2 Questions, How to connect subs, and how do you know how many ohms you want?

 

Bronze Member
Username: Thejoester101

Post Number: 13
Registered: May-06
These are the full specs of the speakers:
XS-LD125P5 sony explodes

# P5 Rigid Aluminum Deposition Cone Design
# Dual 4-Layer Voice Coils
# Durable Foamed Rubber Surround with Stroke Stabilizers
# Double Damper Suspension
# Dual Stacked Magnets
# Gold-Plated Binding Posts
# Rear Voice Coil Vent with Vented Heat Sink
# Optimized for both Small Sealed and Ported Enclosures
# Mounting Depth: 5.88"
# Rec. Sealed Box Dims: 1.00 cu.ft.
# Rec. Ported Box Dims: 1.50 cu.ft.
# RMS Power Range : 125-500 Watts
# Peak Power Handling: 1400 Watts
# High Frequency Response: 2500 Hz
# Low Frequency response: 18 Hz
# Impedance: 4 Ohm


specs for amp:
sony XM-2002GTR
# 200 watts RMS x 2 at 4 ohms
# 250 watts RMS x 2 at 2 ohms
# 500 watts RMS x 1 at 4 ohms (4-ohm stable in bridged mode)
# Low-pass crossover (50-300 Hz, 12 dB/octave)
# Variable bass boost (0-10 dB at 40 Hz)
# MOSFET outputs and power supply
# Speaker-level inputs with signal sensing for automatic turn-on
# Preamp inputs and outputs
# Fuse rating: 40A x 2
# CEA-2006 compliant
# Wiring and hardware not included with amplifier
# Dimensions (W x H x D): 15-7/8" x 2-1/4" x 10-7/8"

I have two questions, on is I want to connect my two subwoofers to the amp. What is the best way to do this and at how many ohms. And then the second question is, If i connect at different ohms what will be different in the sound of the subwoofers?
 

Silver Member
Username: Van_man

Boston, MA

Post Number: 382
Registered: Mar-06
the best you will get with that combo is:
hook each sub up to each channel. # 200 watts RMS x 2 at 4 ohms

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Bronze Member
Username: Thejoester101

Post Number: 14
Registered: May-06
how do you do that, series or parallel?
 

Silver Member
Username: Van_man

Boston, MA

Post Number: 391
Registered: Mar-06
neither. put one sub one one channel. 2nd sub on 2nd channel. If you seies them load will be 8 ohm load. in Parallel it would be a 2 ohm load. So you would have both subs on 1 channel at 2 ohms at 250 watts plit by 2 = 125wrms to each sub. If you had four subs you could use both channels like that. but only 2 subs, the best is 1 sub on each channel. Or use 1 sub and bridge the amp for 1x500@4ohms.
 

Bronze Member
Username: Thejoester101

Post Number: 15
Registered: May-06
Hey again, what do i do with the other + and - connectors. I have two sets on each subwoofer since it's a voice coil. Do i leave one set unplugged, (disconnected)?
 

Bronze Member
Username: Thejoester101

Post Number: 16
Registered: May-06
sorry to correct myself ^^^ its a DUAL VOICE COIL
 

Bronze Member
Username: Thejoester101

Post Number: 17
Registered: May-06
Would it make a difference if i left one set disconnected?
 

Silver Member
Username: Van_man

Boston, MA

Post Number: 394
Registered: Mar-06
brigge the amp and wire like this..
250 to each sub.

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Bronze Member
Username: Thejoester101

Post Number: 19
Registered: May-06
But this is a 1 ohm load. I need a 4 ohm load.
 

Silver Member
Username: Van_man

Boston, MA

Post Number: 395
Registered: Mar-06
check it out

http://www.crutchfieldadvisor.com/learningcenter/car/subwoofers_wiring.html?subs =2&impedance=DVC4x2
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