Shop Tannoy System Help
Author
Discussion

cheekymeerkat

Original Poster:

155 posts

104 months

Monday 6th January 2020
quotequote all
Can any of you guys help me out here? I'm completely out of my depth.

I have a 5,000sqft warehouse shop and I'd like to install a tannoy and music system.
When I setup my shop, i emptied all of the fittings from a major retailer who was closing down. I took everything and this is what I got from under one of the tills, I didn't bother taking the speakers as they were all recessed in to the ceiling tiles and I don't have ceiling tiles in my shop. I also took the microphone but the button won't go down, it's stuck probably from fizzy pop or something. I didn't take any cables so it's just this and the microphone.

What I know about the shop was that it did play music, and I assume it was connected to a PC because it would make an e-mail noise when they got an email.

I would like to:
1) Aux in from a PC playing Spotify
2) Music to pause when someone talks in to the microphone
3) Aux in from a door chime so we know when someone has come in to the shop (Any pointers?)
4) Aux in from a IR line sensor or PIR so we know someone is waiting at the tills (Any pointers?)
I know the last 2 are hard ones to suss out but any help would be appreciated!

I also need to know where would I buy the speaker cable plug? I can't find that shape anywhere (The green connector block on the left)




Edited by cheekymeerkat on Monday 6th January 16:13

Mr Pointy

12,843 posts

182 months

Monday 6th January 2020
quotequote all
Post a couple of close up & in focus shots of the left & right hand side of the back of the unit so we can see what's going on there.

Mr Pointy

12,843 posts

182 months

Monday 6th January 2020
quotequote all
The green connectors look like Phoenix connectors:
https://cpc.farnell.com/c/cable-leads-connectors/c...

Measure how far apart the pins are: if it's 5.08mm then there's a chance this might be the one:
https://cpc.farnell.com/phoenix-contact/1757035/pl...

If it's 3.8mm it might be this one:
https://cpc.farnell.com/phoenix-contact/1803594/pl...

No guarantees though.

You can buy 100V line speakers from the same place:
https://cpc.farnell.com/search?st=100v%20line%20sp...

Just wire them in parallel, noting that the total speaker wattage shouldn't exceed the amp power (160W I think).

Edited by Mr Pointy on Monday 6th January 16:25

Miserablegit

4,393 posts

132 months

Monday 6th January 2020
quotequote all
I’m guessing it’s a 100v line system -
Used for lots of speakers in industrial set up.
Need special speakers/ transformers so you might find it cheaper to use a wireless distribution system

Miserablegit

4,393 posts

132 months

Monday 6th January 2020
quotequote all
A simple way would be a cheap 5 channel mixer into which the audio source is fed into 2 channels

The bing bong front door is fed to another Channel
The ping for customer waiting another channel
And the mic into the final Channel.
If the Muzak fader is at halfway then the other channels could be at a higher volume when used - if the line out from the mixer is fed to the line in on the wireless
System then that should work ok . Some wireless speakers have line in sockets that allow them to broadcast to other units.

Mr Pointy

12,843 posts

182 months

Monday 6th January 2020
quotequote all

megaphone

11,482 posts

274 months

Tuesday 7th January 2020
quotequote all
I do this stuff all the time. I have loads of the green phoenix connectors, happy to post one to you. PM me.

As others have said you'll need some 100v line speakers, these are just wired in parallel, or you can spur off, basically add as many speakers as you want as long as you don't exceed the amp wattage. The speakers usually have a setting for wattage, 2/5/10/20w. Just use simple 0.5mm mains flex, doesn't need to be anything special for 100v line.

Adastra stuff is ok and good value https://cpc.farnell.com/adastra/bc5v-b/indoor-spea...

PC will go into the AUX in, use a 3.5mm mini-jack to twin RCA.

Get a bit of IPA alcohol or switch cleaner on the mic and it will probably free up.

I

cheekymeerkat

Original Poster:

155 posts

104 months

Wednesday 8th January 2020
quotequote all
Thanks for your help guys, very much appreciated smile
I have an account with CPC as it happens. I'll have a stab at this next week.

Alucidnation

16,810 posts

193 months

Wednesday 8th January 2020
quotequote all
.5 flex may not be suitable.

It should be 1.0mm if there are long runs involved, and you should be able to pick up a roll of 2 core from a wholesaler.

Mr Pointy

12,843 posts

182 months

Wednesday 8th January 2020
quotequote all
Alucidnation said:
.5 flex may not be suitable.

It should be 1.0mm if there are long runs involved, and you should be able to pick up a roll of 2 core from a wholesaler.
No:
https://www.canford.co.uk/CANFORD-HLS-LFH-100-VOLT...


Alucidnation

16,810 posts

193 months

Wednesday 8th January 2020
quotequote all
Mr Pointy said:
Alucidnation said:
.5 flex may not be suitable.

It should be 1.0mm if there are long runs involved, and you should be able to pick up a roll of 2 core from a wholesaler.
No:
https://www.canford.co.uk/CANFORD-HLS-LFH-100-VOLT...
No what?

megaphone

11,482 posts

274 months

Thursday 9th January 2020
quotequote all
Alucidnation said:
.5 flex may not be suitable.

It should be 1.0mm if there are long runs involved, and you should be able to pick up a roll of 2 core from a wholesaler.
0.5mm, or .075, is perfectly adequate, I tend to use flat oval twin as it's discrete and easy to staple along cornices etc. Mains flex is easier to get hold of and is often a similar cost to 2 core, it also allows you to use the 3rd core as a second speaker circuit if needed. Really anything will do for 100v speakers.

Problem with going 1.00 mm is getting the cables into the speaker/amp/volume control terminals which are often small.


Edited by megaphone on Thursday 9th January 10:10

Alucidnation

16,810 posts

193 months

Thursday 9th January 2020
quotequote all
megaphone said:
Alucidnation said:
.5 flex may not be suitable.

It should be 1.0mm if there are long runs involved, and you should be able to pick up a roll of 2 core from a wholesaler.
0.5mm, or .075, is perfectly adequate, I tend to use flat oval twin as it's discrete and easy to staple along cornices etc. Mains flex is easier to get hold of and is often a similar cost to 2 core, it also allows you to use the 3rd core as a second speaker circuit if needed. Really anything will do for 100v speakers.

Problem with going 1.00 mm is getting the cables into the speaker/amp/volume control terminals which are often small.


Edited by megaphone on Thursday 9th January 10:10
Yes, good point about the terminal sizes, was just working off the 100 volt spec and possible distances.

smile