Dayton Audio PS 220-8 driver questions?

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Jeffrey 01

Jeffrey 01

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Joined 2016
#1
Hello everyone. I have a friend that is looking to build a fullrage speaker with 8 inch drivers. He is looking at the Dayton Audio PS 220-8 8 inch full range drivers. Has anyone used them or have heard them? I have not seen much at all about them on line? I would tell him to buy A.N. drivers but, I don't know much about them. I know A lot about Fostex but the cone color is not black. I would tell him to go with the Fostex ff 225wk but, I have read it needs a tweeter? Also he is looking for a bass reflex cabinet. Well that's about it. I hope someone can help me help him out?. Thanks Jeff
 
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#2
Probably because it's a Parts Express driver (Dayton are their house brand). They get more attention over on their Techtalk board.

They're a decent unit of their type; off the top of my head they can just about scrape THX spec. levels (don't quote me on that, I'm speaking from memory and the caffeine hasn't yet kicked in this morning). A significantly rising on-axis response so you either need a shelving filter and / or be a goodly way off-axis. Nicely made, reasonably efficient. Pretty solid unit. They do need a reasonably sized box; a ducted vent reflex of 65 litres tuned to 42Hz should yield decent results with a lightly damped alignment that will be fairly flexible in a variety of room positions (avoid maximally flat alignments -they'll have excessive LF gain unless pulled well away from room boundaries).

Kurt has a decent MLTL (looks like a reflex but is functionally slightly different) design on his website: Speaker Design Works
 
#4
Thank you both for the replys. I will let my friend know. I had no Idea the PS 220-8 drivers need such a big box. I never really looked at the specs. ( I guess I should have ?). Funny I Usually look over the specs to see how big the box will be? This time it just never entered my mind maybe because it's not my own project? Well thanks again. Jeff
 
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#6
I agree with you Scottmoose. Now about the Audio Nirvinna. I have always liked the A.V. looks. Am just cautious because models seem to change a lot over there. I was looking for the basic 8 inch from them and they are gone. Maybe I can color the Fostex cone black without hurting it for him? I know madisound said it would be advised not to because it can change the sound of the drivers? Again so many ways to slice a cake. Jeff

P.s. How about the Betsy drivers? I forgot all about them?
 
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#7
As far as I know, the Audio Nirvana range doesn't change a lot -they've got shot of the entry level units, but that's all. The rest has simply been additions, with them offering whizzer cone units with ferrite, neo. and AlNiCo motors, and introducing a new range of wizzerless units with ferrite and AlNiCo motors.

As a general observation, I would recommend ignoring the verbiage on the Commonsenseaudio website. Likewise, in my opinion (for whatever that's worth), the majority of their box designs and statements about such are also utter twaddle. Read the specs., remember that their production tolerance is not stated, ignore everything else, and make a decision based on data.

Re colouring the Fostex cones, Dave's been doing that for years as part of his modification packages, which in my experience significantly improve the raw drivers, so that's something you may wish to consider. For completeness, I should point out that Dave is a personal friend -however, I have no involvement with his Planet10 driver modifications, other than having had (and still have) some of his modified units, which have been a significant improvement on the unmodified Fostex drivers.

I haven't heard the Betsys myself, so can't comment other than noting they have a following & appear to be liked, so assuming the spec. is appropriate for what you want them to do (which is always the bottom line -you can have the 'best' driver in the world at a particular thing, but if it can't fit your requirements, it's no use to you) worth considering.
 
#8
Scottmoose said:
Read the specs., remember that their production tolerance is not stated, ignore everything else, and make a decision based on data.
Click to expand...

I had a pair of the old Super 8 here and the 2 drivers measured so different i would not consider them the same driver at all. near +/- 20% from the average.

attachment.php


Re colouring the Fostex cones, Dave's been doing that for years as part of his modification packages, which in my experience significantly improve the raw drivers, so that's something you may wish to consider.
Click to expand...

You have to keep the coating light and it does not create a consistent black, but it does help suppress the HF ringing.

attachment.php


dave
 

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#11
I have a pair of the Seas 8 inch full range speakers the last few years and enjoy listening to them a lot . I wound up cutting the value of their suggested contour circuit down quite a bit though . YMMV
Haven't heard the PE models so can't help there.
I got the Seas from Madisound
 
#15
So Dave. It sounds like the seas drivers would be a good Match for my friend? A sealed box. Wow I haven't seen a sealed box design in a long time. Wondering ?How much is it for the Enable Treatment to these drivers? Just trying to give him all the options? Also good idea about using a aready built box. Thanks Jeff
 
#16
Scottmoose said:
As far as I know, the Audio Nirvana range doesn't change a lot -they've got shot of the entry level units, but that's all. The rest has simply been additions, with them offering whizzer cone units with ferrite, neo. and AlNiCo motors, and introducing a new range of wizzerless units with ferrite and AlNiCo motors.

As a general observation, I would recommend ignoring the verbiage on the Commonsenseaudio website. Likewise, in my opinion (for whatever that's worth), the majority of their box designs and statements about such are also utter twaddle. Read the specs., remember that their production tolerance is not stated, ignore everything else, and make a decision based on data.

Re colouring the Fostex cones, Dave's been doing that for years as part of his modification packages, which in my experience significantly improve the raw drivers, so that's something you may wish to consider. For completeness, I should point out that Dave is a personal friend -however, I have no involvement with his Planet10 driver modifications, other than having had (and still have) some of his modified units, which have been a significant improvement on the unmodified Fostex drivers.

I haven't heard the Betsys myself, so can't comment other than noting they have a following & appear to be liked, so assuming the spec. is appropriate for what you want them to do (which is always the bottom line -you can have the 'best' driver in the world at a particular thing, but if it can't fit your requirements, it's no use to you) worth considering.
Click to expand...


Thanks Scottmoose. That puts things in perspective. Jeff
 
#17
Jeffrey 01 said:
How much is it for the EnABL Treatment to these drivers?
Click to expand...

Jeff,

It includes phase plugs so EnABL/treatment would be $180 USD. I have a new pr here, so that would make logistics easier.

Here is the sealed sim, looks like a well damped sealed box between 35 and 70 litres is appropriate.

attachment.php


dave
 

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