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HELP - Subs not loud


Hobbs155

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If its aeros i would tune lower than youu think you want to so you can cut off the pipe as you are tuning till you find a tuning you like the shorter the pipe the higher the tuning. The main thing is that you cant put pipe back on, but you can take it off.

Edit: idk about daily use but on the TL those "elbows" to bend the pipe lower your score

145.9@40hz

145.3@34hz

big 3

X2 group 34

Deka Group 31

All 0/1 awg jl meta wire

Alpine CDA 7894

Orion HCCA D5000

2 AQ HDC312's

Crunch gpv1100.2 (for 6.5"s only)

AQ pro audio 6.5" - 3 sets

AQ supertweeters - 2 sets

2000 Slamry

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Mmm ok, because I read that the port should be one port diameter away from any thing, I think my box my be to shallow to fit a long port.

HU: Alpine CDA-9886 with Imprint Module

Fronts: Alpine SPR-60C

Rears: Alpine SPR-60

Amps: Alpine PDX4.150 and ICE Power 20000D

Subs: 1 x 15" Rockford T2D215

Big 3 Upgrade 0/1 AWG

2 Farad Cap

Wiring 2 AWG

120Amp ALT

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external: 36cm x 38cm x 96.5cm

correct?

we don't have 3/4inch MDF in Australia (19mm) we have 18mm.

so internal is 32.4 x 34.8 x 45.5 per chamber.

meaning each chamber is 51 litre before displacement, which is a bit smaller than I would have done, but should be fine.

I'd tune to about 35Hz, as the chambers are smaller than ideal.

minimum a single 4inch port per chamber, which needs to be about 36cm long.

a 3inch diameter, 3.5inch long port would tune the box to like 45Hz :P

What would you say would be the ideal box for these subs? I have clearly messed up the first enclosure, It looks like putting in a 4" port that is 36cm long, is going to be too close to the back of the box.

HU: Alpine CDA-9886 with Imprint Module

Fronts: Alpine SPR-60C

Rears: Alpine SPR-60

Amps: Alpine PDX4.150 and ICE Power 20000D

Subs: 1 x 15" Rockford T2D215

Big 3 Upgrade 0/1 AWG

2 Farad Cap

Wiring 2 AWG

120Amp ALT

Link to comment
Share on other sites

If its aeros i would tune lower than youu think you want to so you can cut off the pipe as you are tuning till you find a tuning you like the shorter the pipe the higher the tuning. The main thing is that you cant put pipe back on, but you can take it off.

Edit: idk about daily use but on the TL those "elbows" to bend the pipe lower your score

At the moment i'm trying to use PVC pipe to get the correct lenght and tuning and then go out and buy proper aeros and cut them to the correct size. Do you think i'm going wrong here?

HU: Alpine CDA-9886 with Imprint Module

Fronts: Alpine SPR-60C

Rears: Alpine SPR-60

Amps: Alpine PDX4.150 and ICE Power 20000D

Subs: 1 x 15" Rockford T2D215

Big 3 Upgrade 0/1 AWG

2 Farad Cap

Wiring 2 AWG

120Amp ALT

Link to comment
Share on other sites

HU: Alpine CDA-9886 with Imprint Module

Fronts: Alpine SPR-60C

Rears: Alpine SPR-60

Amps: Alpine PDX4.150 and ICE Power 20000D

Subs: 1 x 15" Rockford T2D215

Big 3 Upgrade 0/1 AWG

2 Farad Cap

Wiring 2 AWG

120Amp ALT

Link to comment
Share on other sites

No you only have 2.99 sq in of port per cu ft . You need between 9-12 sq in of port. Youll prob need 3-4 ports. Ill put your dimensions in torres when i get home in a min. Im mobile rite now

145.9@40hz

145.3@34hz

big 3

X2 group 34

Deka Group 31

All 0/1 awg jl meta wire

Alpine CDA 7894

Orion HCCA D5000

2 AQ HDC312's

Crunch gpv1100.2 (for 6.5"s only)

AQ pro audio 6.5" - 3 sets

AQ supertweeters - 2 sets

2000 Slamry

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Share on other sites

Is there any way to let some of your ports be external? That seems like the only way to make it happen. :(

145.9@40hz

145.3@34hz

big 3

X2 group 34

Deka Group 31

All 0/1 awg jl meta wire

Alpine CDA 7894

Orion HCCA D5000

2 AQ HDC312's

Crunch gpv1100.2 (for 6.5"s only)

AQ pro audio 6.5" - 3 sets

AQ supertweeters - 2 sets

2000 Slamry

Link to comment
Share on other sites

HU: Alpine CDA-9886 with Imprint Module

Fronts: Alpine SPR-60C

Rears: Alpine SPR-60

Amps: Alpine PDX4.150 and ICE Power 20000D

Subs: 1 x 15" Rockford T2D215

Big 3 Upgrade 0/1 AWG

2 Farad Cap

Wiring 2 AWG

120Amp ALT

Link to comment
Share on other sites

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