gres
Full Member level 4
It's a project of subwoofer on stx.
Temporary it's powered by unitra wsh 205. I'm going to make power amp 300 for subwoofer. Dimennsions: 105x64x43 front glass is back to the middle for 1cm, it cause better visual effect. Inside capacity is 232 liters. Soundproof thanks to 8cm sponge. Inside capacity with soundproof layer is 132 liters, bass reflex has 15cm and it's placed in the middle of rear wall and it's 16cm long. I have also two smll columns on STX 32-300-8-SS. Dimensions: 70x47x35. Inside capacity 85 liters and high tones stx 9/150/8/PJ They have bass- reflex in side walls. Althought when i was designing it I didin't use any calculate program like WinISD, columns play very well. Powered by Technics SU-8055 have strong clear bass and clear high tones, two-ways branch 6 dB/okt, coils with 355mH, cut when 3800 Hz the same at subwoofer.
I don't know why subwoofer has worse effective then one smaller column with one speaker ( i'm talking about 70x47x35 columns). I tested room acousting, placing subwoofer in the same place as column. Bass from column was so strong when sub was a little bit worse. Maybe it's repletion fault or bass- reflex pipe long.
Original text cames from https://www.elektroda.pl/rtvforum/topic1453771.html
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