DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 26 Jan 2021, 01:00

All times are UTC - 6 hours [ DST ]

Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: 15 Mar 2019, 19:33 

Joined: 15 Mar 2019, 19:31
Posts: 1
Hey Guys and Girls,
I need a little help! I have A Focusrite Scarlett 2i4 USB interface that goes to a big volume knob (Nano patch) then out to my KRK rokit 5’s which I use for mixing and mastering.
This works fine for this but I also use it for gaming and listening to music and would love to add a Sub (I have a Sony sub that has cross over etc).
So what I’m looking for (I have no idea what it is called so have not been able to search for it) is DIY ( or commercial product if it has to be) project that will allow me to connect (RCA) and turn a sub on and off
• Looking for good audio quality
• Happy for it to replace the Nanopatch
Any ideas?

PostPosted: 19 Mar 2019, 00:44 

Joined: 23 Feb 2017, 02:02
Posts: 677
you cannot use rca to turn something on and off, it is only for audio signal transmission

PostPosted: 20 Mar 2019, 07:20 

Joined: 09 Oct 2012, 19:43
Posts: 363
Location: Vancouver Canada
If you are talking about turning the power on and off automatically when an audio signal is present then yes there are DIY versions
of these switches around. Some SUB's have this built in. Anyways, look for automatic stereo switches etc. The switch is a cct which
is in parallel to the signal watching it and if there is a signal present it energies a relay which in turn powers on the sub amp or whatever
is plugged in.
These methods of hands free control of power have gone by the way side as modern equipment such as sub bass amps etc now employ class D operation and use so little power when no music is present that the extra cct to do what you ask is not needed. Also I think
it is bad practice to have audio and 120vAC in the same box as a consumer item so they died out.
Have a look at this page

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 6 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 11 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© - Terms of Service - Privacy Policy