Welcome (back) to Linear Audio, your tech audio resource! Volume 3 is already our fourth issue! At 188 pages, Vol 3 packs another smorgasbord of stimulating, interesting and thought-provoking articles. Why 'tweaks that cannot work' can still sound different, digital interpolation, class-A thermal case design, mic preamps. Headphone preamps with in-ear equalization, correcting cartridge (and speaker) resonances, passive I/V conversion, active subwoofer design, a simulated inductor and a low noise preamp for your test bench. Then an essay on the state of analog and digital audio, and closing with two book reviews. Another issue you'll want to have at your side so you can grab it again and again. Enjoy!