I wanted to know, I have a JBL BP 300.1 amp. What would happen If i moved the lpf fequncy, would the sound et louder, bassier or what?, Thx
Replies (6)
2fastxd on 08/31/2004 19:38:17
By the way, I have 3 300wattRMS 12"s
2fastxd on 08/31/2004 19:38:45
Opps, Total of 300 WattsRms
asplundher on 08/31/2004 20:03:38
The tone of bass would move up or down (more/less midbass mainly). The more midbass would make it somewhat louder but not as clean in the sub area. Loudness would more controlled by the input gain, yet that part can be tricky also because more noise and clipping can be introduced as well. The main key is what sounds good to you!
The wattage, if correct, is right on the money.
Exactly what subs are you running?
2fastxd on 08/31/2004 20:37:43
im running 3 lightning audio 12" subs, each is 100rms, 500watt peak, when my trunk is closed, it rattles alot and i dont fell that much bass at all, i want to feel the bass outside.
2fastxd on 08/31/2004 20:42:18
Something else, Im running the amp on half gain so all 3 subs are probly getting 150watts rms, should i raise it all the way to 300watts rms, the max rms all the subs can go for i dont start clipping
swez on 08/31/2004 21:57:48
There's a DIY article on tweaking bass for you to read. It will help get the most from your amp by gain management. It applies to bass and full range amping as well.
http://www.clubknowledge.com/Car_Audio_FAQ/?t3
A 300 watt bass system can make some noise if efficient subs are used and the enclosure design is also ported. Yes, you can move the LPF trimmer up a tad to 100 or even 120 Hz. But the low bass will begin to go more middy in sound and maybe a bit more punch. Why? Woofers tend to be more efficient with higher bass notes as the subs impedance drops above Fs.
Swez
Replies (6)
2fastxd on 08/31/2004 19:38:17
By the way, I have 3 300wattRMS 12"s
2fastxd on 08/31/2004 19:38:45
Opps, Total of 300 WattsRms
asplundher on 08/31/2004 20:03:38
The tone of bass would move up or down (more/less midbass mainly). The more midbass would make it somewhat louder but not as clean in the sub area. Loudness would more controlled by the input gain, yet that part can be tricky also because more noise and clipping can be introduced as well. The main key is what sounds good to you!
The wattage, if correct, is right on the money.
Exactly what subs are you running?
2fastxd on 08/31/2004 20:37:43
im running 3 lightning audio 12" subs, each is 100rms, 500watt peak, when my trunk is closed, it rattles alot and i dont fell that much bass at all, i want to feel the bass outside.
2fastxd on 08/31/2004 20:42:18
Something else, Im running the amp on half gain so all 3 subs are probly getting 150watts rms, should i raise it all the way to 300watts rms, the max rms all the subs can go for i dont start clipping
swez on 08/31/2004 21:57:48
There's a DIY article on tweaking bass for you to read. It will help get the most from your amp by gain management. It applies to bass and full range amping as well.
http://www.clubknowledge.com/Car_Audio_FAQ/?t3
A 300 watt bass system can make some noise if efficient subs are used and the enclosure design is also ported. Yes, you can move the LPF trimmer up a tad to 100 or even 120 Hz. But the low bass will begin to go more middy in sound and maybe a bit more punch. Why? Woofers tend to be more efficient with higher bass notes as the subs impedance drops above Fs.
Swez
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