PreSonus
PreSonus Eris E3.5 Bluetooth Studio Monitor Pair
★★★★★
Bluetooth 5.0
Compact nearfield monitors that bring balanced-input accuracy and Bluetooth convenience to desktop studios and home tracking rooms.
$149.99*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Key Features
3.5" woven composite woofers deliver solid low-end sound with minimal bass distortion
50-watt Class AB amplification (25 Watts per speaker) provides plenty of volume and headroom for nearfield monitoring
RCA and balanced 1/4" inputs provide all the connections you may need
Aux input for connecting your smartphone or media player
Stereo Bluetooth 5.0 wireless input
Specifications
Woofer
3.5" woven composite
Amplification
50W Class AB (25W per speaker)
Inputs
Balanced 1/4" TRS, RCA stereo, 3.5mm Aux
Wireless
Bluetooth 5.0
Configuration
Active/passive pair
Pros & Cons
👍 Pros
- Balanced 1/4" TRS inputs maintain signal integrity from interface to speaker, audibly reducing noise on longer cable runs compared to RCA-only monitors in this price range.
- Class AB amplification stays clean through typical nearfield session volumes — you hear transient detail without the crossover distortion that plagues cheap Class D designs at low wattage.
- Bluetooth 5.0 lets you stream reference material from a phone or laptop without re-patching your interface — useful for A/B-ing your mix against commercial tracks.
- Woven composite woofers deliver tighter, more controlled low-midrange reproduction than paper-cone alternatives at this size, which translates to more accurate mix decisions in the 200–400Hz mud zone.
- RCA inputs provide a direct path for consumer-level sources — useful in hybrid setups where the monitors serve double duty as desktop speakers alongside a DAW.
👎 Cons
- A 3.5" woofer physically cannot reproduce meaningful energy below approximately 80Hz — low-end mixing decisions require a subwoofer or regular cross-referencing on headphones.
- No acoustic tuning controls (high-frequency trim, low roll-off switch) means you cannot compensate for boundary bass buildup when the monitors are placed near a back wall.
- Bluetooth playback introduces latency that makes real-time monitoring through the wireless path unusable — it's a reference-listening feature only.
- At 25W per speaker, you approach the woofer's excursion limit before you run out of amplifier headroom, which means bass distortion appears at moderate-to-loud levels.
- No front-panel power button — both speakers power on and off together via a single switch on the active unit, which can be inconvenient in shared setups.
Frequently Asked Questions
Can I connect these directly to my audio interface using the balanced inputs?
Yes — the balanced 1/4" TRS inputs accept a standard balanced output from any interface, which keeps your noise floor clean and rejects ground-loop interference that unbalanced connections can introduce. This is the preferred connection method for any mixing or tracking session.
Is the Bluetooth 5.0 connection suitable for mixing or critical listening?
Bluetooth introduces codec-dependent latency and compression artifacts that make it unsuitable for real-time tracking or critical mix decisions. Use it for casual reference listening — playing back a reference track from your phone — not as your primary monitoring path.
How much headroom do 25 watts per speaker actually give you at nearfield distances?
At typical nearfield distances of 3–4 feet, 25 watts of Class AB amplification delivers plenty of clean SPL for monitoring. You'll hit the limits of the 3.5" woofer's low-frequency extension before you clip the amp — the headroom is appropriate for the driver size.
Do the Eris E3.5 BTs have any acoustic tuning controls for room correction?
No — unlike larger Eris models, the E3.5 BT omits the high-frequency and mid-frequency trim controls. What you hear is a fixed voicing. Position them carefully relative to walls and your listening position; you can't compensate with onboard EQ.
What's the best way to integrate these into a DAW-based studio setup?
Run a balanced TRS cable from your interface's monitor output directly into the active (left) speaker's 1/4" input, then use the included speaker cable to link the passive right unit. Set your DAW's output to your interface and control monitor level from the front-panel knob on the active speaker.
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