QBA

Hi

I have a dilema I have been listening bad and good reviews about Alpine and Rockford Fosgate amps so I'm all confuse, wich amp should I go for?

What Subwoofer should I go for, Infinity, Alpine or Audiobahn?

thanks

Alex

Protege52003

I have used Rockford's in my car and my friend uses alpine's in his har. I think they are both great amps for their price range and can out-power many amps priced higher then them. I think rockford fosgate has a great return policy and service department if you have any problems with their products. Their subs can take a beating, too. I think I would take the Alpine subs first, then infinity then Audiobahn (which I have not reviewed or heard any news about them).

I have a rockford sub in my car and an infinity in my home theater. They are both great products.

JAC

For subs I recomend JL, great stuff. As for the amps, it depends, what's your price range?

QBA

JAC

I guess that my price range will be dictate but what I need and how good the amp, so the answer is I'm willing to go as high as I need but I don't think I need a 1000 $ amp.

This is what I have on my car as now, and I'm not looking for loud sound, but for good quality Sound

Headunit Alpine CDA-9815 (2003 model)

Front Speakers

Infinity 652I
6-1/2" two way

Power handling: 60w RMS, 180 W peak
Sensitivity: 92 db
Frequency response: 54hz - 20khz
impedance: 4 omhs


Rear speakers:

Infinity Kappa 62.5I two way
6-1/2" two way

Power handling: 75w RMS, 225w peak
Sensitivity: 90 db
Frequency response: 45hz - 21khz
impedance: 4 omhs

So what do you guys think I need?

Protege52003

My friend w/alpine amp uses jl10w0 subs and they sound very good. He has two 10's with the alpine Alpine MRP-M200
(129.99 crutchfield) amp powering both of them.

They sound just as good as my 12' Rockford Z sub just take up more space in his trunk.

Think he spent $800 for the subs, amp, box, wiring and instal.

That was last summer so i am sure you can get everything for less now.

Maybe you should get an infinity sub to match you other speakers.

QBA

Wich of these two 4 channel amps should I go for to power infinity my speaker?

MRV-F340

Max Power (EIAJ) 140Wx2 (4ohm; Stereo) 400Wx1 (Bridged 4ohm)
• 12V RMS Continuous Power 4ohm; Stereo (0.08% THD) 40Wx2 2ohm; Stereo (0.3% THD) 75x2 Bridged 4ohm; (0.3% THD) 150x1
•14.4V RMS Continuous Power 4ohm; Stereo (0.08% THD) 60Wx2 2ohm; Stereo (0.3% THD) 100x2 Bridged 4ohm; (0.3% THD) 200x1
• Bass Engineฎ
• S/N Ratio 100dBA
• Frequency Response: 10-50kHz
• 12dB HP/LP Crossover
(50-200Hz)
• Speaker Level Input
• Subsonic Filter (15Hz)
• Extra Large Gold Plated Terminals with Wire Insert Capability
• Top Panel Power LED
• 4 Volt Input Capability
• Continuously Adjustable Crossovers
• DC Straight, STAR Topology
• DC-DC/PWM MOSFET Power Supply



MRP-F240

360W Max Power (EIAJ)
•14.4V RMS Continuous Power
4ohm; Stereo (0.08% THD) 40W x 4 2ohm; Stereo (0.3% THD) 50W x 4 Bridged 4ohm; (0.3% THD) 100W x 2
• S/N Ratio 100 dBA
• Bass Engineฎ
•18dB HP/LP (80Hz) Crossover
•4 Volt Input Capability
• STAR Topology & Duo-B Circuitry
• Darlington Bi-Polar Outputs
• MOSFET Power Supply
• Non-Fading PreOut
• Speaker Level Input
• Blue Power LED

MisterT

I agree about the JL Audio W0 series. They are inexpensive and also sound really good. As far as amperage goes, you could get a 4 channel amp, have the HU run the rear speakers, and have 2 of the 4 channels pushing your front speakers, and bridge the other two channels to push your subwoofer(s). Two channel amps can be run in "tri-mode" pushing a pair of speakers and a subwoofer, but most don't recommend for SQ purposes. Whether you decide on an Alpine 4 channel amp or a Rockford is up to you. If you can find a shop that sells both, see about testing them side by side playing through the same head unit and speakers to hear any audible difference. I know in the past, I kept an Alpine amp that was 40Wattsx2 over a Kenwood 75Wattsx2 because of the better sound quality. Sure the Kenwood was louder, but it just didn't sound smooth and natural the way music is intended to be played. (I don't know how Kenwood's new amps, esp. Excelon series sounds nowadays). I think you will be happy with either though.