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PreSonus

PreSonus Eris Sub 8BT — 8" Inch Powered Subwoofer, Powered Sub, Active Subwoofer, Wireless, Bluetooth, Home Audio, Bass Speaker, Home Theater, Music Production, Gaming

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Availability: In Stock.
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Arrives Thursday, Dec 25
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Size: 8" Sub BT


Style: Gen 2


Features

  • HONEST. The Eris Sub 8BT compact 8-inch, front-firing studio subwoofer with Bluetooth wireless delivers studio-quality, accurate sound perfect for music production, hi-fi audio listening, or multimedia reference.
  • EXPRESSIVE. Clear, accurate audio with a big low end Eris Sub 8BT's woven-composite woofers weave and nature result in tight bass that you can feel, as well as cleaner overall sound.
  • POWERFUL. The surprisingly loud, 100 watt Eris Sub 8BT drops down to a molar-rattling 30 Hz, so you'll hear the full sonic spectrum and produce better mixes.
  • BLUETOOTH 5.0 WIRELESS CONNECTIVITY. Ultra-reliable Bluetooth 5.0 delivers seamless integration with your other devices while flexible wired connection options ensure easy compatibility with virtually any monitoring setup so you can plug in, pair up, and get to work without missing a beat.
  • ULTRA-WIDE LISTENING SWEET SPOT. Highpass filter and lowpass filter (crossover) controls ensure the Eris Sub 8BT starts working at the precise frequency where your main monitors stop, avoiding the flabby, smudged, low-end mess that occurs without a crossover.
  • ALL THE CONNECTIONS YOU NEED. 14-inch TRS balanced inputs on the back panel for professional audio devices, unbalanced RCA inputs for consumer electronics, plus a convenient front-panel 18-inch TRS stereo aux input for your phone.
  • PRECISION-TUNE TO YOUR ROOM. High- and low-frequency tuning controls allow you to customize your audio output for your ears, room size, and speaker orientation.
  • QUICK-SWITCH TO HEADPHONES. The easy-access front panel headphone output and built-in headphone amplifier allow for plug-and-play headphone media reference when needed.
  • FULL-FREQUENCY SOUND. Although compatible with a variety of full-range studio monitors, the Eris Sub 8BT compact studio subwoofer was designed to complement the voicing and frequency response of the full range of compact Eris studio monitors, from the ultra-affordable Eris 3.5 to the Eris 5.
  • POWER SAVER MODE. Power-saving mode auto engages after 40 minutes of idle time.

Description

Adding a subwoofer to full-range speakers enables you to hear the low- frequency foundation of your music more accurately. The surprisingly loud Eris Sub 8BT delivers clear, accurate sub-lows down to 30 Hz, so you’ll hear the full sonic spectrum for music listening and content creation. For EDM and hip- hop producers, a subwoofer is a must-have. Flexible connectivity options, including stereo Bluetooth 5.0 wireless input, and onboard controls let you effortlessly create a 2.1 monitoring system and tune it to your room. Although compatible with a variety of full-range studio monitors, the PreSonus Eris Sub 8BT compact studio subwoofer was designed to complement Eris and Eris Studio- series monitors.

Brand: PreSonus


Speaker Maximum Output Power: 100 Watts


Frequency Response: 200 Hz


Connectivity Technology: 1/4" TRS Inputs, Pass-through Outputs, RCA Inputs, Stereo Bluetooth 5.0 Input


Audio Output Mode: Stereo


Mounting Type: Floor Standing


Material: Plastic/Metal, Woven Composite


Model Name: Eris Sub 8BT


Speaker Type: Subwoofer


Special Feature: With an 8" paper-composite low-frequency driver, the Eris Sub 8BT subwoofer delivers smooth, accurate low-frequencies down to 30 Hz. Highpass and lowpass filter (crossover) control ensure your Eris Sub 8BT starts working at the precise frequency where your main monitors stop. With flexible connection options, stereo Bluetooth 5.0 input, and adjustable controls for optimal subwoofer performance, the Eris Sub 8BT 8-inch subwoofer is a great choice for both content creation and music listening.


Recommended Uses For Product: Multimedia, Gaming, Studio-Quality Music Production


Compatible Devices: Gaming Console, Laptop, MP3 Player, Projector, Smartphone, Tablet, Television


Unit Count: 1.0 Count


Surround Sound Channel Configuration: 2.1


Included Components: 1 Eris Sub 8BT


Product Dimensions: 9.8"D x 12.7"W x 11.7"H


Item Weight: 8000 Grams


Is Waterproof: FALSE


Warranty Type: Limited


Number of Items: 1


Control Method: Touch


Wireless Communication Technology: Bluetooth


Speaker Size: 8 Inches


Power Source: Corded Electric


Woofer Diameter: 203.2 Millimeters


Audio Driver Type: Dynamic Driver


Bluetooth Range: 10 Meters


Audio Driver Size: 8 Inches


UPC: 673454011740


Style: Gen 2


Manufacturer: PreSonus


Shape: Rectangular Prism


Set Name: Eris Sub 8BT


Item Weight: 17.64 pounds


Item model number: Eris Sub 8BT


Date First Available: September 13, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Dec 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Amazing Speakers, American Company
Size: 3.5" Style: Gen 2
Bought these to replace my failing 10 year old Bose Companions. I was really sad when my Bose went out butt these speakers are amazing for the price. They sound better than the Bose but 3x louder and more base. You can’t beat the price for the performance provided, all the jacks, the build quality, physical tone knobs, and its nice to buy from an American company that is focused on quality instead of stupid LEDs and useless features. ... show more
Reviewed in the United States on November 18, 2025 by Burglos
    • Amazing Subwoofer
Size: 8" Sub BT Style: Gen 2
This subwoofer is remarkable for deep base from an 8” driver, but that is only the beginning. It produces highly accurate sound across the bass spectrum. Instruments sound realistic and tonally correct, with spatial accuracy that far exceeds any bass unit I have owned in the past regardless of cost. And, the sound adjustments make it easy to blend with other speakers. Seriously- a great sub and a great value. That may read like ad copy, but to me it is a joy to endorse a product that has me listening to my CD collection again and hearing a whole new level of detail. ... show more
Reviewed in the United States on October 14, 2025 by T. Bear
    • Great, Inexpensive Monitors, but Can Be Packaged with Wrong Power Cord
Size: 3.5" Style: 1st Generation
Review Image by Phillip Phillip
Keep in mind that I am not a professional; I am just a guy who likes music to sound good and likes making personal audio projects. The monitors look very nice, and they are very straightforward when it comes to hooking up the included cords. Dont be disappointed when hearing them for the first time; they're not made to sound good necessarily. Monitors are supposed to provide a flat response in order for the mixer (you) to get a clear, unbiased reproduction of the sound you are engineering. If you want them to sound better, play around with your equalizer. I have two profiles set up on my Realtek software. One is lively, with a Party preset for the equalizer and the environment set to Room, and the other one is just the default flat sound. You can also play around with the knobs on the back of the main monitor to adjust the highs and lows. The logos on my monitors don't light up when on; I thought they were supposed to. It's not too much of a bummer, but it would've been nice to see. I remember hearing something about breaking in new monitors when you get them. If the sound sounds weird no matter what you do, try playing bass-heavy music constantly for at least 24 hours. I'm pretty sure it is recommended that you do it for a longer time, but it's been a while since I heard how exactly the process works. Now I would like to mention my main issue with my order: the power cord that came with it was not made for the monitor. The monitor takes a figure-8 style plug, but I received one that is round on one side and square on the other. I registered my product on the Presonus website and filed a support ticket last Thursday. After an hour, they apologized for the inconvenience and asked for a shipping address, ostensibly to send me a replacement cord. I provided that information to them, but received no other updates. On Tuesday night, I decided that it was time my Paperweight 3.5s became Presonus 3.5s, and I ordered a power cable myself with one-day shipping. The one I got was the CIMPLE CO polarized double-round figure 8 something or other. It shouldn't be too hard to find on here. It's very cheap if you can hold off on the one-day shipping (which I didn't). For me it was about an extra 12 bucks that I shouldn't have had to spend, but I'm not mad. I'm just glad I can listen to my music without using headphones all the time. I am aware of at least one other reviewer who bought these this month (May 2018) and received the wrong power cord like me, so be prepared for that if you order these monitors, but don't let that put you off. There's nothing wrong with the equipment itself; it's just a packaging issue that may happen. So again, I am not a professional, but I like the way they look on my desk and the way they sound. I definitely recommend them, especially for the price. ... show more
Reviewed in the United States on May 30, 2018 by Phillip Phillip
    • Much better mixes
Size: 8" Sub BT Style: Gen 2
Review Image by Michael Michael
I got this for my home studio and after using it to finish three songs since getting it, I can say I was definitely handicapped trying to produce and mix without a sub. I have the sub paired with my Presonus Eris 5 speakers. The songs I've produced using the sub vs. without the sub have translated much better across various speaker systems and my low end is much tighter and easier to manage. Also, when it comes to sound design, I can make much deeper and higher quality sub bass synth patches because I can actually hear and feel what I'm doing. I'd recommend using a calibrated room microphone and an acoustic room response calibration software to calibrate the sub and your speakers to your specific room as well. I found for my room I could just leave the sub in it's default configuration out of the box, but the settings on the back of the sub allow for some really nice fine tuning to get a nice flat response after accounting for the room response. Lastly, I really like the Bluetooth capability for casual listening and it works well if you only pair it with one device, but I found that if you want to switch between devices you have to press and hold the Bluetooth button on the back of the sub for it to connect to a different device each time despite already being paired. It connects automatically without that step if you just connect and use one BT device consistently with it. Kind of a weird and somewhat annoying quirk, but I don't really use the Bluetooth for anything but connecting my phone to the speaker system for leisure listening, and I only occasionally connect my laptop. For music production though, I use balanced TRS cables routed to my audio interface because the Bluetooth can add a significant amount of latency to the signal chain. In summary, if you already have Eris speakers and want to gain the valuable information your ears need to have great low end in your mixes I'd say this sub is a no brainer and worth every penny. ... show more
Reviewed in the United States on August 22, 2025 by Michael Michael

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