LINE OUT 5e3 clone help please - diyAudio
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Old 29th November 2011, 10:39 PM   #1
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Default LINE OUT 5e3 clone help please

whats the best way to put a line lvel out put on my fender delux 5e3 clone want to get as close to its sound out put as posabile (Ie that over driven power stage sound) so i can di thru a pa.the amp sounds great its just not loud enough to play with a full band.
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Old 29th November 2011, 11:13 PM   #2
GloBug is offline GloBug  Canada
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The best way would be to mount your (a) speaker into an isolation box with a mic.

There's really no other way without compromising tone.
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Old 30th November 2011, 01:20 AM   #3
Enzo is offline Enzo  United States
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The speaker is a large component of the tone of the amp. A line out will not include the contribution of that speaker. A mic in front of it is simple and effective.

There are "speaker emulation" line outs on some amps. Those include some high end rolloff and maybe some additional massaging to make it sound speaker-ish. Like it or not, up to your ear.

A basic line out is simple enough, from the speaker hot lead, run a resistor to a control to act as a variable vvoltage divider.

There are things called direct boxes, which take a signal and split out a feed for a mixer. Peavey makes one specifically for use between guitar amp and speaker, check it out.
Peavey :: SDI Speaker Level Direct Interface

They make a fancier one for twice that price too. Other companies may make similar items.
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Old 30th November 2011, 01:31 AM   #4
kevinkr is offline kevinkr  United States
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Guitar amp/instrument related so I am moving this thread to the forum dedicated to this discussion.
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Old 30th November 2011, 04:35 AM   #5
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thanks enzo this Di box or one like it would be just the thing, but .....any one know how to build one? id sooner do that than buy it if i can this is DIY audio after all lol
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Old 30th November 2011, 11:38 AM   #6
GloBug is offline GloBug  Canada
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No, they sound like garbage.

Many folks have tried before you, miking the speaker is the only way that works, as it was stated, the speaker plays a huge part it creating the sound.
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Old 30th November 2011, 12:17 PM   #7
Enzo is offline Enzo  United States
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I don't have the insides of the SDI box, but look over this little amp with a DI emulator output. I have to think its DI circuit is similar to the SDI box insides. Food for thought anyway
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Old 30th November 2011, 05:32 PM   #8
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thanks again Enzo will give this ago, i assume the trany is just a 1to1 isolating transformer?

"miking the speaker is the only way that works, as it was stated, the speaker plays a huge part it creating the sound."

Ordinarilly I would agree, But in practise hav not been abile to make this work so well. hopin i can tweek the amp so it sounds just as good thru front of house.
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Old 1st December 2011, 12:16 AM   #9
Enzo is offline Enzo  United States
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Mic in front of amp is used by thousands and thousands. If it doesn;t work for you, try to find out why. For example, don't bring up that mic on the stage monitors, and make sure the mic used can handle the sound level of the speaker. And maybe right in front of the drum kit is a poor placement. And much has been said about mic placement, anything from how far away and from what angle. All experts not in agreement on this.
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Old 1st December 2011, 01:28 AM   #10
ChrisA is offline ChrisA  United States
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Quote:
Originally Posted by ArcticBreaze View Post
thanks again Enzo will give this ago, i assume the trany is just a 1to1 isolating transformer?

"miking the speaker is the only way that works, as it was stated, the speaker plays a huge part it creating the sound."

Of course a mic on the speaker will work. But not for indoor practice at night

You can build a "speaker emulator" First get a big power resistor sized for at least double your amp's power. Put this in place of the speaker. Now, a power resistor is a poor speaker emulator. You can add things to it to make it better. The firt step is to add a small inductor in series. Maybe about 1uH made of wire sized for the amp's power. Parts Express has these. They are used for crossover in HiFi speakers Ok now yu have a 1/2 way good speaker emulator

Next step: tap line level off the above. Place a 1M pot across the above emulator and take the signal from the wiper. You could simply use this but better get a small 1:1 audio transformer put the signal in one side and take both leads from the other size to an XLR jack for a balanced output signal.

Next refinement. Your 1M pot likely does not have much usable range so add a fixed resistor in series.

other refinements are to make the speaker emulator better. Adjust the inducter size But it will never be 100% perfect and you are better to just try and fix t up with tone controls on the amp and mixer
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