A CS3310 chip is around $10 - expensive compared to most things in a preamp but it does a pretty good job. A CS3318 is even better - so no need to worry about this issue on newer equipment (since 2000). Many high end HT preamps use this.
I would stay away from home made mechanical volume controls as you could so easily blow your speakers. The CS chips also allow programming of volume limits to each individual source and a volume reset on power up - all invaluable stuff for anyone who has blown a tweeter because the volume knob was in the wring place.
I would stay away from home made mechanical volume controls as you could so easily blow your speakers. The CS chips also allow programming of volume limits to each individual source and a volume reset on power up - all invaluable stuff for anyone who has blown a tweeter because the volume knob was in the wring place.