Hi,

I have now decided to replace my front splits and upgrade to most likely a set of dynaudio system 340 3 ways or set of 240mkII's. Just wondering wether anyone has heard a set of these before (either) and what their impressions were? I have an audison VR series amp and it is only 46WRMSx4 and i don't know wether it would be up to running a set of these speakers as everywhere i read about them people say to give them 150wrms per side for best results. I am after best sq rather than volume so would i get decent sound out of them with this minimal amount of power?

Thanks

Shinny Car is running 3 ways (although with Supremo tweeter) and they sounded great, (my opinion and evidenced by the fact he does well in all the comps). Not sure what model they are.

He might be a good one to ask about power requirements but i would suggest from my experience with a few 3 way setpups, the midbass drivers tend to soak up a bit of juice and i would be working towards 150rms per side if running passive.

46wrms of quality power is a fair bit...

Considering your amp is a 4 channel have you considered running passive and bridge the 4 channe into 2?

That way u'll have atleast 2x150wrms on tap for the splits.

Are u running a sub off that amp too? or do u want to run active?

For SQ i would run the splits active. 46wrms is enough for the woofers, to get fairly loud.

46rms will be fine for tweeters or mids, but i think you'll need more to run your midbasses nice and hard.

I'm not sure how your planning to hook it all up. AS MAZ said are you running a sub amp as well. If so bridge the amp and run 150rms per side, that will do nicely. Otherwise you will need another amp i wuold look for 2 x 75rms and run tweeters 46 x 2, mids 46 x 2 and midbass 75 x 2 for a fully active front stage.

Thanks for the help so far.

As far as running it goes if i went three ways thought with them be able to run 46 into woofer and 46 between midrange and tweet? Or cost permitting get custom passive crossover made up and put 150 into them per side?

On a side note what sort of $$$ would i be looking at for custom passive x-overs.

The subs are running off 1000W orion digital.

I was told by the previous owner of the amp that he was running an alpine dd drive 12" off one channel in mono giving about 150rms and got 137db and tore the voice coil up pretty bad on another day with this amp so it might be a bit underrated??

Cheers again for the help.

Sorry but haven't had much to do with 3 ways before or custom made x-overs so i am a bit new to all this and unsure about what way to go and how it all works./

if you run a 3 way set off 4 channels, it can be done, but you'll need an active crossover to split the signals between the channels, or a good deck that has good crossovers in it (alpine 9815 come to mind)..

to do this, you can..
use channels 1 & 2 to run the front midbass
use channels 3 & 4 to run the front midrange and tweeter using the supplied crossover..
you'll have to low-pass the first 2 channels below 200Hz, and high-pass the other 2 channels at that same frequency.. or something about there..

The deck i have is an eclipse 8051. don't think it has nearly the amount of feat. of alpines though.

If you go with the 3ways such as dyn's they should come with there own crossover so then u can just bridge the amp into 2 channels and run the fronts off it.

If you want to run active, i'd suggest buying a bigger 4 channel amp, like a 4x80wrms or similar. This way you can use your current amp to power each tweeter and midrange. Then use each 80wrms channel for the midbass. This leaves two 80wrms channels left which u could bridge for the sub.

Only problem with this though is ull need a external 3way active crossover, these dont come cheap and ull be looking at ateast $500. So all of a sudden the price has blown out to over 2 grand...

The dyn xovers are all you will need and if you either bridge amp to get power up or just run them off 2 ch it will be fine. Sure more power is ideal but all it will mean if you dont use tonnes is your system wont be very loud.

If you have a 4 ch then bridge it and you will have ample power. I use the 360 system dyns and love them so Id say if you can fit the 340s go for them over the 240's

IMO going active on dyns is just wrong. the crossover are all phase correct shallow slope and so have inherent advantages that an active system will negate.

peace
Cyberpunky

i started off with the system240's. now i have a mix'n match 3-way (part dyn, part morel).

i too would suggest sticking with the supplied passive xover and delivering as much power as you can. that is, bridge the amp to 2 channels. this should provide the best results.

running it 'active' or semi-active warrants more power IMO. i did run my passive setup at one stage with 75WRMS per channel on tap, and this was enough to go very loud. with under 50, not so sure; you'd want to tune it carefully to avoid clipping the amp (although the splits may tolerate a powerful clipped signal from that amp without being overpowered). my current setup is active and deliver 110WRMS on tap to the woofer and ~40WRMS to the mid (the dyn mid happens to be 8ohm); and ~60WRMS to the morel tweeter (6ohm). IMO, i could still do with more power! :?

im with Cyberpunky on that one

Hi,
Sorry to go a bit off topic, but has anyone ever tried to modify the standard dyn crossovers to make them bi-ampable? If you have, how did it go and was it really straight forward to do? Cheers

Why bother?

It would be just as easy to make up a whole new passive x-over from scratch.

Or better still run everything fully active.

There was an Audiocontrol DXS in the FS section for $350.

the dyn' Xover is bloody good, and is specifically designed with these speakers in mind, slope, points etc. Something that you may not be able to acheive or better by going active. So why spend the $$??

use the standard Xover, and bridge your amp. The mid may not 'thump' as hard as you would dream of, but the money you save COULD go to an upgrade later down the track.

Have heard both the 2 and 3 way setups. Very Very nice sound they can soak up a bit of power especialy the 3ways. Prefere the three ways if you got the room and $$$. The pasive crossover is of very high quality and helpswith phase correction.It all comes down to personal choice.

ok thanks for the responses but now i am undecided between morel 3 ways and the dyn's. I have been told the morel elates have a smoother sound and better midbass than the dynaudio 340's. Any comments on this.... if i have to i might buy a vrx2.150 or something for the midbass woofers. Am going to go down to brissy to have a listen to the morel elate 6's in a car running off an audison LRx

Dyn claim that bi-wiring offers no gain in sound quality. Having said that, I would imagine that any local speaker repairer/designer (Total Recoil?) could do the work on the cross over that'll be needed.

Personally, I believe bi-wiring and even bi-amping can be worth while. From experience, some speakers tend to deliver more than others though when run this way.

If you go for the Morel Elate speaker sets, their cross overs are already set up for this but with jumpers in place should you want to run them in the standard configuration.

Dynaudio have never extolled the benefits of biwiring, to the extent that the flagship home speaker, the Evidence Master, $125000 retail, has a single pair of terminals on the back. There really is no reason why biwiring makes a difference in sound quality. Bi amping is a different scenario because you are using two amps, more power will often make an audible difference in terms of bass control at higher volumes and so on. Modifying the car crossovers is not really viable and to be honest i don't know that there would be much benefit to it in terms of SQ gains, but if someone wants to give it a go and let me know the results, I'm all ears.

I tend to think that bi-wiring is often confused with bi-amping. I actually bi-wired my home audio spkrs and can catogorically say that it sounds as fantastic as it did when it was wired with single wires lol it may sound better but I cant be sure that it does.

But and its a big but, the bi-wire cables do look super funky

As for bi-amping, well the reality is almost all decent car audio sytems are in fact bi-amped as almost everyone has a dedicated sub amp, and that trend is now far more common in homw audio.

I think the issue is actually technically tri-amping and although this may or may not provide some SQ benefits, I also think that a suitably amped bi-amp system is all you need....well its all I need.

Anyway like $5000 rca's its up to the purchaser to decide if they are good value, not anyone else, and if it floats ur boat then its all good.
peace
Cyberpunky

Yeah that was a question i was meaning to ask you Bruce. I was thinking about getting some $6,000 RCA's (a new model) and also getting my brake callipers airbrushed, to improve braking, what do you think? LOL

okay, so everyone knows dyns love their power, but put it into perspective...

lets face it, a genuine 50ish watts into a set of dyns is enough to really start to rock the boat. yes, headroom is lovely, and yes the engineering inherant with dynaudio means they'll soak up 5 times that amount of power and love it... but how loud do you really want to go?

my home dyns (contour 1.3mkIIs) are known to be some of the most power hungry bookshelfes around... yet they sounded fantastic when they were running a little 35ish x2 pure class a amp (sugden masterclass). loudness wasnt this systems forte but they possessed all the loveliness and dynamic ability any set of "golden ears" could want.

the point i'm making is that you should be concerned mainly with the quality of the power, rather than the quantity. IMO your little audison vr, briged, through the standard passive xover arrangement, would be enough to make them sing. they'd sound sweet!

3ways versus 2ways.... well... i'd think it'd come down to what your ears tell you. never mind the saying "the more pieces you chop the signal into, the harder it is to put them back together".... the 2 or 3way sets are at the higher end of the component spectrum, and both will sound lovely. go out there and listen to both!

d

IMO having compared both the dyn 2 and 3 ways, the 3 ways win hands down. The midrange is up the there with the best you'll ever hear amd the 2ways dont even come close to the same quality as the the 3 ways. Just my opinion though, go listen to them your self and let yousears decide.

thanks everyone... i will try to find somewhere i can listen to morels and dyn's.
Cheers.