Warren's EA 30 Washburn electro-acoustic. Woz used this to record his acoustic guitar parts on The Vibratos album. Although it has a narrow width body, it works well on mic and has a clear, defined tone. Hank was so impressed with what he heard of it on certain tracks that Warren had produced for his last album that he asked him specifically how he had achieved the acoustic guitar sound. Well, here's your answer, Hank!