8" Active Studio Monitor

Nice build!

They're still going strong in my mates studio and used 3-4 times a week. I ended up changing the tweeters over to the SB29SDAC-C000-4 a few years later for better dispersion in the top freqs, plus it was 4ohm vs 6ohm for the SS so better for the Hypex, lower dist too I think.

Edited by vertx - 17 September 2022 at 12:18am

so even with 250 to the volt they still could of used more power thats interesting . 

jamesccart wrote: so even with 250 to the volt they still could of used more power thats interesting .  maybe I would need the the fusion523 then . how do you rate the sound quality of the volt driver I know its only an 8 but their reputation leads me to believe it will be a really good driver ?

How much power you'd need would depend on your requirements and use case. 125w - 250w in a studio environment is probably OK depending on if you're hitting excursion limits pre or post this drive level, which is going to depend on your enclosure net volume and design. Also your might hit port chuffing limits before you hit 500w peaks into the volt anyway depending on how much port length and diameter you can get into the design.

I like the Volt driver, from memory it's got a nice high BL for an 8" and has a decent sized magnet on it for an 8", excursion isn't huge though, but the poly cone does soften the breakup in the upper freqs pretty well. Would be nice for it to have a vented pole piece but maybe it's not really necessary in a smaller wattage driver. If I didn't have the huge range of sbacoustic options I'd still look as ordering them directly from Volt if I needed. If you're local I'd say give em a go.




SPL and drive level was not calibrated for these so I'd say you can probably only use them as an indication of the distortion profile as a whole.

Edited by vertx - 18 September 2022 at 12:43pm

For the graphs in 2018 (at the start of the thread) I was using Dayton EMM-6 and Focusrite Saffire 6 interface and Room EQ Wizard at 44.1khz. For the more recent measurements I would have used an Earthworks M30 + Focusrite Scarlett 2i4 and Room EQ Wizard at 96khz. REW is a great tool for measuring lots of audio related things and there's a lot of great tutorials around for the software. If you are software inclined don't be afraid to give a CAD program like Solidworks or Fusion a go as it helps you get the ideas out of your head and "onto the page" so to speak.

All the drivers I've used from Volt have met expectations but I have only used a few really.
Does sbacoustics make an 8" woofer as good as the BM228.8 ? Possibly, but driver selection for me is more about availability, lead time, ability of manufacture to fill large or small orders, cost to performance ratio, reputation of manufacture, etc. It's pretty easy to put a lot of expensive drivers in a box with a bad crossover and get worse performance than putting ok drivers in well implemented enclosures with intentionally designed crossovers. Subscribe to Voice Coil, watch Bennett Prescots and videos on YouTube, read lots of forums (and filter the noise out), plus join all the Facebooks groups as there's lots of good stuff in there - sbacoustics loudspeaker fans, and DIY loudspeaker project pad, etc.

Edited by vertx - 18 September 2022 at 12:58pm