background image

pg. 6

 

 

through the mPRE at unity gain. For example, if you feed 2.0V in you will get 2.0V 
out. This allows you to use the volume control of your processor to adjust the level 
of the gear connected to the mPRE.

 This is a configuration switch and must be set 

with the mPRE powered completely off!

 

Variable/Fixed Out 

 

There are two RCA pre-outs on the back of the mPRE. One of these outputs, 

indicated by #11 on the back panel diagram (pg. 8), can be easily configured as a 
variable or fixed unity gain output. In variable mode, it is a standard pre-out that is 
suitable to be connected to an amplifier or powered subwoofer. When the 2 
position switch indicated by number #13 on the back panel diagram is in the “in 
position”, it will be a unity gain output. The fixed output configuration is perfect for 
feeding a signal to a second system or when recording.

  This is a configuration 

switch and must be set with the mPRE powered completely off!

 

DC Trigger 

On the left side of the rear panel you will find a 12V DC trigger input and 

output. If the HT bypass is not active, the trigger-in will turn the unit on from a 
standby state (illuminated green around the power button) to that last used input 
before the unit was turned off. When HT bypass is active, the trigger in will power 
the mPRE on directly to the Aux 2 input (HT bypass). Trigger out will be active 
whenever the mPRE is powered on. (Current Rating 20mA) 

USB Configuration (MAC) 

Please follow these steps when connecting your new unit to a Macintosh 

computer. The USB interface is certified USB 2.0 High Speed and Audio Class 2.0 
compliant meaning that no drivers are required for Mac systems 10.6.4 and later. 

 

1.

 

Connect a USB cable from the mPRE to the computer with the mPRE and 
computer powered on. 

2.

 

The USB device will automatically install but there will not be any indication 
aside from the device showing up in the Audio MIDI.   

3.

 

It is now necessary to select the mPRE as the output device for your 
computer. Please locate the Audio Midi setup by following this directory: 
Click On Finder----> Applications---> Utilities----> Audio Midi setup. 

4.

 

Once you have reached the Midi setup you will need to select the “Wyred 4 
Sound 24/192 USB Audio Out” as the default output device and apply the 
setting. To apply the setting click on “Wyred 4 Sound 24/192 USB Audio Out” 
and then click on the “gear” icon located at the bottom of the window. When 

Summary of Contents for mini-PRE

Page 1: ...mPRE mini PRE Owner s Manual IMPORTANT Check position of AC mains switch prior to connecting the unit to a power source Wyred 4 Sound 2013 All rights reserved v1 2...

Page 2: ...rview 2 3 AC Mains Voltage Switch 4 Powering your Pre amp 4 Break In Period 4 Front Panel Operation 5 Aux 2 Home Theater Bypass 5 6 Variable Fixed Out 6 DC Trigger 6 USB Configuration MAC 6 7 USB Conf...

Page 3: ...anual contains detailed information regarding the design operation and features of the Wyred 4 Sound mPRE Damage due to misuse or failure to properly follow instructions will not be covered under warr...

Page 4: ...ion distortion or any other undesirable attribute is a delicate matter We began by designing a fully balanced circuit from input to output which actively rejects noise and lowers distortion The notewo...

Page 5: ...og sources are highly refined with the mPRE On the occasion that you are craving a headphone session the mPRE has a headphone jack on the front panel so you can plug right into the high performance he...

Page 6: ...it before you can press the power button Pressing the power button will turn the unit on and the light around the power button will switch to blue It is only necessary to turn the Pre amp off with the...

Page 7: ...ring light 2 First press and hold the AUX 2 input button in and then power the unit on from standby by pressing the power button 3 Once the unit is on you can release the AUX 2 button Press the AUX 2...

Page 8: ...unit on from a standby state illuminated green around the power button to that last used input before the unit was turned off When HT bypass is active the trigger in will power the mPRE on directly t...

Page 9: ...oads html 2 Locate the file titled W4S 24 192 Driver Package and click download 3 Next click Save and be sure to note or specify the folder on your computer where the file will save to 4 When the down...

Page 10: ...yer etc 5 24 bit 192kHz Asynchronous USB USB input for streaming music from a Mac PC computer or Music Server 6 Coaxial Input for a digital source such as a TV DVD player Sonos Airport express CD play...

Page 11: ...E The point where sound will become audible varies with each system although it is typically around of the way turned up clockwise from the lowest setting all of the way counter clockwise 6 Carefully...

Page 12: ...hardware product against defects in materials and workmanship under normal use for a period of FIVE 5 YEARS from the date of retail purchase by the original end user purchaser Warranty Period If the...

Page 13: ...LIMITATION WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND WARRANTIES AGAINST HIDDEN OR LATENT DEFECTS IF WYRED 4 SOUND CANNOT LAWFULLY DISCLAIM STATUTORY OR IMPLIED WARRANTIES THE...

Page 14: ...that are tendered or presented for service during the Warranty Period as permitted by law Wyred 4 Sound is not responsible for freight charges to our facility for warranty repairs We will cover return...

Page 15: ...ty for loss or damage to the product during shipment to the W4S facility and ensure all freight shipping charges are prepaid The product may also be hand delivered to the California facility if arrang...

Page 16: ...0 020 db 0 002 db 0 002 db Channel Tracking 0 020 db 0 020 db 0 020 db Crosstalk 95 db 118 db 118 db Input Impedance 100k ohms 100k ohms 75 ohms Coax Output Impedance 100 ohms 100 ohms 100 ohms S N 10...

Reviews: