Balancing wallplate

[Yorkie]

I'm working on a church hall refurbishment project; there will be an X32 Rack hidden away in a storeroom, with a couple of analogue multicores run in the walls to flush stageboxes for balanced inputs and outputs. The only other input needed is for laptops/phones/DVD player etc, which would need balancing to run about 20m to the X32. I think the ideal solution would be a wallplate (ideally fitting a 1 or 2 gang flush electrical box) with a pair of phonos and/or a minijack socket, then stereo balancing transformers on the back of it. I assumed something like that would be an off the shelf product from CPC or Canford but can't find anything. Anyone know of a suitable product, or have recommendations for transformers if we have to assemble our own? Thanks in advance

Edited November 28, 2021 by Yorkie

[Sound Man]

These audio transformers would be suitable. I'd be tempted to fit a pair of standard jack sockets instead of phono's/mini jack.

David

[Bryson]

We tend to use RDL stuff for this purpose, but not sure how available it is in the UK:

https://www.rdlnet.com/product.php?page=712

The website says Canford sell it…

 

Edit: just realized: your electrical boxes and cover plates are a different shape/size, so this might not be much use.

Edit again: Here it is on the Canford website:  https://www.canford.co.uk/Products/2025371/57-2503_RDL-D-CIJ3D-AUDIO-INTERFACE-Input-stereo-1x-dual-RCA-phono-3.5mm-in-terminal-out-white

[sunray]

2 hours ago, Sound Man said:

These audio transformers would be suitable. I'd be tempted to fit a pair of standard jack sockets instead of phono's/mini jack.

David

People typically carry leads with mini jack or phono's if they expect to plug in, so I'd be more inclined to stick with them

 

I've done exactly what you're looking for, a number of times, commonly fitting a 3.5mm jack socket and a pair of phono's on the top half of a blank plate and using a 35mm 1G back box.

I tend to use the PCB from one of these in the bottom half: https://www.amazon.co.uk/AV-Link-Ground-Loop-Isolator/dp/B000NVWB9O/ref=sr_1_19?keywords=hum+eliminator&qid=1638146584&sr=8-19 as half of the work is already done and they are good value.

This is a modified unit showing the PCB. Some versions have a longer PCB which will need to be trimmed to length to fit in the back box

[sunray]

1 hour ago, Bryson said:

We tend to use RDL stuff for this purpose, but not sure how available it is in the UK:

https://www.rdlnet.com/product.php?page=712

The website says Canford sell it…

 

Edit: just realized: your electrical boxes and cover plates are a different shape/size, so this might not be much use.

I've used these a few times when specified by American companies for their premisis in London and agree they are lovely units. US back boxes are readily available in UK now. However I've also seen them 'installed' across UK back boxes with screws into the wall above and below the box.

Edited November 29, 2021 by sunray

[Yorkie]

15 hours ago, Bryson said:

We tend to use RDL stuff for this purpose, but not sure how available it is in the UK:

https://www.rdlnet.com/product.php?page=712

The website says Canford sell it…

Edit: just realized: your electrical boxes and cover plates are a different shape/size, so this might not be much use.

Edit again: Here it is on the Canford website:  https://www.canford.co.uk/Products/2025371/57-2503_RDL-D-CIJ3D-AUDIO-INTERFACE-Input-stereo-1x-dual-RCA-phono-3.5mm-in-terminal-out-white

Thanks, that is exactly the product. If it was reasonably priced and available with a UK bezel I'd go for it. Shame the new ones on eBay for £13 delivered are only mono output