The Sennheiser e 609 is a side‑address dynamic supercardioid microphone designed primarily for guitar cabinets and close‑miking loud instruments, using a flat-front profile that lets it hang directly against a speaker grill without a separate stand. Its supercardioid pattern provides strong isolation from stage bleed, and the capsule’s rugged build with a hum‑compensating coil helps reduce interference in live environments. The mic has a frequency range of 40 Hz to 15 kHz, a sensitivity of about 1.5 mV/Pa, and a nominal impedance of 350 ohms, making it easy to drive through standard mic preamps via its XLR connection. Weighing roughly 5 ounces and measuring about 5 inches long, with a front face around 2 inches wide, the e 609 is lightweight but durable, offering fast transients and high SPL handling that suit guitar amps, toms, snares, and other focused instrument sources.