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  #91  
Old 06-01-2018, 07:51 AM
Art Vandelay Art Vandelay is offline
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Here are the fr and impedance charts from the Australian Hi-Fi review from last year.


One of the flattest responses I've seen.
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File Type: jpg 800d3-1.jpg (83.6 KB, 159 views)
File Type: jpg 800d3-2.JPG (52.6 KB, 138 views)
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  #92  
Old 06-01-2018, 07:59 AM
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Front Fire Bassreflex-Port?
The 800D3 has one? Hmmm...
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  #93  
Old 06-01-2018, 12:07 PM
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Quote:
Originally Posted by RebelMan View Post
For the technically unaware it bears repeating... "the size of the room matters little". Put another way... "ANY size speaker can work in ANY size room". So if you want a pair of 800D3 and can afford them and if the foot print is not a concern for you then GET THEM! For a another take on the matter view the first five minutes of this video... Small room, big hi-fi system... Could it work?



Let me clarify. NO bass trap on the planet can correct for low bass much less sub bass response. NONE (that you could live with), which is really what we are talking about here when comparing the 802 to the 800. The coefficient of absorption of carpeting varies wildly between 1% and 50% (in some cases) with low frequencies (less that 250Hz). Factors that impact NRC include pile, density, fiber type and construction plus the pad backing the carpet can have a huge impact too as well as the surface beneath. Given that the floor is one of the largest surface areas in a room it is also one of the biggest contibutors of modal frequency disturbances.

Unfortunately, a typical room's floor is not designed to play well with low bass output. Then again Joey is not a typical consumer of HiFi either. So if an investment in a pair of 800D3 is going to be made then so should an investment on making the floor behave nicely (like removing/replacing the carpet, etc.). While I respect Joey's decision not to go down that path the conclusions for making that decision are in error. The problems he had are NOT do to the size of the room NOR are they do to the size of the 800D3. ALL ROOMS BIG OR SMALL HAVE ROOM MODES that must be delt with to achieve optimal performance.
The last sentence in this post is the KEY.
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  #94  
Old 06-01-2018, 10:47 PM
Art Vandelay Art Vandelay is offline
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The measurements from AV Hub shed some light on the subjective differences between the 802D3 and the 800D3.

I've attached measurements of both (800D3 on left), revealing that the 800D3 is tuned very differently, and is actually more similar to the 800D2 in the bass, with the port tuning around 26Hz. OTOH, the 802D3 alignment is lower Q, and the port is tuned lower too, meaning that there's much less energy in the 30-50Hz region.

Measurements suggest that the 802D3 is designed to make use of boundary reinforcement, whereas the 800D3 will work best in a larger room where it's also further away from room boundaries.
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  #95  
Old 10-16-2018, 08:10 PM
meltemi meltemi is offline
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Quote:
Originally Posted by meltemi View Post
My B&W 800D2 do work in a small room (16,4' x 13,6' x 8.39' / 223ft² = 5 x 4.15 x 2.56m / 20.75m²). With correct placement and electronic room correction.
I do not expect any problems when upgrading to the B&W 800D3.
My B&W 800D3 have arrived and are currently burning in.

Measured with Accuphase DG-58, the left speaker shows peaks up to +5dB in a total of nine 1/6th octave bands and some dips down to -10dB.
The right speaker, which stands closer to the walls, shows peaks up to + 8 dB in a total of seven 1/6th octave bands and some dips down to -7dB.

Nothing unusual and definitely no overwhelming low frequencies here.

Martin
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  #96  
Old 11-04-2019, 11:16 PM
lecson_lover lecson_lover is offline
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I have been burning in my 800 D3s and find that it’s the top end that has been loosening up. I’d have expected it to be the big drivers but actually the zing and fizz of the top end have taken a while to come through.
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  #97  
Old 11-13-2019, 06:29 PM
Wised Wised is offline
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The 800 is overkill in any home environment. They are simply a halo speaker that is appropriate for a music hall environment. My listening area is 30 by 40. Even the 803's can fill it with over >100 db levels without breaking a sweat. The D802 is the home king of the hill now. The 800 is a "look what I can do" showcase for BW.
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  #98  
Old 11-14-2019, 07:41 AM
meltemi meltemi is offline
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Quote:
Originally Posted by Wised View Post
The 800 is overkill in any home environment. They are simply a halo speaker that is appropriate for a music hall environment. My listening area is 30 by 40. Even the 803's can fill it with over >100 db levels without breaking a sweat. The D802 is the home king of the hill now. The 800 is a "look what I can do" showcase for BW.
803 D3, 802 D3, 800 D3: with top electronics and cabling the 800 D3 is the best sounding of the three regardless of the levels.

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  #99  
Old 11-14-2019, 09:21 AM
Levitator Levitator is offline
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Quote:
Originally Posted by meltemi View Post
803 D3, 802 D3, 800 D3: with top electronics and cabling the 800 D3 is the best sounding of the three regardless of the levels.





Couldn’t agree more!
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  #100  
Old 11-14-2019, 12:03 PM
Wised Wised is offline
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Aside from the larger woofer on the D800 and associated bigger cabinet to handle them, the 802 is an identical speaker. Same tweeter, same midrange with the same enclosure for both. The cross over is also the same though tuned for the different bass unit. Unless BW added some magic pixie dust the frequencies covered by such should sound exactly the same, any differences would be in bass handling. Which, as is expected from bass to be noticeable mostly at higher levels given the ears insensibility to bass which is in reality is felt more than heard. Im not disputing that the 800 is a better speaker, that's why its the halo, however, in the average home at normal listening levels of around 70db most of its superiority will not be demonstrated.
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