Presonus Eris 4.5 Monitors

Features
Presonus Eris 4.5 Inch Active Multimedia Monitors, Pair
4.5-inch woven composite low-frequency transducer
1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer
Rear-firing acoustic port for superior bass-frequency reproduction
Optimized, resonance-suppressing internal bracing
100 dB maximum continuous SPL
HF Driver Adjust (±6 dB, continuously variable)
Midrange Driver Adjust (±6 dB, continuously variable)
Highpass filter (Off, 80 Hz, 100 Hz)
50 watt Class AB biamplification
RF interference, output current limiting, over-temperature, transient, and subsonic protection
Amplifier ‘soft start’ feature eliminates popping on power-up
Internal power supply with IEC connector
Power switch with on/off LED
Balanced ¼-inch TRS and unbalanced 1/8-inch TS, RCA inputs
1/8-inch stereo headphone output

Specifications
Presonus Eris 4.5 Inch Active Multimedia Monitors, Pair
Inputs
1- Stereo 1/8″
2- Balanced ¼ ” TRS
2- Unbalanced RCA
Performance
Frequency Response: 70 Hz – 20 kHz
Crossover Frequency: 2.8 kHz
LF Amplifier Power: 25W/speaker
HF Amplifier Power: (not biamped)
Peak SPL (@ 1 meter): 100 dB
LF Driver: 4.5″ Kevlar
HF Driver: 1″ silk dome
Input Impedance: 10 kOhms
User Controls
Volume Range: A-type taper
MF Control: Variable (-6 to +6 dB)
HF Control: Variable (-6 to +6 dB)
Low Cut: Flat, 80 Hz, 100 Hz
Protection
RF interference
Output-current limiting
Over-temperature
Turn-on/off transient
Subsonic filter
External mains fuse
Power
100-120V 50/60 Hz or 220-240V 50/60 Hz
Cabinet
Vinyl-laminated, medium-density fiberboard
Physical
Width: 6.42″ (163 mm)
Depth: 7.09″ (180 mm)
Height: 9.45″ (241 mm)
Weight: 13 lb. (5.9 kg)