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Old 21st September 2005, 12:45   #46
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apart from C-quenze they have Flex units also...in this range there are bigger drivers which can be used for subwoofer applications.
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Old 21st September 2005, 12:50   #47
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They are called C-Quence. They were on the www.audiotechnology.dk website earlier... Cant get it to open anymore... I think one of the ranges was called C-Quence Flex.
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Old 21st September 2005, 12:51   #48
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23cm is abuot 9". 4 of these would be a great sub. and would need about the same box as a 15".

Last edited by navin : 21st September 2005 at 12:52.
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Old 21st September 2005, 15:25   #49
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I love this thread. This is a real audio discussion.
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Old 21st September 2005, 15:34   #50
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Quote:
Originally Posted by Autophile
The newer one with so called ring radiator tweeter is even worse.
Also, while the earlier xtype sets were made in Denmark, the new ones are sourced by Alpine from China and are no longer Vifas but look almost the same.... dont sound anything like the old ones though
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Old 21st September 2005, 16:57   #51
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Quote:
Originally Posted by Vivekphadnis
I love this thread. This is a real audio discussion.
enjoy vivek, before the mods redirect all of us to another forum.
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Old 21st September 2005, 20:07   #52
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Navin I was referring to the Flex range where they have bigger drivers ranging from 10" - 15". C-Quenze range is specifically meant and used for midrange / midbass reproduction.

For fast response and kick in bass using multiple small drivers is a better idea.
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Old 22nd September 2005, 13:04   #53
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i'm quite happy with multiple (read as 4) 8-9" woofer per channel sa the really low bass while great when produced makes everything else resonate and that is bad. it is better to have no/less low bass than bad low bass.
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Old 22nd September 2005, 19:03   #54
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Again its all depends on the installation and choice of drivers and car's build quality

Drivers with flat response installed in a inert enclosure will not cause such problems. You have to use damping material as the SPL increases. Does not matter if it is one or more drivers.

Most vibration problems are in 50-80Hz range which are prominent. Low bass is not that much of an issue.

We have 15" Image Dynamics IDQ Subwoofer running in Getz of a 500 Watts RMS amplifier in 1.5cuft sealed enclosure. We have not faced any such problems majorly.
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Old 22nd September 2005, 22:01   #55
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my rear glass (octy) resonates. cant use dynamat on that. isloated the subs on rubber sheet. still did. used smaller subs. lost some bass SPL and extrension (never needed it in real life) but it dont resonate either.
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Old 23rd September 2005, 10:32   #56
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Its probably your boot or the parcel shelf...never come across glass rattling.
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Old 23rd September 2005, 10:37   #57
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Quote:
Originally Posted by navin
my rear glass (octy) resonates. cant use dynamat on that. isloated the subs on rubber sheet. still did. used smaller subs. lost some bass SPL and extrension (never needed it in real life) but it dont resonate either.
Navinji, what Subs, Power and Enclosure?

Also, just in case you overlooked it, sometimes what is precieved as glass resonation is actually the rear wiper vibrating on the glass...
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Old 23rd September 2005, 12:02   #58
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my octy got no wiper and the glass did vibrate when you touch it you can feel the virbation.

i mananged to damp the rear shelf with 1.5mm lead sheet (trunk side) could not do the same to the glass :-( LOL

Subs were 2 12" boxes from Blaupunkt. the amp was my own home brew version putting out about 150-200W rms per channel (4 ohms).

I now use 2 8" tubes tucked into each side. damped the ports with old (clean) socks. front and rear speakers are Alpine driven by an Alpine 540 i think.
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Old 24th September 2005, 20:51   #59
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Quote:
Originally Posted by navin
my octy got no wiper and the glass did vibrate when you touch it you can feel the virbation.

i mananged to damp the rear shelf with 1.5mm lead sheet (trunk side) could not do the same to the glass :-( LOL

Subs were 2 12" boxes from Blaupunkt. the amp was my own home brew version putting out about 150-200W rms per channel (4 ohms).

I now use 2 8" tubes tucked into each side. damped the ports with old (clean) socks. front and rear speakers are Alpine driven by an Alpine 540 i think.
Hi... First off, congrats on your new status.

Re your post... sure, glass does vibrate. But could you hear it? I have not seen this before.
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Old 26th September 2005, 11:39   #60
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i dont think i could hear it per say becuase at the volume of music at which the glass vibrated but when i swtiched to smaller subs the bass sounded better integrated and a bit leaner. of course i lost the really low end and some max SPL capability but I prefer less bass well integrated to more bass that drowns evrything else. bass by itself should not call attention to itself. you should miss it's absence rather than notice it's presence.
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