What 6.5-8 inch Full Range drivers should I use for my build?

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daye.audio

Member
Joined 2022
#1
Hey!

I am quite new to the speaker building community but I wanted to take on a challenge. I am looking to build a pair of cabinets similar to the old Altec Lansing 612 cabinets, they are going to be ported and I want them to use an 8 inch driver (or something within that ball park). The drivers are going to be powered by a TinySine TSA7500 Class D amplifier (or anything similar, I have been playing around with the idea of using TinySine TSA3118B(TWS/Apt-X) amplifiers to get true wireless stereo as well.

What I am now looking for is a full range (or maybe a coaxial) driver that is preferably 8 inch, but I could go down to 6.5 inch as well. I recently visited a store that was using the Seas T18RE/XFCTV2 and I really liked the sound of them but they are a bit out of my budget. I am mainly looking for something under $100/driver, but worst case scenario I could go up to $150/driver. It doesn't have to be the most high end speaker, but I would like a good bass and decent high end. Do you guys have any advice?
 
#3
It depends on how big it should be. But a Mark Audio CHR120 or CHN110 should be on top of your list i think. The CHR120 can work well in a 50L reflex, the Altec 612 is about 180L so you will have to scale it down.

If you want to build it on scale, i would take a bigger driver like the Fane Sovereign 12-250TC (that also fits your budget). I did build a reflex cabinet for that Fane and mine is 175L tuned to 30Hz (only working like that on low power (<20w), so more in the region of the original 612 cabinet. I made it taller and less wide altough.
 
#4
waxx said:
It depends on how big it should be. But a Mark Audio CHR120 or CHN110 should be on top of your list i think. The CHR120 can work well in a 50L reflex, the Altec 612 is about 180L so you will have to scale it down.

If you want to build it on scale, i would take a bigger driver like the Fane Sovereign 12-250TC (that also fits your budget). I did build a reflex cabinet for that Fane and mine is 175L tuned to 30Hz (only working like that on low power (<20w), so more in the region of the original 612 cabinet. I made it taller and less wide altough.
Click to expand...
Okay cool I'll check them out. I'm thinking around 40-45L so the Mark Audio's would be fine. Are the CHR120 or CHN110 to prefer?
 
#5
daye.audio said:
similar to the old Altec Lansing 612 cabinets
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Altec-612.png


Mark Audio CHN-110, Fostex FF165wk (cab will be uch smaller) or SEAS FA22 (needs pahase plugs).

http://www.planet10-hifi.com/downloads/B200-phase-plug.pdf

These plugs work, some notches need to be added to clear the non-flat bits of the top of the pole-piece.

dave
 
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#8
daye.audio said:
I am quite new to the speaker building community but I wanted to take on a challenge. I am looking to build a pair of cabinets similar to the old Altec Lansing 612 cabinets, they are going to be ported and I want them to use an 8 inch driver (or something within that ball park). Do you guys have any advice?
Click to expand...
Greets!

Hmm, it's ~6.5 ft^3 net/~42 Hz Fb, so way too big for most (all?) 8", so do you mean a ~scaled 612, which will mean a (much) higher Fb or one that just looks something like one at a glance, though vent might not? Going with a smaller driver will likely just make it worse vent wise.

Sheesh! I keep getting caught out with these compressed threads! :headbash: I only saw the first two posts till Dave posted after me.
 
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#10
daye.audio,
I recently built a set of XRK-971's Nautaloss speakers using PEs 299-609 6 1/2" mid-bass woofer and a GRS 1TM-4, and I love the sound. The woofer was only $7.98, and the tweeter $3.98. I have solid bass down into the high 30's.
 
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