Getting rid of JL HDs for... - DIYMA Car Audio Forum

19 Hours Ago	? #1
? DIYMA freshman Join Date: Mar 2012 Location: in NJ Posts: 38 Thanks: 8 Thanked 2 Times in 2 Posts	Car- 2009 accord Coupe exl v6 So I have to get rid of my JL audio HD amps now, found out they are the noise problem in my car. My one HD600.4 was bought from crutchfield about 4 months ago, the other 750.1 is 2 years old saved from my previous car. Crutchfield after hearing from JL about this rare noise occurence is going to honor a return for another piece of equipment.. The question is what do I get I loved all that efficient power. I am now limited in this accord to Class a.b's due to the fm modulation in a class D interfering with my FM reception. I want the car to function as if it were stock. Equipment I own and will be running... ms8 L6v2 midbass doors L3se being glassed in <30* sail panels L1pro1s being glassed in the a pillars on axis These amp changes are going to really set me back so new sub stage will be choosen later on. Helix A4 85x4-tweets off the ms8? 2 JL audio slash 300/4v3's, 150x2 75x4..150 on the l3se's due to low sensitivity? Other amps? So Im all ears on whatever your thoughts, has to be from Crutchfield and A/B class...
?

12 Hours Ago	? #4
? DIYMA Enthusiast Join Date: Apr 2010 Location: allentown, PA Posts: 2,349 Thanks: 6 Thanked 36 Times in 32 Posts	well if they are offering you cash, i'd get these - these will give you just as good a result, just as efficiant and its stephon mantz i mean come on. you can have the 4 channel for 550sh (wooferetc.com is what i hear is a good place to get them but you can jsut email stephon and he'll do the deal with you) Draconia-II Specifications Rated power is 150 watts x 4 into 4 ohm or 200w x 4 into 2 ohm. Bridged power is 250w x 2 into 8 ohm or 400w x 2 into 4 ohm. The pairs of channels are independently bridgeable. Two or four input configuration. Channels 1+2 feature 24dB per octave Linkwitz Riley High and Low Pass crossovers. Channels 1+2 can run in FLAT mode (Pre-amplifiers completely bypassed), High Pass, Low Pass or Bandpass. Channels 3+4 feature 24dB per octave Linkwitz Riley High and Low Pass crossovers. Channels 3+4 can run in FLAT mode (Pre-amplifiers completely bypassed), High Pass, Low Pass or Bandpass. Channels 3+4 in addition feature SUB MODE which introduces a 24dB per octave variable subsonic crossovers and a 40Hz constant Q equalizer. Level controls accommodate input levels up to 8.0v RMS. Pre-amplifiers utilize a fully isolated power supply for zero ground loops. Pre-amplifiers drive the main amplifiers in a fully balanced mode. Class D amplifiers utilize high-speed high current low gate charge MOSFETs. Fully regulated power supply delivers power independent of battery voltage. There are a total of thirteen regulated power supplies. The power supply utilizes six 110 amp MOSFETs in a source follower configuration for maximum bandwidth. Low ESR 105?C capacitors are used in the power supply. Very high efficiency owing to the smart power supply. Tiffany RCA's with Teflon inserts are used for ultimate quality and reliability. Made in the USA also, a matching Minotaur Specifications Rated power is 750 watts into 4 ohm or 1.3Kilowatt into 2 ohm. Two Minotaurs bridged deliver 1.5Kilowatt into 8 ohm or 2.6 Kilowatt into 4 ohm. One, two or four input configuration. Two line outputs, one in phase for parallel operation and one out of phase for bridged operation. Industry first 48 dB per octave Linkwitz Riley High Pass crossover 10Hz-100Hz Low Pass 24 dB per octave Linkwitz-Riley crossover 45Hz-230Hz Phase control variable 0 to 180 degrees. Five band equalizer with constant Q response set at ISO-frequencies 25 Hz, 31 Hz, 40 Hz, 50 Hz and 63 Hz. Preamplifier bypass for full range operation. Level control accommodates input levels up to 8.6v RMS. Pre-amplifiers utilize a fully isolated power supply for zero ground loops. Pre-amplifiers drive the main amplifiers in a fully balanced mode. Class D amplifier utilizes high-speed high current low gate charge MOSFETs. Fully regulated power supply delivers power independent of battery voltage. There are a total of seven regulated power supplies. The power supply utilizes eight 110 amp MOSFETs. Low ESR 105?C capacitors are used in the power supply. Very high efficiency owing to the smart power supply. Tiffany RCA's with Teflon inserts are used for ultimate quality and reliability. Made in the USA
	ZED audio, Hybrid Audio, FI audio, M-Audio, Custom carputer Quote: PS. Tell your boss to stop sending me pictures of his cock.
?

11 Hours Ago	? #5
? DIYMA freshman Join Date: Jan 2012 Location: Colombia - Florida Posts: 114 Thanks: 4 Thanked 2 Times in 2 Posts	Quote: I'm not believing that your are having FM issues based on your class D amp(s) I want to say other issues are occouring... That being said, I'd try another HD if you like them... Who listens to "FM" radio with such a nice system anyway? +1 I don?t think that is the problem, I will also try another HD amps. And the ZED are also class D so have to wait for a reply of the OP if that is OK.
?

11 Hours Ago	? #8
? DIYMA Enthusiast Join Date: Apr 2010 Location: allentown, PA Posts: 2,349 Thanks: 6 Thanked 36 Times in 32 Posts	Quote: Dreadnought has been discontinued that doesn't surprise me, it doesnt really have a nitch in the market at all lol but its gobs of power XD although two 2 ohm coils on a D2Ohm sub would be ideal for that amp :P far as his rare problem. idk, he might see no difference. but idk how he confirmed his issue so maybe he already tried a dif amp. for the clean class D power, the HD amp's are on top of the micro amp tower, but their are allot of new upstart lines from many big companys show some promise in a new generation that might yeild more options for top end micro class D amps in this power range. the market is trending in this way as well from what i've seen. after going through all current models in brands im faimluar with, i saw a dramitic surge in the average power of a 4 channel.
	ZED audio, Hybrid Audio, FI audio, M-Audio, Custom carputer Quote: PS. Tell your boss to stop sending me pictures of his cock. Last edited by eviling; 11 Hours Ago at 11:17 AM..
?

10 Hours Ago	? #9
? DIYMA freshman Join Date: Mar 2012 Location: in NJ Posts: 38 Thanks: 8 Thanked 2 Times in 2 Posts	Quote: I'm not believing that your are having FM issues based on your class D amp(s) I want to say other issues are occouring... That being said, I'd try another HD if you like them... Who listens to "FM" radio with such a nice system anyway? Ive posted whats been going on in the technical/advanced section... but heres the short version... I Have run the Hd line for a couple years now, yes I love the amp just as much as the next guy however... I have spent almost a year diagnosing this "noise" problem, by noise I mean CD, XM, Ipod are crystal clear sound great! however There are almost no audible FM stations, (XM subcription has run out Im not paying for it either...) I have rewired and rewired and rewired, dif path dif wires dif amp positions with no improvement... It was brought to my attention, class d uses FM modulation switching... EMI is released, and inducted upon the accords repeating antenna signal which is located in the back windshield.. I call JL and begin asking them about this theory I have, They answer with a sigh and tell me they are AWARE of this is a "rare occurance." I ask what cars these were installed, another sigh and reply newer honda accords mostly, some new BMWs too, basically cars utilizing the repeating antenna in the back windshield, an RCurley found this out with his HD amps on the site recently as well. They also inform me that as of recently HD amps have undergone revisions in the amps shielding to help with this problem...I have both... a revised HD600.4 and an older HD750.1 their revision did not help in my case. This is an isolated incident however none the less exists, so please refrain from your wrong, that cant be, HDs the best yada yada To answer, who listens to the radio with such a nice system... I guess I do, morning commutes especially, lol The JL tech said I guess you just cant listen to the radio, I didnt laugh and he was like ok bad joke my bad...But with such a nice system I should have the same function as before, I did not spend earned moneys to negate the use my radio, furthermore I am embarrassed explaining to my gf which I have anyway, how I work so hard on this system only to have absolutely no FM signal, and this includes friends or whoever else that may be in my car. Thank you for all the replies tho guys I think Im stuck with a non digital amp (ABclassGH) I want to avoid FM modulating amps for now, in this car... Space isnt so much a factor as I am going to build a false floor in the trunk, The only factor is that crutchfield may not give me the money back at almost a yr later of trading in JL amps(xd600/6 before the HD, The XD presented the same inaudible FM signals) I highly doubt they will give me a full refund which limits me TO CHOICES ON CRUTCHFIELDS site... Unless you guys think otherwise based on what has been discussed, had I known class d JL amps would interfere I would not have shopped at crutchfield.
?

10 Hours Ago	? #10
? DIYMA Enthusiast Join Date: Jun 2007 Location: Moore, Oklahoma Age: 37 Posts: 2,468 Thanks: 42 Thanked 37 Times in 36 Posts	Get you a pair of these... one to your mid/tweet, & bridge the other to your midbass. JBL GTO-504EZ 4-channel car amplifier ? 50 watts RMS x 4 at Crutchfield.com Then get you the mono... nevermind on the mono, it's class D. JBL GTO-501EZ Mono subwoofer amplifier ? 500 watts RMS x 1 at 2 ohms at Crutchfield.com Will Crutchfield reimburse any cash back to you?
	P01 - HD600/4(2) - HD750/1 - FR88EX - W10N4-200 - IB15A(2)
?

9 Hours Ago	? #11
? DIYMA freshman Join Date: Mar 2012 Location: in NJ Posts: 38 Thanks: 8 Thanked 2 Times in 2 Posts	Quote: Get you a pair of these... one to your mid/tweet, & bridge the other to your midbass. JBL GTO-504EZ 4-channel car amplifier ? 50 watts RMS x 4 at Crutchfield.com Then get you the mono... nevermind on the mono, it's class D. JBL GTO-501EZ Mono subwoofer amplifier ? 500 watts RMS x 1 at 2 ohms at Crutchfield.com Will Crutchfield reimburse any cash back to you? I dont know Monday morning we plan on resolving this issue as it gives me time to think about what I want to do and it lets crutchfield investigate this, as they have never heard of this before...(JL has already confirmed this problem tho) So Monday I plan on asking how theyd like to handle it, I will ask for some sort of discount or compensation if I do spend the money with them again, I have spent a couple hundred on rewiring in the past year alone. All the while spending more and more money on amplification at crutchfield.. What do you guys think should I ask for cash back, would they even be willing to give me cash back? Thanks for the suggestion on the jbls but they will be vastly underpowering the drivers, as they are rated at 14.4v.. I was thinking along the lines of 2 of these guys... JL Audio Slash 300/4v3 4-channel car amplifier ? 75 watts RMS x 4 at Crutchfield.com Ill bridge one of them either to the l3ses or l6s... L6s are a lot more sensitive then the L3s so I may compensate giving them the 150rms... this set up would also allow me some great filters... another brand on crutchfield is Helix I dont know much about them but they are pretty expensive and im still losing out on power I feel Budget-$1000 Size doesnt matter to me lol
	Last edited by LovesMusic; 9 Hours Ago at 12:36 PM..
?

9 Hours Ago	? #12
? DIYMA freshman Join Date: Apr 2012 Location: Columbus, OH Posts: 198 12V Company: Columbus Car Audio Position: 12v Product Specialist Thanks: 0 Thanked 16 Times in 14 Posts	it is a known problem that some of the HD amps have been known to cause radio interference in some vehicles.
?

The Following User Says Thank You to D-Bass For This Useful Post:

The Following User Says Thank You to quality_sound For This Useful Post:

6 Hours Ago	? #14
? DIYMA Enthusiast Join Date: Jun 2007 Location: Moore, Oklahoma Age: 37 Posts: 2,468 Thanks: 42 Thanked 37 Times in 36 Posts	I'd call JL to verify that it's just the HD's. If so, I'd try the XD's like QS recommended above. As far as Crutchfield goes, knowing their reputable customer service I'd bet they'd work with you on a partial refund. They don't have the largest selection of amplifiers.
	P01 - HD600/4(2) - HD750/1 - FR88EX - W10N4-200 - IB15A(2)
?

The Following User Says Thank You to t3sn4f2 For This Useful Post:

4 Hours Ago	? #20
? DIYMA Novice Join Date: Jan 2009 Location: latonia,ky Age: 50 Posts: 400 12V Company: radio randy Position: owner Thanks: 12 Thanked 25 Times in 24 Posts	A friend of mine had a similar problem with the rear mounted window antenna on a ford. After a lot trial & error he found an antenna that mounted across the top of the windshield and it fixed his problem.
?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

?

Source: http://www.diymobileaudio.com/forum/system-design-help-me-choose-equipment-my-car/139542-getting-rid-jl-hds.html

green bean casserole sweet potato recipes the sound of music celebration church new york auto show 2012 tulsa easter eggs