fixing up my system
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=10969
Printed Date: August 09, 2025 at 3:19 PM
Topic: fixing up my system
Posted By: carguy411
Subject: fixing up my system
Date Posted: March 16, 2003 at 8:44 AM
ok i have 2 audiobahn 10" subs that are rated about 300-500 watts each,and a us acoustic mono amp(usx800d)pushing them, now im not getting it to hit the way i like so i was thinking 1 of 2 things. if i run just a single amp with that single sub will that give me more bass and clarity, or should i still use 2 subs with 2 diffent amps or 1 bigger amp, im just worried about my electrical system,i dont want to upgrade the altenator casue its lested but i have a yellow top in there now with the following equipment
cva1003
xm radio
6diskc changer
in dash dvd player
whelen strobe light pack
real hid head lights
now most of it is not on all at once but just letting you know. i have a 1 farad cap with my system and really have no problems but let me know what you guys think
thanks
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Replies:
Posted By: bberman1
Date Posted: March 16, 2003 at 9:12 AM
what 's the model # on your subs ?
Posted By: carguy411
Date Posted: March 16, 2003 at 11:08 AM
i dont really remembe i think something like 1000ew or smething
Posted By: bberman1
Date Posted: March 16, 2003 at 12:03 PM
I think we have talked about these subs before https://www.the12volt.com/installbay/forum_posts.asp?tid=3893&KW=1000eu they are the same as these https://www.sounddomain.com/sku/ABNAW1000X only difference is one is American and one is European. Each one is 600 watts rms and has dual 4 ohm voice coils. Now you can either run 2 of them on 1 amp and get an amp that puts out 1200 watts RMS @ 1 ohm. Or 2 separate amps each one must put out 600 watts rms @ 2 ohms. I would suggest that you go with one amp such as the Audiobahn A12001D. Now as far as power goes with 1200 watts rms + all the other things you have you should upgrade the charging system. But with your 800 watt amp do the lights dim? Also you said you don’t like the way it sounds what’s wrong with it and what type and size enclosure are they in?
Posted By: carguy411
Date Posted: March 16, 2003 at 3:18 PM
i have a 1 farad cap on the system and the lights dont dim but the lights on my hed unit do. its anapine cva 1003 and when put the screen up it drawsa lot. i just doesnt hit hard enough. ihave them in a sealed fiberglass/mdf enclosure about 1cuft for ech i different chambers. i dont want to upgradfe the charging system becasue its a lease butif i put 2 caps just for saftey? i really wt to redo the system maybe 1 sub and one amp both that are really good and that will hit hard and suggestions please let me know
thanks
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Posted By: dragonrage
Date Posted: March 16, 2003 at 3:26 PM
1ft^3 isn't all that much. and if you're not getting enough current, get a new alternator. Farads won't magically fix everything, they only fix very slight dimming problems.
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2009 Pontiac G8 in planning stage
HU: ?
Speakers: ?
Amps: ?
Posted By: bberman1
Date Posted: March 16, 2003 at 3:40 PM
The enclosure is the correct size for the subs. If you run a direct line from the battery to the head like we talked about before it should clean up that dimming. I would suggest that you upgrade your amplifiers either go with one 1200 watt rms @ 1ohm or 2 600 watt rms @ 2ohm amps. But if you’re looking for more bass and clarity you should consider upgrading your subs.
Posted By: carguy411
Date Posted: March 16, 2003 at 5:06 PM
im gonna upgrade the wire from the hu to the battery sson as it gets nice out but that wont drain the batteryto much right>>>
also what do u think about upgrading the subs i was thiking getting 1 ggod subs and one good amp
have any suggestions that you delt with or know of
please let me know thanks
Posted By: bberman1
Date Posted: March 16, 2003 at 5:11 PM
I think you could defiantly go for some better subs. Those are Audiobahns entry level sub. But how do you like them as far as sq and SPL? But defiantly run that new cable.
Posted By: carguy411
Date Posted: March 16, 2003 at 11:26 PM
there alright subs
but i did some thinking if i remake some mdf boxes and buy another 1 farad cap and another matching amp, 1 sub per amp, u think that will make a drematic difference??
i do installs and stuff on the side for fun so having th greates sounding system is not that big of a deal i do it for the acomplishment plus its not always in my truck becasue of work and i have to carry stuff around ,but anywa what do you think of tht idea
or shuould i scrap the whole system?
let me know
Posted By: bberman1
Date Posted: March 17, 2003 at 9:05 AM
If you put the proper power on them then they will probably sound much better. As far as scrapping the whole system that’s up to you. You can either invest more money into this one or upgrade to a new set up. You have to make the decision. But if I was to get new amps I would get some good subs to match. Just curious what are you running for your mids and highs and what powers them?
Posted By: carguy411
Date Posted: March 17, 2003 at 4:46 PM
i have the stock fronts and a pair of pioneer 6x9's for the rear of the radio.
theres not much storage room for aditional amps for the fronts and rears thats y i never redid them, plus i use my truck alot to carry equipment around for working on the weekend DJing so the system is always going in and out of the truck, and if i put amps for the interiors then when i take them out i have no radio
i think im going to buy another us acoustic amp and run 1 amp for each sub
you thinks thats powerful enough right?????
i think it should be fine
Posted By: bberman1
Date Posted: March 17, 2003 at 6:46 PM
what's the rms @ 2 ohms?
Posted By: carguy411
Date Posted: March 17, 2003 at 10:58 PM
Amplifier Type: Mono
RMS Power: 400W x 1 @ 4 ohms
Bridged RMS Power: 600W x 1 @ 2 ohms
THD at Rated RMS Power: < 0.5%
Speaker Level Inputs: No
Preamp Outputs: Yes
Built-In Crossovers: LP
Bass Boost: n/a
Frequency Response: n/a
Channel Separation: n/a
Signal to Noise Ratio: > 80 dB
Fuse Rating: 2 x 25 amps
what u think 1 of these to each sub should do it??
and i can wire those speakers to 2 ohm right?
cause now there wired at 4 ohm but thats using both of them on the same amp
let me know thanks
Posted By: bberman1
Date Posted: March 18, 2003 at 9:50 AM
I would defiantly go with one for each amp that will give you the proper power rating per sub. Should hit much cleaner not to mention a little louder. If you currently have them wired into a 4 ohm load that means that each sub is only getting 200 watts and you probably get allot of distortion when you turn volume. As far as the enclosure goes sounds like you have the correct volume. Trust me add a second amp and you will get the sound you’re looking for.
Posted By: carguy411
Date Posted: March 18, 2003 at 4:28 PM
ok then tats what im gonna do
2 other questions
u think that my charging system will hold up,should i add a second cap or get a bigger cap just to be on the safe side?
also did you see my other post about the aluminum apmp rack
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i was thinking of making a amp rack out of aluminum square tubing. and welding it together , i figured its strong and light weight,. i want to builld a whole frame out of it to house the subs,amps and other equipment, and then cover it with aluminum sheets ,bondo sand and paint it now i dont know if i should build a box out of mdf and then bolt it to the frame or just build it out of amumiunum to keep it all light weight, what you guys think of this please letme know thanks also i want to and a little motorization
any one know wher i can get some good actuators for a low price
some places have them for like 200
"
please let me know
Posted By: bberman1
Date Posted: March 18, 2003 at 4:39 PM
Your 2 sub amps at max output will use 86 amps (you will probably never come near that) As far as upgrading to a new alternator I know you have a lease so I would add the 2nd amp and see how things go. However I would recommend that get a hi output alternator. As far as capacitors they are not a band aid and will not solve your power problems. But I would suggest 1 farad for each sub amp. For your amp rack I'm not that good at custom fabrication beyond MDF so can’t help you there although I would love to learn. Might want to make that post in the fiberglass forum on the12volt instead of car audio might have better luck there.
Posted By: carguy411
Date Posted: March 18, 2003 at 11:27 PM
ok thanks for your help
i think im gonna stay with my 2 subs and that 1 amp i have already and add a second amp
im also going to put in 2 caps and se how things work out i think it should be fine i hope
if i do have to get an altenator how much would it cost for the altenator then the installation
you think that when i return the car they will notice??
thanks for you help
Posted By: bberman1
Date Posted: March 19, 2003 at 9:32 AM
The alternator will cost around $300 and installation should be about an hour labor at a mechanic probably about $50. And they will not notice when you turn the lease in. however I would pull it out and try to sell it rather than give it to them. But like I said before add that 2nd amp and see how things go.
Posted By: carguy411
Date Posted: March 19, 2003 at 4:11 PM
ok thanks alot for your helphopefully soo i will start
thanks
Posted By: carguy411
Date Posted: March 23, 2003 at 9:43 AM
ok i thought of another option
if i were to gt this us acoustics amp USX1000D
instead of getting another amp that i have and running 2 of the same amps to1 to each sub.
if i do it this way with 1 amp to 2 subs like the way i had it but with this new amp is it outputting the same power and is it less current draw or am i bette just going with the 2 amps??????
heres the specs on the bigger mono amp
thanks
Amplifier Type: Mono
RMS Power: 550W x 1 @ 4 ohms
Bridged RMS Power: 750W x 1 @ 2 ohms
THD at Rated RMS Power: < 0.5%
Speaker Level Inputs: Yes
Preamp Outputs: Yes
Built-In Crossovers: LP
Bass Boost: n/a
Frequency Response: n/a
Channel Separation: n/a
Signal to Noise Ratio: > 80 dB
Fuse Rating: 2 x 40 amps
Posted By: Big Purds
Date Posted: March 23, 2003 at 2:08 PM
I think that amp will be less of a draw than the 2 amps, and if you run a common chamber enclosure, running one amp is alot better...
as far as building the amprack and everything, that sounds pretty cool, but dont build the sub box out of aluminum or coat it with aluminum either...make sure the sub box is mdf or fiberglass...aluminum will give some crazy resonance...
I would also look at upgrading the subs as well...I personally dont find them very nice sounding and think you could do way better with a different sub as far as output is concerned as well...
and I would also ditch the caps...both of them...they will do more harm than good...
Posted By: carguy411
Date Posted: March 23, 2003 at 6:37 PM
i just got a my new magazine in the mail yesterday and i was looking at the new alipne 12 type r subs
you think 1 of those with either my 1 amp or another amp will sound better and hit harder than what i have now
what you guys think?
if im gona change my whole system instead of useing my old stuff i want to buy something good so im open to suggestions
please let me know
Posted By: carguy411
Date Posted: March 23, 2003 at 11:07 PM
ok heres my final thought
1-Alpine SWR-1221D 12" subSize 12"
Impedance 4 OHM + 4 OHM
Power Handling 1000 WATTS /300 WATTS RMS
Frequency Response Fs-1kHz
Sensitivity 87db
D.C. Coil Resistance (RE) 3.6
Inductaance (LE) 1kHz/20kHz 2.38mH/ 0.85mH
Free Air Resonance (Fs) 26Hz
Equivalent Stiffness (Vas) 66L
Qms/Qes/Qts 10.39/0.38/0.37
X max/ X peak 12.9mm/ 25.8mm
Mechanical Excursion (P-P) 55mm
Gap/ Coil Height Hag/HVC 10mm/35.8mm
Cone Area (Sd) 467.59cm2
Diaphragm Material Kevlar Reinforced Pulp
Spider Material Nomex
Magnet Weight 89.4oz
Voice Coil Diameter 50mm
Recomended Sealed Box Volume 0.7-1.0 f 3
1-ALPINE MRD-M5900W MAX Power
500 watts RMS x 1 at 2 ohms
250 watts RMS x 1 at 4 ohms
MOSFET power supply and output stage
STAR Topology for cleaner sound
low-pass digital crossover, 30-200 Hz, 24 dB/octave
variable subsonic filter (15-50 Hz in 5 Hz steps)
parametric EQ variable from 30-160 Hz
Bass Compensator enhances low-end definition
top-mounted digital control center with cover
time correction 0-10 milliseconds in 0.5ms steps
phase adjustment 0-180°
turn-on delay
digital readout
detachable front cover
blue power LED
preamp outputs
extra-large gold-plated terminals
12-3/8"W x 2-11/16"H x 11-1/2"D (10"D without front cover)
1-year warranty
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what do you guys think
think that will hit harder than the system i have in there now??
i think im gonna put it in a 1-cuft sealed box
please let me know what u think
thanks for all your help
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