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Multi-Way Conventional loudspeakers with crossovers

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Old 21st March 2014, 12:22 AM   #1
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Default Bypassing the coil in a box??

I should have thought of this before I finished the speakers LOL
With the new 2.5-Way speakers I have a single large inductor in series with the woofer but because we want to Bi-Amp these to use in the lounge room rather than the bedroom I need to by-pass the coil. I'd rather bypass than remove as it makes the speaker more versatile for future use.
I haven't really thought this through so has anyone else done this and could give me a few pointers?
Coil is ~10mH and 0.56R so I think I am going to need some big wire in the bypass and a simple single pole HD on/off switch or is there a better way?
Dual post terminal block is already in place of course
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Old 21st March 2014, 12:31 AM   #2
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too fancy, my LP inductors are sitting on top of the box, connected with electricians screw terminals....:-) ...just enjoying the music too much (& too lazy) to get to the next stage... (you know that as soon as you seal up the enclosures, you'll think of another use for those inductors...)
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Old 21st March 2014, 12:48 AM   #3
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Thanks Pete but that REALLY doesn't help much LOL
Luckily if I do think of another use they are glued to a section of ply and the ply is held in place with a single brass screw
WAF again, I have no objection to outboard XOs, the Boss os even objecting to the Trio L-07s sitting on the floor
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Old 21st March 2014, 02:47 AM   #4
frangus is offline frangus  Australia
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you could just add another set of terminals wired straight to the woofer for active use, bypassing the inductor.
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Old 21st March 2014, 02:50 AM   #5
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True, but I was checking prices and a switch is much cheaper than another set of terminals, I was simply a little unsure of the best way to wire up
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Old 21st March 2014, 02:56 AM   #6
rabbitz is offline rabbitz  Australia
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I'm not too sure what you are doing with the bi-amping. I bi-amp using one amp for the TM section and one amp for the 0.5W. You still need a LP filter for the 0.5 woofer unless of course it's going active. You can always by-pass the active xo to still use the inductor.

For a switch, I've used Altronics S3188 for this purpose and connect with inductor wire.
Altronics - S3188 SPST Round Rocker Switch

You could always add another terminal for this purpose and have done that on FR speakers to have BSC or no BSC.
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Old 21st March 2014, 02:58 AM   #7
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Hi Moondog, how often are you likely to want to change it? If it were me I'd just pull the driver out and desolder it and solder the speaker leads direct to the terminal, if I wanted to add it back in I'd reverse the procedure

If you do go the switch route, I'd use a DPDT switch and switch BOTH ends of the coil (have a shunt wire on the other side of the switch).

Tony.
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Old 21st March 2014, 02:59 AM   #8
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Actually it may wind up Tri-amp as I am halfway thru a pair of boxes for the CV Vega 124s.
I was hoping that taking the bottom octave from the .5 woofer and crossing the P-13 at 400 would clean up things a little when I pump up the volume to 11
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Old 21st March 2014, 03:00 AM   #9
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Tony I need a diagram I can't see that in my head
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Old 21st March 2014, 03:05 AM   #10
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Rabbitz subwoofer-/woofer-/mid-top
80 - 400P-
I have to say as a 2.5 the bass out of these p26 in a small sealed box is more than good makes me think I should have used a bigger midwoofer
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