Sony STR-DN1040 with Dynaudio 4 ohm speakers - AVS Forum
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post #1 of 10 Old 10-09-2013, 05:09 PM - Thread Starter
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I just purchased Dynaudio's Focus line of speakers, a pair of 160 and a center 210 C rated at:

Focus 160 (Pair)
Sensitive            86dB
IEC Power Handling    >200 W
Impedance            4 Ohms
Frequency Response    40 Hz-25 kHz +- 3dB
 
Focus 210 C
Sensitive            88dB
IEC Power Handling    >250 W
Impedance            4 Ohms
Frequency Response    40 Hz-25 kHz +- 3dB

 

I hooked them up to a Sony STR-DN1040 receiver which is rated for 6-16 ohms. I choose this based on several review site high recommendation and the idea that speakers are more important then the comments they are hooked up to...

 

Receiver STR-DN1040
Amplifier section
Minimum RMS Output Power1)
    (6 ohms, 20 Hz – 20 kHz, THD 0.09%)
        100 W + 100 W
Stereo Mode Output Power1)
    (6 ohms, 1 kHz, THD 1%)
        120 W + 120 W
Surround Mode Output Power1) 2)
    (6 ohms, 1 kHz, THD 0.9%)
        165 W per channel

 

Now, Ive read that people do hook up 4 ohm speakers to 6 or even 8 ohm receivers, but am I not maximizing the potential of these speakers with this receiver by doing so? Should I go for a more expensive receiver? I do like the features of the receiver I currently have (integrated airplay and DLNA support being the most important). Ive also been looking at Denon's X3000.

 

The sales guy who sold me the speakers wanted me to go with a dedicated amp and DAC, but I also want to eventually add surround left and right speakers which I think makes things complicated for a audio purist route. 

 

Im actually very happy with the sound Im getting right now but, past a certain point in volume though things get a little less perfect. I would definitely enjoy more clear power but dont know how often I would or even could use it (neighbors).

 

Any advice is greatly appreciated....

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post #2 of 10 Old 10-09-2013, 07:07 PM
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First decide on how often you would want to go to that higher volume, and if a rare event, simply enjoy what you'v'e got. smile.gif

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post #3 of 10 Old 10-10-2013, 09:44 AM - Thread Starter
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The speakers are rated at 4 ohms and over 200 watts. Its not necessary to get closer to that rating? It wont damage the speakers to feed them with less power?

 

Ive been reading that a lot of people are very critical of Sony's receivers. Would another manufacturer be better in terms of audio performs?

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post #4 of 10 Old 10-10-2013, 03:25 PM
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Quote:
Originally Posted by Snick2040 View Post

The speakers are rated at 4 ohms and over 200 watts. Its not necessary to get closer to that rating? It wont damage the speakers to feed them with less power?


Less power can be dangerous to to your amp clipping causing distortion. Also the Sony is not certified for 4ohm speakers and might overheat and shut down or worse if the protection doesn't kick in, or it might handle 4 ohms just fine.

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post #5 of 10 Old 10-10-2013, 05:20 PM
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I would get better amplification for those nice Dynaudio speakers.

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post #6 of 10 Old 10-10-2013, 05:35 PM - Thread Starter
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How to accomplish that??? Would a receiver with more watts be enough? The Denon x3000 has similar features to the DN1040 but with additional wattage. Or would I have have to get a dedicated amp to really accomplish this?

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post #7 of 10 Old 10-10-2013, 05:50 PM
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I would get a receiver with pre-outs, that way you can always add an external amp for the front 3 down the road should the such an occasion present itself.
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post #8 of 10 Old 10-10-2013, 05:55 PM - Thread Starter
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Yeah I was think that would be the best way to go. Will a receiver be able to accommodate the 3 front channels on an external amp and the the surround and rear channels operating on the receiver built-in amp?

 

Do they make 3 channel amps?

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post #9 of 10 Old 10-10-2013, 06:44 PM
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I have an Emotiva XPA-3 with a denon 3311 and it has worked great so far, no complaints. The receiver runs the surrounds and wides. Im not saying you need an amp but hey you never know, im an audioholic and that's where I spend my money.

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post #10 of 10 Old 10-28-2013, 08:59 AM
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I have the same front 3 speakers you have and I use DM 2/6s as my surrounds. I have a naim nait XS-2 integrated amp that is used for all music playback from either cd or laptop. I use the XS-2 as a power amp that I have connected via my integra 40.2 l/r preouts to the XS's home theater bypass input. That way I give the 160s better power and can keep my 2-ch seperate from movies and tv. The integra which is basically an onkyo 700 series avr powers the center and surrounds. I'll eventually get an outlaw mini mono for the center but that's down the line.

I used to use a sony receiver in the same line as yours with my excite setup but it was always running hot so I bought the integra. There was a noticeable step up from the Sony with the integra. I'd suggest an onkyo 800 series or marantz 6000 series personally.

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