How would you achieve that?this is just shoddy engineering all together, a customer should not be expected to deal with port resonances because they should have been omitted from the speaker all together by the designer.
How would you achieve that?this is just shoddy engineering all together, a customer should not be expected to deal with port resonances because they should have been omitted from the speaker all together by the designer.
How would you achieve that?
Genelec disagrees, though. Rear ports have some major advantages: reducing resonance and woofer leakage (for 2-ways) audibility by virtue of not being direct sound without reducing the port efficiency with foam stuffing (as Neumann does on the KH120A) and allowing for more placement choice without increasing the baffle height to make space (Neumann's ports are quite space saving, though). You also get a bit more boundary gain when stuck to a wall.Almost all speakers with a focus on music production have front ports so they can be pushed against the wall to minimize SBIR or to raise the SBIR frequency high enough so it can be absorbed.
Wouldn't it actually be +6dB? (3dB from doubling the amplification and another 3dB for doubling the surface area of the transducers)two speakers will give you +3dB loudness for free.
Not all things, as KEF and Genelec proved by refining the coaxial concept to get beyond its original issues and this imaginary "everything is a compromise (of equal magnitude implied)". I'm sorry if you meant it in a more reasonable way (i.e. some things in loudspeaker design are a compromise and/or not fit for every use case), but this phrase sounds like something you could read in Sokal & Bricmont's Fashionable Nonsense.All things in speaker design come with caveats and a absence of free luncheon.
I think it's 6 dB in the bass, where most content is mono.Wouldn't it actually be +6dB? (3dB from doubling the amplification and another 3dB for doubling the surface area of the transducers)
Wouldn't it actually be +6dB? (3dB from doubling the amplification and another 3dB for doubling the surface area of the transducers)
I wish no bookshelf speaker was ported. They all need subwoofers. Porting a small speaker is,IMHO, a hack that adds distortion in exchange for marketing claims of lower frequency extension.I wish the KEF R3 wasn't rear ported, infact i wish no speaker in the world would be rear ported for home cinema purposes.
I wish no bookshelf speaker was ported. They all need subwoofers. Porting a small speaker is,IMHO, a hack that adds distortion in exchange for marketing claims of lower frequency extension.
Oh yeah, got confused somehow.two signals of equal frequency, amplitude and phase add up to +3dB (on sound pressure/Speaker level).
on voltage/analog level it's 6 dB.
As far as i know.
Genelec disagrees, though. Rear ports have some major advantages: reducing resonance and woofer leakage (for 2-ways) audibility by virtue of not being direct sound without reducing the port efficiency with foam stuffing (as Neumann does on the KH120A) and allowing for more placement choice without increasing the baffle height to make space (Neumann's ports are quite space saving, though). You also get a bit more boundary gain when stuck to a wall.
Personally, I think both have their place in 3-way designs.
But porting reduces distortion when everything else (especially extension) is equal, that's the entire point. The problem is the same whether it's sealed or ported: don't try to push extension via EQ too much. The Genelec 8341A/8351B reviews here show extremey good distortion values, and these are arguably "small" ported speakers.I wish no bookshelf speaker was ported. They all need subwoofers. Porting a small speaker is,IMHO, a hack that adds distortion
I wish no bookshelf speaker was ported. They all need subwoofers. Porting a small speaker is,IMHO, a hack that adds distortion in exchange for marketing claims of lower frequency extension.
But porting reduces distortion when everything else (especially extension) is equal, that's the entire point. The problem is the same whether it's sealed or ported: don't try to push extension via EQ too much. The Genelec 8341A/8351B reviews here show extremey good distortion values, and these are arguably "small" ported speakers.
Yes. For $3k each you get a great performing ported speaker. The majority of tested bookshelf speakers with ports resonate causing mid range distortion reducing performance in a critical area of their performance window. A more cost effective solution for $6k would be to get a nice sub and cross the small speakers over and let the sub do the low work.But porting reduces distortion when everything else (especially extension) is equal, that's the entire point. The problem is the same whether it's sealed or ported: don't try to push extension via EQ too much. The Genelec 8341A/8351B reviews here show extremey good distortion values, and these are arguably "small" ported speakers.
How about the aforementioned Kef R3?Yes. For $3k each you get a great performing ported speaker. The majority of tested bookshelf speakers with ports resonate causing mid range distortion reducing performance in a critical area of their performance window. A more cost effective solution for $6k would be to get a nice sub and cross the small speakers over and let the sub do the low work.
The real "cheating" comes from using a 3-way speaker with sealed midrange chamber as example, but the smaller 2-way Genelec and Neumann offerings also show that it can be done with enough R&D. That's basically my position: porting is an extremely useful tool, but not always easy to implement without side effects.I feel like using Genelec speakers as an example is a little unfair because i seriously consider them an outlier. they're the exception not just in the distortion category but pretty much all categories, they're the expensive luncheon brand basically.
Right agreed. Kef r3 is $2k a pair and goes down to 52hz and is very high performing. For that same money you can design a 2.1 setup with a sub and get down to 25hz with great performance and be much happier due to the importance of low bass to preference scores.How about the aforementioned Kef R3?
The real "cheating" comes from using a 3-way speaker with sealed midrange chamber as example, but the smaller 2-way Genelec and Neumann offerings also show that it can be done with enough R&D. That's basically my position: porting is an extremely useful tool, but not always easy to implement without side effects.