What's the best sound we can expect from internal amp?
Posted: Tue Jul 31, 2012 1:27 pm
Hi
I thought I posted something about speakers for the Joggler a good while back but can't find it now...
I have one of my Jogglers in the kitchen and would like to listen to speech radio (R4) on it mostly but the internal speakers are too tinny. What I would like to do, ideally, is connect an external speaker: either 1 or 2 way - mono would do.
The Joggler sound output according to the wiki and elsewhere appears to be provided by a STAC9202 chip (http://www.idt.com/products/audio-produ ... udio-codec). This has outputs for headphones and line out. Looking at the data sheet (http://www.idt.com/document/stac9202-da ... 92hd81-sta) p13 I think the headphone power output might be 50 mW peak per channel which doesn't sound enough for speakers.
So, basic questions:
1) The headphone output is presumably connected to the 3.5mm socket. Is the headphone output connected directly to the built-in speakers, or does the Joggler have some sort of other audio amp?
2) Has anyone found a good passive external speaker? Or am barking up the wrong tree here?!
Note: I could use powered 2-way PC speakers of course but I want to leave the Joggler on all the time and don't want (well, SWMBO won't want!) the extra wall wart, cables etc. I see Richer Sounds have some discontinued MINX10 speakers (8 ohm, 85 dB sensitity) for £30 (http://www.richersounds.com/product/boo ... -min10-blk) which I suspect would be wild overkill, but my Squeezebox Radio manages a fair sound from a 7.6cm woofer and it would be great to get something even half as good from the Joggler.
TIA!
Simon
I thought I posted something about speakers for the Joggler a good while back but can't find it now...
I have one of my Jogglers in the kitchen and would like to listen to speech radio (R4) on it mostly but the internal speakers are too tinny. What I would like to do, ideally, is connect an external speaker: either 1 or 2 way - mono would do.
The Joggler sound output according to the wiki and elsewhere appears to be provided by a STAC9202 chip (http://www.idt.com/products/audio-produ ... udio-codec). This has outputs for headphones and line out. Looking at the data sheet (http://www.idt.com/document/stac9202-da ... 92hd81-sta) p13 I think the headphone power output might be 50 mW peak per channel which doesn't sound enough for speakers.
So, basic questions:
1) The headphone output is presumably connected to the 3.5mm socket. Is the headphone output connected directly to the built-in speakers, or does the Joggler have some sort of other audio amp?
2) Has anyone found a good passive external speaker? Or am barking up the wrong tree here?!
Note: I could use powered 2-way PC speakers of course but I want to leave the Joggler on all the time and don't want (well, SWMBO won't want!) the extra wall wart, cables etc. I see Richer Sounds have some discontinued MINX10 speakers (8 ohm, 85 dB sensitity) for £30 (http://www.richersounds.com/product/boo ... -min10-blk) which I suspect would be wild overkill, but my Squeezebox Radio manages a fair sound from a 7.6cm woofer and it would be great to get something even half as good from the Joggler.
TIA!
Simon