TC2+ in 60 liters sealed box

[ZACC]

Hi

I've been simulating a bit and find this to be one way to go.
Unibox says that Qtc is 0,694 when fully filled with damping.

Now to my question: The response is 10dB down at 20Hz, is that too much? 2 boxes are going to be built, placed in the corners behind my front speakers.

I've only built a bassreflex sub before, with F3 around 18 Hz, so maybe you understand my worries...
The sub's are going to be used in my HT, the room is 22 m².

So, should I go 60 L sealed or about 100 L bassreflex?

Z 😕

 

[Al Garay]

What about doing passive radiator (PR) instead? Should give you better response at 20Hz in a smaller box similar to the AV12.

 

[Kluminati]

10DB down from 20hz seems like a lot maby while your buying everything might want to pick up an equilizer to fix that and flatten out the curve or even better go for a bigger box if you want to get lower.

 

[454Casull]

Room gain will help you out. Depending on your room, it might be 6-10dB or more at 20Hz.

 

[mike.e]

For HT id consider my SPL requirements. IF they were low,Id go sealed and some room gain will help. Otherwise id go ported,and consider a PR if required,as small box,high power,low tuned subs often require them.

 

[simon5]

10 dB down at 20 Hz versus what? 100 Hz? If yes, it's too much for me, but maybe not for you. I'm 5 dB down at 20 Hz versus 100 Hz.

 

[mike.e]

Also consider that a tiny sealed box with a radiator doing high excursions will result in large amounts of 2 HD , since the driver is a low distortion one id consider this issue also
see linkwitzlab.com

 

[ZACC]

Thanks for all input.

I'm 10 dB down at 20 Hz vs. 100 Hz.
Now I'm thinking of buying a Thommessen Subway X crossover

Level Bass-EQ
The amount of bass boost is adjustable up to +6dB.

Freq Bass-EQ
The bass boost center frequency is adjustable from 20Hz-40Hz

Maybe this is one way to go...

Z