Newbie. Need help with a simple 2 way.

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cross reference

Member
Joined 2011
Hello all. I am looking to do a simple 2 way. I am loong at a 8 inch driver and a tweeter. I am going to be using this speaker for all types of music but, mostly voice dutys. I am a paper fan. I would like a 8 inch driver that is very detailed and very natural and very open and spaceious if I spelled that right? Well please let me know of you can help thanks jm.
 
stoc005

stoc005

Member
Joined 2007
Piffle. A good two-way can be buillt with an 8 incher. The trick is to XO to the tweeter at a very low frequency < 2Khz or so. Now, go find a tweeter that can go that low with reasonable power handling. There are a few out there. I'd also recommend at least a 2nd order XO. I tried a 1st order and I never liked what I heard.

I used an Audax HM210G0 and a SEAS tweeter, both discontinued.
 
AllenB

AllenB

diyAudio Moderator
Joined 2008
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sreten said:
Proper two way 8" bass mid drivers are out of fashion,
Click to expand...
This is true and yet 8" drivers are still very popular here. The problem was, that when an 8" woofer reaches high enough to meet a typical tweeter, it is beginning to show narrow directivity and is possibly in cone breakup.

The history is that the 8" driver is large enough to give more satisfying bass, and with the right baffle a satisfying lower midrange, so the compromise was considered acceptable. In fact, where the compromise is involving a reduction in output in the 3-4kHz region, this style of speaker would be favoured by those who search for a laid back sound. (There's no reason nowadays you can't add that sound to an otherwise proper speaker, if it's to your liking.) Tweeters were typically different then as well, having larger cones and narrowing patterns.

Of all the options there are probably three main ones (as already being mentioned here). You can use smaller drivers in a greater number as sreten has suggested which allows a higher crossover point. <rant>Some think you need a 6" driver for good midrange, but I don't necessarily</rant> . The waveguide is also good.

Secondly, you can cross lower but not with just any tweeter...

Thirdly, my preferred option is to let the larger woofer reach its narrowing directivity then meet it with a tweeter that also has narrow directivity, such as with a larger waveguide.
 
S

sreten

R.I.P.
Joined 2003
Hi,

I am well aware of the properties of 8" two ways, I have a pair.

what is asked for is "simple", and the simple fact is an 8" 2 way isn't,
not anymore, unless you can come up with suitable drivers / design.

Seas used to do a kit with a very simple 3 element x/o, both drivers
are now unavailable, and you can't get an equivalent tweeter that
allows such a simple x/o AFAIK.

rgds, sreten.
 
tvrgeek

tvrgeek

Member
Joined 2009
There are still some larger twets out there, 1 .25 inch or so. Not simple, but go look at GedLee. I too prefer paper as you will be pushing the range and paper breakup tends to be easier to deal with. On the other hand, metal cones can me lighter and the breakup higher, so a deep notch may take care of it.

Doesn't Seas have a published design for an 8 two way? Trym.
 
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