[sdiy] OT: passive headphones attenuator

[Czech Martin]

The dynamic speaker principle in the headphone will
demand some damping to give the usuall response.
Adding a resistor will ruin this damping,
as a result the motor resonance will be more pronounced.
This is really a trick to beef up a bass response.

So, the potentimeter approach seems better, since the
output impedance can be chosen.

m.c.

-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Ingo Debus
Sent: 23 August 2004 14:40
To: synth-diy
Subject: [sdiy] OT: passive headphones attenuator


Hi all,

I want to build an "adjustable passive headphones attenuator", in other 
words, a pot (between amp and headphones) to control the volume. Which 
is preferable here, a true potentiometer or a variable resistor in 
series with the headphones? And which pot value? I don't need the 
volume control go down to zero.

Ingo