audio nirvana super 8 cast frame in lowther 2.8 cabinet

scbf81 · 28th August 2009, 09:49 AM

hi all, im a newbie,
and i have a problem with my cabinets: in my opinion it sounds nice but its poor in bass emission, i have a tube el34e amp, i tried to change positions , type of insulation but ...
i placed the insulation only in the superior half of cabinet, its the right mode?
thanks for info.

GM · 28th August 2009, 05:40 PM

Greets!

If your driver's specs are as far off as some other AN products as listed in this thread, then the cabs are much too small for good bass reproduction and your high output impedance amp (compared to a solid state's typically milli-ohm impedance) just aggravates the situation since it makes it somewhat acoustically smaller due to increasing the driver's effective Qts.

If by 'superior', you mean the upper half of the cab from the top down to somewhere below the driver and above the vent, then you did it correctly, i.e. there normally shouldn't be any damping down around/below the vent unless vent damping itself is required to eliminate any audible 'one note' bass peaking around/at the cab's box tuning (Fb).

GM

mavallarino · 9th March 2010, 07:15 AM

hello scbf81,

what type of bass are you looking for and what type of music do you listen to? How is your room?

I have experimented with the 8" in the AN 2.8 box for much time now (almost 5 years) and have tuned it pretty well.

In mine there is bass with all types of amplification, EL84 PP, EL84 SE, 300B SE, Chipamp... no problem but the recommended 2.8 enclosure is not ideal in my circumstance.

Cheers,
MV

willswing · 9th March 2010, 12:24 PM

I can tell you, that my An super 8 cf's...took at least closer to 100 hour before they started to make some bass. I have them in monitor cabinets....smaller than the 2.8's.

edjosh23 · 9th March 2010, 11:20 PM

My Super 8 CF's took some time to break in. I would say that the bass started coming in rather quickly, but it took at least 200 hours for the highs to really settle in. Currently mine are a little bass shy, but I blame that on my amp. I tried them with a Miniwatt and using my other amp (Nuforce Icon) and there was much more bass.

Josh

28th August 2009, 09:49 AM	#1
scbf81 diyAudio Member Join Date: Aug 2009 Location: Ancona	audio nirvana super 8 cast frame in lowther 2.8 cabinet hi all, im a newbie, and i have a problem with my cabinets: in my opinion it sounds nice but its poor in bass emission, i have a tube el34e amp, i tried to change positions , type of insulation but ... i placed the insulation only in the superior half of cabinet, its the right mode? thanks for info.

28th August 2009, 05:40 PM	#2
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Greets! If your driver's specs are as far off as some other AN products as listed in this thread, then the cabs are much too small for good bass reproduction and your high output impedance amp (compared to a solid state's typically milli-ohm impedance) just aggravates the situation since it makes it somewhat acoustically smaller due to increasing the driver's effective Qts. If by 'superior', you mean the upper half of the cab from the top down to somewhere below the driver and above the vent, then you did it correctly, i.e. there normally shouldn't be any damping down around/below the vent unless vent damping itself is required to eliminate any audible 'one note' bass peaking around/at the cab's box tuning (Fb). GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

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9th March 2010, 07:15 AM	#3
mavallarino diyAudio Member Join Date: Oct 2006	hello scbf81, what type of bass are you looking for and what type of music do you listen to? How is your room? I have experimented with the 8" in the AN 2.8 box for much time now (almost 5 years) and have tuned it pretty well. In mine there is bass with all types of amplification, EL84 PP, EL84 SE, 300B SE, Chipamp... no problem but the recommended 2.8 enclosure is not ideal in my circumstance. Cheers, MV

9th March 2010, 12:24 PM	#4
willswing diyAudio Member Join Date: Nov 2009	I can tell you, that my An super 8 cf's...took at least closer to 100 hour before they started to make some bass. I have them in monitor cabinets....smaller than the 2.8's.

9th March 2010, 11:20 PM	#5
edjosh23 diyAudio Member Join Date: Oct 2004 Location: Raleigh/Atlanta	My Super 8 CF's took some time to break in. I would say that the bass started coming in rather quickly, but it took at least 200 hours for the highs to really settle in. Currently mine are a little bass shy, but I blame that on my amp. I tried them with a Miniwatt and using my other amp (Nuforce Icon) and there was much more bass. Josh

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