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I'm coming to this thread late as my phone lines have been down and I've had no Internet connection for a week (I'm convinced that BT are the worse company in the country). Anyway, with apologies if I've missed anything as I haven't had time to read the whole thread yet but I would like to add my 2p worth...

For some time I've been aware that there is a discrepancy between my preferred cabinet theory which says that a cabinet should be dead and non-vibrational and my belief that some speakers which have ignored this 'rule' have an added realism in practice. Bosendorfer has recently released a speaker with a 'sounding board' (or 'horn resonator') - unsurprising for a piano manufacturer - and they claim they get greater depth in the soundfield as a result.

It could be that Bosendorfer are the first to use this sort of principle in a hi-fi loudspeaker but they certainly won't be the last. In fact the new Seventh Veil speaker will also utilize something in this vein, albeit taking a very different approach.

The way that moving coil loudspeakers disperse the sound is not the same as the way sound is dispersed from actual musical instruments. Taking the piano as an example it's apparent that a fair proportion of the sound emits from vibrations in the piano cabinet itself and the dispersion of a panel of a grand piano is more similar to the dispersion of an NXT speaker than to a moving coil device.

I have experimented with the 'Layered Sound' approach which uses an NXT panel in parallel with the moving coil, albeit at a lower volume. While holding the volume of the NXT at a level where no tonal difference can be heard whether it's on or off, a difference can be heard in terms of soundstage and realism. I am now convinced that this is something well worth doing and so will be including an NXT panel (plus digital amp) built into the stands of my new speaker. I will happily invite ZG members to audition the new design before I release it to the general public, in case anyone's interested to see and hear them.

Meanwhile Rory, if you want to experiment with this, buy a pair of NXT speakers with a digi amp (or similar) and run these in parallel with your main pair of rather interesting looking Vaessens. You need to be able to adjust the volume of the NXTs. With the volume of the NXTs below that of the moving coil speakers, quality is not quite so important so price can be kept reasonable.

<blockquote data-quote="7_V" data-source="post: 635630" data-attributes="member: 1217">I'm coming to this thread late as my phone lines have been down and I've had no Internet connection for a week (I'm convinced that BT are the worse company in the country). Anyway, with apologies if I've missed anything as I haven't had time to read the whole thread yet but I would like to add my 2p worth...For some time I've been aware that there is a discrepancy between my preferred cabinet theory which says that a cabinet should be dead and non-vibrational and my belief that some speakers which have ignored this 'rule' have an added realism in practice. Bosendorfer has recently released a speaker with a 'sounding board' (or 'horn resonator') - unsurprising for a piano manufacturer - and they claim they get greater depth in the soundfield as a result.It could be that Bosendorfer are the first to use this sort of principle in a hi-fi loudspeaker but they certainly won't be the last.&nbsp; In fact the new Seventh Veil speaker will also utilize something in this vein, albeit taking a very different approach.The way that moving coil loudspeakers disperse the sound is not the same as the way sound is dispersed from actual musical instruments. Taking the piano as an example it's apparent that a fair proportion of the sound emits from vibrations in the piano cabinet itself and the dispersion of a panel of a grand piano is more similar to the dispersion of an NXT speaker than to a moving coil device.I have experimented with the 'Layered Sound' approach which uses an NXT panel in parallel with the moving coil, albeit at a lower volume. While holding the volume of the NXT at a level where no tonal difference can be heard whether it's on or off, a difference can be heard in terms of soundstage and realism. I am now convinced that this is something well worth doing and so will be including an NXT panel (plus digital amp) built into the stands of my new speaker. I will happily invite ZG members to audition the new design before I release it to the general public, in case anyone's interested to see and hear them.Meanwhile Rory, if you want to experiment with this, buy a pair of NXT speakers with a digi amp (or similar) and run these in parallel with your main pair of rather interesting looking Vaessens. You need to be able to adjust the volume of the NXTs. With the volume of the NXTs below that of the moving coil speakers, quality is not quite so important so price can be kept reasonable.</blockquote>

[QUOTE="7_V, post: 635630, member: 1217"] I'm coming to this thread late as my phone lines have been down and I've had no Internet connection for a week (I'm convinced that BT are the worse company in the country). Anyway, with apologies if I've missed anything as I haven't had time to read the whole thread yet but I would like to add my 2p worth... For some time I've been aware that there is a discrepancy between my preferred cabinet theory which says that a cabinet should be dead and non-vibrational and my belief that some speakers which have ignored this 'rule' have an added realism in practice. Bosendorfer has recently released a speaker with a 'sounding board' (or 'horn resonator') - unsurprising for a piano manufacturer - and they claim they get greater depth in the soundfield as a result. It could be that Bosendorfer are the first to use this sort of principle in a hi-fi loudspeaker but they certainly won't be the last. In fact the new Seventh Veil speaker will also utilize something in this vein, albeit taking a very different approach. The way that moving coil loudspeakers disperse the sound is not the same as the way sound is dispersed from actual musical instruments. Taking the piano as an example it's apparent that a fair proportion of the sound emits from vibrations in the piano cabinet itself and the dispersion of a panel of a grand piano is more similar to the dispersion of an NXT speaker than to a moving coil device. I have experimented with the 'Layered Sound' approach which uses an NXT panel in parallel with the moving coil, albeit at a lower volume. While holding the volume of the NXT at a level where no tonal difference can be heard whether it's on or off, a difference can be heard in terms of soundstage and realism. I am now convinced that this is something well worth doing and so will be including an NXT panel (plus digital amp) built into the stands of my new speaker. I will happily invite ZG members to audition the new design before I release it to the general public, in case anyone's interested to see and hear them. Meanwhile Rory, if you want to experiment with this, buy a pair of NXT speakers with a digi amp (or similar) and run these in parallel with your main pair of rather interesting looking Vaessens. You need to be able to adjust the volume of the NXTs. With the volume of the NXTs below that of the moving coil speakers, quality is not quite so important so price can be kept reasonable. [/QUOTE]

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