Best Subs for this Amp

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Gbelous

Member - Posts: 30

Joined: October 16, 2004

Location: United States

Posted: December 16, 2004 at 12:09 PM / IP Logged

Here are the specs to the amp I have no...any idea what subs would fit it best? aiming for 10" and a reasonable price.

Power Acoustik PA4-800 Amplifier

Manufacturer Sku: PA4-800

Brand: Power Acoustik

Model: PA4-800

Min Frequency Response: 10 Hz

Max Frequency Response: 30 KHz

Bridgeable: Yes

Protection LED: Yes

Power supply topology: MOSFET

Signal to Noise Ratio: 97 dB

Features

Bass Boost: Yes

Wire gauge: 4

Gold Plated Connectors: Yes

Tri-Way Capable: Yes

Output Power

Peak Power Output (Watts x Channels): 800 x 4

Bridged Power (Watts x Channels): 800 x 1

RMS Power Output (Watts x Channels): 105 x 4

Minimum Impedance Unbridged: 2 Ohms

Tri-Mode Capable: Yes

Crossover

High-Pass Crossover Min Frequency: 150 Hz

High-Pass Crossover Max Frequency: 1.5 KHz

Low-Pass Crossover Min Frequency: 40 Hz

Low-Pass Crossover Max Frequency: 120 Hz

Dimensions

Height: 11.25 in

Depth: 2.25 in

Width: 14 in

dragonrage

Copper - Posts: 193

Joined: March 15, 2003

Location: United States

Posted: December 16, 2004 at 12:26 PM / IP Logged

Those specs do not impress me. However, I will say that you're going to want to shoot for 2 subs, either 4 ohms each or DVC 2 ohms/coil each or DVC 8 ohms/coil each. Or you can go for 4 subs, 2 ohms or 8 ohms each... And the wattage is not very high, so you're going to want to shoot for something with a sensitivity of at least 90dB. Though keep in mind that some manufacturers (*coughaudiobahncough*) overrate their sensitivity ratings.

2009 Pontiac G8 in planning stage

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Speakers: ?

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Gbelous

Member - Posts: 30

Joined: October 16, 2004

Location: United States

Posted: December 16, 2004 at 12:38 PM / IP Logged

okay, thanks for the input...i know the amp isnt the best out there but i was informed that with the setup i have no the amp is too powerful for the subs i have and i figured id replace the subs before i burnt them up. and yea, id look for 2 10" subs and that is what i have now.

if u think otherwise let me know...the sub specs are:

TS-W28C

Size - 10" (25cm)

Nominal Power - 120W

Max Power - 400W

Nominal Impedence - 4Q

Sensitivity - 90dB

Frequency Responce - 20-4500Hz

Magnet Weight - 706g (25oz)

Displacement - 0.04cuft (1.12 liters)

Revc - 3.0Q

Levc - 1.516mH

Fs - 28.6Hz

Qms - 8.63

Qes - 0.518

Qts - 0.488

Vas - 2.971cuft (84.13 liters)

Rms - 1.338N.S/m

Mms - 63.93g

Cms - 4.858x10^-4m/N

Diam - 8.3" (211mm)

BL - 8.349T.m

Xmax - 0.2" (5.2mm)

Sealed Enclosure - 1.0cuft (28.3 liters)

Ported Enclosure - 1.1cuft (31.2 liters)

port - 3"(76mm) x 12"(305mm)

Bandpass Enclosure - sealed - 0.6cuft (17 liters)

vented - 0.6cuft (17 liters)

port - 3"(76mm) x 5"(127mm)

Cutout hole - 9.375"(238mm)

Mounting depth - 4.75"(121mm)

dragonrage

Copper - Posts: 193

Joined: March 15, 2003

Location: United States

Posted: December 16, 2004 at 1:54 PM / IP Logged

If you're looking for pretty good bass, you'll be best off selling everything you have and replacing it all. However, if you really want to stick with the amp, a bunch of Infinity subs are rated 92dB sensitivity. Infinity is a pretty good brand for drivers. That amp is going to need all the help it can get from the drivers, so I would go for 12"s if it's an option.

2009 Pontiac G8 in planning stage

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forbidden

Platinum - Posts: 5,352

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Joined: November 01, 2003

Location: Alberta, Canada

Posted: December 16, 2004 at 3:38 PM / IP Logged

Any two 4 ohm svc subs will work fine off of this amp. This is of course presuming that the amp will only be used to drive these subs and not anything else. If that is the case find a pair of 10" subs that you like and go for it.

Top Secret, I can tell you but then my wife will kill me.

dragonrage

Copper - Posts: 193

Joined: March 15, 2003

Location: United States

Posted: December 16, 2004 at 4:41 PM / IP Logged

forbidden, yes, you are correct. But I'm recommending the Infinitys because of the sensitivity. The pretty low wattage of this amp is not going to push a speaker with 87dB or so as well. I'm assuming he wants some pretty decent bass since he's going for dual subs. But if I am incorrect in that assumption, then there are lots more possibilities.

2009 Pontiac G8 in planning stage

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Speakers: ?

Amps: ?

forbidden

Platinum - Posts: 5,352

Joined: November 01, 2003

Location: Alberta, Canada

Posted: December 16, 2004 at 5:19 PM / IP Logged

Specs, especially the efficiency rating will not tell you what the speaker will sound like. While yes a higher efficency number will make a "louder" system, at what expense to sound quality. Efficiency can be made up in the form of a proper box. While his amp may not be all that it is cracked up to be, my bet is that it will still produce a ton of power and as such any pair of subs in the proper box should perform more than adequate for him.

Top Secret, I can tell you but then my wife will kill me.

kfr01

Gold - Posts: 2,121

Joined: April 30, 2003

Posted: December 16, 2004 at 7:00 PM / IP Logged

Honestly.

You're doing it in completely the wrong order.

1) Determine goals

2) Determine budget

3) Check out space

4) Buy the subs

5) Design the box

6) Finally, pick the amplifier

I'd personally sell that amp and go back to square one, #1, numero uno.

For the sub, not only is the amplifier the last item on the logical list of decisions to make, it's probably the least important item. As long as you don't have a totally wrong amplifier, or a crap one, its going to sound pretty much the same and get pretty much just as loud.

Anyway. What is your goal and what is your budget for the entire bass project? Let's start there.

New Project: 2003 Pathfinder

dragonrage

Copper - Posts: 193

Joined: March 15, 2003

Location: United States

Posted: December 16, 2004 at 7:18 PM / IP Logged

kfr01 speaks the truth. Even if I got a chance to do my system over, I'd pick Adire over JL Audio. But I wouldn't go for Adire with the amp you have, as the power level is too low.

2009 Pontiac G8 in planning stage

HU: ?

Speakers: ?

Amps: ?

dedlyjedly

Copper - Posts: 94

Joined: November 17, 2004

Location: United States

Posted: December 16, 2004 at 7:40 PM / IP Logged

these specs are confusing:

800x4, then 800x1(bridged), all considering a minimum load of 2 ohm stereo!!

my first concern is how youre going to bridge all 4 channels of that power akoustic together to one channel. most often times 4 channel amps only allow you to bridge the left and right "front" section together into one, and then the left and right "rear" section into another. thus you can run one sub on each bridged section.

so...2 svc 4 ohm subs could be configured w/ one sub on each bridged section @ 4 ohm mono, which is what i assume forbidden and dragonrage tryed to communicate (but then the spec would have to say 800x2 bridged!)

but if somehow you could bridge all 4 channels together such as power akoustic would lead one to believe, 2 svc 4 ohm subs would present a 2 ohm mono load to the amp (and poof you will magically require another)

MECP certified, 5yrs experience, you probably otta listen bitch!!

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