7Pi plans [message #48753] |
Mon, 30 January 2006 15:10 |
Otor
Messages: 12 Registered: May 2009
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Chancellor |
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Hello, could I have plans for 7pi corner-horns using Eminence Kilomax 18" ? What's also the difference between Magnum 18 and Kilomax 18 (sonically speaking) ? Is Alpha 10 instead of Delta 10 a bad choice for the middle-horn ? Could I also use JBL 2426H instead of Eminence PSD 1" ? Thank you in advance, O'Tor
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Re: You've got mail! [message #48757 is a reply to message #48755] |
Tue, 31 January 2006 04:59 |
O'Tor
Messages: 2 Registered: May 2009
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Esquire |
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Wayne, Thanks, I’ve replied you by email – you sent me by mistake 15” version and I was interested more in seven π-18 corner horn “Premium Series”. As I already have 4 pieces of kilomax 18” I was wondering to use two of them per side in push-pull configuration in order to decrease volume of the box and also to decrease distortion (kind of shorting ring effect?). I suppose in this case I have to reduce cabinet volume by 2, to recalculate the port length accordingly and, the hard part, to recalculate crossover in some way – could you help me with that please? Thanks, O’Tor
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Re: You've got mail! [message #48768 is a reply to message #48766] |
Wed, 01 February 2006 02:06 |
O'Tor
Messages: 2 Registered: May 2009
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Esquire |
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Wayne, First, thank you for 18" plans. I meant push-pull in face-to-face - "Isobaric" - arrangement, as for example on http://diyaudiocorner.tripod.com/images/clam.gif. The box volume has to be 1/2 in this case. When I connect speakers in parallel, I suppose that impedance pas from 8 Ohms to 4 Ohms (rough approach...) so I suppose the only change I have to do is modify L3 accordingly. I imagine two possibilities: to raise the value of L3 from 5mH to 10mH and put 2 woofers in parallel: 2L-(W||W); or to keep 5mH with each woofer and put the combo in parallel (L-W) || (L-W). Which approach would you recommend? Is there anything else I have to modify? Thanks, O’Tor
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Re: You've got mail! [message #48797 is a reply to message #48766] |
Fri, 03 February 2006 19:26 |
Leeloo
Messages: 2 Registered: May 2009
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Esquire |
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Any idea what will be the size of push-pull π cornerhorn with a pair of 18" drivers? Maybe as it is in the corner the larger size will less WAF problematic than two 12π in a living room off 50 m2. Thanks and Regards, Matjaz
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