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Author after a new amp, but what 1?
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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   21st Sep 04 at 21:01   View User's Profile U2U Member Reply With Quote
i looking 2 get a new amp but not 2 sure which 1 to go 4?
most prob's 1 of these:

1st:Alpine MRD-M1001
http://caraudiosecurity.com/catalog/product_info.php+cPath+3_92+products_id+2845

2nd: Directed Electronics: 1500d Amplifier
http://caraudiosecurity.com/catalog/product_info.php+cPath+3_92+products_id+2527

3rd:Rockford Fosgate: Power 1501bd Amplifier http://caraudiosecurity.com/catalog/product_info.php+cPath+3_92+products_id+1097


what u think of these amps?
o0MattE0o
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Registered: 3rd May 04
Location: West Drayton, West London
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21st Sep 04 at 21:14   View User's Profile U2U Member Reply With Quote
depends on what they are running
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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21st Sep 04 at 21:18   View User's Profile U2U Member Reply With Quote
2 Audiobahn: AWC12T - 12" subwoofer,
http://caraudiosecurity.com/catalog/product_info.php+cPath+60_64_113+products_id+2576





[Edited on 21-09-2004 by Sach]
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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22nd Sep 04 at 16:49   View User's Profile U2U Member Reply With Quote
any 1 know which 1s the better amp?
kev_corsa
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Registered: 7th Nov 02
Location: Newport, Uni in Bristol
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22nd Sep 04 at 18:45   View User's Profile U2U Member Reply With Quote
i love thealpine gear personally
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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22nd Sep 04 at 18:57   View User's Profile U2U Member Reply With Quote
thats what i was thinking of getting


[Edited on 22-09-2004 by Sach]
AdiSRI
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Registered: 1st May 02
Location: Berkshire
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22nd Sep 04 at 20:09   View User's Profile U2U Member Reply With Quote
The alpine is the worst amp of the 3, it looks nicer but thats it.

Of the 3 id get the rockie one, a far superior amp.
kev_corsa
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Registered: 7th Nov 02
Location: Newport, Uni in Bristol
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22nd Sep 04 at 20:54   View User's Profile U2U Member Reply With Quote
reasons?
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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23rd Sep 04 at 09:27   View User's Profile U2U Member Reply With Quote
yea m8 y is that?
AdiSRI
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Registered: 1st May 02
Location: Berkshire
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23rd Sep 04 at 11:11   View User's Profile U2U Member Reply With Quote
quality of the internals, power output.....

Its sound quality that is not good with alpine stuff, far too harsh.

The rockie is a quality amp, designed to run much more power than the alpine and would IMO sound better.

Ask in any high quality car audio place , they wont reccomend alpine stuff.

I swapped my alpine 4 channel for an audison 2 channel and the sound now is sooo much better its unreal, anyone whos heard it can attest to that.

Im still running a alpine MRD-M300 mono amp and its garbage tbh. Its gutless and really struggles to run my sub, (as you know kev!!) and as soon as i can afford a audison mono its gonna get changed aswell.

Its all IMO tho, if you want the alpine go for it your choice at the end of the day, and you wont be dissapointed with the looks of it, alpines gear looks very nice, its just the sound thats the problem
kev_corsa
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Registered: 7th Nov 02
Location: Newport, Uni in Bristol
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23rd Sep 04 at 11:48   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by AdiSRI
Im still running a alpine MRD-M300 mono amp and its garbage tbh. Its gutless and really struggles to run my sub, (as you know kev!!) and as soon as i can afford a audison mono its gonna get changed aswell.



yeh, i do agree with you on this point. Although, setting up is the key and i must admit they are a bitch to do. But when they are set up right they do sound very nice.

As for the electronics part of it i dont know how you say they are not very good quality. The MOSFET power supply is really good - when you get a nice big bass note, it has a very fast rise and fall times allowing it to pull current when and how the music wants it to plus they use nice big capacitors to aid this further. The transformer that they use is also a quality component, they are very low current leakage even when loads of power is involved. The output transistors that they use have a very high efficiency which allows the amp to switch over and process both half cycles of the waveform very well. And also, as they are a PURE digital amp and not a HYBRID (which many are) they do away with the preamplifier stage and therefore they are a lot more accurate on pulse timing. As soon as the signal is fed into the amp, is its processed by the A/D converter stage immediatly, processed and amplified (in one stage), and then processed by the D/A converter right at the output.

So, as for the quality of the internals, i must disagree with you.
AdiSRI
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23rd Sep 04 at 12:21   View User's Profile U2U Member Reply With Quote
i have read alpines hype on there parts aswell, but you must remember there amps are designed for japanese music....

Have a listen to some and you will see the differences with ours lol!

Alpine monos are ok just a bit underpowered for their rating, why they insist on calling it a M300 when it wil nigh on never give out 300 is misleading.
Its output really is between 150 -250 rms max.

Like wise the 1000w rms will never give out 1000wrms as no ones car has that perfect powersupply that can keep a steady 14.4v.

Good quality makes JL etc.. list their power outputs at real world 12- 13.6 v that cars can attain.

The main problem with alpine is in their full range amps, due entirely to the music they are designed for not a lack of know how on alpines part. Their ams are very scratchy, with extremely harsh trebble when compared with many other manufacturers.

All these things together are what are making me reccomend the others.

I WONT say alpine are bad amps because there not, but the post was a question as to which of the 3 is best, and i can honestly say the best one is NOT the alpine.
Trotty
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Registered: 22nd Feb 01
Location: Bristol
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23rd Sep 04 at 12:30   View User's Profile U2U Member Reply With Quote
JL baby!
LukeGSi
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Registered: 9th Dec 03
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23rd Sep 04 at 12:56   View User's Profile U2U Member Reply With Quote
Buy my Hollywood
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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23rd Sep 04 at 14:20   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by LukeGSi
Buy my Hollywood


whats the spec?
AdiSRI
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Location: Berkshire
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23rd Sep 04 at 16:02   View User's Profile U2U Member Reply With Quote
not as good as the ones your looking at

[Edited on 23-09-2004 by AdiSRI]
Sach
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Location: West Finchley, Greater London
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23rd Sep 04 at 18:09   View User's Profile U2U Member Reply With Quote
ok thanks m8, what would u say other then the 3 i have looked at, r good amps?
AdiSRI
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Location: Berkshire
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24th Sep 04 at 10:36   View User's Profile U2U Member Reply With Quote
audison LRx 1.400, JL 500/1000.1 , some of the better JBL monos are good, theres quite a lot.

But the rockie is still best value for money.
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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24th Sep 04 at 11:32   View User's Profile U2U Member Reply With Quote
thanks m8, also where would b a good place 2 buy them from.
AdiSRI
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Location: Berkshire
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24th Sep 04 at 12:20   View User's Profile U2U Member Reply With Quote
car audio direct is my fav online supplier, they sell all the quality gear.

http://www.caraudiodirect.com/
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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24th Sep 04 at 13:42   View User's Profile U2U Member Reply With Quote
nice 1 m8
corsa_x_15
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Registered: 28th May 01
Location: !!! LuToN !!!
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24th Sep 04 at 18:10   View User's Profile U2U Member Reply With Quote
id go for directed anyday....their stuff thumps...belive me !!
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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24th Sep 04 at 21:39   View User's Profile U2U Member Reply With Quote
what u got m8?
corsa_x_15
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Registered: 28th May 01
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29th Sep 04 at 20:13   View User's Profile U2U Member Reply With Quote
i got 2 orion 15" subs.....and an orion 1200d amp to match...mines hittin 151db as it has been tested at my local I.C.E shop

orion is the same make as directed by the way !!

il get sum pics up asap m8

chris
Sach
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Registered: 20th May 03
Location: West Finchley, Greater London
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30th Sep 04 at 18:32   View User's Profile U2U Member Reply With Quote
nice 1 m8

 
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