Hello my endearing copper obsessed savages,
I seek to find a final answer in my quest to the ultimate budget garden speaker setup.
I was first planning for a project box with mono amp boards to power 6 seperate speakers.
That would leave my volume controls in the house though instead of where I need them (at the speakers).
The same being the case if I shell out the cash for a second hand PA amplifier.
So I switch my focus and plans.
I want to hook up these small and insanely cheap amplifiers (in mono, using only 1 of the stereo outputs with a mono source).
http://nl.aliexpress.com/item/Free-...01602_3_10017_10005_10006_10034_10021_507_100
The only thing I need to bring from the house is a source.
I'm thinking digital S/PDIF coax given the apparent losses with regular analog RCA, TOSLINK (optical), the pragmatic impossibility of sending 6 small DACs audio through USB and the same "handshake" and range impossiblity with bluetooth.
It is actually surprisingly remarkable we don't have a decent, widely used and accepted wifi or single end, direction, near field RF solution, standard for sending wireless audio to multiple speakers.
All we really have is DIY, expensive limited proprietary "brand" concepts like SONOS and logitech squeezebox and crappy short-range, finicky bluetooth connections which also are pretty proprietary.
We really need to see a standardised format like HDMI for wireless audio over RF.
That said... I really would like to avoid having to buy this hilariously priced 6 way S/PDIF coax splitter/amplifier: https://www.studiospares.com/Studio...Dda6S-6-Way-SPDIF-Distribution-Amp_368070.htm (well basically I wouldn't)
I'm thinking after reading many threads about the near infinite range and splittability of coax cable. Do I even need such an amplified splitter?
Can't I just use a CATV splitter, COAX cable with RCA plugs? http://nl.aliexpress.com/item/6-Way.../32582174106.html?spm=2114.010208.8.16.TSkzru
To ultimately go to 6 different cheapo DACs mounted with the amp and a solar powered battery (all providing the needed 5v of both amp and dac)?
http://nl.aliexpress.com/item/PCM27..._6&btsid=e418f2e5-1090-4a8d-8ed8-e049f7601e1d
http://nl.aliexpress.com/item/zk30-..._6&btsid=65096766-bf94-47e6-bc59-2557bfbe9ec4
The main questions however... Will this 6 way passive splitting of the digital audio render the signal too weak or jittered, noisy? Do I need to wire resistors between the DAC and the coax cale for it to see 75 Ohm impedence? Do I need to "amplify" the signal as the existence of such a product would indicate? Given the (10-20m) lengths I want to run the coax cables... Is this possible? Is making my own 6 way digital S/PDIF amplifier realisttically feasible and where/how could I do this? As every thread I read on this seemed to be able to run the digital S/PDIF, coax through nearly every thing imaginable, y splitters, RCA analog cables, CATV splitters... One guy even claiming he ran a signal through clothes hangers to prove a point at one instance...
Long story short. Does this have a chance as the threads on it gave me the illusion it does. Does anybody have a way in which it COULD work... Is making my own amplifier feasible, worth it? Or does anybody have an alternative solution to multi-zone, affordable audio?
I seek to find a final answer in my quest to the ultimate budget garden speaker setup.
I was first planning for a project box with mono amp boards to power 6 seperate speakers.
That would leave my volume controls in the house though instead of where I need them (at the speakers).
The same being the case if I shell out the cash for a second hand PA amplifier.
So I switch my focus and plans.
I want to hook up these small and insanely cheap amplifiers (in mono, using only 1 of the stereo outputs with a mono source).
http://nl.aliexpress.com/item/Free-...01602_3_10017_10005_10006_10034_10021_507_100
The only thing I need to bring from the house is a source.
I'm thinking digital S/PDIF coax given the apparent losses with regular analog RCA, TOSLINK (optical), the pragmatic impossibility of sending 6 small DACs audio through USB and the same "handshake" and range impossiblity with bluetooth.
It is actually surprisingly remarkable we don't have a decent, widely used and accepted wifi or single end, direction, near field RF solution, standard for sending wireless audio to multiple speakers.
All we really have is DIY, expensive limited proprietary "brand" concepts like SONOS and logitech squeezebox and crappy short-range, finicky bluetooth connections which also are pretty proprietary.
We really need to see a standardised format like HDMI for wireless audio over RF.
That said... I really would like to avoid having to buy this hilariously priced 6 way S/PDIF coax splitter/amplifier: https://www.studiospares.com/Studio...Dda6S-6-Way-SPDIF-Distribution-Amp_368070.htm (well basically I wouldn't)
I'm thinking after reading many threads about the near infinite range and splittability of coax cable. Do I even need such an amplified splitter?
Can't I just use a CATV splitter, COAX cable with RCA plugs? http://nl.aliexpress.com/item/6-Way.../32582174106.html?spm=2114.010208.8.16.TSkzru
To ultimately go to 6 different cheapo DACs mounted with the amp and a solar powered battery (all providing the needed 5v of both amp and dac)?
http://nl.aliexpress.com/item/PCM27..._6&btsid=e418f2e5-1090-4a8d-8ed8-e049f7601e1d
http://nl.aliexpress.com/item/zk30-..._6&btsid=65096766-bf94-47e6-bc59-2557bfbe9ec4
The main questions however... Will this 6 way passive splitting of the digital audio render the signal too weak or jittered, noisy? Do I need to wire resistors between the DAC and the coax cale for it to see 75 Ohm impedence? Do I need to "amplify" the signal as the existence of such a product would indicate? Given the (10-20m) lengths I want to run the coax cables... Is this possible? Is making my own 6 way digital S/PDIF amplifier realisttically feasible and where/how could I do this? As every thread I read on this seemed to be able to run the digital S/PDIF, coax through nearly every thing imaginable, y splitters, RCA analog cables, CATV splitters... One guy even claiming he ran a signal through clothes hangers to prove a point at one instance...
Long story short. Does this have a chance as the threads on it gave me the illusion it does. Does anybody have a way in which it COULD work... Is making my own amplifier feasible, worth it? Or does anybody have an alternative solution to multi-zone, affordable audio?
Attachments
-
59.8 KB Views: 6
-
243.2 KB Views: 7