Hi.
Looking for suggestions on tweeters to a 2way build with SB acoustics sb15nrxc30-8 woofers.
Does anyone have any experience with these woofers?
I only find suggestions of MTM builds with them. But only have two so would be Great to find a god match.
Br T
Looking for suggestions on tweeters to a 2way build with SB acoustics sb15nrxc30-8 woofers.
Does anyone have any experience with these woofers?
I only find suggestions of MTM builds with them. But only have two so would be Great to find a god match.
Br T
Based on the datasheet they have a smooth response with cone resonances starting at 6 kHz, so most 1" dome tweeters will work. The cone resonances might require some attention in the crossover design.
If you use a ~2.5kHz crossover with at least LR2 slope, the SB21SDC-4 dome tweeter looks attractive because its smaller dome diameter reduces beaming.
The SB26STCN-4 uses a NdFeB motor for a smaller physical case size, which can reduce center-to-center spacing, which will can reduce lobing effects.
BW3 circuits at ~2.5kHz on the tweeter and midwoofer produce constant power and might avoid needing L-R-C filters.
Edge diffraction distortion can be reduced by using bevels/rounds, and modest off-center mounting of the tweeter.
The SB26STCN-4 uses a NdFeB motor for a smaller physical case size, which can reduce center-to-center spacing, which will can reduce lobing effects.
BW3 circuits at ~2.5kHz on the tweeter and midwoofer produce constant power and might avoid needing L-R-C filters.
Edge diffraction distortion can be reduced by using bevels/rounds, and modest off-center mounting of the tweeter.
Attachments
It could be made to work but not well. The SB has a relatively hard cone with strong resonances which need to be suppressed indicating a relatively low crossover frequency. The small ribbon in the Fountek needs to be crossed over high at 3.5 kHz if not higher.
AudioExcite tested the Fountek NeoCD1 and reached this conclusion:
"Compared to a 1” dome tweeter, this small ribbon tweeter has a considerably higher distortion profile. It should preferably be crossed-over at 5kHz or higher, but a 4kHz cross-over point might work if steep filters are used, e.g. a fourth-order (acoustical)."
www.audioexcite.com >> Fountek NeoCD1.0
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SO, you might want to simulate LR4 / LR4 crossovers at 3.5kHz with your sb15nrxc30-8 and Fountek NeoCD1
"Compared to a 1” dome tweeter, this small ribbon tweeter has a considerably higher distortion profile. It should preferably be crossed-over at 5kHz or higher, but a 4kHz cross-over point might work if steep filters are used, e.g. a fourth-order (acoustical)."
www.audioexcite.com >> Fountek NeoCD1.0
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SO, you might want to simulate LR4 / LR4 crossovers at 3.5kHz with your sb15nrxc30-8 and Fountek NeoCD1
Shoot, everyone's looking for that.. no? 😛
Peerless by Tymphany TC5FC02-04 1-1/2" Paper Cone Full-Range Driver 4 Ohm
Meniscusaudio.com and search for Piccolo by Jeff Bagby.
I used that woofer with a different tweeter SB26STCN and have been very happy for 4 years.
Search on parts express.com”s techtalk forum and you will find both
I used that woofer with a different tweeter SB26STCN and have been very happy for 4 years.
Search on parts express.com”s techtalk forum and you will find both
Yes, the Piccolo. Also, go to Madisound and search in the PDF library for designs.
Home - Madisound PDF Library
Home - Madisound PDF Library
I would take a look at the SB26STAC. It is what I ended up choosing to pair with the SB15NAC30-8, which is very similar to your SB15NRXC30-8. The distortion profile is relatively good even at lower frequencies which should help. That's the reason I chose the SB26STAC over the SB29RDC, because the SB29RDC has a large distortion increase around 1 kHz.
The dayton RS28 series might be worth a look too, and the SB26ADC if you're interested in an aluminum tweeter.
The dayton RS28 series might be worth a look too, and the SB26ADC if you're interested in an aluminum tweeter.
I am using them in a pair of 12 liter ported bookshelf speakers, 2-way. They aren't totally finished yet though, it's the project I'm currently working on. 🙂
My own design - you can see it here.
My First DIY Build - SB15NRX30-8 & SB26STCN-4 (pic heavy) -
Techtalk Speaker Building, Audio, Video Discussion Forum
hi there I have the same 5inc mid bass drivers .. are you suggesting a crossover point of 2.5khz would be best for this woofer and a small tweeter / I will be using the sb neodymium tweeter with small 72mm faceplate I cannot find the frequency range for the sb woofers I only bought them because they were half price in a sale .. so i don't know if they are good