2. speakers
  3. 166325-136265

6.5 vs 8 vs 10 woofer

IMHO I think the 8 is the ideal size cone for mid/small sized listening rooms. Even for large size listening rooms. 
The lower mid hz's seem cleaner/clearer. And  there is so little fq's in 905+ of the music we listen to, it seems to me the 8  driver is the most perfect size cone.
A 10 size cone  has the potential to become overwheling, aggressive, attacking when amp gain is pushed just a  tad too much, = Better  volume  control with a  8 vs a 10. 
The 6.5 misses some of that lower bass which a  8 can voice superior. 
After listening to several YT vids with a  10 FR, I had considered going 10, but i think  staying with a  8 avoids regrets. 
I listen at low/mid volume. 

mozartfan

Showing 2 responses by murphythecat

murphythecat
181 posts
 
@Mozartfan
I was with you in the wideband hi-eff thread, but this 10" theory makes little sense. @auxinput gave you very important information. he's right. even a 15" hi-eff are limited in low bass due to the hi-eff design choice in building a hi-eff woofer. so a 95db 15" woofer need a BIG cab to make low bass: like 200L or more.

- no 10" wideband will reach 20khz smoothly. the rising response will be impossible to deal without compensations circuit to smooth that rising response

- a 10 inch wideband still need a light cone and relatively weak magnet= compromising low bass, and Ive heard a couple like the famous 10" vintage philips. they just dont do low bass

if you want a wideband and bass, look at FAST designs (fullrange-assisted-system-desing) at diyaudio. whole following there.

If you want wideband sound and real bass, you need subs. If you dont listen loud, get a 5, 6 " voxativ in a small sealed enclosure and try to make the wideband roll off naturally around 100hz, then integrate dual REL subs

hope this helps

PS: if you want hi-eff and real bass, go the classic way: hi-eff 15" woofer with a 6.5" hi eff mid and hi-eff 1.5" tweeter (seas t35 are 96 db) and go for a 1st order xo.
I’m building right now such a speaker with a Eminence omega pro 15", audax 170mo mid and hivi planar tweeter, 1st order series xo in a 200L cab. This system will be about 96 db efficient.
murphythecat
181 posts
 
@mozartfan,

" Its ridiculous listening to a tiny 1.3 inch dome tweeter trying to gather up a full range orchestra in full power."

tweeters reproduce harmonics mostly and are used over 2khz. listen to your music, turn a EQ on and highpass your orchestra at 2khz. not much energy over 2khz.

no wideband will be as even in the treble as any tweeter. and very few wideband, if any, of the zie your looking at (6 or 8") will reproduce "air" in a even pattern. Most wideband still need a tweeter for the last octave (10khz to 20khz)

its quite ridiculous to think that a wideband is suited to reproduce a orchestra at full power

Enjoy the journey, but everything is a compromise and many ways to get to satisfaction in this hobby

" Dual 6.5’s MM (skip the tweet) is the ideal bass configure for backing up a single FR 6.5 or 8."
why not dual 15", or dual 10’s or dual 8’s.

you clearly are starting to make stuff up as you go on.

More to discover