Search found 9 matches

by Krillin
Wed Sep 08, 2021 11:48 am
Forum: Home Theatre/Stereo/Auto Sound
Topic: David MTM spacing with tweeter or ribbon
Replies: 3
Views: 895

Re: David MTM spacing with tweeter or ribbon

Thanks Bill. I decided to go the long ribbon route and will space them as close as possible.
by Krillin
Sun Sep 05, 2021 5:29 pm
Forum: Home Theatre/Stereo/Auto Sound
Topic: David MTM spacing with tweeter or ribbon
Replies: 3
Views: 895

David MTM spacing with tweeter or ribbon

When using the 5FE120 or similar drivers with the David MTM what is the maximum distance the midwoofers can be to avoid issues? I have an old pair of Transducer labs 120mm diameter domes I can use and I assume they should work. However, I am really wondering about how a 6.3"-7" or 160mm-18...
by Krillin
Sat Feb 27, 2021 8:13 pm
Forum: Home Theatre/Stereo/Auto Sound
Topic: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?
Replies: 20
Views: 3009

Re: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?

I was asking impedance questions only because I have both solid state and tube amplifiers. And more importantly I intend to add a SE tube amplifier to the mix. Thanks Bill There is one last question. There is a 95db tweeter I am looking at with a stated 6-ohm impedance but on the graph drops down to...
by Krillin
Mon Feb 22, 2021 5:26 pm
Forum: Home Theatre/Stereo/Auto Sound
Topic: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?
Replies: 20
Views: 3009

Re: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?

Well good news Leland has started my flatpacks :) Bill, is there a published impedance/phase graph for the David with the recommended drivers? Also, the plans state that the mid-bass driver crosses at 3khz and needs to be 8-ohm 90db+. Assuming that there is no breakup how much of a rise is allowed a...
by Krillin
Wed Feb 10, 2021 9:59 pm
Forum: Home Theatre/Stereo/Auto Sound
Topic: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?
Replies: 20
Views: 3009

Re: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?

I'm still waiting on my speakers cabinets to be built. The guy at speakerhardware did state he had a lot of orders which is fine. While I wait I realized I still have my Acoustic Elegance TD6M-4 (97.5db, old version) and an Acoustic Elegance TD6M-8 (94.5db, new version) that I picked up used at good...
by Krillin
Sun Jan 31, 2021 5:16 pm
Forum: Home Theatre/Stereo/Auto Sound
Topic: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?
Replies: 20
Views: 3009

Re: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?

Everything. Lots of Spotify playlists literally anything from the 70's to today of all genres. I would say 70% HT and 30% music but this will be mainly a bedroom setup and I don't need 20hz content for a bedroom. I'll just go with the MCM or Dayton. The high distortion numbers scared me on these sma...
by Krillin
Sun Jan 31, 2021 4:42 pm
Forum: Home Theatre/Stereo/Auto Sound
Topic: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?
Replies: 20
Views: 3009

Re: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?

I'm building the Davids which were designed with the MCM subs in mind. So then the MCM or Daytons will go loud without any audible distortion even with their high 25%+ distortion at 30hz (when outside of a horn). I can get the MCM's for only $60 and that's a lot better than $260 SB acoustics subs. T...
by Krillin
Sun Jan 31, 2021 4:19 pm
Forum: Home Theatre/Stereo/Auto Sound
Topic: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?
Replies: 20
Views: 3009

Re: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?

I'm located in the USA. The W8 appears to be mostly out of stock overseas. With tax, covid shipping delays and shipping cost I'm looking for something closer to home.
by Krillin
Sun Jan 31, 2021 3:26 pm
Forum: Home Theatre/Stereo/Auto Sound
Topic: Tuba 18, David, Table Tuba 8" subwoofers. Best choice?
Replies: 20
Views: 3009

Tuba 18, David, Table Tuba 8" subwoofers. Best choice?

I need an 8" subwoofer that has an Fs, Qts, & Vas of 30 +/- 20%. Everything written here is based on the subwoofer measurements located here: https://www.dibirama.altervista.org/le-prove/sub-woofer.html Three obvious choices are the following 1) Tang Band W8-740C - Fs 29.9, Qts .39, Vas 19....