The tape connection on the Beomaster 2400,is both an input and output,being designed for a tape recorder of course.

You could connect this port to your Bogen multiroom amplifier,and listen to your downloads and vinyl around the house.

Assuming that the Bogen and B&O are close to each other,you could connect a Din to 4xRCA cable between the tape socket of the B&O and one of the line inputs,and the Aux/line output of the Bogen.

Connecting to the headphone socket of the Beomaster is a bit crude,and it will indeed cut out the B&O speakers,unless they are connected to SP2.

Nick

Hey 

Sadly the

The cable you have is not correct for your application. It has -

5-pin DIN plug (wired 1 + 4 + 5 + 3) to 4 x RCA plugs. 
RCA Phono connections.
5 Pin DIN
AV Audio Cable 
Going clockwise on the image the pin connections are: 
PIN 1 = BLACK 
PIN 2 = RED 
PIN 3 = GROUND 
PIN 4 = YELLOW 
PIN 5 = WHITE

That won't work. Get a proper cable from Steve and SoundsHeavenly.com

I believe the Beocord DIN plug (which is what the Beomaster 2400 supports) has this pin out

PIN 1 = Tape In Left
PIN 2 = Ground
PIN 3 = Tape Out Left
PIN 4 = Tape In Right
PIN 5 = Tape Out Right

Awesome!  TY so much sonavor!  I just emailed Steve.

Looking at the cable description again I realized they state their pin assignment is going clockwise PIN 1 through PIN 5. If that is really the case then their PIN 3 = DIN standard PIN 2 so the pin assignments would be correct. I wonder if that is really the case.

Here is the Beomaster 2400 Tape DIN jack

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If your cable wiring matches the diagram then it should work.