Originally Posted by: JFRICKA Powerbrake would be your best option then.....There's really not much of a difference in volume between 50 watts and 100 watts. Sounds crazy I know....

Due to the logarithmic nature of hearing sensitivity, reducing the power by half only makes a barely perceptible drop in 'volume'. To get 1/2 the apparent volume, you have to reduce the power by a factor of 10. You need a good attenuator.