New high-power plate amps from Adire... (1 Viewer)

[RobLJ]

Dumb question, but my Onkyo receiver only has one subwoofer out RCA jack on it. How would I go about getting a signal to the amp? I'm starting to think about 2 Tumults for my living room.

 

[Robert_J]

Y-adapter

-Robert

 

[RobLJ]

Thanks for the info.

 

[DanWiggins]

David,

They clip "nicely". Just start cutting off the top of the sine waves. No ringing or overload or clamping to a power supply. Just what you would expect.

Rob,

Just use one of the inputs. You don't have to use both; the amp internally sums the two inputs into a mono signal. If you have an LFE/single sub output, just plug it into one of the RCAs.

Dan Wiggins
Adire Audio

 

[Allen Ross]

you don't need to use both inputs on the amp, the receiver adds the signals and spits out just one.

 

[Jack Gilvey]

Will the rumble filter be easily customizable like the LT? Easy places to "stuff" the components?

 

[DanWiggins]

Jack,

You can tack different resistors in parallel if needed, as well as caps. But it's now set to 2 Hz, so unless you're looking to move it up in frequency, it's no longer an issue in terms of cutting off bass.

Dan Wiggins
Adire Audio

 

[Jack Gilvey]

Understood...thinking of reflex apps.

 

[Bryan Michael]

will the 1200 wat amp push a Tumult to its x max in a ported box? or would a good pro amp like the 3400 qsc amp be better. rember fan noise is not a problem. and i want to go with at least 2 Tumult or 4 av15

 

[DanWiggins]

Jack,

No problem, simply tack a pair of resistors on the back of the board to raise the cutoff frequency as needed...

Bryan,

6 cubic feet, tuned to 16 Hz (30 square inches of port, and a port length of 46.5 inches) should do the trick. Full excursion down deep!

Dan Wiggins
Adire Audio

 

[David_P]

make that 5 "unofficial" Adire alignments for ported Tumults

3 ft^3-18hz (33sq in port 80" long
4 ft^3-16hz (with same slot port, lower group delay)
5 ft^3 18hz (35sq in port 51" long)
6 ft^3 17 hz (described as being linear to completely stupid levels, no port dimensions given)

and now
6 ft^3 16 hz (30 sq in 46.5" long, excursion matching capabilities of ADA-1200)

Have any of these actually been built and listened to? by Adire? Or are they theoretical only? If built, how did they sound?

David