James
Lord of the Erg\o/s
Here is a picture of the E-VII pair.
It is a slightly more complicated build than the E-IX.
Ergo E-IX owners' club
- Thread starter James
- Start date
It is a slightly more complicated build than the E-IX.
Steve Gray
Active Member
Beautiful work, James. And thank you for sharing. I suspect mine will be more conventional and boxy looking. Yours are a work of art. And I will also use the CAT378 tweeter with LR4xover. If that tweeter was good enough for the E9.... besides, those SS tweeters are expensive and I already have the Morels!
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Brian
Eating fat, staying slim
Stunning, frankly. I would love to try those.Here is a picture of the E-VII pair.
It is a slightly more complicated build than the E-IX.
James
Lord of the Erg\o/s
They were my tribute to the Sonus Faber Electa Amator II. I could not afford the real thing at the time. Sadly, and very much regrettably, I sold them to make space for other Ergo designs.
Mike Hanson
Trying to understand...
I drove my Ergo IX with Avondale QUDOS/VBE Voyagers, then upgraded to Avondale NCC300 monos. The Ergo IX can be very forward, and the Avondale amps are very engaging, which sometimes seems like a bit too much muchness. 
Today I tried the Neurochrome Modulus-686 that I just finished building. It's a less punchy amp, and seems to balance the Ergo IX quite nicely. We'll see what I think of it after a few days in the saddle.
Today I tried the Neurochrome Modulus-686 that I just finished building. It's a less punchy amp, and seems to balance the Ergo IX quite nicely. We'll see what I think of it after a few days in the saddle.
James
Lord of the Erg\o/s
The -01 variant is close enough to the -00 variant to be a direct drop-in. I never documented the cabinet plans, but you should be able to work out the relative dimensions to make up the 20L of enclosed volume.
James
Lord of the Erg\o/s
I'm surprised you find the E-IX too forward. Did you build the XO yourself, and what value resistor have you used for the tweeter?I drove my Ergo IX with Avondale QUDOS/VBE Voyagers, then upgraded to Avondale NCC300 monos. The Ergo IX can be very forward, and the Avondale amps are very engaging, which sometimes seems like a bit too much muchness.
Today I tried the Neurochrome Modulus-686 that I just finished building. It's a less punchy amp, and seems to balance the Ergo IX quite nicely. We'll see what I think of it after a few days in the saddle.
Yank
Bulbous Also Tapered
Free Space or Wall Proximity?
Mike Hanson
Trying to understand...
It's the near-wall version from Stefan's group buy. As you know, the midrange sizzle of those induces some to transition the crossover to the free space specs.
James
Lord of the Erg\o/s
I can't hear any sizzle with my free space versionIt's the near-wall version from Stefan's group buy. As you know, the midrange sizzle of those induces some to transition the crossover to the free space specs.
Mike Hanson
Trying to understand...
Yeah I know I could change the resistor, and I may do that at some point. I'm the mean time, vocals are a bit forward.I can't hear any sizzle with my free space version
Steve Gray
Active Member
FWIW I also built the free space variants and they sound great to me. Detailed but not too forward. And they are used in quasi free space. But then again, maybe my old ears are imparting a built in level shift at the higher frequencies. I would not be surprised.I can't hear any sizzle with my free space version
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I had some early difficulty with forwardness on the speakers BUT after really running them in they settled and are now absolutely delightful. I did change the resistor during running in but went back to the standard setup and better for it. I have to say the thought of some Ergo E-V11 look attractive. Some drawings would be nice as those cabinets look a bit tricky to guess dimensions.
James, How would the E-VII's cope with close to the wall positioning? Where I would want to position them is in a 5m x 3m room firing down the length and in this room I cannot have the speakers out in free space. I have a 250 Naim with Teddy Pardoe tweaks so I guess enough power for the E-VII's
I was having a look at the Sonus Faber Electra Amator 11 . They appear to have a second drive unit firing backwards presumably as additional bass resonator. That looks like an interesting idea for more bass response out of a small cabinet. No idea how you go about incorporating that into a crossover however.
I was having a look at the Sonus Faber Electra Amator 11 . They appear to have a second drive unit firing backwards presumably as additional bass resonator. That looks like an interesting idea for more bass response out of a small cabinet. No idea how you go about incorporating that into a crossover however.
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James
Lord of the Erg\o/s
I designed the E-VII for free space, so it's likely to be bass heavy close to walls or corners. Free-space doesn't necessarily mean middle of the room. But they should be at least a metre away from any boundary.
The Amator II has an auxiliary bass radiator, which is basically an unpowered woofer tuned with a specific mass to mimic the function of a bass reflex port (but without the disadvantages of chuffing and spurious noise emanating from within the cabinet into the room). The crossover won't affect how ABRs work, but the use of ABRs must be designed around the woofer and intended cabinet volume. In terms of bass response, you *can* get more, but the roll-off below cut-off will be much steeper. I prefer the gentler roll-off of sealed systems, as they tend to complement room gain more evenly.