I need a mid bass driver, preferably 6.5", 7" if I have to. To get around 300wrms.

Max is $300, used or second hand.

What do you use/recommend?

Peerless SLS 6.5"

Try to find something for cheaper, that hits half as hard!!

What's the RRP and where to get them, or a distributor or something?

What about the DD midbass woofers?

did you want 1 midbass for $300 or two for $300?

Two, for the doors.

+1 On the where can you find/audition said Peerless products?

Also along the same vein (ok a slight hijack), has anyone had dealings/heard of these?

Wavecor Neo 6.5"
Visaton GF200 8"

Any idea if they are any good?

Purely out of interest because I found them by accident.

Thanks,

Jono

http://www.tymphany.com/830946

Madisound has them for 45 bucks each, US Dollars.

Thanks ~thematt~,

I have been looking through the madisound site.

I have looked at a few woofers, that will primarily used in the 90-200 Htz area, should I be looking for a 7" woofer, or a 6.5", I have at least 140w rms to play with.. And they will be in custom sound deadened doors.

I was looking at the woofers that are the premium line, but then I saw glass fiber and wood fiber cones. What is the difference?

I dont get the question. The difference is they are made from different materials (the cone)?

Is there any difference in sound? Do they not tear as easily? What is the purpose of putting different materials in the cone?

Tear? No. Physical permanent damage shoudl be a long thwarted non-concern for the designers of speakers.

Cone material selection changes multiple parameters, all of which are important to varying degrees.

As a speaker plays higher into its frequency response range, the cone will begin to lose its ability to interact with the various stresses and strains co-existing across its surface. There will be a point where the speaker basically 'loses it', and the distortion artifacts skyrocket whilst the frequency response goes to rat $hit. This is known as the cone breakup point.

Cone material selection will take this into account. Softer cone materials (paper pulps) will have softer breakups and 'gentler' failure points, so that this breakup node isn't audible. This is evident in a lot of Pro Audio speakers, because of their requirements to play right through the breakup point, and allow the inductance of the speaker to roll off the top end. This equates to either no crossover required on the top end, or basic ones only.

Because of the softer nature of the cone, there is a lot more energy that is retained by the cone, and a lot more deflection across the surface during reproduction. This will result in a softer 'warmer' sound, a more 'forgiving' driver response, higher distortion artifacts, and if its a midbass/subbass unit - a smoother thump.

Stiffer cone materials, such as aluminium and magnesium, have sharper breakup points. When they 'lose it', they lose it good. Its audible. The reason why the designer chose to use such a material is because of its lower energy retention and lower deflection across the cone. Its basically a stiffer unit. This is closer to a perfect 'point source' reproduction unit that is capable of producing a single disturbance that seems to originate from a 'point', and hence a more 'perfect' driver.

A designer would choose this in a high fidelity environment that requires lower distortion, but has additional resources that can allow sharper crossover points, so the speaker doesn't play up to that audible breakup but without sacrificing bandwidth. Such is shown with home hi-fi and Xovers at 24db/oct slopes or greater.

Evidently, stiffer materials sound 'thinner', have less distortion artifacts and do not 'hide' information (highly revealing). Midbass and subbass units produce more of a 'snap' then a 'thump'.

Many designers want the best of both worlds (obviously) without the negatives (who doesnt). And so begins an endless research and development (for those few companies that actually bother anymore) for the 'best' cone material.

Polyplop drivers tend to sit in the middle of these extremes. Carbon and Kevlar cones towards the stiffer end, and pulp drivers towards the softer end. All the time, weight and moving mass on a cone is important, so stronger for lighter is usually something to strive for.

Some special drivers that use R&D very well on their cone designs.
Seas Excel: Their metal cones are extraordinary when it comes to distortion.
Scanspeak Revelators: Their pulp cones are world-leading evidence of extremely stiff, but high energy storage (for that softer sound and lower distortion)
Pioneer PRS: The latest line uses a Kevlar-style cone design that has almost no energy storage at all!! Cheap, light, stiff and WAY low distortion figures.
Audiotechnology (come on, had to throw that one in!): They use Polyplop, but reinforced with magnesium in a special way. Low distortion, very forgiving, ausome non-audible breakup modes.

Cheers. It looks at though I am going to get the Peerless SLS 6.5" drivers. Thanks for your help.

I had a good look into shipping, and due to financial contraints plus the disadvantages of O/S products, I have been looking for a good 2 way set I can run active out of custom doors. I have been looking into the Type R's, anyone have an gripes with this set?

You can also buy them from WES components the Aussie importer(or any Audio or electrical store who has an account with WES) and they'll probably be under $100 per driver. http://www.wescomponents.com/

Goddamint.

Now I have to chose between semi-active 3 way and active 2 way.

Cheers for the info though

I'd go semi active 3 way, I've heard plenty of nice 2 ways, but so far I've only heard one that to me had similar performance to the average 3 way, 3 ways can just do a whole lot more easily.

Hmm.

Last night I drew up a whole bunch of plans for doors. I'll have to scna them onto here and place it under the well drilled eyes of MEA.

One thing though, acoustic foam? Worth it?

such as Plain Chant?

if thats what you mean i think it is worth it......made a big difference to my undeadened doors so i cant wait to get them sealed up now