Clean overall sound, smooth high end, and a wide sweet spot
Every Eris-series studio monitor utilizes a woven composite low-frequency driver. The weave and nature of the Eris E4.5 BT’s 4.5-inch woofer result in tight bass that you can feel, as well as cleaner overall sound. The one-inch silk-dome tweeter produces a smooth and refined sound, accurately reproducing transients and high frequencies. The tweeter is designed to radiate sound with a fairly wide pattern, creating a large optimal listening area, or “sweet spot,” so you can move around and still hear an accurate stereo image. With 25 watts per side of onboard power, the Eris BT-series monitor speakers pack a serious punch, while still delivering clear, accurate audio.
 
Easy-to-use controls.
A speaker’s response is affected by where you place it and the acoustics of your space. That’s why Eris E4.5 BT active media reference monitors offer controls to adjust the high- and low-frequency content, ensuring that your Bluetooth speakers always sound their best. A convenient front-panel volume knob sets both the speaker level and the integrated headphone amplifier’s level.
 
Convenient wireless Bluetooth connectivity.
With four different types of audio inputs, it’s easy to feed audio to your Eris E4.5 BT monitors from almost any source. Fast, reliable, stereo Bluetooth 5.0 connectivity lets you go wireless, streaming sound from a smartphone, tablet, laptop, or other Bluetooth source. Play games, listen to music, and even create content wirelessly. When you want a wired connection—say, from a computer, turntable, TV, or other line-level source—the Eris E4.5 BT has you covered, with rear-panel, left and right ¼-inch TRS and RCA inputs and front-panel 1/8” stereo inputs. A loud, clear, front-panel headphone amplifier lets you work and play in stealth mode, without disturbing your housemates.
 
Accuracy defined.
Like all PreSonus speakers, the Eris E4.5 BT offers consistent, accurate listening, with the smooth and even frequency response that has made Eris studio and media reference monitors popular around the world. Their compact and powerful design makes them an ideal solution for any small space. Want extra-deep low end? Pair compact Eris E4.5 BTs with our Eris Sub8 active subwoofer for a perfectly matched, full-range sound system that fits almost anywhere.
 
Features
Components and construction
4.5-inch (114 mm), 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
User controls
High- and low-frequency tuning controls
Front-panel Volume control for speakers and headphone amplifier
Bluetooth pairing button
Power and safety
50 watt (25W/side), 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
Inputs and outputs
​Stereo Bluetooth 5.0 wireless input
Balanced ¼-inch TRS, unbalanced 1/8-inch stereo, and RCA inputs
Integrated stereo headphone amplifier with front-panel 1/8-inch output
Included Accessories
Speaker wire
1/8-inch TRS to Stereo RCA cable
Stereo RCA to Stereo TS cable
Studio One® Prime and Studio Magic Software Suite ($1,000 value!)
 
Technical Specifications
Inputs
 
 
Bluetooth 5.0
 
1- Stereo 1/8"
 
2- Balanced ¼” TRS
 
2- Unbalanced RCA
Performance
 
Frequency Response
70 Hz - 20 kHz
Crossover Frequency
2.8 kHz
Amplifier Power
25W/speaker
LF Driver
4.5"
HF Driver
1” silk dome
Peak SPL (@ 1 meter)
100 dB
Input Impedance
10 kΩ
User Controls
 
Volume Range
A-type taper
MF Control
Variable (-6 to +6 dB, center 100 Hz)
HF Control
Variable (-6 to +6 dB, center 10 kHz)
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
6.4" (163 mm)
Depth
7" (180 mm)
Height
9.5" (241 mm)
Weight (per pair)
13 lb. (5.9 kg)