vinceom

Thank you Phil. I was very lucky to arrive few weeks ago to your messages and on basschat. The result wouldn't be so great. Thanks again for all your advices. And your video on Youtube is very useful !! Vinceom

Hi everyone here it is my bass cab . Sound is great. Question : does the driver need a break-in period and what is the best way to do it? thanks! Vinceom

Hi This is the cab with ports (flared diy !). The cab itself passed the "knuckle" test, very very little vibration of cab panels. Tomorrow, i'll bevel the edges with a 12mm radius router. Vinceom

Hi everyone building the cab is very easy. But I had some problems with the ports. I can’t measure impedance to check whether tuning frequency is ok so I tried with rice on the cone. It didn’t work very well. So I trusted Winisd and cut the pipe to the right sound. And sound’s pretty good ! One more thing : is it a problem if the cab is not 100% air proof ? Thanks! Vinceom

Hi and here is my cab. Thank you very much for the advices. The events aren’t made for the moment (because of the covid, my 80 mm cylindar saw is in my other house). Some informations : Okoumé plywood 15 mm, bracket and bracing 20x20mm. The driver is a Beyma SM212. external dimensions : H430xW500xD360 internal dimensions: H400xW470xD300 The amp head is TC electronics BH250. I will try tomorrow morning the sealed version. Thanks to all of you guys ! Vinceom

Thanks

If I already had the driver, i could check with a ruler ... I'm ordering this week all I need for my cab and i don't know this information. Vinceom

Hi everyone Is there someone who remembers what is the width of Female Disconnect Crimp Terminal to plug wire to Beyma SM 212? Impossible to get this information ... Thanks ! Vinceom

Hi did you check the tuning by mesuaring impedance or with rice on the cone ? And finally, what was the tuning ?The ports lentgh were calculated to have a tuning about 50 Hz. thanks

Thank you mery much Phill. Vinceom

Hi Phill I have one more question. When i make a simulation with Winisd, with 2 ports of 64 mm diameter and Fb = 50 Hz and Vb = 30L, Winisd calculates 21 cm for the length of the ports. Winisd calculates 16 cm for the length if Vb = 37L, the external volume of the box . So ? How did you calculate 16 cm for the length of the 2 ports ? Thanks

Oh yes ! I didn’t remember. Thanks

Thanks Phill. I calculate height 53 cm with a cross multiplication on the video, not very accurate... The cab seems big for only 30L ! I don’t know yet if i build a 30L or 50L. What did you lose with your 30L cab? Loudness ? But you get more accuracy in sound ? I will load the Beyma SM212 and i want to hear its 350W !(my bass amp head is TC BH250 250W) Thanks !

Phil, what are the dimensions of your box in the video page 1 ? The front panel is about 53 cm height. It's not the height of your 30L. Are there dimensions of your first cab (50L) but with only 2 ports ? And what are diameters and length of the 2 ports ? Thanks, take care Vinceom

Ok. Thanks Phil!