Presonus Eris E5 The Eris E5, takes up just 7 x 10.24 x 7.68 inches (178 x 260 x 195 mm). The E5 sports a 5.25-inch, Kevlar low-frequency driver, mated with a 45W, Class AB amplifier; and a 1-inch (25 mm), silk-dome tweeter powered by a 35W, Class AB amplifier. It can crank out a clean 102 dB SPL, peak. Frequency response is rated at 53 Hz to 22 kHz. For a studio monitor in its size and price class, that’s impressive. Eris speakers have front-ported enclosures made of vinyl-laminated, medium-density fiberboard (MDF).
With three different types of audio inputs, it’s easy to feed audio to your Eris monitors from a mixer, an interface, a media player, or almost any other line-level source.
The Eris E5 provides balanced XLR, balanced ¼” TRS, and unbalanced RCA line-level inputs. When both balanced connections are in use, the TRS input will supersede the XLR input. The RCA input is summed into the signal path.
With this selection, you’ll have no problem hooking your Eris speakers up with virtually any line-level source. (If your signal source has unbalanced, ¼” TS outputs, simply use a ¼”-to-RCA adapter or adapter cable.)
All Eris speakers provide three EQ controls in their Acoustic Tuning section: High, Mid, and Low Cutoff. These controls enable you to fine-tune the monitors and even to broadly approximate the sounds of different types of speakers so you can hear what your mix might sound like, for instance, on a car stereo or portable radio. The Low control also is useful when using the Eris with a subwoofer.