounds i...

Страница 13: ... one that is fully 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 a...

Страница 14: ...14 XP 25 Owner s Manual ...

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