kenratboy Posted March 1, 2002 Share Posted March 1, 2002 Maximo: You will NOT get a e-mail or phone call if your order was SUCESSFUL. Call JBL Pro in 48-72 hours after you order and they will give you all the details. Unlike amazon.com or whatever, you need to call JBl to get info about your order. They're nice folks, so call em' and they will help you. force95: yes, ALL of the 4638's are in a genuine black vinyl finish. The price (~$216) includes the shipping anywhere in the lower 48 states. ENJOY! Quote Link to comment Share on other sites More sharing options...
Marathon Man Posted March 1, 2002 Share Posted March 1, 2002 I had the same problem with a power amp and at that time I was using an old Panamax 1000 surge protector which did some line conditioning, but I had to also add a 15 cents 3 to 2 plug power adapter. The power adapter I think did the trick. I now use the Monster Power 5100 and that beast lets no hum in. If the Monster Power or the adapter or both don't do the trick then it very well may be in the amp itself. ------------------ MM This message has been edited by Marathon Man on 03-01-2002 at 01:44 AM Quote Link to comment Share on other sites More sharing options...
Marathon Man Posted March 1, 2002 Share Posted March 1, 2002 good luck by the way. ------------------ MM This message has been edited by Marathon Man on 03-01-2002 at 01:35 AM Quote Link to comment Share on other sites More sharing options...
Manuel Delaflor Posted March 1, 2002 Share Posted March 1, 2002 quote: Originally posted by kenratboy: If I cannot hear it from the sub, its too low. Sorry to disagree. But with this methodology you could be hearing 20Hz tones 10dB below 30Hz tones. So, the sub will not be playing 20Hz at good levels. You need an RTA coupled to a calibrated mic to really know which tones are played at a flat response. Now, if you feel really good with only your hearing, then I suggest you to use music with lots of power in the lower 20's, and then wait for them to happen and hear if the power you are getting is similar to the 30's or 40's. In other words, by isolating frequencies you are not experiencing the real life potential of the sub. Quote Link to comment Share on other sites More sharing options...
CharlieTuna Posted March 1, 2002 Share Posted March 1, 2002 And RTA stands for... ------------------ ===================================== You can tune a radio, but you can't tuna fish! ===================================== Quote Link to comment Share on other sites More sharing options...
Seb Posted March 1, 2002 Share Posted March 1, 2002 real-time analyzer ------------------ http://members.fortunecity.com/sebdavid - go laugh at my crappy website/equipment http://www.dvdprofiler.com/mc.asp?alias=Sebdavid - go laugh at my puny little DVD collection Quote Link to comment Share on other sites More sharing options...
mike stehr Posted March 1, 2002 Share Posted March 1, 2002 A good RTA and Calibrated Mic can get spendy. Love to have one. The Radio SPL meter BTW, onlys reads down to 30 Hertz and Maxes out at 10,000. But I agree with Manuel, you can't really get a fix on things without the proper RTA and Mic. You can miss those lower frequencies by ear. Quote Link to comment Share on other sites More sharing options...
Schmidty Posted March 5, 2002 Share Posted March 5, 2002 There is some guy selling this on eBay for $350, lol Quote Link to comment Share on other sites More sharing options...
jnorv Posted March 5, 2002 Share Posted March 5, 2002 I always thought that I was pretty smart, but how in the ... do you work the speaker posts on these things. When I push in on the button, it covers the hole. With the button out the wire is not trapped. I am going to put two pair of 5 ways on it tomorrow, but now I just have the wires clamped on with some large alligator clips. Jim Norvell Quote Link to comment Share on other sites More sharing options...
J M O N Posted March 12, 2002 Share Posted March 12, 2002 It sounds like the humming problem people are having is from a ground loop. This is not a problem with the speaker. Speakers don't hum. Quote Link to comment Share on other sites More sharing options...
CarlV Posted March 13, 2002 Author Share Posted March 13, 2002 Update: It was my Peavey CS800 that was causing the hum/static. I recently scored big time on a Hafler XL600 for $200. and guess what no hum. This amp along with my JBL 4638/SVS 16-46 combo rock & rolls big time. I'm afraid I may cause damage to my room. I plan on moving my system downstairs into my family room. I will get some pics up this weekend. Recent upgrades: JBL 4638 SVS 16-46 HK Signature 2000 pre amp Acurus A200X5 Hafler XL600 Quote Link to comment Share on other sites More sharing options...
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