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RE: Steve, what is it about the

lindsayt wrote:
The EV Sentry III bass driver has enough linear travel to play at 116 dbs at 40 hz without getting near hitting the limits of the cone suspension. They do not have rubber surrounds. They have foam surrounds. The magnet is not small for a 15" driver. You'd need to put them next to other 15" drivers to see that. Apart from that, everything in your post was correct.

This is what an AVI bass driver looks like.

 

 This is an EV Sentry III bass driver looks like.

 

The pictures speak for themselves really.

Hi-Fi - Epiphany Acoustics EHP-02Di > AVI DM5

Head-Fi - Epiphany Acoustics EHP-O2Di > Sennheisser HD700

Portable - Sony NWZ-A847 > Westone UM3x

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RE: Going active ... ?

Agreed. Both discount specials!

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RE: Steve, what is it about the

steve_1979 wrote:

lindsayt wrote:
The EV Sentry III bass driver has enough linear travel to play at 116 dbs at 40 hz without getting near hitting the limits of the cone suspension. They do not have rubber surrounds. They have foam surrounds. The magnet is not small for a 15" driver. You'd need to put them next to other 15" drivers to see that. Apart from that, everything in your post was correct.

This is what an AVI bass driver looks like.

 

 This is an EV Sentry III bass driver looks like.

 

The pictures speak for themselves really.

Steve, you seem to be linking the AVI sub bass driver, rather than the one from the ADM9s....... A subwoofer driver that only has to to up to 100Hz really has very different design parameters compared to even a 15"+ Mid Bass, such as the one in the EV's.

And as previously mentioned, there is far more to a drivers performance other than just having a big magnet and xmax, unless you are a car audio enthusiast....

Michell Gyrodec SE / RB300 / 2M Blue | Sony DVP-S9000ES | Bryston B60 | Rega R9

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RE: Going active ... ?

As a comparison:

AVI ADM9 6"

Fostex FF225K (8") and Veravox 5S (5")

ATC 5"

What conclusion would YOU take from those three photos?

Michell Gyrodec SE / RB300 / 2M Blue | Sony DVP-S9000ES | Bryston B60 | Rega R9

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RE: Going active ... ?

AEJim wrote:

davedotco wrote:

So do you make incremental improvements and keep quiet or make a 'song and dance' about it? I've heard pretty convincing arguments either way.

This is a really tricky area - we sometimes make incremental improvements to ranges and usually keep them quiet, sometimes it's due to availability of parts (where we swap in something new, always a "better" component where possible to avoid any potential issues) or sometimes we just decide that we can improve something for the next batch as a running update, usually based on dealer/distributor feedback or indeed our own listening tests compared to newer projects.

The problem arises when you inform distributors/dealers as a matter of course and for spare parts, word then gets out and the calls begin... "I've heard you've upgraded your *insert model* speakers, do I have the upgrade in mine? If not I'd like the upgrade, how can I arrange this, do you pick up the speakers from me?" etc etc. After dozens of these calls from now irate customers (that were happy to buy the speakers as they originally were) you then regret ever attempting to improve the product in the first place and wonder why you bother. Should just save the upgrade for an "i"/"SE"/"MkII" of said product.

If you announced the upgrade, bumped the retail price up a small percentage and offered a retro-fit service for a set fee it would probably save the hassle, but then you often make more than one change on longer running ranges so it becomes a bit tedious for everyone when you keep announcing these things and you lose credibility for making an "inferior" product in the first place...  :doh:

Hear, hear!

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RE: Going active ... ?

drummerman wrote:

John Duncan wrote:

davedotco wrote:

John Duncan wrote:

davedotco wrote:

I guess this makes Ash a bit of a fiddler then, you can tell him........ :silenced:

Companies should always strive for continuous improvement.

If they can do so without talking EDITED, even better.

So do you make incremental improvements and keep quiet or make a 'song and dance' about it? I've heard pretty convincing arguments either way.

It depends whether any particular company's marketing approach involves claims that new models have more bass when the old ones already had plenty (and music doesn't contain bass anyway), that particular components all sound the same (until they find one that doesn't), that a particular crossover topology booms while theirs doesn't (except their new model which has 'overshoot' to provide more bass - in a good way, of course - and actually it's not crossover which causes this sonic signature but cheap driver technology), that the entire hifi industry has no engineers (except them) and that everybody *else* uses hyperbole and lies to promote their products while they are cut-me-own-throat-honest-as-the-day-is-long-guv.

Fair play JD, I too don't like hyperbole, no matter where it is coming from but that still leaves a product which seems very, very good value for money as I am at the moment try to figure out.

Each of the amplifiers (there are two, well, actually four, two in each speaker) are substantial creations. The boxes look fine and well made, the drivers are good quality and a digital hub of sorts/pre-amplifier and remote is included for the £1.3k price.

I never questioned the value of the 9's (but often spoke out against the way of marketing the company uses even though I very much liked the co-owner when I met him. He really comes over completely different than just purely 'on paper'.)

Never mind. I make a decision soon. My 8vs2 (cyrus) with the planned PSX-R and matching player and a pair of larger standmounts than my Ushers, I was thinking Quad12L2 or perhaps 21L2 would take the overall system cost past a pair of ADM9RS's with 'future' upgrades such as an additional PSX-R potentially adding.

I've always maintained that the sweet spot at the time was the 8vs2 plus PSX-r. After that it just got to expensive and there are better integrated amplifiers availabe. My cyrus is not the latest generation so that may have changed but as I can't afford the latest 8 version, or a pre-power etc that's what I got.

I'm also hankering after something more simple, more aestethically pleasing if possible though I do like the cyrus build/looks.

In any case I still use my Sony receiver in the main system. Simply superb imo.

We'll see.

regards

I did all this myself, DM, before I came upon AVi; so it is genuinely interesting to find someone going the other way. First I bought the the Cyrus CD6, then upwards and onwards for three years, ending up with x2 Mono X's, a CD8 SE, a PreVs2 and x4 PSX-R's. And that's before the bloody speakers and all the bi-wiring cable nonsense (Genesis Silver Spiral, since you ask). I wouldn't do it again, barring a lottery win and a lot of free time to tinker.

Knock yourself out, whichever way you go!

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RE: Going active ... ?

hoopsontoast wrote:

As a comparison:

AVI ADM9 6"

Fostex FF225K (8") and Veravox 5S (5")

ATC 5"

What conclusion would YOU take from those three photos?

I have a small pen1s?

Actually no, that's a different forum...

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RE: Steve, what is it about the

hoopsontoast wrote:

Steve, you seem to be linking the AVI sub bass driver, rather than the one from the ADM9s

That's right. There's already a picture of the ADM9 6.5" mid/bass driver posted a few pages back.

 

The picture above is their 10" subwoofer driver which is a custom design specially built for AVI by Sinar Baja. It weighs a bloody ton and everything about the build just oozes quality. Unlike many subwoofers it's sounds very tight and musical with no boominess at all. It integrates perfectly with the ADM9's and has no noticeable crossover or directionality that many subwoofers suffer from when used in a 2.1 system.

Hi-Fi - Epiphany Acoustics EHP-02Di > AVI DM5

Head-Fi - Epiphany Acoustics EHP-O2Di > Sennheisser HD700

Portable - Sony NWZ-A847 > Westone UM3x

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RE: Steve, what is it about the

steve_1979 wrote:

hoopsontoast wrote:

Steve, you seem to be linking the AVI sub bass driver, rather than the one from the ADM9s

That's right. There's already a picture of the ADM9 6.5" mid/bass driver posted a few pages back.

 

The picture above is their 10" subwoofer driver which is a custom design specially built for AVI by Sinar Baja. It weighs a bloody ton and everything about the build just oozes quality. Unlike many subwoofers it's sounds very tight and musical with no boominess at all. It integrates perfectly with the ADM9's and has no noticeable crossover or directionality that many subwoofers suffer from when used in a 2.1 system.

Hmmm, does that nice heavy cast frame look familliar...

Its an OEM design, as used by a LOT of people, including Eminence no less, probably the largest driver manufacturer in the world. That frame design comes in 10, 12 and 15" flavours IIRC.

 

Michell Gyrodec SE / RB300 / 2M Blue | Sony DVP-S9000ES | Bryston B60 | Rega R9

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RE: Going active ... ?

Obviously ATC.

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RE: Going active ... ? RE: Going active ... ?

hoopsontoast wrote:

Fostex FF225K (8") and Veravox 5S (5")

Cheap low quality driver with a pressed steel basket.

 

 

hoopsontoast wrote:

ATC 5"

That's more like it. That looks like a good quality piece of kit.

 

 

John Duncan wrote:

I have a small pen1s

:hand: Whoh there boy. That's not the sort of thing you should be admitting on a public forum. Especially to a bunch of immature audiophiles. We'll be misquoting that post for months now. :grin:

Hi-Fi - Epiphany Acoustics EHP-02Di > AVI DM5

Head-Fi - Epiphany Acoustics EHP-O2Di > Sennheisser HD700

Portable - Sony NWZ-A847 > Westone UM3x

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RE: Steve, what is it about the

hoopsontoast wrote:

Hmmm, does that nice heavy cast frame look familliar...

That looks nothing like the subwoofer driver that AVI uses. Clicky

 

hoopsontoast wrote:

Its an OEM design, as used by a LOT of people, including Eminence no less, probably the largest driver manufacturer in the world. That frame design comes in 10, 12 and 15" flavours IIRC.

OEM?

Could you provide a link to a web page where it's possible to buy the 10" driver that AVI uses?

Hi-Fi - Epiphany Acoustics EHP-02Di > AVI DM5

Head-Fi - Epiphany Acoustics EHP-O2Di > Sennheisser HD700

Portable - Sony NWZ-A847 > Westone UM3x

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Well this does seem to be the

Well this does seem to be the tenet of the thread...

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RE: Going active ... ?

John Duncan wrote:

I have a small pen1s

Hur hur. Blum 3

Hi-Fi - Epiphany Acoustics EHP-02Di > AVI DM5

Head-Fi - Epiphany Acoustics EHP-O2Di > Sennheisser HD700

Portable - Sony NWZ-A847 > Westone UM3x

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RE: Steve, what is it about the

steve_1979 wrote:

hoopsontoast wrote:

Hmmm, does that nice heavy cast frame look familliar...

That looks nothing like the driver that AVI uses. Clicky

 

hoopsontoast wrote:

Its an OEM design, as used by a LOT of people, including Eminence no less, probably the largest driver manufacturer in the world. That frame design comes in 10, 12 and 15" flavours IIRC.

OEM?

Could provide a link to a web page where it's possible to buy the 10" driver that AVI uses?

He's talking about the basket. That is an Eminence driver (available for about $140).

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