I’m not that good …age means I usually break something along the way
… Ok if it’s my gear … 
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I was joking (I think). You’ve done such a good job on yours . Seriously impressed 
Why thank you …Matt black rattle can and hi build primer can ..,. 
I think some pissed girlie Vodka Red Bull took out the Zero click stop track many years ago …
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This mornings effort was to measure my Electro voice ND2 Compression Drivers in the flares whilst still having some aural memory of the Neo 8 Planar.
in terms of lower frequencies, as expected, the neo 8 covers a bigger range to compensate for low efficiency and some FR spikes at 400hz and 11khz.
ND2
NEO8
next steps - make a proper flange adaptor for the neo 8
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I’d be tempted to do an adapter from the driver to the square part of the multicell. Fusion allows you to loft along rails, which would allow an exponential increase in area with a round-to-square profile change. Be a good test for your 3d modelling skills!
Yep cheers for the comment - That’s what I was thinking as well - I have already modelled a part that matches a 150mm x 35mm rectangle from the Neo 8 to the multicell 130 x 85 bowtie shaped internal hole area - that’s with a 25mm Z loft distance as a starter. I’m also thinking about partitioning/allocating the neo 8’s 48 slots somehow to match specific slot sets on the neo to a specific squares on the 1505B - the 20 innermost slots in banks of 4 on the neo seem to lend themselves to going to the middle five flares
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After many fruitless hours trying to get my 3D printer not to produce spaghetti I have finally sorted it and now am getting decent repeatability. Adaptors being made currently are 2 part and only a conical flare (for now)- 34 hours printing for a stereo pair. Exponetial flare set is work in progress.
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The 3d printed Adaptors were completed overnight and fitted to flares - I was very pleased that I managed to get really smooth transitions. The FR’s when compared between taped on with masking and with flared adaptors was not a whole lot of difference. Orange is with adaptor blue just taped on.
I took the opportunity whilst measuring to run measurements of all of my other Compression drivers GPA 390 and EV ND2 in identical circs.
An exponential transition from the Neo 8 to the horn flare flange is going to be 110mm long . Modeling that now
Here is a graph showing the three drivers in near identical conditions
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Looking good Andy!
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Thanks - Not sentiments I’m getting from Claire
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I have always realised that joining planar tweeter together to the horn over a short length adaptor wasn’t a fair test but I didn’t have any confidence in my 3d printer skills last week - I understand better now so after delivery of some new filament on Friday the plan is print a 110mm long version for stereo four halves are needed @ 18 hours printing each.
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Today has been busy due to a minor miscommunication between myself the guy building a frame for my panels for me
So I have some new arrivals due to be delivered on Monday- I was just expecting a 600x600 test baffle! It’s now all systems go removing the 48 drivers required from original panels and prepping them for refit onto 25mm mdf
Also my PLA filament arrived a day earlier than expected so the first 110mm adaptor is printing now - Only 11 hours from completion.
First set of long adaptors completed
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Re-installing the Sonido drivers after lining the Acousta rear chamber with some felt & getting the right sized T nuts into the cabinet.
These are very nice sounding units, more evenly balanced than most of the others I’ve tried including Lowthers.
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They look nicely made but couldn’t find any prices on their website.
Was going to suggest Cube drivers but just looked and their prices have rocketed since I last looked a few years ago.
They look really interesting Guy 
looking at the 8" full-range drivers SFR 200/A or Field Coil SFR 200/FC got the price list and pretty reasonable
SFR 200/A €495
SFR 200/FC €915
€45 postage
I paid €55 for delivery & yes that was the price for a pair of these SFR200a. But they seem like very good value compared with Lowther’s current pricing for Alnico units. The AER BD-5 were similarly smooth but the shape & size of their magnet doesn’t lend itself to the Acousta’s back chamber so they weren’t driving the horn very well.
Would certainly be interested to hear the FC version.
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Need to try the BD5’s in the TP1 enclosures when you are back up to full can-can specifications.
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Well I had an option of the AER BD4’s at Emporium but the trade in wasn’t worth my while for the Tunes and Voxativ field coils.
So have ordered the FC’s thanks for the heads up
Did you get stung for the 20% on import ?
I can’t recall. I did give him my Vat & EORI numbers. I don’t remember paying any more to anyone else ie couriers.
