Eris E3.5 delivers studio-quality sound yet is compact enough to fit almost anywhere. You get the flexibility of rear-panel, 1⁄4-inch TRS and RCA inputs; front-panel 1/8" stereo, unbalanced line inputs for use with mobile audio devices; a convenient front-panel volume control; and an integrated headphone amplifier. Fine-adjust the speaker's response with low- and high-frequency tuning controls. It may be small but the E3.5 is loud, as well as clear, thanks to a 25W/side Class AB power amp.