Presonus Eris-series studio monitors are used worldwide by Studio engineers who need to hear every detail of their recordings. Ideal for gaming and home video production, The Eris E3. 5 delivers studio-quality sound yet is compact enough to fit almost anywhere. You get the flexibility of rear-panel, ¼-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 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 50W (25W/side) class AB power amp.