FWIW, with my serious hat on for a minute, in general terms, Dave's right. Nothing wrong with EBS alignments in themselves (although they tend to be best suited to very low tuned subwoofers as an alternative to a sealed box) but if that's the route taken, it's usually better to avoid peaking at Fb, even if it's below the nominal.
Why not much love for the Eikona II, especially in an MTL38 enclosure with Fb27 achievable? Price of drivers or any issues with alignment etc?
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Plenty of people have used it, so I'm not sure where the 'not much love' comes from. (?)
It's much more expensive of course, so by definition the market is smaller, and I don't think they're quite as interested in selling raw units now they have several complete speakers for the commercial sector.
One general point: Fb alone isn't a guide to quality -it's just the system tuning freqency. In itself, it doesn't tell you anything about alignment, power handling, reactance, harmonic suppression, or any other factors.
It's much more expensive of course, so by definition the market is smaller, and I don't think they're quite as interested in selling raw units now they have several complete speakers for the commercial sector.
One general point: Fb alone isn't a guide to quality -it's just the system tuning freqency. In itself, it doesn't tell you anything about alignment, power handling, reactance, harmonic suppression, or any other factors.
some scary measurements for the Marlow speaker that uses the eikona 2 (I think)....
1.2khz is mentioned as could be a side panel resonance (+5db ?)
https://www.stereophile.com/content...jordan-marlow-loudspeaker-marlow-measurements
1.2khz is mentioned as could be a side panel resonance (+5db ?)
https://www.stereophile.com/content...jordan-marlow-loudspeaker-marlow-measurements
(Marlow loudspeaker with eikona 2 from the stereophile article linked above)
Sibelius ?
I have not seen graphs and the such, only subjective reviews.
I think the "trick" is to get enough to come out the slot to "fill in" baffle step, but I could be wrong.
Otherwise, the response should be close to the mark audio driver.
And yes, the jordan drivers are pricy to play with.......
I have not seen graphs and the such, only subjective reviews.
I think the "trick" is to get enough to come out the slot to "fill in" baffle step, but I could be wrong.
Otherwise, the response should be close to the mark audio driver.
And yes, the jordan drivers are pricy to play with.......
I'm a bit curious about those who have listened to both jordan, eikona and the best Mark audio drivers.
How do they stack up against each other?
How do they stack up against each other?
acko,
My understanding from the posts from Scott and Dave over the years is:
Also some folks can use notch filters judiciously to reduce some of the peaks.
My understanding from the posts from Scott and Dave over the years is:
- The cabinet design can help to boost the lower frequencies within a particular bandwidth
- Beyond that bandwidth the speaker diver FR characteristics will dominate
- Even though a full-range/wide band speaker can have troughs/peaks depending on placement you can still make it acceptable / pleasurable to the listener; closer placement to the wall or a corner typically tends to boost the low frequency output.
Also some folks can use notch filters judiciously to reduce some of the peaks.
As Chris suggests -the search facility should bring up a few of those train-wrecks. 😉
The Marlowe's response is pretty much as you'd expect for a sub-compact bookshelf with no filtering; the peaking in the ~3 octaves from 350Hz is what you'll usually see (whether it's a single-driver based design or a multiway before [and sometimes after 😉 ] filtering). You end up with a more or less projective response in that region similar to, say, a Yamaha NS10. That's why I did a couple of LS series plans for MA with an optional parallel EQ that's well worth having (for that particular compact box) as you can can tailor the midband response to preference by adjusting the resistor value.
The Marlowe's response is pretty much as you'd expect for a sub-compact bookshelf with no filtering; the peaking in the ~3 octaves from 350Hz is what you'll usually see (whether it's a single-driver based design or a multiway before [and sometimes after 😉 ] filtering). You end up with a more or less projective response in that region similar to, say, a Yamaha NS10. That's why I did a couple of LS series plans for MA with an optional parallel EQ that's well worth having (for that particular compact box) as you can can tailor the midband response to preference by adjusting the resistor value.
Well, you'd expect there to be broad similarities, unless it was running a different drive unit. 😉 The main differences, as you can see, are in the LF and lower midband where box output & diffraction / baffle loading have the greatest influence.
The Sota 11 and Sota 5 drive units we used for the commercial models linked above were in the one case based on an existing MA unit & in the latter formed the basis for one. There are a few, if you look around: Lindemann have one used in a 2-way (you can see it on 6moons at the moment) and there are plenty of others -Eist used one (albeit in an unacknowledged FH3 they badly spoiled by sawing half the horn off). Mon have one. And there are various other small-scale / craft builders who use, or have used, them regularly.
The Sota 11 and Sota 5 drive units we used for the commercial models linked above were in the one case based on an existing MA unit & in the latter formed the basis for one. There are a few, if you look around: Lindemann have one used in a 2-way (you can see it on 6moons at the moment) and there are plenty of others -Eist used one (albeit in an unacknowledged FH3 they badly spoiled by sawing half the horn off). Mon have one. And there are various other small-scale / craft builders who use, or have used, them regularly.
Somewhere there is the picture of all 3 together at teh diyFEST shootout. Eilona in Hawking Memorial Obelisk, A11ms in Seastack, A10.3eN in Pensil.
All 3 were auditioned together at the last VI diyFEST.
Eikona cam in last. A11ms stood out in most ways, A10.3eN provided the best 3D image/soundstage. Chris took Seastack and Pensil home, listened for a long time, kept the Pensils.
Chris was worried that the shallow depth of the HMO was hurting the Eikona, but hat wouldnot explain the top which i found had the same “somewhat painful” top end in the same way as the JX92s, and to a bit less extent the A10.1.
HMO cabinets are free for pickup, suggest adding a supraBaflfe, fairly easily adpated to A10.3 (& probably A11ms or MAOP 11), Over $400 of bits in the box plus Chris’ labour.
dave
All 3 were auditioned together at the last VI diyFEST.
Eikona cam in last. A11ms stood out in most ways, A10.3eN provided the best 3D image/soundstage. Chris took Seastack and Pensil home, listened for a long time, kept the Pensils.
Chris was worried that the shallow depth of the HMO was hurting the Eikona, but hat wouldnot explain the top which i found had the same “somewhat painful” top end in the same way as the JX92s, and to a bit less extent the A10.1.
HMO cabinets are free for pickup, suggest adding a supraBaflfe, fairly easily adpated to A10.3 (& probably A11ms or MAOP 11), Over $400 of bits in the box plus Chris’ labour.
dave
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