Attenuators v passive pre to reduce gain

[philv]

Hi,

possibly have a little too much gain with itargeted amp.

Now, i am only using it via amazon echo dot analogue out at present.
But i assume cd and streamer (airport express) will be similar.

What is best, rothwell attenuators or tilbury passive pre to reduce gain before integrated?

When just using the echo dot output, this can obviously be reduced by turning down the volume on the echo.
Is this better than setting at high volume and using attenuators/passive pre?

Thanks

[philv]

Amplifier -
Input impedence is 60k
100mv - input level at 1kHz for rated power output.
13mv - input level for 0dbw output both channels, with volume control at max.
8v - maximum input before input overload at 1khz.

Tilbury -
input impedance 10k.

Whatever that means!

[Mike Reed]

Afraid I've no idea of your situation, but when trying to reduce the gain from the 3.4V output of my CDP into my pre. (with VU meters), I tried 15 dB, 10dB and eventually settled on a 6dB in-line Goldenjacks attenuators. The first two showed s.q. loss but not the last, which I have now been living with for nearly a year.

Attenuators CAN affect dynamics, but seemingly not in small doses. No idea about a passive pre., which is essentially a pot, I guess. 'Orses for courses, I guess, but at least you have control with a pot.

[philv]

Afraid I've no idea of your situation, but when trying to reduce the gain from the 3.4V output of my CDP into my pre. (with VU meters), I tried 15 dB, 10dB and eventually settled on a 6dB in-line Goldenjacks attenuators. The first two showed s.q. loss but not the last, which I have now been living with for nearly a year.

Attenuators CAN affect dynamics, but seemingly not in small doses. No idea about a passive pre., which is essentially a pot, I guess. 'Orses for courses, I guess, but at least you have control with a pot.

The latest tilbury has a pot plus selectable fixed attenuation, so i guess everything to try in one box.
but min is 10db.

[Stryder5]

It's Tisbury unless your talking about the docks.....

[philv]

It's Tisbury unless your talking about the docks.....

I hate my malfunctioning iPad that ignores half my key presses and then guesses at what i wanted to type.

[Pharos]

Amplifier -
Input impedence is 60k
100mv - input level at 1kHz for rated power output.
13mv - input level for 0dbw output both channels, with volume control at max.
8v - maximum input before input overload at 1khz.

Tilbury -
input impedance 10k.

Whatever that means!

Your results can be achieved with a simple resistor in series with the O/Ps of your source device.
All O/Ps like to be loaded as little as possible, this reducing the current demands on the O/P cct, and placing a resistor in series with the O/P of your source will raise the effective I/P impedance (Z), that it 'sees', this is a benefit to the source circuitry.

You can just get a pot and use it as a rheostat, (adjustable series resistor) and approximate the condition you wish to achieve, and when you have done that replace it with a resistor. I would suggest a pot of 100k because it will give you quite a range of attenuation.

I'm sorry, but I've taken great care in using the qwerty to draw a cct diagram, but it becomes changed and unintelligible when I save it.

[Barry]

Amplifier -
Input impedence is 60k
100mv - input level at 1kHz for rated power output.
13mv - input level for 0dbw output both channels, with volume control at max.
8v - maximum input before input overload at 1khz.

Tilbury -
input impedance 10k.

Whatever that means!

Assuming the CD player has a typical output of 2V, this is some 13dB above what is required for full output from your amplifier.

I would suggest you fit a 50K Ohm potentiometer between the source (whatever you use: CDP, Echo Dot etc.) and the power/amplifier. This will give you some control of the volume level.

The Tilsbury is I believe a stepped potentiometer in conjunction with a switch to select the input source. As such it would be a neat solution to your problem.

[Stryder5]

Assuming the CD player has a typical output of 2V, this is some 13dB above what is required for full output from your amplifier.

I would suggest you fit a 50K Ohm potentiometer between the source (whatever you use: CDP, Echo Dot etc.) and the power/amplifier. This will give you some control of the volume level.

The Tilsbury is I believe a stepped potentiometer in conjunction with a switch to select the input source. As such it would be a neat solution to your problem.

Wasn't he the ""Dough Boy"

Gary

[philv]

Is the inout sensitive usually arrow d 200mv?
So 100mv for my amp would benefit from 3db attenuation?