Friend of mine asked me about making a 1960s/1970s type of speaker. Big baffle. I need some advice on the woofer. I'm pretty sure the midrange I'll be using is 92.5dB/2.83v, so I'm looking for a highish efficiency woofer. I'd like 8", but not sure those will go deep enough, so I'm considering larger. These may cross around 400hz to the mid. Currently considering Beyma 8P300Fe/N, BMS 10RS300, Eminence 10" Kappa Pro LF, Eminence 12" Kappalite 3012LF, and Eminence Deltalite 2512 II. Any other drivers and considerations I should consider?
Eminence Alpha and Beta will work well toward your goal. You have listed more modern type drivers. 12” is a good starting point.
An 8 doesn't feel like the 60s/70s hi-fi vibe to me. A 12 or 15 seems more like the style, but I'm not the customer.
These are aimed at being replacement drivers for that style of speaker.
https://www.parts-express.com/Dayton-Audio-DC300-8-12-Classic-Woofer-295-320?quantity=1
https://www.parts-express.com/GRS-R...5-Realistic-Mach-One-8-Ohm-290-184?quantity=1
These are aimed at being replacement drivers for that style of speaker.
https://www.parts-express.com/Dayton-Audio-DC300-8-12-Classic-Woofer-295-320?quantity=1
https://www.parts-express.com/GRS-R...5-Realistic-Mach-One-8-Ohm-290-184?quantity=1
Forgot to attach the driver data. Also considering the Dayton PA255.
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We're just looking for a certain aesthetic, I don't think my friend wants a gigantic box. And I'd prefer modern driver performance. If we do go 12" I'm leaning towards the Eminence 3012LF. I tested the 3012HO years ago and they have a really good motor.You have listed more modern type drivers. 12” is a good starting point.
Mattstat's post made me think of the recent GRS replacement for Klipsch. It is 15" and 97db sensitivity. They don't post their usual "recommended box size" and if I remember correctly I put it into WinISD and the box needed to be BIG. Likely won't work for you, but the high sensitivity jumped out at me so I wanted to mention it.
https://www.parts-express.com/GRS-K...oofer-for-Klipsch-Speakers-292-830?quantity=1
https://www.parts-express.com/GRS-K...oofer-for-Klipsch-Speakers-292-830?quantity=1
I like me some magnet in my drivers, so I say go Beta...Eminence Alpha and Beta will work well toward your goal. You have listed more modern type drivers. 12” is a good starting point.

Large Baffle: 15” a’la Cerwin Vega!
..but if you need it a bit smaller and efficient: Kappa Pro 10 A” and “(E) bass shelf” BR.
..but if you need it a bit smaller and efficient: Kappa Pro 10 A” and “(E) bass shelf” BR.
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Maximum cabinet volume, and desired F3/F6/F10?
I think a single 8" isn't enough woofer a passive 3 way with 92dB/2.83V. I would think more along the lines of a single 10" vented, twin 8" vented, or twin sealed. 12
I think a single 8" isn't enough woofer a passive 3 way with 92dB/2.83V. I would think more along the lines of a single 10" vented, twin 8" vented, or twin sealed. 12
I wanted a sort of old school vibe with at least good performance, so I made pit viper speakers by Paul carmody into an ATC style cabinet, but opted out on using the stock crossover as the response was very not good, I run them active instead. It's a lot of speaker for not much in driver components. It uses the sd315a, dc130 as mid, and d27 tweeter. Idk how big they want it but I bet you could fit that all into a slightly larger than jbl l100 sized boxed.
bms12N630 (Fs : 32 hz) or Faital 12" (there is a brandnew in 12" perhaps but do not remember the Fs, or the 12PR320 as already said)
Me too but when augerpro said he wanted something 60's or 70's I couldn't help but think steel basket, small magnet, small coil, low Xmax, high Q and high FAR.I like me some magnet in my drivers,
These caught my wandering HiFi eye:.. I'm pretty sure the midrange I'll be using is 92.5dB/2.83v..
https://faitalpro.com/en/products/LF_Loudspeakers/product_details/index.php?id=401005105
I was actually considering this: https://www.madisoundspeakerstore.com/approx-5-midrange/scanspeak-15m/4624g-discovery-5.25-midrange/
But that FaitalPro is cool too.
But that FaitalPro is cool too.
If you want to keep it simple a Fane 12-250TC full range driver would work well.
I have a pair in a sealed cabinet and am very pleased with them.
I have a pair in a sealed cabinet and am very pleased with them.
The Fostex FW305 is a very good medium sensitivity woofer and goes lower than most of the pro type mid/woofers.It suits a 75litre vented box which is a moderate size.
Theres also thr SB34NRX75-6 for sealed cabs and the SB34NRXL75-8 for ported cabs. Both great paper cone woofers which can be used hugher in cutoff than most 12s and sound clean. Both are over 90dB/W sensitive and the NRXL is closer to 93dB/W. Likely the best semi pro woofer for around $300. Very low distortion and has a 3" VC, uncommon for a driver of this type.
This is a cool new mid: https://audioxpress.com/article/test-bench-bold-north-audio-ms-10w-a-legendary-6-5-woofer-from-misco
Not sensitive enough for this project, but interesting.
Not sensitive enough for this project, but interesting.
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