six 10 or one 18
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0 Watt CAFz'r
Joined: May 2010
Posts: 31
Six DVC 4 ohm subs wires into either 1.3 or 0.33 ohms. Your amp does 800W x 1CH @ 4 ohms or 400W x 2CH in 2 ohms. You can't use 6 DVC 4's with that amp because it isn't stable below 2 ohms. A DVC 2 ohm sub wires into 1 or 4 ohms so it would be a good match for 800W @ 4 ohms. If you want to use six 10's with daily-driver power, consider six SSA DCON 10's (SVC 4 ohm) @ 0.67 ohms / 1800W RMS.
Wiring your subs: Dual Voice Coils PinQ
Wiring your subs: Dual Voice Coils PinQ
RE REX 10" 175W RMS
Efficiency 1W/1M 84.7 dB
Effective Piston Area Sd 322 cm^2
Equivalent Compliance Vas 75.6 liters
XMAX 12MM
RE SX 18" 1000W RMS
Efficiency 1W/1M 92.7 dB
Effective Piston Area SD 1210 cm^2
Equivalent Compliance Vas 159 liters
XMAX 22MM
You can give 1.16 cubes before port to each REX or 7.28 cubes before port to the SX 18 so 6 cubes to the 10's and 7 cubes to the 18.
The SX is .5 dB louder than 6 10's (starting efficiency).
The 10's move 10.4 cubic feet more air (comparing VAS).
This means above the port tune the SX 18 should be louder but below the port tune the 10's would be louder.
The 10's would probably have better transient response, be less peaky, sound better, and dig lower. You can't go wrong with an SX 18 though. If you think you'll upgrade later than buy the SX 18. If you want a solid SQ system than get the 6 10's.
Efficiency 1W/1M 84.7 dB
Effective Piston Area Sd 322 cm^2
Equivalent Compliance Vas 75.6 liters
XMAX 12MM
RE SX 18" 1000W RMS
Efficiency 1W/1M 92.7 dB
Effective Piston Area SD 1210 cm^2
Equivalent Compliance Vas 159 liters
XMAX 22MM
You can give 1.16 cubes before port to each REX or 7.28 cubes before port to the SX 18 so 6 cubes to the 10's and 7 cubes to the 18.
The SX is .5 dB louder than 6 10's (starting efficiency).
The 10's move 10.4 cubic feet more air (comparing VAS).
This means above the port tune the SX 18 should be louder but below the port tune the 10's would be louder.
The 10's would probably have better transient response, be less peaky, sound better, and dig lower. You can't go wrong with an SX 18 though. If you think you'll upgrade later than buy the SX 18. If you want a solid SQ system than get the 6 10's.
Last edited by Lord Huggington; Nov 29, 2010 at 11:51 PM.
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