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Low Earth Orbit
DIY Audio
12v Eco project sound system
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<blockquote data-quote="Daniel Cumberland" data-source="post: 24209" data-attributes="member: 370"><p>Re: 12v Eco project sound system</p><p></p><p>Test results!</p><p>1xsmall enclosed sub horn (tang bang w8)</p><p>12 volts</p><p>50 Watt amp / class d amp</p><p>Car stereo loss pass filter</p><p></p><p>First we tried cab in full range from 50w amp. Ok sound levels decent. muffledness, presume from being driven full range. Distorted sound, think course is something to do with cab and wood (mdf) vibrating. Also we made using buiscit joints and though lots of pu glue perhaps they rattle. </p><p>Then we tried using the low pass filter from jonnys car stereo (50w). Now this generated some nice bass though our horn.spacious and with depth and feeling. We were pleased. At about 50 0/0 volume. Still vibrational distotion, but dot sounding like from driver or signal source (iPod /320kbs mp3's).</p><p>Then wired this class d board I brought. In full range wasn't great. Sounded like line level was too low. Best results were using the phones output from the other amp. Into my 25w class d modual in mono ( btl) mode. Not massive db. But at low levels in full range some nice depth and less of the muffledness of before.think this modual runs upto 24v so even in mono mode we probably only reaching 20w.</p><p>Also tried my amp on an old tweeter horn I've been hoarding. Powers this beast easy and wig high pass think would be great. </p><p>So still need to try wig my amp modual and low pass perhaps at higher voltage.</p><p>Dwc</p></blockquote><p></p>
[QUOTE="Daniel Cumberland, post: 24209, member: 370"] Re: 12v Eco project sound system Test results! 1xsmall enclosed sub horn (tang bang w8) 12 volts 50 Watt amp / class d amp Car stereo loss pass filter First we tried cab in full range from 50w amp. Ok sound levels decent. muffledness, presume from being driven full range. Distorted sound, think course is something to do with cab and wood (mdf) vibrating. Also we made using buiscit joints and though lots of pu glue perhaps they rattle. Then we tried using the low pass filter from jonnys car stereo (50w). Now this generated some nice bass though our horn.spacious and with depth and feeling. We were pleased. At about 50 0/0 volume. Still vibrational distotion, but dot sounding like from driver or signal source (iPod /320kbs mp3's). Then wired this class d board I brought. In full range wasn't great. Sounded like line level was too low. Best results were using the phones output from the other amp. Into my 25w class d modual in mono ( btl) mode. Not massive db. But at low levels in full range some nice depth and less of the muffledness of before.think this modual runs upto 24v so even in mono mode we probably only reaching 20w. Also tried my amp on an old tweeter horn I've been hoarding. Powers this beast easy and wig high pass think would be great. So still need to try wig my amp modual and low pass perhaps at higher voltage. Dwc [/QUOTE]
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