I’m in the process of moving so it’s time to list some excess after figuring out what I’ll need for two speaker builds. Shipping from MA but would prefer pickup for the drivers because I don’t know how well they’ll survive the trip. I have no idea what to price the drivers at so I’ll list them at 75% retail at most, or parity with used market for anything I can’t find new. I would be glad to do bundle offers.
2. Audio Technology 4H520613SD - Works great, just not what I’m looking for (I’m using a similarly sized C-Quenze version). 270 euro each new, listing at$400 $300 $250 $225 for the pair.
3. Audio Technology 6H521706SD - also works great, using the 8 inch version instead. 400 euro each new,$600 $450 $375 $325 for the pair.
4. Usher 8945A - a little dusty but works great. $130 each new,$195 $125 for the pair.
5. Unknown Usher 7 inch - I don’t know what these are. The box says 8836AC but these are definitely paper. The 8836AC was cleared out for $49 each so I can do$80 $60 for the pair if you buy another pair.
6. Scanspeak 21W/8554-00 - Probably needs to be refoamed. I’ve seen people sell them for $200 a pair but if you buy another pair of drivers I can do$125 $100.







1. MiniDSP DDRC-22A: Works perfectly, comes with UMIK and I can help the buyer with dirac license transfer. $319 plus shipping.
2. Audio Technology 4H520613SD - Works great, just not what I’m looking for (I’m using a similarly sized C-Quenze version). 270 euro each new, listing at
3. Audio Technology 6H521706SD - also works great, using the 8 inch version instead. 400 euro each new,
4. Usher 8945A - a little dusty but works great. $130 each new,
5. Unknown Usher 7 inch - I don’t know what these are. The box says 8836AC but these are definitely paper. The 8836AC was cleared out for $49 each so I can do
6. Scanspeak 21W/8554-00 - Probably needs to be refoamed. I’ve seen people sell them for $200 a pair but if you buy another pair of drivers I can do







Last edited:
Bump. I also have a pair of ESS AMT tweeters from a Tempest that was too far gone that I don’t know how to value. Make an offer for any of these; I just want them out of the house
Hi I'm interested in the AT drivers, but live in Australia. Would you be able to ship there?
I'm thinking of pairing with Bliema tweeters and a Satori 9.5.
Could you please PM me? (I don't think I can PM you -- too few posts from my account).
Cheers
I'm thinking of pairing with Bliema tweeters and a Satori 9.5.
Could you please PM me? (I don't think I can PM you -- too few posts from my account).
Cheers
Yes please.Bump, I also have a DATS V3 that I can use to measure any parameters requested.
Can you take a free air impedance sweep of the Flex Units and post a zoomed in view, eg. max impedance is 15ohm?
What model is this?Bump. I also have a pair of ESS AMT tweeters from a Tempest that was too far gone that I don’t know how to value. Make an offer for any of these; I just want them out of the house
Yes please.
Can you take a free air impedance sweep of the Flex Units and post a zoomed in view, eg. max impedance is 15ohm?
4H:
6H:
I did 20ohms but if 10 would be more helpful I can do this again.
Bump, I brought the drivers with me to my new apartment and have a lot of extra bubble wrap I can use to keep the drivers safe while shipping.