On Nov 30, 9:31*pm, Michael Karas wrote:
In article fb276a59-3400-46c7-bc6e-c8defdfd9de0
@q30g2000yqj.googlegroups.com, says...



I use Direct TV satellite receiver.

Anybody have a ??update.pkg file I can download through the monitor's
USB port to change what they gave me? Seriously, above 4 or 5 the
sound HURTS your ears, like a Rock Concert! *So need an easy way to do
this.

Highly unlikely that you'll find a "software" solution. Actually I say
no chance.

What I would do is to open up the unit and put 8 ohm 15 or 20 watt power
resistors in series with one side of each of the speaker connections. If
the speakers are already 8 ohm units that will cut down the power
delivered to the speaker to half. If the speakers are some other
impedance then adjust the ohms value of the resistors to match so as to
get the approximate power reduction to the speakers.

I suggest this approach because normally there are easily accessible
wire harnesses that go to the speakers that you can break into and add
the power resistors. Trying to apply some type of attenuation within the
PC board, hardware wise, would be a much more complex thing to puzzle
through even if you had access to good schematics and tools to work with
the SMT circuitry that is used in almost all devices these days.

--

Michael Karas
Carousel Design Solutionshttp://www.carousel-design.com

Thank you for suggestion.

Just didn't want to 'cut' into the unit. Your suggestion of
interrupting lines to speakers has its advantages. Just there's no
place to mount the parts. But may not matter, SMT is not as robust
physically as the older through hole stuff. Trace widths thinner,
adhesion sucks.

Reluctant to play with the damping to the speakers. Can't believe
damping is much of an issue here, because playing with the BASS TREBLE
controls did not appreciably change intelligibility of the speech.
Adding a resistor decreases damping, especially if the speakers are
driven from a low impedance source. Plus speaker impedances are all
over the place, so can't even count on a half voltage drop, right?
Half voltage, quarter power, only a 6dB drop, but may be enough to
move the range to a comfortable listening zone. I might try 16
parallel to 8 to speaker just to keep everything 'right' but if driven
by solid state the 16 parallel is a waste.

Wow 25 watt are going to be fairly large. Which would you recommend:
Brown ceramic, or the aluminum 'quanset' hut ones? Tucked inside a
shrink tube, won't even cool very well. Only saving grace is that 1
watt of sound for us hurts! Easily listen in the 10-20mW range and at
night could be as low as 2-5mW. Keep in mind we clearly hear headsets
playing at normal volume from across the room.

Regards,
Robert