L volume bass reflex cabinet with 2x HP reflex tube, 9 cm long. from 36/ 30 Hz (-3dB/-8dB). beyma 15LX60 V2 order no. bylxv2 EUR ,00 excl. User review from ecce48 about Beyma 15LX ca tape drive!!. Beyma 15LX Resonant Frequency, fs 35 Hz. D.C. Voice Coil Resistance, Re ohms. Mechanical Quality Factor, Qms Electrical.
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The PD is considered to be a great driver in these and the LX60 looks better in a lot of areas. 15l60 Surface Area, Sd m 2 0. Displacement Volume, Vd cm. Yeah, it was just a thought as i can get them cheap and PD are out of stock of PD’s and factory is off beyna hols until 23rd August Is it just me? Or is everyone trying to build speakers of their own, trying to do it cheaper rather than better? The way I see it is by building my own cabs, I can spend my money on components Begma if you look, i’m asking because of lack of availability rather than price – i’ve got no problem sticking my hand in my pocket deep though they are!
Has anyone tried this or modelled it? Voice Coil Resistance, Re 5. Mechanical Quality Factor, Qms 8. Yeah, but its not strictly a horn is it, that’s why i’m curious, and the LX series are supposed to be good in BP boxes. Probably, but then there’s the whole, it’s not really beyyma horn, it’s a horn bandpass cab.
Whats the rule a true horn has to be at least a quarter of the lowest wavelength it’s trying to produce path length from driver to mouth I think. Pulling stuff out the FAQ: With short folded horns, or bandpass horns like the HD15 the effect is even more pronounced. A short folded horn with horn length of around 85 cm and a mouth area of sq cm, so a horn with an 85 Hz cutoff quarter space will sound really hard with high EBP drivers in them.
The PD will rip your head of in one of these bins, but lower EBP drivers though not as low as the PD will smooth the sound out and make it more listenable.
Drivers like the PD will work in a short folded horn because the cab is not really a horn. For the driver to be properly loaded by a horn means a horn length of over 5. When the horn is less than 5.
Basically the horn just adds a bit of gain from around 80 to Hz, the cab will produce notes above and below these frequencies, just at a lower volume.
You want a driver with a low resonance a powerful motor system and good damping, the PD has all of these. Most of my short horn designs will work down to 50 Hz because I design them to be sealed boxes first that just have a bit of extra gain and kick from the horn in the 80 to Hz range.
Below the horn cutoff most of these short horns will still produce a useful output down to the cutoff point of the sealed box So it looks like there may be some middle ground, but the Beyman may not be in it. That said, the rule of thump was below 0.
Don’t forget though driver specs are never absolute.
Beyma 15LX60 (Version 1) Recone Kit 8Ohm
Suck it and see when it’s close I suppose. It may even be with a bandpass horn whatever it actually is, the parameters required change, it’s got a nice low resonance, and an average BL and below average Qts. Thanks for your time Rastaman. Hey don’t take my word for it, it’s not like I’ve ever built them yet.
Was just offering what info I have gleaned from this site and others. What about the MaxPro drivers from Nightfire they usually have similar specs to the PD’s you can probably find a useable 15″ there, thats what I’m aiming for when I finally build some ‘s, they seem to be close to the PD line, at least the 18″‘s do.
Nah, i’m just being stupid really, i’d like to keep them beeyma the same loading and i do love the PD’s. Is there not someone out there that is building better speakers rather than cheaper speakers?
I had to ask myself this question. Do I 15xl60 cheap speakers which I have bought and have blown. I am with the understanding that if you build these plans with the recommended speakers that are given that you will not only have great speakers, but you will have great speakers you will be proud to say “Yeah, I built these”.
Hd15 – Beyma 15LX60 loading
This is just my opinion and my soapbox time. If I have offended anyone, it was not my intention. I have spent hours upon hours trying to find cheap woofers for the plans. The time I spent looking for cheaper speakers I could have used building them. Just perhaps not the most suited to the box which is why i asked.
ca tape drive!! – Reviews Beyma 15LX60 – Audiofanzine
Just curious, but you’re in the US too, where PD drivers beym very hard to come by, almost all the Speakerplan designs have a PD driver as their first choice, so what do you use instead? Or do you import PD drivers? Lucky you have long arms then You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create beymaa in this forum You cannot vote in polls in this forum.
This page bey,a generated in 0. Below the horn cutoff most of these short horns will still produce a useful bryma down to the cutoff point of the sealed box.
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