24, 2022 - 9:54pm
Hi All.
Yesterday I was listening at pretty loud level (according to Phone SPL meter 83db average with 87db peaks at distance of 9 feets from the speakers) and I did hear I belive "thumping" noise from the Low Frequency driver of my Sonus Faber Olympica 2 speakers only on the drum kick parts of the song (was playing Max-O-Man song by Fourplay on TIDAL 16bit/44khz).
I could see the woofer doing very long excursions but I'm not sure weather I was clipping the amp or was pushing the limit of the speaker. The amplifier is Primare I35 Prisma which according to hifinews can deliver 190W / 395W Continuous power (<1% THD, 8/4ohm) and 192W / 415W / 510W / 260W Dynamic power (<1% THD, 8/4/2/1ohm).
The volume control of the amplifier was at 70 out of 100 units. According to Sonus Faber user manual, the speakers can handle 50 – 250W and the Long-term max input voltage (IEC-268-5) is specified at 20 V rms.
So, does anyone have clue what is happening, am I clipping the amp or is it the speaker defective or is it the song having just to much low bass notes?
Hi All.
Yesterday I was listening at pretty loud level (according to Phone SPL meter 83db average with 87db peaks at distance of 9 feets from the speakers) and I did hear I belive "thumping" noise from the Low Frequency driver of my Sonus Faber Olympica 2 speakers only on the drum kick parts of the song (was playing Max-O-Man song by Fourplay on TIDAL 16bit/44khz).
I could see the woofer doing very long excursions but I'm not sure weather I was clipping the amp or was pushing the limit of the speaker. The amplifier is Primare I35 Prisma which according to hifinews can deliver 190W / 395W Continuous power (<1% THD, 8/4ohm) and 192W / 415W / 510W / 260W Dynamic power (<1% THD, 8/4/2/1ohm).
The volume control of the amplifier was at 70 out of 100 units. According to Sonus Faber user manual, the speakers can handle 50 – 250W and the Long-term max input voltage (IEC-268-5) is specified at 20 V rms.
So, does anyone have clue what is happening, am I clipping the amp or is it the speaker defective or is it the song having just to much low bass notes?
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Sounds like there is some content below tuning (where the driver unloads) and it is flapping in the wind and bottoming out.
dave
dave
Put a sock in it translates to pushing the vent aperiodic. Dense open cel foam, polyfill, fibreglass, even filling the vent with drinking straws.
dave
dave
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Thank you guys for your responses, but putting a sock into the port is not option with this speakers as the port is side reflex across whole speaker. Sonus faber call it STEALTH ULTRAFLEX whatever it means 🙂
If this is your speaker https://www.sonusfaber.com/en/products/olympica-ii/ I can see this happening because the woofer is small for the box size and maybe the whole back is a "port", leaving the woofer "unloaded"?? If your amp has a sub-sonic filter switch, be sure it is on. The speaker web site saz 40Hz so you want to remove anything below that. If you want 20Hz then you need a sub, which may also provide the filter you need for the main speakers.
I have a sub SVS SB-1000 but sadly i dont have crossover functionality on my primare i35 so i can limit the frequency on my mains
Actually I just realized the term is not clackiing i do not hear loud metal sound but bass distorsion. I belive the real word would be thumping sound. I will edit my original poat