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Thread: Denon 3805 and 4 OHM Speakers???Help |
    
New member Username: Djomla
Post Number: 1
Registered: Feb-05
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| Posted on Wednesday, February 16, 2005 - 05:43 pm: |
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I'm considering to purchase denon 3805 but unfortunately denon does not support 4 ohm speakers.I have dynaudio contour 1.8mkII @ 4ohm. Does anyone have similar setup or using denon 3805 with front 4 ohm speakers. Thanks. |
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Gold Member Username: Project6
Post Number: 2750
Registered: Dec-03
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| Posted on Thursday, February 17, 2005 - 07:54 am: |
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Mladjen,
I believe the Denon 3805 can handle a 4ohm load. |
Bronze Member Username: Thinker311
Post Number: 26
Registered: Feb-05
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| Posted on Thursday, February 17, 2005 - 08:11 am: |
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Now please understand, i am in no way saying that i know more than a gold member...im still trying to learn.
But the 3805 says it has 8 ohms, so wouldnt matching that with a speaker with half the ohms be a bad idea?
Or just dont do something like have an 8 ohm reciever and 2 ohm speakers. Like saying 4 is pushing it, but ur still ok.
3805 pdf is below
http://www.usa.denon.com/catalog/pdfs/AVR-3805%20Final.pdf
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Silver Member Username: Frank_abela
Berkshire
UK
Post Number: 354
Registered: Sep-04
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| Posted on Thursday, February 17, 2005 - 11:21 am: |
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I've had a look at that PDF. If you look at the specification sheet for the power amp section, you'll see that the channels are rated at 120w each into 8 ohms 20hz-20khz. They're also rated at 160W into 6 ohms 1khz. At first, this looks pretty good, but it concerns me that they only quote the 160W at 1khz! It's far more difficult to maintain the power level across the full frequency range of 20hz - 20khz. This is why you need to be very careful with the numbers you're quoted. To me, the numbers indicate that the 3805 has some headroom, but not a huge amount. I think they wanted to get the "7-channels driven at the same time" as constant as possible and this affected the headroom on a per-channel basis. Therefore, I would try to stick to 8-ohm speakers if possible.
Regards,
Frank. |
Silver Member Username: Frank_abela
Berkshire
UK
Post Number: 355
Registered: Sep-04
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| Posted on Thursday, February 17, 2005 - 11:22 am: |
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Mljaden
I know the Dynaudios well. They're quite difficult to drive, dipping to below 2 ohms in places, so I would not recommend the 3805. For similar money (here in the UK) I would more readily recommend the Arcam AVR250, even though it has less power on paper.
Regards,
Frank. |
Silver Member Username: Frank_abela
Berkshire
UK
Post Number: 356
Registered: Sep-04
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| Posted on Thursday, February 17, 2005 - 11:23 am: |
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PS - Sorry for spelling your name incorrectly!
Regards,
Frank. |
New member Username: Djomla
Post Number: 2
Registered: Feb-05
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| Posted on Thursday, February 17, 2005 - 01:57 pm: |
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Hi there, Thanks for your replays. Unfortunately I will have to search for another receiver. Being from Serbia I don't have much choice. There is Denon 3805 (1290 EUR) and Rotel 1067 (2800 EUR) Thanks. Mladjen |
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