Powersoft K10 on labs
Printed From: Speakerplans.com
Category: General
Forum Name: Amp Forum
Forum Description: The 'Stopping Jake Fielder moaning constantly' forum description...
URL: https://forum.speakerplans.com/forum_posts.asp?TID=35543
Printed Date: 26 March 2026 at 11:31pm
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: Powersoft K10 on labs
Posted By: jonminns
Subject: Powersoft K10 on labs
Date Posted: 04 February 2010 at 6:56pm
|
Evening all Considering that the K10 outputs 5kw/channel @ 2r, would it therefore work to connect lab drivers in series internally and run 4 labs (8 drivers) per channel of a K10. This still works out to be 1250w per box which is enough? Cheers Jon ------------- 4 ohms is for wimps |
Replies:
Posted By: cilla.scope
Date Posted: 04 February 2010 at 7:13pm
|
yep, will be fine, called "series-parallel" . .. i am assuming the drivers are normally 4R wired in parallel in the labs to give 2R? and you were considerign wiring them up in series internally to give 8R? (4 x 8R in parallel would give 2R overall) which woud give you your 1250W a box you dont need to do that .... just but two 2R boxes in series giving 4R, and then paralell up the two 4R lots of two boxes ... giving 2R again, job done. depends whats more effort, butchering up some leads or opeing up all the cabs .. either way, elecrically the result is the same ------------- My girlfriend thinks I'm a stalker. Well, she's not exactly my girlfriend yet ... |
Posted By: toastyghost
Date Posted: 04 February 2010 at 7:26pm
| Both the LAB12s in a LAB horn are wired in parallel to give an impedance of around 4 ohms per cab I believe. |
Posted By: cilla.scope
Date Posted: 04 February 2010 at 7:45pm
|
in that case .... they will be 8R drivers, so wired as 2 in series in each box will give 16R, 4 boxes in a parallel will give 4R again (if doing thebox re-wire thing) alternatively ... putting a 4R box in series with a 4R box, gives 8R ... and then stacking thse two in parallel gives you yor 4R again. a K10 should deliver about 2500W into 4R, which split across 4 boxes wont be enough :( ------------- My girlfriend thinks I'm a stalker. Well, she's not exactly my girlfriend yet ... |
Posted By: tallmike
Date Posted: 04 February 2010 at 10:46pm
|
cilla.scope wrote:Posted By: jonminns
Date Posted: 04 February 2010 at 10:47pm
|
They're actually 6 ohm drivers but the pressure in the box brings them up to around 8 ohm each Ah ferk... for some reason i was thinking i could get a box to be 8 ohm Maybe there's a 4 ohm version of the lab12 - that'd be useful. But isn't there some issue with using 4 ohm drivers? ------------- 4 ohms is for wimps |
Posted By: tallmike
Date Posted: 04 February 2010 at 10:50pm
|
You maybe need to look at two amps that will bridge into 4R.
Couple of new FFAs Jon?
Or maybe some K3s or K6s?
|
Posted By: Spesh
Date Posted: 04 February 2010 at 10:58pm
Unfortunately I don't think there is a 4ohm version. Like you say, the load they actually present when inside the labhorn is much closer to 8 ohms per driver. They're really quite an odd box in terms of power/impedance.
|
Posted By: jonminns
Date Posted: 04 February 2010 at 11:06pm
|
How are you getting on with yours spesh, what do you power them with? ------------- 4 ohms is for wimps |
Posted By: tallmike
Date Posted: 04 February 2010 at 11:07pm
| K20 would solve that problem Jon :) |
Posted By: Spesh
Date Posted: 04 February 2010 at 11:33pm
|
I'm running 4 labs per 4050HD.
To be perfectly honest, I was a bit worried that the 4050's wouldn't have enough power for 2 ohm stereo on Lab's, but to my surprise they actually deal with it quite well. They sound much better than the PL4's running the same setup and there's actually a surprising amount of weight behind the sound.
That said, I still think I'd be better off with a pair of 5000VZ/Inf8's. So needless to say that will be an upgrade coming quite shortly. I fancy another pair of Floods aswell, so I think the bank balance is gonna take a bit of a rinsing.
|
Posted By: Ben_Lawrance
Date Posted: 04 February 2010 at 11:35pm
|
If you want to know about Labs and Powersoft, speak to Jeff Nine Bar.
|