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Multi-Way Conventional loudspeakers with crossovers

Attenuating a high efficiency driver
Attenuating a high efficiency driver
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Old 11th May 2019, 11:29 PM   #1
jimk04 is offline jimk04  United Kingdom
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Join Date: Jul 2018
Location: North Notts
Default Attenuating a high efficiency driver

This may be a very simple one to most on here but I am new to all this so please have patience.

I have 20db gain in my tpa3255 amp and driving FR speakers of 91db I get some hiss ....music playing but at low level passes. No hiss with no music.

Playing through drivers of 88db (TB W3-871b) they are much quieter but I prefer the overall sound of the 91db ( Faital 3fe22).

Is it as simple as adding an R inline to the speaker input to Lower this hiss...or will this also lower the sparkle of the highs that I like of the 3fe22?

I do have an LCR on the +ve to each speaker....I think this is BSC.

Regards
James

Last edited by jimk04; 11th May 2019 at 11:32 PM.
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Old 12th May 2019, 12:37 AM   #2
R Kneck is offline R Kneck  United States
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Join Date: Mar 2005
Location: South Carolina, USA
I wonder if the mods could move this to the class d section? Many helpful and knowledgable people there.
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Old 12th May 2019, 09:40 AM   #3
TBTL is offline TBTL  Germany
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Join Date: Oct 2013
An L-pad would be a better option, as it ensures that the loudspeaker still is driven by a reasonably low impedance source.
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Old 12th May 2019, 11:35 AM   #4
AllenB is offline AllenB  Australia
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Join Date: Oct 2008
An L-pad would be better but there may still be variations in the response. If this is a problem it will need more circuitry. Or, you could work on the amp.
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