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<blockquote data-quote="jeffs42885" data-source="post: 1035929" data-attributes="member: 557343"><p>okay heres my issue..</p><p></p><p>I bought a speakerman box a few weeks ago and got it metered last week it did 140.8 which seemed mighty low, of course it was an old ac rta meter and everyone said it was off by several db.</p><p></p><p>my local shop has a show this weekend, and they got the meter in yesterday. i ran up, with 2 boxes.</p><p></p><p>2.5 tuned to 36hz</p><p></p><p>4.5 tuned to 45hz</p><p></p><p>So i play various tones on each boxes, the smaller box did 142.5 max (SAME EXACT METER) and the bigger box did 142.3. I don't see how this is possible, I really dont. I didnt see the meter when this was going down, so the owner of the shop coulda been jerkin me around, so that I use his box and give his box building skills some exposure.</p><p></p><p>I tossed the smaller box in the car, and headed to their show today.</p><p></p><p>So during the day I was playing my sub showing it off you know with the trunk open. I was playing bass i love you..then some ludacris...</p><p></p><p>smoke starts coming from the port.. I immediatly shut it off, and being the noob i am i went and talked to the owner of the shop.</p><p></p><p>he said that the sub had no backpressure thats why it was smoking.</p><p></p><p>meter time came around and I did a 142.1..which i was not impressed with.</p><p></p><p>can someone please explain to me what is going on and what the hell i should do?</p></blockquote><p></p>
[QUOTE="jeffs42885, post: 1035929, member: 557343"] okay heres my issue.. I bought a speakerman box a few weeks ago and got it metered last week it did 140.8 which seemed mighty low, of course it was an old ac rta meter and everyone said it was off by several db. my local shop has a show this weekend, and they got the meter in yesterday. i ran up, with 2 boxes. 2.5 tuned to 36hz 4.5 tuned to 45hz So i play various tones on each boxes, the smaller box did 142.5 max (SAME EXACT METER) and the bigger box did 142.3. I don't see how this is possible, I really dont. I didnt see the meter when this was going down, so the owner of the shop coulda been jerkin me around, so that I use his box and give his box building skills some exposure. I tossed the smaller box in the car, and headed to their show today. So during the day I was playing my sub showing it off you know with the trunk open. I was playing bass i love you..then some ludacris... smoke starts coming from the port.. I immediatly shut it off, and being the noob i am i went and talked to the owner of the shop. he said that the sub had no backpressure thats why it was smoking. meter time came around and I did a 142.1..which i was not impressed with. can someone please explain to me what is going on and what the hell i should do? [/QUOTE]
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