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Im getting a pair of BTL's just wondering if anyone has any experience with running their amps at .7?
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T20001bd At .7 Ohm Safe Or Not
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#3
fritosaregood 
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Posted 01 April 2009 - 08:10 PM
cnate777, on Apr 1 2009, 07:08 PM, said:
Im getting a pair of BTL's just wondering if anyone has any experience with running their amps at .7?
Not had experience with the amp. but impedence rise should bring you above an ohm so youll be ok with that
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#4
banginAltima
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Posted 01 April 2009 - 08:15 PM
Yep, you'll be fine. By the time you get rise you will be above 1 ohm.
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#5
lowblueranger
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Posted 02 April 2009 - 04:39 AM
What size BTL's you getting? That amp is sweet- I have one too and love it- wouldn't sell it for anything. I'm sure it will be fine at that ohm.
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#6
Nightshade
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Posted 02 April 2009 - 10:10 AM
cnate777, on Apr 1 2009, 11:08 PM, said:
Im getting a pair of BTL's just wondering if anyone has any experience with running their amps at .7?
Fi doesn't even make a coil configuration that you can get an amp down to .7 ohms. If your going by the Re then yes it's .7 but that's just the actual resistance, it's really a 1 ohm coil not a .7 ohm one.
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SPL Setup:
1 Sundown Audio Nightshade 15
2 Sundown Audio saz2000d's @ .5 ohms strapped
1 Alpine 9831
152.6 on the dash sealed @ 52hz
155.2 in the kick @ 54hz
NSPL World Record Holder in Car 3601-UP Watt Class
NSPL World Record Holder in Car Hardcore
2009 NSPL World Champion in Car 3601-Up Watt Class
2009 NSPL World Champion in Car Hardcore
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Bassrace/Daily Setup:
2 Sundown Audio Nightshade 15's
2 Sundown Audio saz2000d's each @ .5 ohms
Bassrace 139.9 and 149.9
PM me for affordable box designs
#7
sicweasel
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Posted 02 April 2009 - 10:14 AM
.7 ive done much worse to those amps lol
and still have all 3 working fine
and still have all 3 working fine
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#8
Eric B
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Posted 02 April 2009 - 10:18 AM
Nightshade, on Apr 2 2009, 11:10 AM, said:
Fi doesn't even make a coil configuration that you can get an amp down to .7 ohms. If your going by the Re then yes it's .7 but that's just the actual resistance, it's really a 1 ohm coil not a .7 ohm one.
It is actually a .7ohm coil wit a 1ohm name because after rise it should be there at 1ohm, I mean it says .7ohm on the site for a reason..
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#9
Nightshade
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Posted 02 April 2009 - 10:42 AM
Eric B, on Apr 2 2009, 01:18 PM, said:
It is actually a .7ohm coil wit a 1ohm name because after rise it should be there at 1ohm, I mean it says .7ohm on the site for a reason..
Actually my btl that I had read 1.3 ohms. With exactly .4 ohms of resistance in my leads that made the coil .9 ohms. I said the same thing as you anyway it is a .7 ohm actual resistance but it's a 1 ohm coil by manufacturer standards. The Nightshades are the same exact way, they are .7's, but Jacob calls them a 1 ohm coil.
2001 Ford Focus ZX3
SPL Setup:
1 Sundown Audio Nightshade 15
2 Sundown Audio saz2000d's @ .5 ohms strapped
1 Alpine 9831
152.6 on the dash sealed @ 52hz
155.2 in the kick @ 54hz
NSPL World Record Holder in Car 3601-UP Watt Class
NSPL World Record Holder in Car Hardcore
2009 NSPL World Champion in Car 3601-Up Watt Class
2009 NSPL World Champion in Car Hardcore
2009 NSPL Car Points Champion
Bassrace/Daily Setup:
2 Sundown Audio Nightshade 15's
2 Sundown Audio saz2000d's each @ .5 ohms
Bassrace 139.9 and 149.9
PM me for affordable box designs
SPL Setup:
1 Sundown Audio Nightshade 15
2 Sundown Audio saz2000d's @ .5 ohms strapped
1 Alpine 9831
152.6 on the dash sealed @ 52hz
155.2 in the kick @ 54hz
NSPL World Record Holder in Car 3601-UP Watt Class
NSPL World Record Holder in Car Hardcore
2009 NSPL World Champion in Car 3601-Up Watt Class
2009 NSPL World Champion in Car Hardcore
2009 NSPL Car Points Champion
Bassrace/Daily Setup:
2 Sundown Audio Nightshade 15's
2 Sundown Audio saz2000d's each @ .5 ohms
Bassrace 139.9 and 149.9
PM me for affordable box designs
#10
E a r t h
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Posted 02 April 2009 - 11:36 AM
I think you guys are missing the point. coils are rated from the manufacture as a ''nominal'' load i.e. dual 1ohm coils or dual 2ohm coils, as you present that as a final load to the amplifier. the .7ohm or whatever you're dealing with is the ''DCR'' reading you get from using your DMM to check coil (s) resistance.
.7 is fine because it is a 1ohm nominal load you're presenting the amp
.7 is fine because it is a 1ohm nominal load you're presenting the amp
#11
cnate777
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Posted 02 April 2009 - 04:21 PM
I am gonna get the Fi 18" BTL's and running 2 T20001's...So get the dual 2's and Ill be fine?
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#12
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Posted 02 April 2009 - 04:26 PM
Yes its perfectly fine I have two D4 subs and they read .7ohm parallel after box rise its way above that.
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#14
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Posted 02 April 2009 - 06:27 PM
cnate777, on Apr 2 2009, 05:21 PM, said:
I am gonna get the Fi 18" BTL's and running 2 T20001's...So get the dual 2's and Ill be fine?
Perfect - I have 3 BTL dual 2's and 3 T2K's. They're all very happy.
You'll enjoy it.
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