15W or 18W Revelator in a small room?

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#42
markbakk said:
Huh? There is a 15W4531G00…
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But the 4531 is not be well suited for sealed while 8530 in a sealed box is a thing of beauty. The 4531, even when vented, will not sound any better or have a lower f3 than the 15W/8530K-01. I am totally sold on that driver. IMHO, you can do no better in a 15 CM speaker. And you get the bonus of a tight low end that rolls off at an easy 12 db/Octave. 15W/8530K-01is a no brainer as far as I am concerned. If I ever build another small monitor it will use that driver as well.
 
#45
Rundalf said:
Hi!
I would like to build a (small) 2-Way-Speaker from a proven Design.
I choose the Revelator Woofer because I would like to listen a bit more an the "beautiful side" - and prefare actually Classical Music.
I only got a small room 3,5 x 4,5m and its not a dedicated listening room 🙁
Listening distance is small 1m or 2,2m
The Speaks will stand right in front of the backing wall.

My question(s):
What size of woofer should I choose: W15 oder W18?
(I would prefare w15 because I would expect it has enough bass for me but delivers a finer midrange)
Which are your favorate designs for the SS woofer?
(I live in Deutschland - the American Designs, for example from Meniscus are complicated/expenive to order for me)

Thanks and bye
Rundalf
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CARRERA .... This IS your perfect solution. These are amazing 2 way speakers
 
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#46
audiosteve said:
But the 4531 is not be well suited for sealed while 8530 in a sealed box is a thing of beauty. The 4531, even when vented, will not sound any better or have a lower f3 than the 15W/8530K-01. I am totally sold on that driver. IMHO, you can do no better in a 15 CM speaker. And you get the bonus of a tight low end that rolls off at an easy 12 db/Octave. 15W/8530K-01is a no brainer as far as I am concerned. If I ever build another small monitor it will use that driver as well.
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Low f3 is not something to aim for with a 5,5”. And the differences aren’t that big, I think. But I only reacted on Wolf’s statement about the nonexistence of a 4 Ohm 15cm revelator.
 
#50
markbakk said:
Low f3 is not something to aim for with a 5,5”. And the differences aren’t that big, I think. But I only reacted on Wolf’s statement about the nonexistence of a 4 Ohm 15cm revelator.
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Only if you will use a sub. So I must disagree. f3 and rolloff, i.e, 12 vs 24 db rate, together with room gain and placement, define the low end response of the system. The low end response of the the sealed two ways I built with the 15W/8530K-01 is so good I never hooked up my subwoofer with them. They don't need it for most music. They have an f3 around 53 Hz and they replaced speakers that had an f3 about 65 Hz. The difference in low end sound quality between these two speakers is like the difference between night and day. I can never believe that low f3 is not something to aim at when my own ears tell me that it is a very important factor as long as the speaker can produce the f3 at the desired level in the chosen space properly damped without excessive excursion and distortion. In my case that was not a problem. f3 matters.
 
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#53
Sealed at a max level of 89dB, 40Hz, 1m. Or about 47 phon. That translates to about the same SPL at normal listening distance and room gain involved. I don't state it wouldn't suffice, but there are limitations with 5" woofers in closed boxes.
 
#54
wolf_teeth said:
The 15W has long had the "best bass in 15 ltrs" badge. Like paper or plastic though, sealed or ported is a preference, and lends to the K01 or K00 respectively. The K00 yields an F3 around 35-40Hz ported in the same 15 ltr volume before room gain.
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yep my k00 goes down a lot ,but Two is beTTer then ones http://www.troelsgravesen.dk/Ellam-dappo.htm
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#59
The 15w is legendary for a reason. Most speaker builders feel like it outperforms the larger 7-inch Revelator in the critical mid-range by a literal and discernible difference. Many people have considered it the gem of the entire Revelator line, and a few people have written that it may be the best product Scanspeak has ever put out. When you take it and combine it with the OWI, and do it in a really really well-engineered way, the results are very close to state-of-the-art for a two-way. You would have to spend a good bit more money to get minimially better sound then you can get with the Carreras. I own quite a few really nice and very expensive DIY speakers, and the Carreras hang with them for what they're intended to do. They also will fill a room of medium-sized with wonderful sound without needing a subwoofer in my opinion. I've had more than one person ask me what sub I am using with the Carreras. Only to answer there is no sub connected.
 
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#60
You could try again the Neumann kh90 with the trebles recess button. Then investigate time in the dsp to tune to your likings later.
On a diy side, you certainly will be not disapointed by a SS Revelator. But reading you I would look also a Peereless nomex/paper for maybe something more warmer, easy listening ? But the low end of those Revelators seems hard to beat.
Never forget that diy can be costly for a first project...tools, try and errors. Better to use a ready made box like Goran from Audioexcite.
The inwall is a great idea, a loudspeaker always suffers from a bad location in the room. The inwall room design solves this for you.
 
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