Presonus Eris 4.5BT 2nd Gen

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Active Studio Monitors with Bluetooth Connectivity

Equipped with: 4.5" woofer and 1" tweeter with silk cone
Power: 2x 25 W sinus
Class-AB-power amp
Frequency range: 70 - 20,000 Hz
Maximum level: 100 dB @ 1 m
Auto standby switchable
Inputs: TRS jacks (L/R, balanced), RCA pair (L/R)
Bluetooth 5.0
Treble control and bass control each -6 to +6 dB
Front aux input for smartphone etc.: 3.5 mm stereo mini jack
Front headphone jack: 3.5 mm stereo mini jack
Front volume control with on/off switch and operation LED
Shielded against HF interference
Power-on delay and output current limiter
Overheating protection and subsonic filter
Dimensions (H x W x D): 241 x 163 x 179 mm
Weight: 4.5 kg (pair)
Incl. mini jack TRS to 2x RCA cable, 3.5 mm TRS to 3.5 mm TRS cable and 1.5 m connection cable from left to right speaker

30-Day Money-Back Guarantee

3-Year Thomann Warranty

Available since October 2023

Item number 572885

Sales Unit 1 pair(s)

Speaker size 1x 4,5"

Amplifier power per unit (RMS) 25 W

Magnetic Shielding No

Analogue XLR Input No

Analogue Input (Jack) Yes

Analogue Input (Mini Jack) Yes

Analogue Input (RCA) Yes

Digital input Yes

Manual frequency correction Yes

Frequency range min. 70 Hz

Frequency range max. 20000 Hz

Dimensions in mm 241 x 163 x 179

Weight in kg 4,5 kg

Speaker Hous8ing - Woofer System Bassreflex

$155

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Compact and affordable stereo set

The Presonus Eris 4.5BT 2nd Gen is an active two-way stereo studio monitor set. Featuring a 4.5" woofer and a 1" tweeter, this model is the intermediate configuration in the manufacturer's compact class. The series combines an attractive price with an accurate and balanced sound reproduction, which for the second-generation monitors has been configured for even greater precision, particularly in the bass range. In addition, the simple Eris models feature an impressive array of connection options, which in this case includes a Bluetooth interface. This product line is complemented by the more powerful models from the Eris Studio range. As comparable configurations are available in both product series, caution should be exercised when choosing a Presonus device to avoid purchasing the wrong model.

Presonus Eris 4.5BT 2nd Gen Bluetooth studio monitors

Balanced sound

The Presonus Eris 4.5BT 2nd Gen comes in a highly compact and robust bass reflex housing made from vinyl-laminated MDF. The 4.5" woven-composite woofer produces a clear bass, starting at 70Hz, and ensures a uniform dispersion across the entire frequency spectrum, while the 1" silk-dome tweeter ensures natural articulation of highs and a wide sweet spot for an agreeable sound. Each speaker is powered by a 25W class AB amplifier. The two amplifiers are housed in the left-hand speaker, which also features a handy headphone output at the front. The right-hand monitor is connected as a satellite and does not require a dedicated power supply.

Ideal for home studios

The Presonus Eris 4.5BT 2nd Gen is ideal for all users who are looking for reliable monitoring at a low price and, thanks to the speaker's extremely compact housing, is not only perfect for YouTubers and podcasters working at minimalistic workstations, but also for music and video production at home. The 4.5" woofer is ideally suited to near-field use in generally smaller rooms. Furthermore, the Presonus Eris 4.5BT 2nd Gen boasts a simple filter section with two shelving filters for bass and treble (+/- 6dB each), allowing the sound to be adapted to a room's acoustics. For an optimised low end, combining the monitors with a subwoofer such as the Eris Sub 8BT may help produce the desired result.

About Presonus

Presonus is a US company founded in 1995 by Jim Odom and Brian Smith in Baton Rouge, Louisiana. The firm designs hardware and software at both professional and more affordable levels for musicians and producers. Presonus first made a splash in the mid-1990s with the DCP8, an eight-channel analogue compressor/limiter/gate with fader and mute automation that could be digitally controlled by MIDI. In the early 2000s followed a series of microphone amplifiers and the first audio interfaces for the then-emerging home studio scene. Today, the company's product range includes audio interfaces, microphone preamps, digital mixing consoles, and studio monitors as well as the established DAW software Studio One.

Extensive connectivity

The Presonus Eris 4.5BT 2nd Gen offers extensive connectivity, making it easy to integrate in an everyday living and working space. The left-hand speaker is equipped with balanced 6.3mm TRS jack sockets for audio interface connection and an unbalanced RCA socket for HiFi systems. The 3.5mm stereo jack input at the front of the speaker enables the rapid connection of wired playback devices such as smartphones or tablets, although easy wireless connection of mobile devices is, of course, possible courtesy of Bluetooth 5. For added practicality, the volume control and headphone jack can also be found on the speaker – a feature that definitely sets the inexpensive Eris 4.5BT 2nd Gen apart from its larger counterpart, the Eris Studio 4.

7 Customer ratings

5 4 Customers 4 3 Customers 3 0 Customers 2 0 Customers 1 0 Customers

4.6 / 5

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5 Reviews

"Where ma mids?"

ZZloop 25.12.2023

Somehow the site lost my full review..

The speakers are generally ok. I bought them to be used as computer speakers. Before this I had some mid priced Logitech speakers from 2007.
After plugging in the Eris for the first time I immediately thought " Oh my god, the Logitech speakers are sooo good!" .. not kidding. I always loved the sound from those speakers -they were pretty flat sounding (I actually used them for mixing) except for the mids which were sweetend somehow. They were a joy to listen.

Now, Eris.
The mids are almost missing! I can't hear some things in songs .. some vocals in well known songs are harder to hear, also guitars etc. They sound very dry.
The bass is fantastic. It's really rich and full sounding. Good for any music. It doesn't eat the mids at all (i thought that at first).
The treble shoots out very clear. It's very good and pronounced and separates itself from other frequencies well. I have to lower the treble in my setup.

I use the Eris speakers with my Native Instruments Komplete 2 USB audio interface. They are connected with balanced TRS cables. I also bought a better speaker cable to connect both speakers. I Recommend buying a better cable than supplied.

Included in the box are all cables you need.

Bluetooth works very well. Signal from TRS mixes with signal from Bluetooth so you can hear both at the same time. TRS and RCA signals cancel each other out.

The speakers sound well overall. Everything is great except the mids. I just can't get around how badly it produces mids. It's like the output from 200Hz to 2000Hz is turned down.
Yes I tried lowering Bass and Treble knobs completely. This just makes it loose bass and treble also. The mids stay the same - dry dry and nowhere to be found. Actually Bass brings some needed warmth at 100Hz so I have to keep it up.

Oh and the hiss everyone is talking about.
There is an audible high frequency hiss which is present when the speakers are on. It's not that bad. I'm sensitive to noise but it doesn't bother me at all. And I have the speakers in my living room.

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Simply Astounding

Herbie Crichlow 15.01.2024

From the Build quality to the incredible clarity in sound. Presonus have absolutely nailed it. If you don't have these beauties in your studio..you are truly missing out. Fantastic value for money. Nuff Said !!!

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Très bonne qualité sonore Eris 4.5bt

gilloum94 03.07.2024

Très bon son, basses bien présentes, sons clairs dominants mais cela reste équilibré. Très heureux de mon achat

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Zufrieden mit kleiner Einschränkung

Soundjata 14.10.2024

Ich benutze die Boxen verkabelt für's E-Piano und über Bluetooth zum Musik hören. Im Prinzip bin ich sehr zufrieden, allerdings hat de Master-Lautsprecher ein leises tiefest Blubbern, welches ich bis ca 60cm Entfernung hören kann. Hab sie trotzdem behalten.

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Presonus Eris 4.5BT 2nd Gen

Active Studio Monitors with Bluetooth Connectivity