Speaker line level converter diy

You can use this circuit as such with an amplfier or you can connect it in parallel with existing speakers as well. Notes on using the circuit Remember to check that the circuit is connected in the right way every time you use it. If you want to reduce the risk of damaging anythign then put 10 ohm resistor between the circuit and speaker ground connector this will make sure that short circuit impedance is always at least 10 ohms, though it can introduce sometime hummign problems because of increase grounding impendace.

Remember that this circuit is designed only to be used with normal amplifiers which have common ground for speaker signals. It is not suitable to be used with bridge type output car stereo amplifiers.

If you are planning to use thie circuit with amplifier where there are no spakers connected to them some amplifiers might have poower sound quality if there is nothign connected to speaker output. If you experience this kind of problem, then you can put a 8 ohm resistor or whatever the apaker impedance that amplifier normally runs is and use it as a load. Remeber to select a resistor which cna handle the power that the amplifier output.

If you want to get around using a lower power resistor, then usually a resistor in ohm range gives satisfactory results instead of nominal 8 ohm. Join us on Facebook Here. What's new New posts Latest activity. Log in Register. Search titles only. Search Advanced search…. New posts. Search forums. Log in. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Speaker level to line-level converter Hide sidebar Show sidebar. Thread starter fightingfish Start date Oct 11, Here's my dilema, I have an Onkyo receiver with no pre-amp outs.

And I don't want to get a new receiver. Re: converting speaker level to line level So, it appears, after I got in this morning and started talking to the guys that took my speaker down, that they thought they could actually just plug a powered speaker into the output taps on the other 70 volt speakers in the area.

Getting something up to line level from mic level is relatively easy, especially since these guys want to be able to play an iPod or what not through the back stage speaker so they can listen to music while they are doing whatever it is that stage carpenters and electricians do when people aren't watching them too closely. So it appears that I am also hooking up a small mixer for whatever replaces this speaker that they took down. I'll have to post of picture of this speaker that they took down.

But it's gonna be a while. Mar 13, 0 0 Lillehammer, Norway www. Re: converting speaker level to line level Helge Dr. Christian Tepfer Sophomore. Jan 12, 0 16 48 Hamburg, Germany klanggestaltung. Re: converting speaker level to line level Yeah, you have to get a DI box with a true pad of around 40dB, essentially we want to pad the amp gain to get to the signal level at the amp's input.

For me it doesn't have to be an active DI box, a good passive's alright. Re: converting speaker level to line level Christian Tepfer said:. Yeah, you have to get a DI box with a true pad of around 40dB, essentially we want to pad the amp gain to get to the signal level at the amp's input.

According to the spec sheet for the Pro Co DB-1 original version , it will handle an 8 ohm speaker load up to watts. Could be useful in a few different applications. Have a link to said unit? Michael John Junior. Jun 25, 9 18 Sydney, Australia eclipseaudio.

Dave Barker Freshman. Jan 15, 45 0 6 Charlotte, NC www. Jeff Babcock Senior. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser.

It may not display this or other websites correctly. You should upgrade or use an alternative browser. Speaker to Line Level Converter. Thread starter RonM Start date pm. RonM Member. Anyone have a schematic they could share for an easy to build speaker-out to line-out converter?

Something like this: Jaycar Electronics or this: Amazon. The unit will be hooked to a PC soundcard, so I don't really need 35w capacity as for the commercial units. Seems like it would be an easy PCB project, even for Noob like me.

Thanks for any help. More options. Hi, It is very easy and you can build into the plugs that go into your soundcard. All you need to do is wire a series resistor and a parallel resistor into the plug.