AnyOne know the model-name of my loudspeaker's ?

lykkedk · 3rd April 2006, 12:00 PM

The loudspeaker, is a Dansih-made by : F3 (now Audiovector).

Anyone know the excact name ?.

I am driving them with a LeachAmp 4.5, which grow's hot, when playing loud.
I was wondering if a Krell-Clone KSA50, was better driving them ???

You can see some picture's at my Amp, if you're interested here
LINK

tool49 · 3rd April 2006, 12:09 PM

Looking at the pictures of your Leach amp, it's obvious to me that it will become hot no matter what load your speakers are. You really need to ventilate these heatsinks where the transistors are if you want it to stay cool. The Krell KSA50 will become just as hot if assembled similarly (or even hotter because of the higher idle bias)

Hope this helps!
Sébastien

lykkedk · 3rd April 2006, 12:15 PM

Yes I know, but maybe the Krell could drive more power ? (I would like too) I would like a 'bit' more power.

Sorry I forgot to mention that.

tool49 · 3rd April 2006, 12:17 PM

Ahh well, that I will leave to those who have built both. I have no clue whatsoever!

Sébastien

lykkedk · 3rd April 2006, 01:01 PM

Anyway, I would still like some iformation about them loudspeaker, if possible !

Tomac · 3rd April 2006, 04:05 PM

bass driver looks like Monacor SPH-212, can you check the sticker on magnet?

AndrewT · 3rd April 2006, 04:23 PM

Hi Lykk,
even leaving the lid off the output stage will probably overheat.

You really need to get those heatsinks oriented the correct way and out in the open air.

Tread carefully with the volume control until this is sorted.

If those speakers are continental then they may be 4ohm. This will make your overheating problem even worse.

lykkedk · 3rd April 2006, 04:53 PM

You mean like this at eg. the back of the cabinet ?

(Very bad drawing)

AndrewT · 3rd April 2006, 05:07 PM

No,
with the fins horizontal you lose about 30% of the cooling capacity.
You need to orient them vertically.
Try cutting them in half. Then four side by side will have more cooling than two big ones side by side and the reduced height will fit the box you have.

OOPs, just had another look and there is not enough room to cut them in half and you then need to relocate the diodes.

Tomac · 3rd April 2006, 05:14 PM

No I think at the back of the magnet of the bass unit. You'll hae to take the driver out to see. Is this
your bass driver?

3rd April 2006, 12:15 PM	#3
lykkedk diyAudio Member Join Date: Dec 2002 Location: Denmark, Fredericia	Yes I know, but maybe the Krell could drive more power ? (I would like too) I would like a 'bit' more power. Sorry I forgot to mention that. __________________ DIYAudio crazy.... LeachAmp, PearlPhono, Pumpkin, F4 DualMono, DDDac, HalfChang Spk., LinuxAudio, Squeezebox substitute, Drek inductorloaded pre-amp.

3rd April 2006, 01:01 PM	#5
lykkedk diyAudio Member Join Date: Dec 2002 Location: Denmark, Fredericia	Anyway, I would still like some iformation about them loudspeaker, if possible ! __________________ DIYAudio crazy.... LeachAmp, PearlPhono, Pumpkin, F4 DualMono, DDDac, HalfChang Spk., LinuxAudio, Squeezebox substitute, Drek inductorloaded pre-amp.

3rd April 2006, 04:23 PM	#7
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi Lykk, even leaving the lid off the output stage will probably overheat. You really need to get those heatsinks oriented the correct way and out in the open air. Tread carefully with the volume control until this is sorted. If those speakers are continental then they may be 4ohm. This will make your overheating problem even worse. __________________ regards Andrew T.

3rd April 2006, 05:07 PM	#9
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	No, with the fins horizontal you lose about 30% of the cooling capacity. You need to orient them vertically. Try cutting them in half. Then four side by side will have more cooling than two big ones side by side and the reduced height will fit the box you have. OOPs, just had another look and there is not enough room to cut them in half and you then need to relocate the diodes. __________________ regards Andrew T.

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3rd April 2006, 12:09 PM	#2
tool49 diyAudio Member Join Date: Apr 2003 Location: Montreal	Looking at the pictures of your Leach amp, it's obvious to me that it will become hot no matter what load your speakers are. You really need to ventilate these heatsinks where the transistors are if you want it to stay cool. The Krell KSA50 will become just as hot if assembled similarly (or even hotter because of the higher idle bias) Hope this helps! Sébastien

3rd April 2006, 12:17 PM	#4
tool49 diyAudio Member Join Date: Apr 2003 Location: Montreal	Ahh well, that I will leave to those who have built both. I have no clue whatsoever! Sébastien

3rd April 2006, 04:05 PM	#6
Tomac diyAudio Member Join Date: Dec 2003 Location: Zagreb	bass driver looks like Monacor SPH-212, can you check the sticker on magnet?

3rd April 2006, 05:14 PM	#10
Tomac diyAudio Member Join Date: Dec 2003 Location: Zagreb	No I think at the back of the magnet of the bass unit. You'll hae to take the driver out to see. Is this your bass driver?

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