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Lightning Audio b4-250.2 worth a damn?


Jessica

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http://www.sonicelectronix.com/item_8803_Lightning-Audio-Bolt-B4.250.2.html

Amp has 2 20A fuses and is rated at 85X2. a guy at work has one and its pretty hefty. Just wondering if it is any good or does rated. if it is, I think it would be a good choice to hide under a seat to run to my midbass speakers.

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All I know is it was or still is part of RF but not sure if they still own it

XS Power D5100, 2 D2700s, & 2 D975s

MechMan 220a Alt

DC 5K

Kicker 650.4

2 12 Ascendant Audio Mayhem's

Pioneer DEH-P7200HD

Rockford Fosgate 3sity.1

Build log: https://www.stevemeadedesigns.com/board/topic/166792-88-nissan-maxima-trunk-build/#entry2430899

https://www.stevemeadedesigns.com/board/topic/191439-lexus-is300-fi-crescendo-shca-rf-pics/

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La is not rf anymore I would not waste my time with it

But I dunno the specs nor have I heard it so I'm just speculating here its lighting audio not known for quality

Thanks Alpine now I know

XS Power D5100, 2 D2700s, & 2 D975s

MechMan 220a Alt

DC 5K

Kicker 650.4

2 12 Ascendant Audio Mayhem's

Pioneer DEH-P7200HD

Rockford Fosgate 3sity.1

Build log: https://www.stevemeadedesigns.com/board/topic/166792-88-nissan-maxima-trunk-build/#entry2430899

https://www.stevemeadedesigns.com/board/topic/191439-lexus-is300-fi-crescendo-shca-rf-pics/

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Ok, so i bought the amp, got a good price on it. And i have a picture of the guts. It looks super clean inside and has no smell to it. For those of you you have a lot of experience with amp internals would you say this looks like a well built amp and do you think it's capable of 80X2 @ 4ohms? I will clamp it as soon as is convenient and tell you my findings. (maybe a couple of weeks)

101_1481.jpg

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  • 5 weeks later...

i do have this amp wired at 8ohm on 2 12" fosgate p2d2s and this little amp really actually does make them hit pretty hard. it definatly has fosgate quality and trust me i know fosgate quality as i am a die hard RF fanatic and own only thier products other than one mtx sub i paid 5 for. amp is rated to do 85x2@4ohm 125x2@2ohm or 250x1@4ohm brigded rms. so at 8ohm bridged i should be getting around 150rms on my subs and it seems like there is more power than that. id say this amp is definatly worth it for the right price. if you would like i can try to post a pic of an old school rf amp so you can see how the quality of this amp compare to what they used to build.

Steve Brewer

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