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Wiring Up Subwoofers

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Old Jan 16, 2007 | 09:08 AM
  #1  
k_e_ii_t_h's Avatar
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Wiring Up Subwoofers

I need help please, I'm all new at this, Right now i'm notm sure how its all wiring, but it dosent pound very much, you cant even hear it outsode of my car very much....

here what I got

SUBWOOFER- 2-10" phoenix gold octane r10d /ported bassworx box

Specs:
# RMS Power: 200 WATTS
# Max RMS Power: 200 WATTS
# Maximum Power: 400 WATTS
# Impedance: DUAL 4 OHM VOICE COIL
# Sealed Box Volume (cubic feet): 0.4 - 0.45 CU FT
# Ported Box Volume (cubic feet): 0.95 - 1.25 CU FT
# Port Diameter (inches): 3"
# Port Lenght (inches): 8" - 9"
# Free Air: YES
# Dual Voice Coil: YES
# Sensitivity: 90dB
# Frequency Response:
# Diameter: 10"
# Mounting Depth: 5 5/8"
# Cutout Diameter: 9 1/4"
# Vas (liters): 34.7523 LITERS
# Fs (Hz): 31.388 Hz
# Qts: 0.52
# Xmax (milimetters): 25MM

AMP- Kenwood kac-728s

Specs:
Car Amplifier(kac729s) Features :

GENERAL FEATURES :

Ground Isolation Circuit

Power MOSFET Switching Power Supply

Stereo, Mono, or Tri-Mode Operation

POWER RATINGS :

Bridged Power Output at 14.4V (1kHz, 0.8% THD): 300 Watts x 1

Maximum Output Power: 600 Watts

Power Output at 2 Ohms, at 14.4V (1kHz, 0.8% THD): 150 Watts x 2

Power Output at 4 Ohms, at 14.4V (20Hz-20kHz, 0.08% THD): 100 Watts x 2

AUDIO FEATURES :

Quiet Turn-On

RCA Audio Inputs: Gold-Plated

Speaker Connectors: Gold-Plated, Screw-Type

Speaker Level Input Terminals: Screw-Type

Speaker Relay Protection

POWER SUPPLY FEATURES :

2-Ohm Stable

Black Powder-Coated Top Cover: with Sandblast Finish

Copper EE-Core Power Transformer

Noise Supression Filter: Large Toroidal

Power Indicator

Power Input Terminals: Gold-Plated, Screw-Type

Secondary Capacitors: 2 Large
Old Jan 16, 2007 | 09:20 AM
  #2  
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So how is it wired now?
Old Jan 16, 2007 | 10:41 AM
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SIMPLIFY.

Two 10" subs, each 4 ohm dual voice coil.
wire the coils in paralel for two, 2 ohm loads.
Then wire one sub to each output of the amp.

That amp will give you 150 w rms on each sub.

OR, you could wire the two, 2 ohm loads in series for a 4 ohm load and run the amp bridged, but still,
it's 150 wrms per sub.

No, that's not much. No, you won't hear it outside the car.
Old Jan 16, 2007 | 11:00 AM
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One of my friends said wire them at 2ohms mono....Right now i'm not sure how it's wired, the subs came already in the box, so I just put +- wires from each sub box terminal to the amp terminal for both L+R....Id atleast like to know how to wire it to get 150 watts to each sub insted of the 100 watts it may be getting now
Old Jan 16, 2007 | 11:20 AM
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You won't be able to get a 2-ohm load (mono, anyways) with dual 4 coils... you can either get a 1 or 4 ohm load by wiring the subs together, or the mentioned 2 ohm load per sub if you wire one to each channel. Following the suggestions above would be your best bet.
Old Jan 16, 2007 | 11:24 AM
  #6  
k_e_ii_t_h's Avatar
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Originally Posted by Tom.F.1
SIMPLIFY.

Two 10" subs, each 4 ohm dual voice coil.
wire the coils in paralel for two, 2 ohm loads.
Then wire one sub to each output of the amp.

That amp will give you 150 w rms on each sub.

OR, you could wire the two, 2 ohm loads in series for a 4 ohm load and run the amp bridged, but still,
it's 150 wrms per sub.

No, that's not much. No, you won't hear it outside the car.
can you show me a diagram on how to do that, im a newb at all this, and how do I wire them, do i remove the subs from the box n stuff?

http://www.crutchfieldadvisor.com/ISEO-rgbtcspd/learningcenter/car/subwoofers_wiring.html
Old Jan 16, 2007 | 01:46 PM
  #7  
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How's this: dual 4 ohm coils = 2 ohm load
Attached Thumbnails Wiring Up Subwoofers-sub.jpg  
Old Jan 16, 2007 | 02:01 PM
  #8  
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If you put 2, 2 ohm loads in series, you'll have 1 ohm load.

So, if you want more power on the same subs, you can BUY a mono amp that does 600 rms @ 1 ohm.

Hifonics BXI606D 600 Watt x 1 RMS @ 1-Ohm Amplifier
Old Jan 16, 2007 | 02:35 PM
  #9  
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Really I have no clue what ytour talking about, your picture is confusing and theres only one subwoofer, I have 2, if you wouldn't mind could you find a better picture or even draw one in paint, or pick one from that site, like I said, I'm brand new at car audio...
Old Jan 16, 2007 | 04:47 PM
  #10  
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wire each sub like this to its own channel


what deck do you have? changing that may help make your subs louder as well



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