Need a 4 channel Amp, specs of my setup inside.

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Dec 26, 2002 | 09:44 AM

integra-modder

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Joined: Mar 2002

Posts: 4,547

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From: Blacksburg, VA

Need a 4 channel Amp, specs of my setup inside.

Ive been running the Pioneer HU and the Alpine componenets but I think they are underpowered by the HU's pre amp. Can you guys suggest something not too expensive for a 4 channel setup. I dont want to spend anything over $250 on the amp.

Also, if you think the alpine rears that I plan on getting arent sufficient, please suggest something else.

Here is my current setup:

Head Unit:

Quote:

Originally copied from Pioneer's Website (Click Here)

DEH-P920R

Premier CD Receiver with Organic EL Display, EEQ with DSP, Digital Audio CD-R (when Disc is Finalized)
IP(Interactive Pioneer)-Bus System Control
6, 12, & 50+1 Multi-CD Players>
Voice Commander (CD-VC60 or CD-VC50)
TV Tuner (GEX-P7000TV)
Disc Title Memory (48 Discs)
CD-Text Decoder (for use with CD-Text encoded CD’s)
10-Character Display for Disc Title Memory, CD Text (SCD & MCD) & MD Title (with Scroll)
Disc List
MOSFET45 (45Wx4-Channel High Power)
Hi-Volt RCA Preouts (x3 pair) (Front/Rear + Subwoofer or Non-Fading) (Non-Clipping 6.5V max)
Two-Way Crossover (HPF & LPF)
Front/Rear HPF (50/80/125Hz, -12dB/Oct.)
Sub-Out LPF (50/80/125Hz, -18dB/Oct.)
Sub-Out Level (-12dB to +12dB) and Phase Control
EEQ Performance Chip
13-Band Graphic Equalizer (By DSP)
Easy EQ (EEQ) switches 5 Factory, 1 User EQ Presets (Super Bass, Powerful, Natural, Vocal, Flat, Custom)
Source Custom EQ Memory (Independent Custom Memory for each source)
Selectable Loudness Control (Low/Mid/High/Off)
Built-In DSP
Auto-EQ - Automatic Frequency Response Calibration System (1 curve, microphone included)
3-Mode Digital Sound Field Control (SFC) (Studio, Club, Live)
Listening Position Selector (4 Mode: Front Left/Front Right/Front/All)
Octaver Bass Enhancement (2 modes)
Digital Automatic Sound Levelizer (ASL) with Built-In mic (5-mode)
AUTO-Flap Motorized Face
Detachable Face Security™
DFS™ Alarm+
Wireless Full-Function Smart Remote Control (with Mounting Base)
Cellular/Navigation Mute (Cellular Mute Requires Optional CD-CM1)
New Multicolor Organic EL Display
Full Motion Animated 3D Graphics
High Resolution Display (256 x 52 pixels) with two screen savers (Cityscape, Cosmos)
Super Bright with Wide Viewing Angle (170 degrees)
Spectrum Analyzer
Premier Two-Year Warranty

Speakers, Front:

Quote:

Originally copied from Alpine's Website (Click Here)

SPR-176A
Features:
In-Line12dB HP Crossover with Tweeter Protection
Speaker Grills Included

Tweeter
1" Soft Dome Tweeter
Feather Light Silk Dome Tweeter
Flush & Surface (W/swivel) Mounting Kits
Neodymium Magnet

Woofer
Aluminum Coated Poly Cone
Cast Aluminum Woofer Frame
Extra-Large Rubber Surround
Extra-Large Woofer Magnet with Vented Pole Piece
Gold Plated Terminals
Parabolic Cone Shape

Specs:
Crossover Attenuation Level : 0db, -3dB, -6dB
Crossover Size (in) : 2-9/16" x 4-3/4" x 1-3/8" (WxHxD)
Crossover Size (mm) : 65mm x 120mm x 35mm (WxHxD)
Frequency Response : 40Hz - 30kHz
Impedance (Nominal) : 4 ohm
Sensitivity : 86 dB/W/m
Tweeter Mounting Depth with Flush Kit (in) : 5/8"
Tweeter Mounting Depth with Flush Kit (mm) : 15.4mm
Tweeter Mounting Diameter with Flush Kit (in) : 2-1/4"
Tweeter Mounting Diameter with Flush Kit (mm) : 56mm
Woofer Mounting Depth (in) : 2-3/4"
Woofer Mounting Depth (mm) : 70mm
Woofer Mounting Diameter (in) : 5-3/4"
Woofer Mounting Diameter (mm) : 145mm

Power Handling
Power Handling Capacity (Peak) : 200W
Power Handling Capacity (RMS) : 50W

Speakers, Rear: (Not yet bough, but considering these)

Quote:

Originally copied from Alpine's Website (Click Here)

SPR-174A
Features:
In-Line12dB HP Crossover with Tweeter Protection
Speaker Grills Included

Tweeter
1" Soft Dome Tweeter with 15° Swivel Capability
Feather Light Silk Dome Tweeter
Neodymium Magnet

Woofer
Aluminum Coated Poly Cone
Cast Aluminum Woofer Frame
Gold Plated Terminals
Parabolic Cone Shape
Rubber Surround
Vented Pole Design

Specs:
Frequency Response : 45Hz - 30kHz
Impedance (Nominal) : 4 ohm
Mounting Depth (in) : 2-3/4"
Mounting Depth (mm) : 70mm
Mounting Diameter (in) : 5-3/4"
Mounting Diameter (mm) : 145mm
Sensitivity : 87 dB/W/m
Weight (One Speaker) : 1.5kg (3lbs, 5oz.)

Power Handling
Power Handling Capacity (Peak) : 160W
Power Handling Capacity (RMS) : 40W

Dec 26, 2002 | 09:50 AM

integra-modder

Thread Starter

Joined: Mar 2002

Posts: 4,547

Likes: 0

From: Blacksburg, VA

Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

Just saw this: Is it any good?

Click on picture for more info.

Key Features
• Max Power (EIAJ) 75W x 4 + 180W (4ohm; Stereo) 180W x 2 + 180W x 1 (Bridged 4ohm)
• 14.4V RMS Continuous Power 4ohm; Stereo (0.08% THD) 40W x 4 + (0.3% THD)120W x 1(4ohm) 2ohm; Stereo (0.3% THD) 50W x 4 + (0.3% THD)120W x 1(4ohm) Bridged 4ohm; (0.3% THD) 100W x 2 + 120W x 1
• S/N Ratio 100 dBA
• Bass Engine©
• Bass Boost
• 18dB LP (50-200Hz) & 18dB HP (80Hz) Crossover
• 18dB LP (50-200Hz) & HP (80Hz) Crossovers
• 4 Volt Input Capability
• STAR Topology & Duo-B Circuitry
• Darlington Bi-Polar Outputs
• MOSFET Power Supply
• Speaker Level Input
• Blue Power LED

Also - If possible, I want this thing to fit under my passenger seat in my integra.

[Modified by integra-modder, 1:54 PM 12/26/2002]

Dec 26, 2002 | 04:56 PM

integra-modder

Thread Starter

Joined: Mar 2002

Posts: 4,547

Likes: 0

From: Blacksburg, VA

Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

ttt

Dec 26, 2002 | 05:28 PM

GSteg

Joined: Dec 2001

Posts: 1,380

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Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

don't get rear speakers. it will mess up the front staging. components upfront would be more than enough, especially if you want great staging. an amp i would go for that would fit the bills would be a US acoustics USX2080.

http://thezeb.com/caraudio/us_acoustics.html

its $82.99 plus 6.95 shipping. rated at 80x2watts RMS. but the ratings were rated at 12.9v. if you have a good electrical system, you can be sure you're getting a little bit more than 80x2 watts RMS. 3 years warranty may come in handy later on..

Dec 27, 2002 | 07:39 AM

ck279

Junior Member

Joined: Aug 2001

Posts: 454

Likes: 0

From: Central, NJ, USA

Re: Need a 4 channel Amp, specs of my setup inside. (GSteg)

Your components will truly come alive once you get a good amount of power flowing to them. You may as well go with the Alpine amp. They sound good and have a history of being reliable. I personally would go with speakers in the rear. Front speakers do provide more than enough sound, but the rear speakers provide "fill". They make the music sound more spacious. Not everyone feels they are necessary but I have yet to hear a system that sound better with fewer speakers.

Check out are site, I think these two amps (one you already mentioned) are great choices.

http://www.audio-warehouse.com/detail.asp?mdl=MRPF200

http://www.audio-warehouse.com/detail.asp?mdl=MRVF340
(sorry, our spec's are wrong on the above amp) below is a link to the correct spec's.
http://www.crutchfield.com/cgi-bin/S...RVF340&o=m&a=0

If you have any questions feel free to give me a call.

Carl
AWE
(800) 831-5622

[Modified by ck279, 4:39 PM 12/27/2002]

Dec 27, 2002 | 12:55 PM

integra-modder

Thread Starter

Joined: Mar 2002

Posts: 4,547

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From: Blacksburg, VA

Re: Need a 4 channel Amp, specs of my setup inside. (ck279)

Quote:

Thanks

Why is there $100+ difference between the two amps? I mean one looks better than the other, but if its under my seat i could care less. Is the more expensive one more bang for the buck?

Dec 27, 2002 | 04:41 PM

ck279

Junior Member

Joined: Aug 2001

Posts: 454

Likes: 0

From: Central, NJ, USA

Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

The more expensive amplifier is better in a few ways. One; It is more underrated than the less expensive series. What this means is that while it says 50W x 4 it will likely put out more than that.....say 60W x 4 (just an example). This occurs in product from many of the better companies due to the fact that they "overbuild" the product.

The more expensive amplifier will have cleaner overall sound. This is due to finer quality circuit design and better circuit components used. Doing so will produce less distortion (or THD) and a higher signal to noise ratio (S/N). Signal being your music, noise being other things that get amplified but are not a component of the music.

There are other differences but these are the main ones and the only ones that are really going to matter for what your application is. It is basically a difference of sound quality.
BEAR IN MIND that the less expensive amp is in no way bad or an inferior product. What is not often mentioned is that many, many people cannot tell the audible difference between two amplifiers.....or ever two different speakers, or head units for that matter.

Either one is a good choice. If you can comfortably go with the better one, then I would go for it. If not, the less expensive will work great as well.

Remember the beauty of most car audio products is that you can transport them from one vehicle to another when that time comes. Sooooo, unlike an exhaust or something like that.....buying nice audio equipment might be expensive up front, but is more of an investement.

Carl
AWE
(800) 831-5622

[Modified by ck279, 1:46 AM 12/28/2002]

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Dec 27, 2002 | 06:49 PM

chipoweredcivic

Joined: Sep 2002

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Re: Need a 4 channel Amp, specs of my setup inside. (ck279)

If they can't heard the difference, steer them towards audiovox!!

Dec 27, 2002 | 07:41 PM

gogeeta13

Joined: Oct 2002

Posts: 299

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From: Cleveland, oh, USA

Re: Need a 4 channel Amp, specs of my setup inside. (chipoweredcivic)

I use a four channel alpine v12 amp. Their quality is superb, and they are VERY UNDERATED. In addition, the prices arent too bad either.

Dec 27, 2002 | 11:55 PM

#10

integra-modder

Thread Starter

Joined: Mar 2002

Posts: 4,547

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From: Blacksburg, VA

Re: Need a 4 channel Amp, specs of my setup inside. (ck279)

Quote:

Thanks again for the great help Carl, its all slowly becoming clear to me.

Quote:

I use a four channel alpine v12 amp. Their quality is superb, and they are VERY UNDERATED. In addition, the prices arent too bad either.

What model do you use?

Dec 28, 2002 | 08:45 AM

#11

GSteg

Joined: Dec 2001

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Re: Need a 4 channel Amp, specs of my setup inside. (chipoweredcivic)

Quote:

If they can't heard the difference, steer them towards audiovox!!

but you pay for quality, features, etc..i don't think you wanna get an audiovoz for quality

Dec 28, 2002 | 08:18 PM

#12

gogeeta13

Joined: Oct 2002

Posts: 299

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From: Cleveland, oh, USA

Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

its a MRV F3## i cant remember the model number. Its at least 2 or 3 years old, i ahve had it for a while. If I redo my amp rack any time soon, i will get the model number off the bottom.

Dec 28, 2002 | 11:44 PM

#13

integra-modder

Thread Starter

Joined: Mar 2002

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From: Blacksburg, VA

Re: Need a 4 channel Amp, specs of my setup inside. (gogeeta13)

It appears to be pretty unanimous to go for the higher end model. The thing is I dont really listen to music very loudly, so I just want to make sure Im getting the best bang for the buck that I can get. If its a choice between these two models that Carl suggested, would most of you opt (keeping a small budget in mind) for the better, more expensive amp in a value per dollar rating?

Dec 30, 2002 | 09:29 PM

#14

gogeeta13

Joined: Oct 2002

Posts: 299

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From: Cleveland, oh, USA

Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

the F-340 appears to have specs simular to my V12. Just a newer revision of my amp. If you dont plan on cranking it, just get the F200. It may not go as loud, but you will ensure distortion free listening.

Dec 30, 2002 | 10:42 PM

#15

GSteg

Joined: Dec 2001

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Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

if you want the best bang for the buck, it has to be US acoustics. underrated and high quality. 3 years warranty, can't smote that.

[Modified by GSteg, 5:52 PM 12/31/2002]

Dec 31, 2002 | 05:35 AM

#16

integra-modder

Thread Starter

Joined: Mar 2002

Posts: 4,547

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From: Blacksburg, VA

Re: Need a 4 channel Amp, specs of my setup inside. (GSteg)

Quote:

if you want the best bang for the buck, it has to be US acoustics. underrated and high quality. 3 years warranty, can't smote that.

Whats an amp by them that'll be a good comparison?

Dec 31, 2002 | 08:48 AM

#17

GSteg

Joined: Dec 2001

Posts: 1,380

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Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

a US acoustics USX4085 would be nice.

http://usacoustics.com/specifications/mosfet_specs.htm

its rated at 85x4@4ohm, but don't let it fool you though. being rated at 12.9v, you'll be sure to get more power than that (about 95 or so) at 14.4v. the alpines are rated at 14.4v so if your electrical system isn't making 14.4v, you're not getting the rated power from them. can be bought for $172.99 plus 6.95 shipping at thezeb.com. 3 years warranty also. at this price, its hard to smote. i have not seen anyone dislike them so far.

but if you feel uncomfortable with this amp, get the alpine, which is nice also, if youre going for more for name brands

[Modified by GSteg, 5:50 PM 12/31/2002]

Dec 31, 2002 | 09:23 AM

#18

gogeeta13

Joined: Oct 2002

Posts: 299

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From: Cleveland, oh, USA

Re: Need a 4 channel Amp, specs of my setup inside. (GSteg)

GSteg,

the alpines are heavily underrated. When I got mine tested a couple years ago I was putting out ~%25 more than rated power.

But I have used a coupple US acoustics amps, and they arent bad, pretty much best you can do for your money.

Dec 31, 2002 | 11:07 AM

#19

GSteg

Joined: Dec 2001

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Re: Need a 4 channel Amp, specs of my setup inside. (gogeeta13)

yes..those older alpines were more heavily underrated than today's alpine. i think the voltage they rated them at was 12.5v or something. the newer ones today are pretty overrated (not power spec). much can be bought for the same price.

Jan 1, 2003 | 12:15 AM

#20

gogeeta13

Joined: Oct 2002

Posts: 299

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From: Cleveland, oh, USA

Re: Need a 4 channel Amp, specs of my setup inside. (GSteg)

conclusion of the thread is: you probably cant go wrong with either the US acoustics amps, or an alpine.

Jan 1, 2003 | 10:39 AM

#21

GSteg

Joined: Dec 2001

Posts: 1,380

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Re: Need a 4 channel Amp, specs of my setup inside. (gogeeta13)

Jan 1, 2003 | 11:29 AM

#22

integra-modder

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Joined: Mar 2002

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From: Blacksburg, VA

Re: Need a 4 channel Amp, specs of my setup inside. (GSteg)

Anyone know the amount of space under an integra seat, both drivers and passenger.

Jan 1, 2003 | 12:35 PM

#23

integra-modder

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From: Blacksburg, VA

Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

What do you guys think about the:

Alpine MRV-F540?

Jan 1, 2003 | 02:14 PM

#24

vteg

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From: Los Angeles, CA, USA

Re: Need a 4 channel Amp, specs of my setup inside. (integra-modder)

Check out the JL 300/4 also.

http://www.jlaudio.com/amps/3004.html

Here is a review http://www.carsound.com/reviews/amps/jl_3004.html

You can search the net, there are other reviews also. It is in the same price range as the alpine you posted. I considered that amp also. It has a smaller footprint. 3 inches less length and 2 inches less width. I was able to shove the amp under my seat with the length going left to right

Seat mechanism got caught on it though. So I had to flip it so it is front to back.

[Modified by vteg, 3:15 PM 1/1/2003]

Jan 1, 2003 | 02:38 PM

#25

integra-modder

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Joined: Mar 2002

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From: Blacksburg, VA

Re: Need a 4 channel Amp, specs of my setup inside. (vteg)

Cool, I know JL make killer subs, and I want to get one, a smaler 10 to fill out my car and make it sound complete. I dont want the box to be enourmous and take up my whole trunk space.

http://www.jlaudio.com/amps/pdfs/SYS_9.pdf - This is sort of the basic setup that I want...

Just dont want to waste money into thin air if not going to be using my system to its full capacity.

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