Best cheap (under $50) driver to cover everything above ~500-800Hz?

TC9 is good in line arrays, not as single top as it's to low sensitive. You need a few of them driven softly to make them sound good. Drive them at their limits and the distortion rises fast to level that make them sound harsh.

The Faital 3FE or 4FE are much better at this and also cheap. Or the Mark Audio CHR70 or Alpair 5.3.
 
Dave has long been an opponent of the TC9. 🙂
I don’t share his dislike as I’ve had good results with them. They were great value for money a few years back.

I do like the Faital 3FE and 4FE and still have a few on the shelf. Haven’t ever tried the neo version, has anyone compared them?
 
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How is the soundstage of such planar crossed that low ?

Does the op need easy driver to filter passive then EQ with his DSP amp or is it fully active cross-over ? This can enter in the equation too about the choice.
I will do active crossover + DSP. Though I'm hoping to use as little DSP as possible.

I actually have one of those PT-6818s laying around. I was hoping to use it as a replacement for DMLs but its vertical soundstage was too narrow and its treble was a littl bright/harsh. I will give it another try
 
Questions questions questions……are you a sit down in a fixed triangle kind of listener In a dedicated static environment?….is your space treated for first reflections walls, floors and ceiling?…..some diffraction treatment on the front soundstage wall? These are important questions when considering a wide band or full range driver as off axis response is locked to driver diameter…..which is locked to power handling, efficiency and low end extension.
 
There are not many people with that opinion on the net. On the contrary, there are many objective results that look really good. At least what I can discover. I prefer to find out myself, there are too many strange opinions in the world...

Not around here. I got 4 of them on the recommendation of the internet. They sound like a TV speaker with very low DDR. They were heard by over. acoupledozen locals and they had the same opinion. I had touble giving those drivers away. TG9 is WAY better. They are closer to $5 drivers.

dave
 
Questions questions questions……are you a sit down in a fixed triangle kind of listener In a dedicated static environment?….is your space treated for first reflections walls, floors and ceiling?…..some diffraction treatment on the front soundstage wall? These are important questions when considering a wide band or full range driver as off axis response is locked to driver diameter…..which is locked to power handling, efficiency and low end extension.
Fair questions. It's for a portable speaker so it will be used inside/outside my house, played at moderate volumes. So there's not really a fixed space for it, though I generally would space them about 8-10 feet apart and sit about that far from them. So I'd prefer something with more even off axis response even if that means less peak efficiency.
 
A 3.5" is a fairly good compromise between low end output and high end response and dispersion. But if you're going to high-pass it at ~700 Hz, I think I'd try to go smaller. Especially if you've got separate amps with DSP. A 2.5" maybe like that SB Acoustics Kipman725 mentioned, or I guess there's this Audible Physics 220-CP on Newark.com that looks like it might be good. Timothy Feleppa's page has some info on small drivers, but it's a few years old now. He seems to really like the TC7FD00-04 2.5". https://feleppa.com.au/speakermeasmid.html

I made a 2-way based around a 3.5" as a mid-tweet and eventually added a tweeter to get better dispersion (even thought the FR was pretty good).
 
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what could be handy is a TEKTON loudspeaker with a circle arrengement of several TG9 for instance. Such layout is giving a beaming soundstage that is good on axis only, of axis loosing a lot of spl : GOOD for neighboor tranquility in the garden if the next wall gardens are near.
 
Thinking more about this speaker. Are there any downsides with mounting the full range driver off the baffle? Considering doing this for several reasons:

  • Avoids baffle issues (step compensation & directivity issues)
  • Enables bass driver to be on floor to help with LFE
  • Enables me to swap out drivers easily for messing around/experimenting
Won't be any less portable since I can make the speaker "fold" on a hinge. Just a random thought. I've seen some baffle-less "OB" speakers
 
These are very good and right at your price cap: https://www.parts-express.com/pedocs/specs/264-956--tang-band-w3-2141-spec-sheet.pdf

These are also good in the $30 range: https://www.parts-express.com/pedocs/specs/264-911-tang-band-w3-881sjf-specifications.pdf

These Dynavox are getting somewhat of a cult following: https://www.parts-express.com/pedocs/specs/295-614--dynavox-ly401f-spec-sheet.pdf

I‘m messing around with these right now in an open baffle, you’ll need a notch filter for the peak at 8,000hz: https://www.parts-express.com/pedocs/specs/294-1123-faitalpro-4fe35-4-specifications.pdf
 
TC9 is good in line arrays, not as single top as it's to low sensitive. You need a few of them driven softly to make them sound good. Drive them at their limits and the distortion rises fast to level that make them sound harsh.

The Faital 3FE or 4FE are much better at this and also cheap. Or the Mark Audio CHR70 or Alpair 5.3.
The Alpairs are fantastic but they blow past the $50 limit by $40. In my latest project I may end up with them replacing my Faital 4FE’s. I have to get that approved through my finance minister!