What are your opinions on using these? Do you use them all the time? What differences do you hear with using them/using only half of the plug/not using them at all. Thanks people
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Bowers & Wilkins 683 Speakers
Rotel RB-1090 2 Channel Amp
Rotel RC-1082 Stereo Pre Amp
Rotel RCD-1072 CD Player
Pro-Ject Debut Carbon w/ Ortofon 2M Red (sitting on a piece of slate supported by 3 "solid tech feet of silence" isolation feet)
Rotel RLC-1040 Power Conditioner
Shynyata Research SR-Z1 Power Outlet & Venom 3 Power Cords x 4
Tara Labs RSC Vector 1 Speaker Cables & Interconnects
Pioneer PDP-5070HD 50" Plasma
Playstation 3
Shaw HD PVR
Primacoustic Room Treatments -
I'm pretty sure they're there to damp the driver. I haven't thought about giving my 685s a listen w/o them.Stereo: Revel F208, Parasound JC2, JC1's, Oppo HA-1, VPI, Dynavector, Moon
HT: B&W 802D2, 805S, HTM4, Marantz, OPPO BDP95, Velodyne DD-12's
HP / secondary system: Woo Audio W2, Carver Sunfire, Kef LS50, Denon, and too many headphones to list -
From what I've read they extend a driver's high frequency range, by preventing cancellation of high frequency sound waves emitted from the center (or near the center) of the driver. Personally I've never owned a speaker that had them, they look cool though.
EDIT:
According to this the intent is to prevent distortion and increase clarity:
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I don't think the OP is referring to the phase plugs (which is what he said), but rather the foam bass port plugs.
If so, then you would want to experiment and find out what sounds best for your room. You will likely find that if you placing the speaker near a wall or room boundary then this will increase the bass output due to reinforcement and may make the speaker sound boomy. In this case installing part or all of the foam port plug will tame the boomy bass.
The same might be true if the room is small etc.
If you are running a sub, you may want to plug the ports as well.. This should make the mid bass a little more accurate and you can let your sub handle the lower bass.
Think or ported vs. sealed subs.. Similar rules apply here.
Cheers,
StuartMain System:
B&W 801D
Emotiva USP-1 Pre-Amp
Chord SPM-650 Stereo Amp
Oppo BDP-105
Squeezebox Touch
Second System:
B&W CM7
Emotiva UMC-1
Emotiva UPA-2
Oppo BDP-83SE
Grant Fidelity DAC-09
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Ah, I had thought there might be some confusion there.Originally posted by stuofsci02Comment
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Yes that was my mistake. The foam port hole plugs...sorry lolBowers & Wilkins 683 Speakers
Rotel RB-1090 2 Channel Amp
Rotel RC-1082 Stereo Pre Amp
Rotel RCD-1072 CD Player
Pro-Ject Debut Carbon w/ Ortofon 2M Red (sitting on a piece of slate supported by 3 "solid tech feet of silence" isolation feet)
Rotel RLC-1040 Power Conditioner
Shynyata Research SR-Z1 Power Outlet & Venom 3 Power Cords x 4
Tara Labs RSC Vector 1 Speaker Cables & Interconnects
Pioneer PDP-5070HD 50" Plasma
Playstation 3
Shaw HD PVR
Primacoustic Room TreatmentsComment
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I agree, I didn't think the phase plug was removable/replaceable on the 600 series??Digital Audio makes me Happy.
-DanComment
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They are, I can unscrew the phase plugs (in the center of the kevlar mid / bass driver) in my 685's just like the my old 802Ds.Originally posted by PewterTA
Also, the new foam plugs for the ports are a three stage deal. You can remove the inside of the foam plug to effectively reduce the size of the port hole. So, you can plug it completely, plug it without the inside foam part (makes the foam plug look like a donut) or no plug at all.
Ironically, I don't think you can remove the phase plug from the new 802 Diamonds. I haven't even tried with mine....Stereo: Revel F208, Parasound JC2, JC1's, Oppo HA-1, VPI, Dynavector, Moon
HT: B&W 802D2, 805S, HTM4, Marantz, OPPO BDP95, Velodyne DD-12's
HP / secondary system: Woo Audio W2, Carver Sunfire, Kef LS50, Denon, and too many headphones to listComment
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They should do, I'm sure I took them out of mine when I had them. Not sure 'upgrade' is the right word though.
Sent from my SHIELD Tablet using TapatalkMusic: Intel NUC -> Antelope Zodiac Platinum -> Classe CA-2300 -> B&W 802 Diamonds & 2x SVS SB13UComment
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Kal Rubinson
_______________________________
"Music in the Round"
Senior Contributing Editor, Stereophile
http://forum.stereophile.com/category/music-roundComment
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Comment
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Kal Rubinson
_______________________________
"Music in the Round"
Senior Contributing Editor, Stereophile
http://forum.stereophile.com/category/music-roundComment
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Phase Plug
A phase plug is a stationary structure placed at the center of the loudspeaker driver's diaphragm, just in front of the voice coil. It is typically a cylindrical or conical-shaped object made of materials like plastic, metal, or wood. The phase plug's design may vary depending on the specific driver and its intended application. Its primary purpose is to improve the driver's performance by addressing issues related to phase cancellation and dispersion. The function of the...19 July 2023, 18:28 Wednesday -
I have a buddy that just bought a beautiful set of red cherry Nautilus 805's however when we took out the phase plugs the bottoms of the plug were melted. Its almost like the phase plugs got hot and were disformed. Has anyone ever seen this? The speakers sound fine but both phase plugs are melted at... -
Has anyone upgraded the plastic phase plug's on their B&W speakers for a pair of aluminum or copper ones similar to the phase plugs used in the signature speakers?
I found these on eBay and plan on upgrading my 684's, 686's, and HTM-62 Center Channel. I went out on a whim and purchased... -
So here's my idea; I have a room dedicated for hometheater with a rotel rsx1057 running a B&W DM300 series surround set.
I also have an RB-1080, 2 B&W 683's and a rcd-1072 setup with a Rc-1070 in another room.
I'd like to use the 683 in the theater room because...20 August 2008, 19:30 Wednesday -
Appologies for the delay in getting my aluminium plugs ready - but they are now coming out of the shop.
Anyone who still wants these just PM me or mail me at caleb@iafrica.com and I will arrange for you to pay and send you these lovely looking (and sounding) alluminium plugs.
...
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