Question:
I have a 4 channel amp for a set of Rockfords but it still doesn't sound the way I want it too when I listen too R&B/HipHop.....it hits better for Rock music and not the bass I am looking for when I listen to my Hip Hop....I have already changed my box to a smaller one which helped alot but it still not that hard smooth hip hop bump I am looking for....does anyone understand where I am going with this?? help! WHAT CAN I DO?
Answers:
It almost sounds as though you have the variable crossover on the amplifier set too high. Try reducing the crossover point on the amplifier. If your amplifier does not have a variable crossover, check the owner's manual to see what the crossover is set at.
Next thing you want to do is to check the specifications for your subwoofers. A smaller box will give you a more 'punchy' bass, but will not give you the low end response you are looking for when you listen to rap / R & B.
Either check the manual for your subwoofers or go to the Rockford website and check to see what the 'optimal' enclosure is for your subwoofers and make certain you place them in a box with the proper amount of airspace.
Bottom line - your enclosure is typically what determines your freqency response. Too small a box, and you get too much 'punch' - too large a box and the response is horrible. Match the subwoofers to the proper box according to the manufacturers specifications.
Other Answers:
well you could be getting sound cancellation. but that depends on how you box is arranged and type of vehicle...a smaller box with give you tight bass..if you want smooth thump try a ported box...if your box is in a trunk or hatch back make sure its facing the rear..this will help alot....if its facing forward that is one way you get sound cancellation..im looking at the planet audio amps and im guessing you have the vortex..i do not know what model subs you got but you may need more power......also depending on your deck try using the loud button feature..this extendse the low and the high frequencies.this will also help... almost forgot..make sure you have your low pass cross over on...mo4st say set it to 80hz but i always go 50. this still hits hard but allows for more boom and less tight punchy bass...if you have a regular cab truck might as well give up...it is very hard to get good sound due to the small cabin space...here is my set up..pioneer deck, mtx amp pushing 300watts rms in one JL audio w3-v2 12" sub in a ported high ouput competition box....LOUD...oh make sure the subs are not out of phase. make sure they have + to + and - to - if one is backwards it will cancell each other out..and sound horrible...i hope i was able to help though with out knowing the vehicle, box possition ect. this is the best i could do....
4 channel amps are made for speakers, not subwoofers.
If the speakers your talkin about are subs you need a mono block amplifier these are made just for your subs 4 channel amps are for your inside speakers also try adjusting your eq and dont just turn everything all the way up trying to make it louder. Get it to where it sounds nice but theres not distortion then turn it up as to as loud as you listen to it and if you hear distortion back off on your settings until you get crisp clear everything from bass to treble it annoys me to no end when i hear people with radios turned up loud and it sounds like sht if your gonna turn it up at least let the music be clear
Planet Audio??
http://spkrbox1.spaces.msn.com/...... for real "sound" advice.
Your system won't mean squat without a well designed box to put your subs in. Some manufacturers have recommendations as to dimensions of various types of boxes. It is best to find someone who builds boxes if you go with something other than a sealed box.
You should always match up RMS (Root Mean Square) watts of Subs and amp per channel as well as impedance's(resistances).
If your amp is rated at 4Ω don't subject it to 2Ω, it will fry.
Here is the formula for subs in parallel:
Z = 1 / (1/sub1 + 1/sub2 + 1/sub3 + ....)
For series, just add them up (sub1 + sub2 + ...).
You can mix and match these equations to get the right impedance required by your amp.
Example: 4 subs @ 4Ω each. If I connect two in parallel and the other two in parallel and tie the two pairs in series, I would have a total impedance(resistance) of 4Ω. So to the amp, it's just one sub.
You should use a capacitor as well.
Recommend for every 500 watts MAX you use a .5 Farad cap
Example: 1000 watts MAX - 1 Farad cap
Try http://www.soundomain.com/shop you can find some really good deals, and this site is manufacturer certified. VERY IMPORTANT WHEN SHOPPING ON-LINE!!!
You will also need what's called a "line level converter" if your stock head unit doesn't have RCA outputs or your amp doesn't have high-level inputs.
If you like I can send you some plans for reference. My plans are for a 4-th order band pass bass box that holds two 12's. Also included are java calculators you can use to figure parallel and series values given Ω values.
Just e-mail me sparky3489@yahoo.com
My system
Blaupunkt TSw1200 subs with a Sony Xplōd XM2200GTX.
My amp is 1200 watts, subs are 600 watts each, cap is 1.2 Farad
SPL is about 112 db
Total cost(so far) = $410
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Answers:
It almost sounds as though you have the variable crossover on the amplifier set too high. Try reducing the crossover point on the amplifier. If your amplifier does not have a variable crossover, check the owner's manual to see what the crossover is set at.
Next thing you want to do is to check the specifications for your subwoofers. A smaller box will give you a more 'punchy' bass, but will not give you the low end response you are looking for when you listen to rap / R & B.
Either check the manual for your subwoofers or go to the Rockford website and check to see what the 'optimal' enclosure is for your subwoofers and make certain you place them in a box with the proper amount of airspace.
Bottom line - your enclosure is typically what determines your freqency response. Too small a box, and you get too much 'punch' - too large a box and the response is horrible. Match the subwoofers to the proper box according to the manufacturers specifications.
Other Answers:
well you could be getting sound cancellation. but that depends on how you box is arranged and type of vehicle...a smaller box with give you tight bass..if you want smooth thump try a ported box...if your box is in a trunk or hatch back make sure its facing the rear..this will help alot....if its facing forward that is one way you get sound cancellation..im looking at the planet audio amps and im guessing you have the vortex..i do not know what model subs you got but you may need more power......also depending on your deck try using the loud button feature..this extendse the low and the high frequencies.this will also help... almost forgot..make sure you have your low pass cross over on...mo4st say set it to 80hz but i always go 50. this still hits hard but allows for more boom and less tight punchy bass...if you have a regular cab truck might as well give up...it is very hard to get good sound due to the small cabin space...here is my set up..pioneer deck, mtx amp pushing 300watts rms in one JL audio w3-v2 12" sub in a ported high ouput competition box....LOUD...oh make sure the subs are not out of phase. make sure they have + to + and - to - if one is backwards it will cancell each other out..and sound horrible...i hope i was able to help though with out knowing the vehicle, box possition ect. this is the best i could do....
4 channel amps are made for speakers, not subwoofers.
If the speakers your talkin about are subs you need a mono block amplifier these are made just for your subs 4 channel amps are for your inside speakers also try adjusting your eq and dont just turn everything all the way up trying to make it louder. Get it to where it sounds nice but theres not distortion then turn it up as to as loud as you listen to it and if you hear distortion back off on your settings until you get crisp clear everything from bass to treble it annoys me to no end when i hear people with radios turned up loud and it sounds like sht if your gonna turn it up at least let the music be clear
Planet Audio??
http://spkrbox1.spaces.msn.com/...... for real "sound" advice.
Your system won't mean squat without a well designed box to put your subs in. Some manufacturers have recommendations as to dimensions of various types of boxes. It is best to find someone who builds boxes if you go with something other than a sealed box.
You should always match up RMS (Root Mean Square) watts of Subs and amp per channel as well as impedance's(resistances).
If your amp is rated at 4Ω don't subject it to 2Ω, it will fry.
Here is the formula for subs in parallel:
Z = 1 / (1/sub1 + 1/sub2 + 1/sub3 + ....)
For series, just add them up (sub1 + sub2 + ...).
You can mix and match these equations to get the right impedance required by your amp.
Example: 4 subs @ 4Ω each. If I connect two in parallel and the other two in parallel and tie the two pairs in series, I would have a total impedance(resistance) of 4Ω. So to the amp, it's just one sub.
You should use a capacitor as well.
Recommend for every 500 watts MAX you use a .5 Farad cap
Example: 1000 watts MAX - 1 Farad cap
Try http://www.soundomain.com/shop you can find some really good deals, and this site is manufacturer certified. VERY IMPORTANT WHEN SHOPPING ON-LINE!!!
You will also need what's called a "line level converter" if your stock head unit doesn't have RCA outputs or your amp doesn't have high-level inputs.
If you like I can send you some plans for reference. My plans are for a 4-th order band pass bass box that holds two 12's. Also included are java calculators you can use to figure parallel and series values given Ω values.
Just e-mail me sparky3489@yahoo.com
My system
Blaupunkt TSw1200 subs with a Sony Xplōd XM2200GTX.
My amp is 1200 watts, subs are 600 watts each, cap is 1.2 Farad
SPL is about 112 db
Total cost(so far) = $410