Exclusive Balanced XLR / Stereo Input selection board 

Highlights:

• Switches any one inputs out of dual stereo and dual Balanced XLR audio signals.
• Supports PCB mounted XLR input/output Sockets (included).  
• Seperate stereo and XLR audio output (For both back panel output connectors and inside chassis)
• The Audio Signals are routed unaltered in any way right from the Input terminals to the Amplifier Board ,no electronic parts are used in the Audio Signal Path.
• Fully independent Power ground and Signal Ground 
• Specially designed Board For PASS preamplifiers . Also supports front panel XLR inputs
• Signal Selector switch can be independently mounted on the front panel.
• High Quality Parts Used throughout. 

Part Details :

• 4 High quality HUIKE / GOODSKY Silver Contact Relays.
• High Quality Gold plated XLR Sockets from AEC 
• Rubycon Capacitors
• FR4 grade glass-reinforced epoxy 2.0mm thick board with Gold immersion with yellow soldermasking and 2OZ copper foil thickness. 
• High quality long life band switch.

Description:
This is a high quality Dual Balanced XLR and Dual Stereo Audio Input selction system that routes any one out of the 4 audio Inputs connected, to the Amplifier's input. The switching is done with the help of 6 high quality DPDT silver contact Relays (2 per channel for balanced and 1 per channel for Stereo), these relays route the connected audio signal to the Amplifier/Preamp board's input when these are turned on with the help of a band switch. No electronic component is used in the audio path, thus the audio signal remains 100% pure and untouched. The Board has been specially developed to work with chassis mounted XLR Sockets and any type of chassis mount RCA sockets including Bulk headsockets as found only on very high end branded audio devices.  The desired input is selected easily by simply rotating the band switch , which in turn and be mounted to the amplifier's/ preamp's front panel. The band switch PCB features 4 LED's that light up individually for each input selected.

Mounting:
This board is mounted Directly to the device's back panel by screwing the XLR sockets.The chassis back pabel has to be provided with a proper XLR cutout for 4 Input and 2 out put sockets. The XLR sockets are at a center to center distance spacing of 35 mm. The Rca Input and Out put sockets can be mounted to a position As close as possible to connection positions provided on the PCB.
 The input selection switch is of a rotary kind, that is mounted on the front panel of the amplifier / preamplifier very easily just by drilling a hole for the rotary switch .The rotary switch pcb is connected to the selection board by any 5p jumper cable.This Pcb also features 4 LED's , for which holes have to be made on the front panel.

Technical parameters:

Size: 290MM * 36MM

Switch board: 48MM * 32MM

XLR seat pitch: 35MM

Operating Voltage is 12v-0-12v or 0-12v

Whats Included:

Main Board : Kit / Assembled x 1

Seclection Switch x 1

LED's X 4

XLR Sockets X 6 ( 4 input + 2 output )