PreSonus Eris 4.5BT Gen 2
Delivery & payment
- Pickup at the school
- Free · 9:00–21:00
- Ho Chi Minh City
- Fee confirmed with your order
- Across Vietnam
- Courier · fee confirmed by phone
- Payment
- VietQR · cash on delivery · pay at the school
Warranty Genuine product, official warranty, 7-day exchange for factory faults.
- Type
- 2-way active studio monitors with Bluetooth, pair
- Woofer
- 4.5″ woven glass-fibre composite
- Tweeter
- 1″ ultra-low-mass silk dome
- Amplifier
- Class AB, 25 W per side (50 W total)
- Frequency response
- 70 Hz – 20 kHz
- Crossover
- 2.8 kHz
- Max SPL
- 100 dB SPL (peak, at 1 m)
- Bluetooth
- Version 5.0, stereo
- Inputs
- Bluetooth, 2 × balanced 6.35 mm TRS, 2 × RCA, 1 × 3.5 mm stereo mini jack; 10 kΩ impedance
- Outputs
- 3.5 mm headphone jack on the front
- Acoustic tuning
- High ±6 dB (10 kHz), Low ±6 dB (100 Hz), continuously variable
- Protection
- RF interference, output-current limiting, over-temperature, turn-on/off transient, subsonic filter
- Power supply
- 100–240 VAC, 50–60 Hz, IEC cable; power saver after 40 minutes
- Cabinet
- Vinyl-laminated MDF
- Dimensions (W × H × D)
- 163 × 240 × 178 mm (each)
- Included accessories
- Speaker wire, 3.5 mm (1/8″) TRS to stereo RCA cable, 3.5 mm to 3.5 mm stereo cable
Description
The PreSonus Eris 4.5BT 2nd Gen is a pair of 4.5-inch active monitors that add Bluetooth 5.0 to the wired inputs of the Eris range. PreSonus pitches them at bedroom studios, video production and gaming setups, so one pair on the desk can handle mixing as well as music streamed from a phone.
Highlights
- 4.5″ woven glass-fibre composite woofers with 1″ ultra-low-mass silk-dome tweeters, crossing over at 2.8 kHz.
- Class AB amplifiers, 25 W per side and 50 W in total.
- 70 Hz – 20 kHz frequency response and 100 dB peak SPL at 1 m.
- Stereo Bluetooth 5.0 input alongside the wired connections.
- High and Low Acoustic Tuning controls, ±6 dB at 10 kHz and 100 Hz, to match the speakers to the room.
In your setup
Connect an audio interface or mixer to the balanced 6.35 mm TRS inputs, a DJ controller or other consumer gear to the RCA inputs, and a laptop to the 3.5 mm aux input; Bluetooth covers a phone or tablet. The front volume knob also drives the built-in headphone amplifier and its 3.5 mm output. Power saver mode switches on after 40 minutes without use, and the protection circuits handle RF interference, output-current limiting, over-temperature, turn-on/off transients and subsonic signals.
In the box
- Speaker wire
- 3.5 mm TRS to stereo RCA cable
- 3.5 mm to 3.5 mm stereo cable



