Help me choose. :(

Trepkos
10+ year member

CarAudio.com Elite
I am looking for a 2-channel amplifier to power a set of Rainbow Audio Cal25 tweeters and a set of Rainbow Audio SLC 6.5" components.

Each speaker/set takes a 100watts RMS, both are 4-ohms and both will give the amplifier a final load of 2-ohms.

My current choices are:

eD NINe.2

Pros: Cheap at $220, Small size, can fit under the seat a lot easier.

Cons: Questionable reliability, overrated?(Not sure on that one)

Sundown SAX-100.2

Pros: Unquestionable reliability, underrated?(Not sure on this one either)

Cons: $299 price tag, a little bit bigger.

 
Sundown. Underrated, does more like 125w at 4ohm. Very reliable.

The ED is a good choise too, but in this case its the Sundown, hands down.

If you had $300 to spend, you might be able to find a used Sundown 100.4 and go active.

 
another choice...ALPINE PDX-2.150

Can be had for around 200+shipping on ebay. Will put out 150 watts per channel and has a super small footprint.

 
huh? It puts out 150 watts per channel. You said you needed 100 watts? You would have an extra 50 watts per channel with the Alpine.

 
huh? It puts out 150 watts per channel. You said you needed 100 watts? You would have an extra 50 watts per channel with the Alpine.
But with two speaker sets hooked up to the amplifier, wouldn't that split the 150watts? So each set would be getting around 75watts. The other amplifiers are ideal because when the speaker sets are hooked up to them, it presents a 2-ohm load and the other amplifiers output 200+ watts at 2-ohms allowing 100 or more watts to the component set and the tweets.

 
But with two speaker sets hooked up to the amplifier, wouldn't that split the 150watts? So each set would be getting around 75watts. The other amplifiers are ideal because when the speaker sets are hooked up to them, it presents a 2-ohm load and the other amplifiers output 200+ watts at 2-ohms allowing 100 or more watts to the component set and the tweets.
Are you hooking up two full component sets, or just one full set and one tweeter set?
Because if you are just wiring a comp set with another set of tweeters, you will only get a 2-ohm load at frq's reproduced by the tweeters. Frq's produced by your 6.5's will still present a 4-ohm load to your amplifier.

 
Are you hooking up two full component sets, or just one full set and one tweeter set?
Because if you are just wiring a comp set with another set of tweeters, you will only get a 2-ohm load at frq's reproduced by the tweeters. Frq's produced by your 6.5's will still present a 4-ohm load to your amplifier.
*Ahem* I am wiring up one full set and one set of tweeters, each with seperate passive crossovers.

Just to clear that up.

 
*Ahem* I am wiring up one full set and one set of tweeters, each with seperate passive crossovers.
Just to clear that up.
Why? Seems like that would make things exceptionally bright up front.
That will give you a 2-ohm load at frq's above the x-over point, and a 4-ohm load below it. If you use an amp that doubles output into 2-ohms, you will have twice as much power going to your tweeters as you will to your 6.5's.

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.

About this thread

Trepkos

10+ year member
CarAudio.com Elite
Thread starter
Trepkos
Joined
Location
Mississippi
Start date
Participants
Who Replied
Replies
23
Views
1,633
Last reply date
Last reply from
helotaxi
IMG_20260516_193114554_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0
IMG_20260516_192955471_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0

New threads

Top