need stereo advice
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=47103
Printed Date: June 17, 2024 at 10:57 PM
Topic: need stereo advice
Posted By: dtwizzy
Subject: need stereo advice
Date Posted: January 06, 2005 at 11:09 PM
where to start? first off all what amp do u recommend for 2 10" Infinity 1000(250rms) subs? list some examples if possible... i need something that is able to push them good, but not to expensive, just something that meets the max output. what is the min rms or watts i should be looking for in an amp? secondly.......i got two 6.5" infinity 6000cs component speakers 270w (with x-overs, and tweeters), as well as 2 6x9" 3 way infinity 300w(100rms) speakers, and i have a 200 w hinfonics amp........what should i run though the amp? both or just one, or should i run one through the amp and the other though the deck (deck is 50wx4), which one through which? thanx
Replies:
Posted By: wheelerdr
Date Posted: January 06, 2005 at 11:22 PM
use the Infinity Reference 610A mono amp it will give you about 600 rms at 2 ohm. 299.00 run these 2 subs in parallel running both + to the + on the amp and both - to the - on the amp this will produce a 2 ohm load Infinity Reference 750A 111 X4 for 299 or the Infinity Reference 752A 142 X 2 for 150.00 and run this to your fronts and your rears with your deck. this amp is better for your budget but I would chill out some more for the 4 ch. -------------
Posted By: dtwizzy
Date Posted: January 06, 2005 at 11:31 PM
how about rockford fosgate 451s? i have an offer for it 115W x 2 Car Amplifier 115 watts RMS x 2 at 4 ohms 225 watts RMS x 2 at 2 ohms 450 watts RMS x 1 bridged output at 4 ohms Stereo or bridged mono output 4-ohm stable in bridged mode Tri-Way capable
Posted By: esmith69
Date Posted: January 07, 2005 at 12:05 AM
which model are these subs? cuz that affects what amp you'd want to be looking at (particularly if they are DVC or have voice coils other than the standard 4 ohms). also, do you have a model number for the hifonics amp? ------------- Ethan
-----
"Patience, persistence, and perspiration make an unbeatable combination for success"
Donate to the12volt.com
Posted By: dtwizzy
Date Posted: January 07, 2005 at 6:11 PM
as for the subs, one is 1030w and the other 1020w, but i don't think there is a big difference there, one is newer model, they both got the same specs...
Power Handling, RMS: 250 Watts
Power Handling, Peak: 1000 Watts
Sensitivity: 90dB
Frequency Response (”¾3dB): 25Hz - 250Hz
Mounting Depth: 5-3/4"
Impedance: 4 Ohms
Dual voice coil : No
the Hinfonics amp is Gemini(model)- 4 channel.....i can't get the specs on it, but i don't think it matters that much, i think its good enough to push the 6.5" component system speakers or the 6x9"......as long as something is amplifying the speakers, its all good....but i dunno which are better to run though the amp, the fronts or the rears and which though the deck
Posted By: esmith69
Date Posted: January 07, 2005 at 6:36 PM
the problem with that particular fosgate amp is that it's only stable down to 4 ohms when bridged. Since you have two subs, this is what you'd be doing. You'd have to wire them up in just plain old stereo, which means each sub would get only 115W RMS. Still a lot of power but probably not enough for what you're looking for. With that infinity amp, since it's 2-ohm stable, you'd wire the two speakers in parallel, and get 300 watts RMS per sub. Why not power the fronts and the rears from the hifonics amp? 2 channels for the fronts and 2 channels for the rears. Even if it doesn't put out a lot of power, it'll still be more than the amp that's built into the head unit. ------------- Ethan
-----
"Patience, persistence, and perspiration make an unbeatable combination for success"
Donate to the12volt.com
Posted By: Drewt
Date Posted: January 07, 2005 at 7:25 PM
Look for an Alpine MRD-M301 amp. I have the M501 model driving my DVC kappa, and It's great. Don't pay retail for it though, us froogle! -Drew
Posted By: dtwizzy
Date Posted: January 07, 2005 at 9:30 PM
now when i look for an amp....do i look for 2 channel because its two subs or it doesn't matter??
also, what specs do I look for such as the
RMS Power at 2 Ohms .....how many watts min?
RMS Power at 4 Ohms
and how does brigded power work, ie.what needs to be done, what is required....(i know its a stupid question, but hey i'm a newbie at this)
Posted By: esmith69
Date Posted: January 07, 2005 at 9:38 PM
I'm not very good at explaining concepts, so I suggest you check out this site for more of the background info and concepts. Series/parallel impedence Amplifier Bridging Speaker ratings ------------- Ethan
-----
"Patience, persistence, and perspiration make an unbeatable combination for success"
Donate to the12volt.com
Posted By: dtwizzy
Date Posted: January 07, 2005 at 9:52 PM
i just though about it for a sec....and i guess i answered my own questions 'whether it matters to get one or two or so on channel amp'
if i get the mono, then like u said i can run parallel, both the +of the subs to the single + on the amp and same for the -
if it was two then i can connect the +from one sub to the 1st +on the amp and the other + from the other sub to the other + 2nd on the amp.......so i guess i'm starting to graps some knowledge.....this is obvious to you guys, but to me its something new
Posted By: dtwizzy
Date Posted: January 11, 2005 at 4:41 PM
how about SONY XM-DS1600P5 to push the 2 10' subs?
1600W max power
500W x 1 RMS into 4 ohms, 20Hz - 100Hz at 0.2% THD
900W x 1 RMS into 2 ohms, 20Hz - 100Hz at 0.6% THD
Class D
Subsonic filter
Remote subwoofer level control
Variable 50-300Hz low pass filter
40Hz EQ boost
Line level through-put
MOSFET output stage & power supply
or
MTX 421D
Power Handling: 210Wt x 1 at 4 ohms, 420Wt x 1 at 2 ohms
Adaptive Class D Technology
Variable 40-200 Hz low-pass crossover
PWM MOSFET switching power supply
Thunder EQ bass boost (0-18 dB at 40 Hz)
|