Rogers DW2 Subwoofer connections

Hi ,
I’ve recently acquired the above vintage sub which is a match for the JR149 speakers, the previous owner nor I know how to connect it to the amp or speakers ( input or output)
Is there anyway to test which goes where other than trial and error and could i damage something if say I connected the input to output ?
Can’t find a schematic anywhere.

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Each of the two connection blocks (one for each of the L and R channels) has four terminals.

I read that the wires connected to those terminals are colour coded, so unscrew the terminals to expose the wires.

The colour coding on each channel is said to be: Orange, Green with Yellow trace, Red with Blue trace, Red

Each amp channel is connected thus:

Red = + input
Red with Blue trace = - input

Each JR 149 is connected thus:

Orange = + output
Green with Yellow trace = - output

I read it here: https://theartofsound.net/forum/showthread.php?10789-Rogers-DW2-Subwoofer-Connectivity-Advice-Please
 
While attempting to identify which is the input pair of wires I would want to avoid any possible risk of damage to an expensive amplifier.

I would use one of my non-essential amplifiers to determine which terminals energise the subwoofer (there would be no need to connect the satellte speakers at that stage).
 
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While attempting to identify which is the input pair of wires I would want to avoid any possible risk of damage to an expensive amplifier.

I would use one of my non-essential amplifiers to determine which terminals energise the subwoofer (there would be no need to connect the satellte speakers at that stage).
Before you connect it to an amplifier, try test it with a DMM.
I think the input go to a 2 way crossover, low pass to internal woofers and high pass to JR149 speaker.
Since most high pass filter usually has capacitor in series, and low pass filter does not. My suggestion is test with a ohm meter across white/blue taps and also the orange/blue taps.
The taps for amplifier input should has about 3Ω to 10Ω resistance and the taps go low in a second than go very high resistance is for output to satellte speaker.
 
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Looking at the construction of the inductors, I would say that the the orange and blue wires in the lower section carry the input to the woofer, while the white and blue wires in the upper section carry the output to the satellite speakers.
 
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The contribution of the subwoofer should be subtle. It should blend in and not be identifiable as a separate entity.

Alcap capacitors can maintain their capacitance and ESR values for many years.

If you do replace them, use modern bipolar electrolytic capacitors in order to emulate the sound balance intended by the manufacturer.

Out of interest, can you read and tell us their uF and working voltage values?