system tuning help

[bigjdawg]

first off i wanna say thank you to steve meade AND all the members.this forum is exactly what i was looking for.

now to my question but first the specs of my system so knowledgeable persons can know what im working with (on a low budget)and know what i can do with it.

currently i have installed:

*amp-kenwood KAC-9105D(i have the model right before this ,kac-9104D which is the exact same specs)

Performance Series Class D Mono Power Amplifier

500 W x 1

RMS Watts per channel @ 4 ohms, 1% THD+N

75 dBA Signal to Noise Ratio (Reference: 1 Watt into 4 ohms)

Max Power Output 1800 W

Rated Power Output

14.4 V

500 W x 1 (4Ω) (20 Hz - 200 Hz, 1.0% THD)

900 W x 1 (2Ω) (100 Hz, 1.0% THD)

Frequency Response 10-200Hz(±1dB)

Input Sensitivity 0.2 V - 5.0 V (MIN-MAX)

Input Impedance 10 kΩ

Signal to Noise Ratio 100 dB

Low Pass Filter Frequency

(-12 dB/oct.)

50 Hz - 200 Hz (variable) Low-Pass Filter Frequency

High Pass Filter Frequency -

Dimensions (W x H x D) 350 x 59 x 238 mm (13-3/4 x 2-5/16 x 9-3/8)

*subs- in a double bottom slot ported box tuned to (i believe) 35hz with 2sq ft chambers for each sub(2)

kenwood-KFC-W3012

Performance Series 12" Subwoofer

• MAX POWER 1200W

• 12" Woofer with 4-ohm voice coil

• Urethane Surround

• Dragon Spider Design

• 2-Layer Voice Coil Design

• Dual Magnet Drive

• 8AWG Wire Capable Push Terminals

• Frequency Response: 39-300 Hz

• Sensitivity: 86 dB

• Mounting depth: 6-3/16"

SPECIFICATIONS:

• Peak Input Power: 1200W

• Rated Input Power: 400W

• Impedance: 4 Ohms

• Sensitivity: 86dB

• Free-Air Resonance: 32Hz

• Frequency Response: 39Hz – 300Hz

ok, thats what i have now , and a kenwood HU pushing kenwood 6x8s & x9's. i have 2 more of the same kfc subs(12's) on the way and i was wanting to run all 4 . i know id be under powering them but thats better than over right? i will be getting another identical amp later on but i wanna know if id be good to run all 4 (or 3 even though i dont like odd number subs)off this amp and any suggestions on amp settings or ANY OTHER advice or opinions would be greatly appreciated . thank you in advance

p.s. i am by no means a audio expert , i hook up my own stuff and friends who cant afford to go to the shop .

[XX7R]

Just make sure you match up the ohm loads right! And yes you can overpower subs as long as you dont have the gain too high. LOL what the F is a "Dragon spider design?" Lmfao at the marketing in some of these mainstream companies..

[bigjdawg]

thanx for the reply xx7R . i dont have the slightest clue what a draggon spider design is lol i think its the way they weive the spider mesh under the cone (cant think of the proper name 4 it). i been lookin around for the best way to tune my amp with not much success . these kenwoods have been really good to me , turnin heads everywhere , but the 2 are getting lonely so i got two more on the way to give them some company lol , all i have is the one 1800w amp for now till i get more paper stacked up so i was wandering if it'd be ok to run all 4 off one 1800w amp till i get the second one , and what would be the best way to wire them so i dont fry anything , all 4 subs are 4ohm svc and the amp is stable down to 1ohm , ive been told i could put three 12's wired to 1.33 ohms on this particular amp but i dont like odd number subs .

any advice is appreciated and applied if applicable to my situation . thanx