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Class D Switching Power Amplifiers and Power D/A conversion

Using bluetooth
Using bluetooth
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Old 24th November 2015, 07:13 PM   #1
intensate is offline intensate  United Kingdom
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Default Using bluetooth

Hello all. I want to use a class d amp with built in bluetooth.
I have never used or owned a bluetooth device so I know nothing

If I was to connect my phone to a bluetooth device ,will it sense the level of volume of phone or would I still need a separate volume control for the amp?
thanks all
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Old 24th November 2015, 11:34 PM   #2
doctormord is offline doctormord  Germany
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Bluetooth uses its "own" volume control by meaning that the source (i.e. phone) controls the volume of the bluetooth link. An amps volume control will then set the "final" volume by its own pot. (Like the maximum allows volume)
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Old 25th November 2015, 09:14 PM   #3
intensate is offline intensate  United Kingdom
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Default latest project

thanks for that info.
This is the reason .
I want to put a bluetooth amp inside this 1960's belling heater.
i will add a 5" sub and a pair of 2" Bose speakers and leds to bling it up.
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Old 25th November 2015, 09:51 PM   #4
voltwide is offline voltwide  Ireland
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Quote:
Originally Posted by intensate View Post
thanks for that info.
This is the reason .
I want to put a bluetooth amp inside this 1960's belling heater.
i will add a 5" sub and a pair of 2" Bose speakers and leds to bling it up.
No good idea to put a bt module into a full metal screening enclosure
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Old 26th November 2015, 12:07 PM   #5
Jerms is offline Jerms  United Kingdom
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If it's like one I've just seen on the-bay, it's 24" tall. Double that and you've a 48" line length. What's the diameter of the main tube?

If you could match the diameter with some plastic tube, then you could extend both the height and line length and give yourself room to installl BT amp and the small speakers.

J.
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Old 26th November 2015, 03:55 PM   #6
radiosmuck is offline radiosmuck  Canada
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I would try, I think it should work.
I super glued a similar BT amp board to the side of a metal cased speaker and it worked even though the line of sight from the bt transmitter to the receiver, 20 ft away, was hidden by both the metal speakers. Even a metal biscuit tin over the receiver did not interfere.
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Old 26th November 2015, 09:09 PM   #7
intensate is offline intensate  United Kingdom
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Hello Jerms ,its 5" diameter.
I was going to fit amp at bottom where there are the ventilation holes so I hope that won't block the bt?
thanks everyone
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