alexclaber Posted May 14, 2008 Share Posted May 14, 2008 [quote name='warwickhunt' post='198692' date='May 14 2008, 01:10 PM']I know where what you're saying here Alex (mid humps et al) but it was 'noticeably' different from both the 5.3 ohm Epi and the 5.3 ohm Tech and at various levels with a variety of amps! I would concede that the natural tone of the cab might account for some of the perceived volume increase (and nobody was more surprised than I) but it wasn't a subtle difference [/quote] I realise that but the difference between 4 ohms and 5.3 ohms is tiny in terms of dB output. Furthermore the ohm figure is just a nominal one which is very different to the reality. How many ohms is that speaker? That is a typical ported cab plot btw. The small Schroeders don't just have a mid hump - almost their whole bandwidth output is boosted by virtue of having very little bottom - make the cab smaller and tune the cab high and this is the result. This is the same reason an OmniTop 12 is louder than an Omni 10. Alex Quote Link to comment Share on other sites More sharing options...
wateroftyne Posted May 14, 2008 Author Share Posted May 14, 2008 Hi Alex This wasn't a small Schroeder - it was a 21012L. I'd love to know what accounted for the difference. The contrast with the other cabs was immediately apparent, and striking, like the volume had been given a good crank... Quote Link to comment Share on other sites More sharing options...
guyl Posted May 14, 2008 Share Posted May 14, 2008 Nice-one guys! Thanks for taking the time to report the whole experience! Quote Link to comment Share on other sites More sharing options...
alexclaber Posted May 15, 2008 Share Posted May 15, 2008 [quote name='wateroftyne' post='199129' date='May 14 2008, 10:29 PM']I'd love to know what accounted for the difference. The contrast with the other cabs was immediately apparent, and striking, like the volume had been given a good crank...[/quote] Sensitivity is what made the difference. 4 ohms vs 5.3 ohms is less than a 1dB difference, nothing like a striking difference, in fact barely audible. Alex Quote Link to comment Share on other sites More sharing options...
wateroftyne Posted May 15, 2008 Author Share Posted May 15, 2008 [quote name='alexclaber' post='199276' date='May 15 2008, 08:26 AM']Sensitivity is what made the difference. 4 ohms vs 5.3 ohms is less than a 1dB difference, nothing like a striking difference, in fact barely audible. Alex[/quote] Ta for that. Is the sensititivity something that comes from the spec of the drivers, or is it the construction of the cab? Quote Link to comment Share on other sites More sharing options...
bass_ferret Posted May 15, 2008 Share Posted May 15, 2008 Both. Horn loaded cabs are generally more sensitive than reflex ported cabs that are generally more sensitive that sealed cabs. The Schroeder has some degree of horn loading on the diagonal facing driver. Quote Link to comment Share on other sites More sharing options...
warwickhunt Posted May 15, 2008 Share Posted May 15, 2008 (edited) [quote name='alexclaber' post='199276' date='May 15 2008, 08:26 AM']Sensitivity is what made the difference. 4 ohms vs 5.3 ohms is less than a 1dB difference, nothing like a striking difference, in fact barely audible. Alex[/quote] This does genuinely interest me Alex and I know that you have as much knowledge as any one in this respect (and more than most) so I'd genuinely like to know is this difference in 'perceived' volume (heard by all three of us) dependent upon the output? That sounds like daft question but what I'm getting at is that at a low/moderate volume the Schroeder was very much louder than either the Tech or the Epi 310, however if the wick is turned up and the same test done again the volume differential is diminished. Is this simply because our ears and able to differentiate at higher volumes or is it that the other cabs designs are coming into their own. For referrence the Tech 610 cab is 5.3 ohms and 105db, the Schroeder is 4 ohms and 104db and the Epi 5.3 ohms and 103db... the ohmage should counter the sensitivity in each I would have thought Edited May 15, 2008 by warwickhunt Quote Link to comment Share on other sites More sharing options...
alexclaber Posted May 15, 2008 Share Posted May 15, 2008 [quote name='warwickhunt' post='199584' date='May 15 2008, 01:57 PM']This does genuinely interest me Alex and I know that you have as much knowledge as any one in this respect (and more than most) so I'd genuinely like to know is this difference in 'perceived' volume (heard by all three of us) dependent upon the output? That sounds like daft question but what I'm getting at is that at a low/moderate volume the Schroeder was very much louder than either the Tech or the Epi 310[/quote] Your ears are less sensitive to low frequencies at low SPL, so when playing quietly the more midrangey the cab, the louder it will sound. [quote name='warwickhunt' post='199584' date='May 15 2008, 01:57 PM']However if the wick is turned up and the same test done again the volume differential is diminished. Is this simply because our ears and able to differentiate at higher volumes or is it that the other cabs designs are coming into their own.[/quote] When you turn up you can hear the lows that the other cabs are producing better and thus they seem less quiet. Also as you turn up the speakers start to run into compression on low notes due to over-excursion. [quote name='warwickhunt' post='199584' date='May 15 2008, 01:57 PM']For referrence the Tech 610 cab is 5.3 ohms and 105db, the Schroeder is 4 ohms and 104db and the Epi 5.3 ohms and 103db... the ohmage should counter the sensitivity in each I would have thought[/quote] Those sensitivity specs that are quoted are the usual useless bs. The first step to understanding what's going on with speaker cabs is to stop believing what most of the manufacturers are telling you. Alex Quote Link to comment Share on other sites More sharing options...
cetera Posted May 15, 2008 Share Posted May 15, 2008 [quote name='voxpop' post='198886' date='May 14 2008, 05:00 PM']Hi Guys, did anyone try or like the Glock head, I have the Heart rock and wondered what you thought of the Art. It was on my short list of gear to try but couldn't find one in the UK. Thanks.[/quote] I believe UK basschat member 'guiguite' may have one of these for sale? Quote Link to comment Share on other sites More sharing options...
warwickhunt Posted May 15, 2008 Share Posted May 15, 2008 [quote name='cetera' post='199899' date='May 15 2008, 08:26 PM']I believe UK basschat member 'guiguite' may have one of these for sale?[/quote] Not any more... this is it Quote Link to comment Share on other sites More sharing options...
pete.young Posted May 16, 2008 Share Posted May 16, 2008 [quote name='jamesf' post='198592' date='May 14 2008, 11:16 AM']i love the sound of EBS gear, but the cabs are just too heavy.[/quote] I don't understand this comment. My EBS 2x12 Neo is about 24 Kg, which is less than half the weight of the 4x10 it replaced. Quote Link to comment Share on other sites More sharing options...
BigRedX Posted May 16, 2008 Share Posted May 16, 2008 Yes but the non-neo ones weigh a ridiculous amount. Nice and solid and sound great but I'm already fed up with only just being able to lift my Pro-Line 410 on my own... Quote Link to comment Share on other sites More sharing options...
cd_david Posted May 18, 2008 Share Posted May 18, 2008 [quote name='alexclaber' post='199276' date='May 15 2008, 08:26 AM']4 ohms vs 5.3 ohms is less than a 1dB difference, nothing like a striking difference, in fact barely audible.[/quote] 1dB would equate to approximately 67% increase or usage of your total remaining power as a 3dB raise is an actual doubling of amplitude, granted the average humans ear can only detect an approximate perceived increase of 23% but stlll is not a small amount. Cheers Dave Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.