The Subwoofer DIY Page - Discussion Forum

[ The Subwoofer DIY Page - Discussion Forum ] [ FAQ ]

[Previous Message] [Next Message]

Date: August 06, 2003 at 11:15:44
From: Brian, [206-48-63-223.caribsurf.com]
Subject: Re: ....explained..


>if you want 16mm Xmax underhung distortion POS that
>is in turn less efficient and needs more power,you
>can get it.

From what I've read, that description, apart perhaps from "less efficient", cannot be applied to the drivers that I mentioned.


>this assumes that amplifiers dont have shipping costs
>to new zealand
>
>this assumes that you spent your money buying the JBL
>new not 2nd hand.

Now you're moving the goalposts in the middle of the game :-).


>do 2 tempests = 175litres total?

You can use two Adire Audio Tempests in a 175 cu.ft. box. Sealed, Qtc = 0.81, before you stuff, 100% stuffing should bring it closer to the magic 0.71 number.


>Tempest $385.00 Plus GST
>+2 amps
>2 tempests=770$
> Redgum Amp
>2x RGSW-2 $465.00=930$ of amp

You don't need two amps, just one bigger one :-). In this case something around 700W into 8 ohms (even more if you can afford it). If it can do that into 2 ohms, great - that means that you can wire the Tempests in parallel (I'm not a fan of series-wiring for subwoofers).

Finally, a note on efficiency - the JBL 2226H has a reference efficiency of 97dB, which is great. However, if you're planning to use it in an EBS actively-eq'd alignment like Stig Tangen's "Almighty Subwoofer", you can expect the "in-band" performance of the alignment to be several dB less than this.


  • View the previous message in this thread
  • Go to the top of this thread
  • View entire thread
    		•

    Posted with TalkShop version 2.74

    [Previous Message] [Next Message]



    Follow Ups:

    [ The Subwoofer DIY Page - Discussion Forum ] [ FAQ ]