the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

Amplifier choice for 2 Alpine Type R


Post ReplyPost New Topic
< Prev Topic Next Topic >
530ibmw 
Member - Posts: 7
Member spacespace
Joined: August 07, 2006
Location: United States
Posted: August 08, 2006 at 4:56 PM / IP Logged  
Hello,
Im new to the forum and had a few questions. I have purchased 2 Alping SWR-1242D Type R Dual 4 ohm voice coil subs, rated at 200-500 watts rms with a max of 1500 watts. I am now in search for the perfect amp to power these with at least 450 watts per sub, however, I have read about amps which draw 14.4v from the altenator, and this is something that I want to avoid (as I don't want to upgrade the altenator at this point). I have considered Mono 1 0hm stable amps as my main choice, but I am looking for insight on possible better setups.
Thanks!
customak47 
Copper - Posts: 164
Copper spacespace
Joined: October 25, 2005
Location: Vanuatu
Posted: August 08, 2006 at 5:39 PM / IP Logged  

Amplifiers may claim to be 1 ohm stable, but this load is working the amp as hard as possible, which in turn produces distortion. The ideal setup would be 2 r type 1222d's with dual 2 ohm coils running off of an Alpine PDX 1000.1 or some other large mono amp. This way, you get a 2 ohm mono load which is the most efficient w/o sacrificing sq or amp longevity. If you need help with wiring, just ask, but I would try and return the 1242's and get the 1222's. Good luck.

My rifle is my friend...
530ibmw 
Member - Posts: 7
Member spacespace
Joined: August 07, 2006
Location: United States
Posted: August 08, 2006 at 5:48 PM / IP Logged  
Hmmm ok, yea, I doubt that I'll be able to take the 1242's back (last chance deal) type of thing. In order to save sq then, would i be best going with 2 seperate amps? Or if I did run with the 1 ohm, would it cause a great loss of sq, if not pushed to the max all the time?
Flakman 
Copper - Posts: 365
Copper spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: April 25, 2005
Location: United States
Posted: August 08, 2006 at 5:52 PM / IP Logged  
customak47 wrote:

The ideal setup would be 2 r type 1222d's with dual 2 ohm coils running off of an Alpine PDX 1000.1 or some other large mono amp. This way, you get a 2 ohm mono load which is the most efficient w/o sacrificing sq or amp longevity. If you need help with wiring, just ask, but I would try and return the 1242's and get the 1222's. Good luck.

The PDX1.1000 is rated at 1000 @ 4 ohms. If he runs his current Type S 1242 DVCs in Series Parallel he will get a 4 ohm load and have their rated power needs supplied nicely.

Amplifier choice for 2 Alpine Type R -- posted image.

The Flakman
I feel strange. I have deja vu and amnesia at the same time.
John | Manteca, CA
530ibmw 
Member - Posts: 7
Member spacespace
Joined: August 07, 2006
Location: United States
Posted: August 08, 2006 at 5:57 PM / IP Logged  
That amp does look nice.... but $600 is a bit steep for me at this moment. But in actuality, I should be looking for an amp supplying 900-1000 watts x 1 @ 4 ohm, in order to maintain sq, and get best output for speakers?
530ibmw 
Member - Posts: 7
Member spacespace
Joined: August 07, 2006
Location: United States
Posted: August 08, 2006 at 6:09 PM / IP Logged  

.... would it also be possible to run a 2 channel amp, capable of say 500 watts per channel @ 4 ohm? And run each sub to the individual channels?

Flakman 
Copper - Posts: 365
Copper spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: April 25, 2005
Location: United States
Posted: August 08, 2006 at 6:20 PM / IP Logged  

You could use an amp rated @ 400-500 X2 @ 2 ohms, or any other good amp that will push 900-1000 @ X1 @ 4 ohms. It would still be a good setup. I just don't like running @ 1 ohm because of heat. An amp may be rated at 1 ohm...but that doesn't mean it can take the heat for too long before thermal shutdown, as well as the issue of more THD at that impedence.  

The Flakman
I feel strange. I have deja vu and amnesia at the same time.
John | Manteca, CA
530ibmw 
Member - Posts: 7
Member spacespace
Joined: August 07, 2006
Location: United States
Posted: August 08, 2006 at 6:28 PM / IP Logged  

Great to hear! Thanks for the replies!

Now, due to budget at this time (planning on upgrading in a few months), which of the following 2 amps would be prefered.

The Orion West Coast Customs edition 1600.2 :

Amplifier choice for 2 Alpine Type R -- posted image.

Features & specs:

  • High gloss chrome finish
  • Class AB symmetrical bipolar design
  • 2 way 12/ 24 DB variable high and low pass Xover
  • Separately adjustable 2 way crossover with output for second amp
  • 1600 Watts maximum power
  • CEA RMS RATING 350 RMS x 2 @ 4 ohms
  • CEA RMS RATING 420 RMS x @ 2 ohms
  • Intell Q bass EQ 0 - 10 db boost
  • > .1 THD @ rated power
  • Freq res 10HZ-50Khz
  • Dimension: 23.5"L x 10.5"W x 2.4" H
  • Speaker connections 12 AWG
  • Power connections 4 AWG

Or the Profile AP 2000"

Amplifier choice for 2 Alpine Type R -- posted image.

Details:

» 2-channel car amplifier   
» 320 watts RMS x 2 at 4 ohms (480 watts RMS x 2 at 2 ohms)   
» 960 watts RMS x 1 bridged output at 4 ohms (4-ohm stable in bridged mode)   
» variable low-pass filters (50-250 Hz, 12 dB/octave)   
» variable bass boost (0-12 dB) at 45 Hz   
» variable subsonic filter (20-50 Hz)   
» wired bass level remote control   
» stereo or bridged mono output   
» Tri-way capable ( Tri-Way Crossover required)   
» preamp- and speaker-level inputs   
» preamp outputs   
» fuse rating: 25A x 4   
» 4-gauge power and ground leads and a 100-amp fuse recommended — wiring and hardware not included with amplifier   
» 24-3/16"W x 2"H x 10-5/16"D   
» warranty: 3 years

customak47 
Copper - Posts: 164
Copper spacespace
Joined: October 25, 2005
Location: Vanuatu
Posted: August 08, 2006 at 9:14 PM / IP Logged  

If you bite the bullet now and buy the PDX, you won't have any problems down the road. If you skimp on an overrated 2 channel, it'll last for a while....... choose wisely grasshoppa

My rifle is my friend...
530ibmw 
Member - Posts: 7
Member spacespace
Joined: August 07, 2006
Location: United States
Posted: August 08, 2006 at 9:18 PM / IP Logged  

:)

I'm thinking of going with a Soundstream Picasso 2.880 amp... I've had one in the past, different model, lasted me some 8 years.

I would love to "Max out" the system, with the best amp and all the other goodies, but for now, I want to get something together that hits hard, clear, and won't break the bank.

Page of 2

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Sunday, October 2, 2022 • Copyright © 1999-2022 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer