Great news, Uberwaltz, and congratulations! And a great quote about the squirrel. I'll have to remember that one for my own purposes :-)
Best regards,
-- Al
Best regards,
-- Al
Thoughts on wireless subwoofer.
Just looking for thoughts on whether this idea might actually work!
I have an Ayre ax7e integrated amp which does not have a sub out so best connection to a sub would be from speaker terminals taking care on connections as this is a fully balanced design.
This has been discussed previously in other threads and with Almarg.
However in my system hooking up a sub like this AND alternatively using the tape out RCA resulted in a very audible ground hum especially on phono.
This I could not get rid of so abandoned the idea.
Now here are my thoughts anew.
What if there was no actual physical connection between amp and sub? Surely then I should not suffer a ground loop hum?
Started looking at wireless subs and there are a few hifi orientated brands than run of the mill HT units.
One in particular I have been studying is the Martin Logan Dynamo 700w. This has a built in receiver and uses a transmitter that accepts RCA inputs and transmits on Bluetooth to the sub.
Sounds like it should work but.....
Anybody see any downside or has actually used a wireless sub?
Thank you.
I have an Ayre ax7e integrated amp which does not have a sub out so best connection to a sub would be from speaker terminals taking care on connections as this is a fully balanced design.
This has been discussed previously in other threads and with Almarg.
However in my system hooking up a sub like this AND alternatively using the tape out RCA resulted in a very audible ground hum especially on phono.
This I could not get rid of so abandoned the idea.
Now here are my thoughts anew.
What if there was no actual physical connection between amp and sub? Surely then I should not suffer a ground loop hum?
Started looking at wireless subs and there are a few hifi orientated brands than run of the mill HT units.
One in particular I have been studying is the Martin Logan Dynamo 700w. This has a built in receiver and uses a transmitter that accepts RCA inputs and transmits on Bluetooth to the sub.
Sounds like it should work but.....
Anybody see any downside or has actually used a wireless sub?
Thank you.
Showing 2 responses by almarg
Hi Uberwaltz, I’ve just noticed this thread. Thank you kindly for the mentions. I’m uncertain as to whether or not the wireless connection to the sub you’ve ordered will work ok or not. I see that the wireless transmitter is powered by an AC adapter, which I assume is a wallwart type of device. So depending on its design, and perhaps on whether it has a three-prong AC plug or a two-prong plug, there may or may not be a ground loop issue or some other ground-related issue arising between it and the Ayre. If there is, and as a result the transmitter sees a hum component on its RCA inputs, presumably it would faithfully transmit the hum to the wireless receiver. Should that occur, though, I’m thinking that a line-level audio isolation transformer connected between the Ayre and the wireless transmitter, or perhaps even between the Ayre and the RCA inputs on the sub itself, could very well be a solution. At a low price point ($60) this may be a solution: https://www.bhphotovideo.com/c/product/381596-REG/ART_DTI_DTI_Transformer_Isolator.html Its datasheet: http://www.artproaudio.com/framework/uploads/2018/06/ss_dti.pdf A Jensen transformer may also be a solution, albeit at a higher price point (~ $250): https://www.cs1.net/products/jensen_transformers.htm Hopefully neither of those things will prove to be necessary, though. Looking forward to your findings. Best regards, -- Al |