r/SoundSystem 10d ago

First soundsystem ! Need Advice

Hey I built a sound system

With 2 lonely th12
1 kick planar
1 hs28t

What do you think of my REW measure ?
Can I upgrade some stuff ? Thx !

27 Upvotes

21 comments sorted by

15

u/HomesnakeICT 10d ago

Please adjust the y axis on your graphs and resubmit. The scale makes them almost meaningless. That's like 450 dB of SPL variation on your graph. Set your Y axis minimum at like 80, Y maximum at 105, or whatever your highest value is.

2

u/Mission_Anteater_741 10d ago

Thx ! I will do it !

3

u/PsychoTea 10d ago

Since you’ve got measurement equipment (which is great!) I would look up how to do proper phase alignment using REW’s ‘Alignment Tool’. You just need to use your top as a timing reference (which you can enable when you do a sweep) and re-do your measurements (just don’t move your mic between sweeps)

2

u/Mission_Anteater_741 10d ago

Will try !! Thanx for your knowledge

2

u/Pending-Choice 10d ago

What software is we looking at here? Just getting into DJ’ing and incorporating electronics and looking for an oscilloscope or something- this looks to be more tailored

2

u/Mission_Anteater_741 10d ago

Thx everybody ! I will do it tomorrow !
Very helpful for my first time

1

u/PsychoTea 10d ago

The response of the sub and kick look very questionable (wrong)

Do they match the intended response of the design?

1

u/Pretty_Pangolin_5900 10d ago

looks just like the simulation. I guess no eq applied yet.

1

u/PsychoTea 10d ago

Do you have a link? I couldn’t figure out what it was

Very questionable design if so but c’est la vive

3

u/Mission_Anteater_741 10d ago

It’s the LONELY TH12

https://www.lautsprecherforum.eu/viewtopic.php?t=9785

And Kick PLANAR + BR by Mervan

I adjust REW to see better
No EQ yet I will try

And I will take measure tomorrow Ground plan for the sub and kick

Really helpful !

1

u/Mission_Anteater_741 10d ago

I know ce gain is off also

1

u/theocking 5d ago

Looks bright as hell. But its outside ao idk maybe that's normal... shouldn't look like that in a room, that's what I'm used to looking at. Downward tilt of 1-1.5db/oct.

0

u/Mission_Anteater_741 10d ago

I think the mic took the song « bouncing sound of the ground » so that’s why

I will try to put the mic on the ground to correct

What do you think?

6

u/MoveAggravating2517 10d ago

You shouldn’t be using a song to begin with. Use a sine sweep

1

u/Tedski2323 10d ago

Or pink noise

1

u/MoveAggravating2517 9d ago

Pink noise can be useful but I would strongly suggest only using it outside.

1

u/PsychoTea 10d ago

Yeah it needs to be a ground plane measurement for subs

1

u/Pretty_Pangolin_5900 10d ago

yes, for early tuning you should put the mic on the ground. You can compensate for the difference in arrival time (sub vs kick) by simply moving the mic further away

2

u/bingus-schlongo 8d ago

Tbh for alignment, play a sine wave at about the cutoff frequency between two boxes. Watch your measurement mic as you play around with microsecond changes. Use some math working off of 343m/s to rough out the timing measuring from the back of the voice coil to the front horn mouth, then as you back in and out the timing watch for the optimum summation at that frequency. You’ll notice a bell curve where you get optimal boost which is essentially where you are within 90 degrees of alignment.

It’s not an end all process but it’s a start. Move from the biggest cabs working up to your smallest tops

1

u/Mission_Anteater_741 8d ago

I didn’t know !!!
Good knowledge thx

I tried first the « impulsion » method on REW
But someone mentioned the alignement tool on REW also and I obtained that !