Chopthebass

[quote name='alexclaber' post='47982' date='Aug 20 2007, 09:27 PM']Well the big problem you're up against is that there are hardly any 4 ohm 15" woofers available. Combine that impedance difference with the higher sensitivity of the Schroeder due to its undersized cab and high tuning and you'll barely hear the 15". The best 15" for bass guitar bottom is the Eminence Kappalite 3015LF IMO. High sensitivity, good Qts for full bottom down to resonance, huge Xmax. Eminence have a selection of 1x15" and 2x15" designs for the 3015LF to save you doing the work yourself, though now I think about it your best best is to go for as large a cab as you're happy carrying and tune it to 50Hz to get a big hump in the lows to keep up with the Schroeder's high-bass hump. Alex[/quote] Thanks Alex. I've not heard of the Kappalite. I'll check out Eminence web site.

[quote name='G MAjor' post='47914' date='Aug 20 2007, 08:15 PM']you could check out CPC catalogue it's a stockest of celestion and emminance speakers they did sell a book on the baffeling ' porting litres sq'd topic, i did get a copy , worth tring online catalogue, ?[/quote] OK will do, Thanks

[quote name='alexclaber' post='47808' date='Aug 20 2007, 05:03 PM']I prefer WinISD Pro but it is a fair bit harder on the brain - though worth the effort IMO. What's your situation, are you looking to upgrade an existing cab with a new speaker, build a cab for some speakers you already have, or do a new design from scratch? Budget/needs? I've been through a ton of my own theoretical designs over the past year and despite having some great ideas (if I say so myself!) I've actually settled on a BFM design instead... Alex[/quote] Alex, I've ordered a DB750 and Schroeder 210212 cab, and I was thinking of adding a 1x15 cab with about 500w power handling at 4-ohms. This will bring the overall stack down to 2-ohms and unleash the full power of the head. I want the cab to have the same footprint as the Schroeder and be tuned as low as poss. I was thinking of using a B & C 15NDL76. The cab needs to be 584mm wide x 406mm deep, and the height will be whatever volume is required. Ideally I'd like the cab as low as poss. I'll have a go at WinISD, unless someone out there tells me the answer first! Thanks

Thanks for the link Will. Hopefully using it isn't too involved!

Loz, I can't find the pro-tec case you mentioned. I went to their website and this is what I found... [url="http://www.protecmusic.com/items.aspx?ProductID=20&InstrumentID=2&InstrumentGroupID=2&CategoryID=1&subCategoryID=34"]http://www.protecmusic.com/items.aspx?Prod...ubCategoryID=34[/url] That doesn't look man enough! Am I looking at the wrong product?Cheers Ian

Thanks Loz, that helps immensly. Please let us know how she performs at gig volume. The Epifani speakers are great. I was using two UL410s a while back before I realised my rig sounded better with one! I now got serious GAS for one of these DB750, so the cabs got sold, so at the moment I'm speakerless!! Anyway, thanks for your detailed responses. Cheers Ian

Does anyone know the simplist way of correctly sizing up cabinets for given drivers, and also correctly calculating port sizes? Most speaker manufacters list the design parameters, all I need is som formulas or methods of calculating volume! I'm sure the brainpower is out there in BW! Cheers

I agree with Toasted. I use a Lakland 55-94, but the Skylines are just as good - same p/ups and electronics. I've owned top-end Fender V's and they had serious QC issues.

[quote name='Oxblood' post='47604' date='Aug 20 2007, 10:58 AM']Know what you mean, mate. I've never been a big fan of trousers, as I feel they cover up the legs. Like...er...HELLO! THAT'S WHAT COMPRESSORS DO! Sorry, Ian - just couldn't resist that one. [/quote] Nicely put mate!!! Love it!

[quote name='lozbass' post='47592' date='Aug 20 2007, 10:23 AM']Hi Ian, thanks for this - I would certainly go ahead with the purchase! I think there's just one thing to bear in mind, the 750 is really heavy. The unit itself is around 46lbs and mine is in a rack bag (which I'd certainly recommend) which adds around 6 or 7 pounds. Beyond that, in my opinion, the amp is stunning. The tone is superb (I'm still exploring!) - very big and present with incredible headroom. I was surprised initially by the slightly compressed sound - on first plugging-in, the volume across strings (and individual notes) was really even, something like using a very expensive, high-quality studio compressor. With the tone controls flat, the sound was fabulous, the kind of thing that brings a grin to your face - upping the gain to beyond 1 or 2 o'clock introduces a little grit, aggression and tube-warmth but with no real dirt or break-up. I'll write a detailed - and objective - review soon. For now, I'm having real fun - this is an incredible unit that appears to be living up the the hype and my expectations. Cheers, Loz[/quote] Thanks Loz. I've never been a big fan of compressors as I feel they restrict dynamics. I'm sure loads out there will disagree. So I hope when you say it has a slightly compressed sound that it isn't too squashed and cyts dynamics and percieved volume. Because thats what I've found with pedals. I need volume and headroom! Is the gain set like say a Trace, where you set it high as poss with the clip light coming on when played hardest? or is this different being a valve front end? What rack bag are you using? Is it stron enough for the weight? I've got a 3U full flight case, and I'm worried its gonna be too heavy in that! Remind me what cab you're using with it? Cheers Ian

[quote name='nedsbeds' post='43184' date='Aug 9 2007, 10:28 AM']The grill was done like so... when cutting the grill, masking tape and a metal blade in the jigsaw. For bending I clamped two pieces of wood on the face and back of where I wanted the bend and then just used another piece of wood and pushed down. then I used a mallet to hammer it against the clamped wood. The most of it was masked and the hammered part wont be seen so I wasn't worried about damaging the paint too much. In the end it didn't actually damage it. (apologies for the 2 minute diagrams!) The grill is mounted like this It isn't actually attached to the sloping horn (only the bottom and top plates) but the 60degree bend does mean that it is a, very rigid, and b held fast against the horn so that it can't move. It's pretty heavy duty grill this![/quote] Nice job! What sheet does the grill material come in? Where did you get it?

Great news! I think I'll go ahead with my purchase! Are you pleased with the sound? Cheers Ian