I am in the process of coordinating a group buy for Lambda TD series woofers including all sizes and models including the dipole models. The numbers tentatively look like ~25% off list prices up to 99 drivers. At 100 drivers, the discount should be closer to 30%.
Any interest?
Any interest?
It looks like in addition to your request, we might have another 8-16 drivers via PM interest.
I talked to John at AE and it looks like one requirement that may need to be added to this post is that he'd need 50% down upfront to purchase the materials for the group buy.
I talked to John at AE and it looks like one requirement that may need to be added to this post is that he'd need 50% down upfront to purchase the materials for the group buy.
50% down is OK with me...and I am considering a pair of TD6M's as well.
Is there a time frame?
Is there a time frame?
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I have been waiting for AES to release an 8" high'ish efficiency (~94 db/watt) wide bandwidth driver. John typically offers a special intro price on new speakers which makes them an attractive group buy item. A TD8M and TD8_Dipole could fire up group buy interest. It would be exciting if experts like JohnK from Music_and_Design or Linkwitz offered an AES speaker design that took advantage of the smooth, wide bandwith. (TD18_dipole + TD8_dipole + NEO3_dipole tweeter??)
Several diyAudio folks tested the early release TD6M speaker and recorded a few deep bumps in the SPL/freq curves which I think stopped several orders. If John has made any improvements in the TD6M or TD6S frequency/SPL smoothness, a new post of measured data could help this group buy.
A "real 18" woofer" with an Fs ~20Hz and Qts ~0.37 might also gain some group buy support.
I've been looking at the 18" dipole for a group buy item, but $350 per driver requires some published measurements.
Several diyAudio folks tested the early release TD6M speaker and recorded a few deep bumps in the SPL/freq curves which I think stopped several orders. If John has made any improvements in the TD6M or TD6S frequency/SPL smoothness, a new post of measured data could help this group buy.
A "real 18" woofer" with an Fs ~20Hz and Qts ~0.37 might also gain some group buy support.
I've been looking at the 18" dipole for a group buy item, but $350 per driver requires some published measurements.
I am interested in a pair of the dipole18, and a pair dipole8 if possible. I hope this group buy will become reality and that we can get a estimated time frame for this.
How have you planned to do the shipping?
How have you planned to do the shipping?
Hi,
Thanks Sveinung for your link on ae forums and dnewma04 for this GB.
I'm in for 2 TD6M and 2 TD6H (appolo uppgrade)
Thanks Sveinung for your link on ae forums and dnewma04 for this GB.
I'm in for 2 TD6M and 2 TD6H (appolo uppgrade)
Several diyAudio folks tested the early release TD6M speaker and recorded a few deep bumps in the SPL/freq curves which I think stopped several orders. If John has made any improvements in the TD6M or TD6S frequency/SPL smoothness, a new post of measured data could help this group buy.
Thanks. Following your comment I have further explored this. I find the TD6 is a driver with some issues...so I'll stay on the fence until more information is available.
A "real 18" woofer" with an Fs ~20Hz and Qts ~0.37 might also gain some group buy support.

I referenced this back to AVS where there is a long thread discussing SEOS builds, etc. The TD series driver being the ultimate driver for that design.
Thanks Doug, I'm going to be heading over there, as well. I think the final group buy thread is going to likely take place on AE's forums. Audiokarma.org may also have an interest thread posted.
How many are we in total now? It seems like it already is a lot of interest. Maybe we can do the group buy quite soon? I want to order as soon as possible 🙂
Great initiative 🙂
I am interested in 4xTD15H and 2xTD12M (apollo)
When will you conclude on the group buy? and what is the expected delivery time?
cheers
I am interested in 4xTD15H and 2xTD12M (apollo)
When will you conclude on the group buy? and what is the expected delivery time?
cheers
Still awaiting some details from John. But the basics are that 50% will be due upfront. AE will order the materials which will take approximately 2 months for delivery. At that point, he will start assembly and deliver based on the order of entries on the official group buy thread that will likely be hosted on his website. Depending on the numbers, I'd expect 2-3.5 months for delivery depending on your position on the list.
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