do i need amp for alpine SPS-171A ??

[heyitzsadgrl]

hey guys, this will be my first sound system.. so there's still lots to learn

i currently have
alpine cda-9847
(2) 10" alpine type r subs w/ box
alpine mrd m1000 class d amp
factory speakers

i plan on getting the
alpine SPS-171A component speakers to replace my front speakers.
i was wondering if i would need an amp for it.. if yes, which amp from alpine would you guys recommend?

thanks in advance!!

 

[J32a2OwnsU]

You dont need one.. But it would be louder if you got one!!!!!

 

[phuzzit]

i wouldnt say it would be louder - it would sound 100 times better if you did and would put less stress on your head unit.

 

[J32a2OwnsU]

i wouldnt say it would be louder - it would sound 100 times better if you did and would put less stress on your head unit.

Umm generally, most 4ch amps are going to push WAY more than 25W RMS (typical headunit output). So yes it will be louder. It may sound better, it may not, depends on what amp you buy really. Most HU now sound pretty damn good, when comparing them to amps, the THD is pretty damn close between the two.

 

[heyitzsadgrl]

oh ic. i might try it without an amp to see how it is..

also, if i do get an amp.. would a 2-channel amp be enough for the speakers or would i need a 4-channel? any recommendations on amps?? thanks in advance, again!

 

[J32a2OwnsU]

Try it without first. If its not loud/clear enough, then get an amp. I think you'll be happy with it without an amp. Depends also on how big your BOOM is....

If you are running 4 speakers you should get a 4ch amp.

HOWEVER, if you have 4 2ohm speakers, and the amp can handle a 2 Ohm load, you can run them in parallel.....

AS far as amp recs.. umm Audiobahn, Alpine.. anything like that is fine, No Kmart/Walmart/Radio Shack amps though!

Good Luck!

 

[VolcomMag]

holy s**t.....u have the EXACT same setup i have/getting. I have everything but the subs. How does it sound? Is it loud bass that people would complain about, or is it just simple bass to make the music sound better?

And for the doors/rear speakers. Unless ur doing the Type-R (forgot model #).....you dont need a amp. If you wanna run a amp to them, pay the extra $40 or w/e and get the R's......

 

[skinnyjdm]

This is slightly a topic detour but doesn't alpine do honda stereos?

 

[VolcomMag]

not that im aware of.....if so, its only in the newer stuff or certain models.......

 

[J32a2OwnsU]

I never heard that either, but it doesnt mean its not possible!!!!

 

[Mr.Luder]

i recenttly picked up an alpine deck and its pretty strong cept when i connect amp and sub its hella weak for it...i dunno wuts wrong..the deck has sub control and sub output but the sub is hella weak when connected..but when the sub and amp is connected to my sisters pioneer its pretty strong

 

[J32a2OwnsU]

i recenttly picked up an alpine deck and its pretty strong cept when i connect amp and sub its hella weak for it...i dunno wuts wrong

I dont get it....

Do you mean it just doesnt play loud enough when you have your subs/amp playing?????

 

[Bobo_686]

buy an amp. i am runnin an alpine 4 channel for my front infiniti components and a 2 channel bridged for my sub, it sounds so much better, not to mention you have full control of the equalizer curve, so u have a much better control of the sound itself

 

[kingstonrock]

i recenttly picked up an alpine deck and its pretty strong cept when i connect amp and sub its hella weak for it...i dunno wuts wrong..the deck has sub control and sub output but the sub is hella weak when connected..but when the sub and amp is connected to my sisters pioneer its pretty strong

Your sister's pinoeer probably has stronger pre-amp outputs than your alpine (possibly 4 volt compared to 2 volt). This is not really an issue, you just need to adjust the gain on the amp accordingly. Set the headunit to about 3/4 max volume. Raise the gain on the subwoofer amp until you begin to hear distortion.. then back the gain off a little bit until the point where the distortion goes away. If follow this same method for both cars, the output should be that same.

Also, realize that the car itself will have a huge effect on the overall response of the system (transfer function).

Eric

 

[Mr.Luder]

I dont get it....

Do you mean it just doesnt play loud enough when you have your subs/amp playing?????

i have an amp...but its hella weak..its as loud as the regular speakers in the car and hits as hard as them...wait wait even the car speakers hit harder loll!!!! the deck is 45x5 mp3 and all that crap wit a sub output and sub control but when i use the sub control it doesnt seem to make any diff but when i up the bass it changes all the speakers!! LOL wierd any suggestions?

 

[Bobo_686]

how many preamp outputs do you have in the headunit?

 

[VolcomMag]

Its same headunit as mine...........3