Indian equivalents of the following DIY items.

[ssSai]

I respect tcpip's view. Yes, for a fresher, it is best to stop breaking your head after a certian point and put to practice the knowledge you think you have aquired. The result will give you a feed back loop and the cycle goes on and on.

My final BSL Choices (my order of preference):

1> DPL12 with a 15" PR [Adire Audio].
2> Peerless XLS 12" with the XLS PR .
3> Shiva Mark IV (2#) (my least preferred option).

I will be thinking about the amplifier only when the drivers I get are into the enclosure I am supposed to design and make.

I mailed the AdireAudio Sales....they tell that the dealer in germany must have all of their products.

Hence I will get the cheapest option as per the german prices.

[SIZE=3]Does anybody have the spec sheet of the DPL12 and the PR15. The adire website has not updated its links to these products. I only have what most of the sites display (Only some TS params).[SIZE=3]

[ssSai]

Can anyone suggest me a good looking (cosmetically) 15" Passive Radiator.

The 15" PR from Adire Audio seems rather tame. I really will not be successful in flaunting it on the enclosure.

My plan is to use the 12" subwoofer driver in downfiring alignment and have the Passive Radiator in the front baffle of the enclosure.

Is that fine??

Checked out d-s-t.com, the scan speak PR looks awesome, but is a 12 incher.

15 incher PR suggestions please................

[navin]

very few PRs can be used down firing.

Legacy and VMPS are 2 that I think used this principle.

usually cone sag will occur for most PRs so I'd not recomend it.

if you dont want to show it of how about rear firing?

[ssSai]

Navin,

What I meant was different.

Example:

I will use, say the DPL12 in down firing alignment and use the PR on the front baffle.

What I understand from you is that a PR should not be down firing, else it will sag. Right??

[navin]

so will many 12" woofers. please check with the manufactuer or others before you do this.

[gjo]

Sai

You should get specs on these drivers through the diyspeaker.org site-they have a section called the LSDG, which you need to read-it has a lot of info that you will find useful. I dont have the link offhand, but if you cant find it email me, I'll get the url.

Peerless drivers, unlike many others are used by Bamberg and can be used as far as I know in downfiring alignments. My Lambda drivers, OTOH, are not designed for downfiring. Shivas are. I dont know about the Tempest. I use my ACI DV-12 in a downfiring enclosure.

Ultimately it doesnt really matter to much, IMHO.. You need have the driver and the PR facing the room, or if you decide to use two PRs then there should be a gap betwen the adjoining wall and the enclosure-you dont want it too close to the wall..PRs are Navin said are not designed for downfiring. I have the driver and the PR mounted to two adjoining sides. My Lambda 15 inch PR looks impressive, but the sound is what ultimately matters, and it sounds really good!

George

[ssSai]

I got a reply from the Adire Tech Support. The Shivas and DPL12s are designed for downfiring apps.

Infact, they pointed out that their pre-designed cabinets have both the drivers in the downfiring mode.

Hence there should be no prob in me using a shiva, XLS or the DPL12 in the down firing mode.

SO GUYS ANY NAMES FOR THE PLEASING PR.

[gjo]

Sigfried Linkwitz-linkwitzlabs.com uses Peerless drivers in a downfiring dipole enclosure that you may want to check.

Sai I really dont think the appearance of the PR is a big deal-the performance is! I have ordered a couple of PRs from Stryke Audio-www.stryke.com-check their site and their forum, there is alot of useful info.

George

[navin]

Originally posted by gjo
Peerless drivers, unlike many others are used by Bamberg and can be used as far as I know in downfiring alignments. ..I use my ACI DV-12 in a downfiring enclosure.

george, how many subs do you have? lambda, DV12, what else?

i have used dv12's in down and rear firing. in my room the rear firing sounded better. why dont ask. i dont take many measurements. i like something i stick with it. i dont i change. simple.

as best i know the xls can be down fired.

when i bought my 4 dv12s (actually we shipped 6 of them from aci to india) i had emailed mike and he told me something to the effect "the dv12 can be downfired but he does not have long term tests to confirm how long it's suspension will last in this position".

[gjo]

Navin

On a regular completed daily listening basis-one Lambda and one DV 12 sub. I have a Lambda driver waiting to be completed, maybe sometime in the next 6 months. When I started my first project(DV 12), about 5 years ago a friend ( a guy whom I consider my guru) built the ACI Titan, using a 10 inch downfiring driver, at about the same time as me..That's the sum total of my experience..


George