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8

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s

 Preamp Owner’s Manual

the upper bank represents left channel, the lower bank represents the 

right channel.

Viewing the control chassis from the front.

Extreme right hand side is the rotary volume control opto encoder.  

The knob of  the opto encoder lets you manually raise or lower the 

volume in 0.5 dB steps from –89.5dB to + 9.5dB (100 discrete steps).

Left of  center on the front panel is the vacuum florescent which 

shows all operational characteristics of  the preamp.

Underneath the vacuum florescent display, four small push buttons 

and window for the IR receiver (remote control function)

Buttons are labeled “Mute, Mode, Input < and >”

MUTE:  Pressing the mute button once, quiets the output of the Xs-

Preamp.  Pressing the button a second time restores normal output.

MODE:  Pressing the mode button, brings up the status of the slave 

(auxillary) output.  The relative level of  the Slave (Aux) output can 

then be set by the INPUT < and > buttons on the Xs-Pre front 

panel.  This function is only available on the front panel.  A second 

pressing of  the mode button reverts the display back to normal 

status and returns the INPUT< and > to their normal function of  

manual input selection.

INPUT < and >: A single press on either of these buttons 

increments the input selection for rear panel inputs (XLR or RCA) 

selecting inputs 1-5 in the “normal” mode.  In the “AUX” mode 

Содержание Xs Preamp

Страница 1: ...1 Xs Preamp Owner s Manual PASS TM Xs Preamp Owner s Manual Sept 2013 ...

Страница 2: ...ence is that the Xs comes in only two chassis where the XP 30 had at least three chassis one for supply and control and one chassis per channel for as many channels as you might reasonably want The Xs is designed solely for two channel operation and it fits in two larger boxes The XP 30 had a few unique features among them independently adjustable dual output sets for use in bi amping and the high...

Страница 3: ...he XP 30 separate chassis Each channel and the digital control circuits have their own isolated supplies each mounted on it s own board in a separate chassis The three separate power supplies use the lowest noise transformers available from Plitron and they incorporate EMI filters on the AC line input secondary output fast soft recovery rectifiers large storage capacitance and extensive regulation...

Страница 4: ...nding prong The grounding prong is essential for personal safety and proper operation of this product If the grounding prong does not fit your outlet please consult an electrician and have the obsolete receptacle updated before operating this device Power Cords Pass Labs provides a power supply cord that meets all legislated requirements for the market in which the product was originally sold If y...

Страница 5: ... apparatus has been damaged in any way such as when a power cord is damage when the device has been exposed to moisture or liquids been dropped or does not operate normally in any way For Units With Externally Accessible Fuse Receptacle Unplug the device from all sources of power before changing or inspecting any fuse Replace fuse only with one of same physical size type and rating as that specifi...

Страница 6: ...dependent chassis connected to each other by twin umbilical cable terminated at both ends with a powerCON connector The connector should never be attached or removed from either chassis with the power supply chassis attached to mains power Once the Xs Preamp chassis are placed in their physical location you may start making input and output connections you may wish to reference the following secti...

Страница 7: ... used is always the first to be removed and the last to be connected no exceptions At this point you should be ready to play music The powersupply chassis connects to the electrical mains by a standard IEC 320 detachable power cord and to the control chassis by two 1 5 m powerCON umbilicals On the rear of the power supply chassis is a single IEC 320 power inlet for connection to the mains below a ...

Страница 8: ... remote control function Buttons are labeled Mute Mode Input and MUTE Pressing the mute button once quiets the output of the Xs Preamp Pressing the button a second time restores normal output MODE Pressing the mode button brings up the status of the slave auxillary output The relative level of the Slave Aux output can then be set by the INPUT and buttons on the Xs Pre front panel This function is ...

Страница 9: ...to a maximum of 9 5dB Volume v decreases the output level in 0 5 dB steps to a minimum of 89 5 dB Pass Thru is a multi step software operation that selects the pass thru input virtual input 6 and slowly ramps the gain up to 0 dB At any time during the ramp up period a second button push will cancel the Pass Thru command and operation Pass thru is intended to be used with a multi channel processor ...

Страница 10: ...d XLR You may use a mix of RCA and XLR not however on the same channel RCA inputs will function without the jumper but gain will be low by 6dB and noise will be up by a like amount The Pass Thru input deserves special mention Pass Thru is identical to all other inputs with one exception Pass Thru is associated with a software sequence that sets the gain of that input to 0 dB specific for use with ...

Страница 11: ... the volume control directly in 0 5 dB steps 89 5 dB though 9 5 dB as indicated on the main display as true gain figures The Slave auxiliary outputs may be set equal to or less than the levels of the Master main outputs Once set from the front panel of the control chassis the Slave auxiliary outputs will accurately track the Master main from either the front panel volume control or the hand remote...

Страница 12: ...cord rated at 15 amps The safety ground is provided by this power cord and attached at the chassis in the conventional approved manner The AC power input to the power supply runs through an RF filter which reduces high frequency noise coming into and going out of the amplifier power supply This filter and the safety ground both depend upon a quality earth ground from the ground pin on the power co...

Страница 13: ...ories Supersymmetery Aleph and Zen and are all registered trademarks of Pass Laboratories Inc and all rights thereto are protected by law PASS Pass Laboratories Inc 13395 New Airport Rd Suite G Auburn CA 95602 voice 530 878 5350 fax 530 878 5358 web passlabs com ...

Страница 14: ...er warranty service on Pass Laboratories product that they have imported verifiable by serial number Please note Conditions of warranty service and customer rights for product purchased outside the United States may vary depending upon the distributor and local laws Please check with your local distributor for specific rights and details Any modifications to Pass Laboratories products that have no...

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