The PreSonus Eris E4.5 is a pair of 4.5" studio monitors that consist of one active E4.5 and one passive E4.5 which deliver a smooth and accurate frequency response to reveal what’s really in your tracks and mixes.
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Eris E4.5
Studio Monitor Amp
Buy PreSonus Eris 4.5HD 2-Way Studio Monitors - Single - Open Box
PreSonus Eris E4.5 2-Way Active Studio Monitors
PreSonus Eris E4.5 2-Way 4.5 Near Field Auxiliary Studio Computer
PreSonus 2x Eris E4.5 HD 2-Way 4.5 Active Studio Monitor with
Pair Presonus Eris E4.5 BT 50w 2-Way 4.5 Near Field Studio
PreSonus Eris E4.5 4.5 inch Powered Studio Monitors