IowaDIY 2026 Auction (No-reserve, all proceeds going to MAC)

The following are being put up for auction (~closing shortly after lunch Saturday at the show) with all proceeds going to MAC. I understand MAC has a PayPal account, thinking good old cash works as well. If you see something and can’t make it, plz connect with someone that will be attending- thanks.

Please send me a direct message with bids (and any suggestions on how to better manage this, i.e. is it better for me to just track and not list the bidder?). I’ll periodically update this list.

Andy

Per 4thtry suggestion: Yes, the drivers have been used in my builds, and overall I’d say the drivers are all in very good condition (if you bid and for any reason have an issue- no problem). Going back through my posts I’ve tried to ID builds/ dates. I will say the Heils, Beymas, MarkAudios, Epiques, and the Celstions are in excellent condition / barely used / listened to for a bit (months?) in my living room. I’d be happy to additionally post a picture of any, just let me know. I included the Minimus 7s biz I know some have successfully updated Xovers for these little metal case speakers.

current bid $ ~yr
pair Audio Nirvana Super 4+ ?
pair Audio Nirvana Super 6.5 ?
pair Beyma CP21/F 1 in H.F. slot loaded tweeter '24
pair Celstion FTX0617 6.5 in coaxials '18
pair DA AMT mini-8 '19
pair DA RSS210HO-4 $200 '23
pair DA RSS210HO-8 $200 '23
2nd pair DA RSS210HO-8 $200 '23
pair Epique E15011E-44 $120 '22
pair ESS Heils $200 '25
pair MarkAudio CHP-90 '24
single Velodyne 12 in driver (22.8lbs) ?
speaker pair Bose 101s white very old
speaker pair Realistic Minimus 7s very old

attached sheets on the AN 4+ and 6.5s

12 in Velodyne

4 Likes

Suggestion: Adding a column to your listing indicating the current driver age and/or cosmetic condition would be helpful. (i.e., New, Unused, Used-Years, Good, Fair, Tested, etc.,)

I want, like, half of this stuff. You’re killing me!

Definitely (IMO) some very interesting drivers and leads to fun project builds. I realized I was just keeping many of them ‘cuz I really like the drivers - but better off in new hands than sitting on shelves.

2 Likes

I recently started an inventory of all the drivers and such I have and it exceeds 100! This does not count a few kits remaining from Meniscus that go together with some assembled crossovers. Probably should think about bringing some to Iowa as well, though I imagine the kits would be a hard sell.

“I recently started an inventory of all the drivers and such I have and it exceeds 100!”

Amateur… :laughing:

I know I’m above there as well, but I’ve been using a lot of them.

3 Likes

Sales pitch: Markaudio CHP-90

Excellent (imo) as an extended midrange driver. Paper cone, pwr 40 watts (nom), with Xmax (Mech) +/- 7mm (one way)

https://www.madisoundspeakerstore.com/approx-5-fullrange/markaudio-chp-90-5-paper-cone-fullrange/![image|468x342](upload://i9bUTxeafwx1RjQQ9iaQdVxmRqY.jpeg)

I won’t be at Iowa. Anyone attending that will likely also be at InDIY?