RE: Re: In-ceiling amplifiers

[<ha@xxxxxxx>]

Shane,

So basically it's a 4 source 3 zone controller/amp. A bit like the 4x4 ones
>from

I still am wondering about an 'in-ceiling' type thing that could help out
all these people who are putting Slimp3s around their houses (in ceiling
meaning: placed next to a ceiling speaker so that for maintenance you would
remove the speaker, and feel into the void for the amp). The main point to
then solve would  be how to neatly get some power and signal from 'inside'
the room where the Slimp3 player is, to the ceiling void. My only half
sensible idea so far is to use CAT5 cable so either RJ45 connection plates
and an external 'box' for signal and power input at the back of the slimp3,
....or.... a single gang electrical plate thing with DC-in socket in from
a=
n
external PSU,  and a couple of phonos for audio input.

Any comments anyone? Level control on it? IR or something else? or just a
straight dumb stereo 20w amp.

Sorry for all the 'market research'.

Regards,

Richard


-----Original Message-----
From: Shane Harrison [mailto:shane.harrison@xxxxxxx]
Sent: 09 July 2003 12:17
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Re: In-ceiling amplifiers


Yep I was actually testing it tonight.  All channels are working,
sources appear to be switching and my MP3's are playing nicely through
it - I'm using mp3elf's with jreceiver.

I am currently using it in a rack situation as Marcus mentioned but it
should convert to a standalone unit OK as well. Source selection (1 of 4
on each zone) and volume is electronically adjustable.  I have made
provision for serial RS232/RS485 control but not actually tested that as
I use a Linet network to control it - http://www.linet-network.com.

At Frank's nagging :-) I added IR to it at the last minute.

Need to get a signal analyser from work and do a few noise checks but
essentially I was going for a middle of the road amplifier for whole
house audio rather than "Hi-Fi" quality.

Not sure where to take it after I give my second prototype to Frank -
depends on interest shown by others I guess and whether it is worth
making some more PCB's etc.  Major issue would be power supply for most
people I expect since 3 zones probably needs around 6 x 1.5 amps @ 40V.

Cheers
Shane
> -----Original Message-----
> From: Frank Mc Alinden [mailto:fmcalind@xxxxxxx]
> Sent: Wednesday, 9 July 2003 7:47 p.m.
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Re: In-ceiling amplifiers
>
>
> Hi Marcus
>
>             Shane Harrison is currently developing a 3 zone
> stereo amp which i think will have a serial interface......I
> think its around 20 watts.....and i hope to do an ir
> interface for it when Shanes ready............
>
> Frank
>   ----- Original Message -----
>   From: Marcus Warrington
>   To: ukha_d@xxxxxxx
>   Sent: Wednesday, July 09, 2003 2:54 AM
>   Subject: [ukha_d] Re: In-ceiling amplifiers
>
>
>   Well for my own house I'd like a cheap small stereo amp
> that provides reasonable
>   sound quality, and whose volumne can be adjusted
> electronically. i.e. I want
>   a web server to be able to adjust the volume of an
> individual amp. Ideally I'd then
>   have a rack of 15 of these in node0 (one for each
> room/zone) and a webserver acting
>   as a central controller.
>
>   Ok somewhere in there I'd need some sources and a switcher as well..
>
>   Marcus
>
>   >  Date: Fri, 4 Jul 2003 11:42:10 +0100
>   >   From: <ha@xxxxxxx>
>   >
>   >Alright then, what exactly do you want in an ideal world.
> I guess if at
>   >least 2 people on this list need something, then maybe a
> whole bunch of
>   >other people do to, and it maybe worth me making it into a
product,
>   >especially as I have a 12v powered amp prototype 'standing by'.
>
>         Yahoo! Groups Sponsor
>               ADVERTISEMENT
>
>
>
>
>   ** UKHA2004 BE THERE! ** - start planning now.
>
http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx
Subscribe:  ukha_d-subscribe@xxxxxxx
Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
List owner:  ukha_d-owner@xxxxxxx

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.


[Non-text portions of this message have been removed]



** UKHA2004 BE THERE! ** - start planning now.

http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx
Subscribe:  ukha_d-subscribe@xxxxxxx
Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
List owner:  ukha_d-owner@xxxxxxx

Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/