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PreSonus

PreSonus Eris Sub 8 BT White 8-inch Front-Firing Studio Subwoofer with Bluetooth Wireless Technology

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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 28
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Size: 8" Subwoofer Bluetooth


Color: White


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

The subwoofer you can get to put a little boom in your room, the surprisingly loud, 100 watt Eris Sub 8BT reaches down to a molar-rattling 30 Hz, so you'll hear the full sonic spectrum and produce better mixes. The first PreSonus studio subwoofer to offer Bluetooth 5.0 wireless connectivity, the Eris Sub 8BT provides flexible wired connection options, as well, making it easy to add a subwoofer to just about any monitoring setup. Onboard controls let you effortlessly create a 2.1 monitoring system and tune it to your room. Highpass filter and lowpass filter (crossover) controls ensure the Eris Sub 8BT starts working at the precise frequency where your main monitors stop, seamlessly extending the low-end of your monitoring setup. 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 all compact Eris studio monitors, from the affordable Eris 3.5 to the Eris Studio 5

Brand: PreSonus


Speaker Maximum Output Power: 100 Watts


Frequency Response: 30 Hz


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


Audio Output Mode: Stereo


Audio Output Mode: Stereo


Mounting Type: Floor Standing


Speaker Type: Subwoofer


Additional Features: The Eris Sub 8BT active subwoofer features an 8-inch, front-firing, glass-composite woofer; 100W power; built-in tuning controls to complement your full-range monitors; Bluetooth wireless input; and stereo ¼-inch TRS and RCA inputs and outputs. A variable lowpass filter enables a seamless crossover transition, and a switchable 80 Hz highpass filter is provided for optimizing performance with satellite speakers.


Color: White


Warranty Type: Manufacturer


Speaker Size: 8 Inches


Speaker Maximum Output Power: 100 Watts


Frequency Response: 30 Hz


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


Item Weight: 15.3 Pounds


Brand: PreSonus


Model Number: 2777500139


Model Name: ERIS SUB 8 BT WHITE


Built-In Media: 1 Eris Sub 8 BT subwoofer


Warranty Description: 2 Year Manufacturer


Number of Items: 1


UPC: 673454014574


Manufacturer: PreSonus


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


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 28

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

    • Powerful, Clean Bass with Bluetooth - Huge Upgrade to my Setup
Size: 8" Subwoofer Bluetooth Color: Black
This subwoofer seriously impressed me. It's a beast for its size. The power is the first thing you notice, it hits hard and clean without getting muddy. For an 8-inch sub, it delivers deep, punchy bass and can easily fill a room. It’s rated around 100W and can reach down to roughly 30 Hz, and you can absolutely feel that low-end presence. The controls are where this thing really stands out. You get adjustable input gain, a variable low-pass filter, and flexible tuning options so you can dial it in perfectly with your speakers. It’s not just plug-and-play (although it certainly can be), you can actually fine-tune your sound, which makes a big difference for both music production and casual listening. In terms of versatility, it works great across the board: studio monitoring, gaming, movies, or just listening to music. The Bluetooth feature is a nice bonus too, making it easy to connect without extra cables when you want a simpler setup. As for value, it sits in a really strong spot. It’s not the cheapest sub out there, but for the performance, features, and overall sound quality, it absolutely justifies the price. You’re getting something that feels much closer to higher-end gear than budget equipment. Overall, this sub adds a whole new dimension to your setup. If you want tight, controlled bass with real customization options, this is an easy recommendation. ... show more
Reviewed in the United States on April 6, 2026 by Seth
    • As advertised. This sub fixed my recording playback issues. As advertised. This sub fixed my recording playback issues.
Size: 8" Subwoofer Bluetooth Color: Black
Review Image by cleburne1
I have a small home recording studio as a hobby. The room is about 12 X 10. Before, all I had were two KRK 8's for recording playback. These are good studio monitors, but I could not get an accurate playback of lower bass - forcing me to use headphones, which is a no-no. Now the bass is coming out clear. I'm getting a clean playback and the pass through to the KRK's is great. Add in the bluetooth as a bonus for listening to tunes between recording sessions. I highly recommend as a small studio sub monitor. ... show more
Reviewed in the United States on April 26, 2026 Reviewed in the United States on April 26, 2026 by cleburne1
    • Great Sub
Size: 8" Subwoofer Bluetooth Color: Black
This is a massive improvement/addition to my Edifier MR4 clean punchy bass easy setup worth every penny
Reviewed in the United States on May 16, 2026 by Amazon Customer
    • Deep and Dark SubSoundz [Techno/Ambient]
Size: 8" Subwoofer Bluetooth Color: White
The Eris Sub 8 absolutely KICKS. I’m running a full hardware rig—everything from the Erica Synths Perkons Hd-01 and Moog DFAM/Soma Lyra 8 and Sonicware Liven Ambient O—all through a Zoom L-12. This sub handles the raw power of analog synthesis and Eurorack levels like a champ. For modular gear, the output is on ANOTHER LEVEL. It delivers that deep, dark, and heavy low-end you need for hardware jams, but here’s the best part: it stays crystal clear. It’s punchy, not muddy. If you need a sub that can handle the aggressive transients of a RAT distortion pedal or the sub-harmonics of an Oxi One sequence, look no further. You can dial it in exactly to your ears. 10/10 for any hardware-based studio. ... show more
Reviewed in the United States on March 20, 2026 by Rezwan Khan
    • Perfect compliment for your MR3 speakers.
Size: 8" Subwoofer Bluetooth Color: White
This is the perfect sub for your MR3 monitor speakers. It is full of features, great sound and easily customizable. You have the option to connect your monitors into it or as a stand alone sub. I highly recommend it.
Reviewed in the United States on May 13, 2026 by Johnny
    • Good size and good enough sound, but kind of a pain
Size: 8" Subwoofer Bluetooth Color: Black
Don't have a lot of experience with subwoofers, but this seems to do the job, and my audio engineer friend thought it was okay. Is a pain to have to reconnect all the time when turning it off and on because I have to hold the button on the back which isn't easy to reach. Also gets pretty hot, so I don't leave it on for really long periods like I do other regular studio monitors. ... show more
Reviewed in the United States on March 26, 2026 by deppppp
    • Impressive for such low wattage
Size: 8" Subwoofer Bluetooth Color: White
I've got the Eris BT5's to go with this subwoofer. My buddy heard these in someone's home down where he lives and said that they sound amazing for a "budget" Monitor set. He wasn't wrong. I can't even open the set up because at about 50% volume in a 12x12 room, it's boomy and loud. You do have to EQ these though. The highs and lows won't be as rich without an EQ. Because both the Subwoofer and Sat's are BT, you do have to hook both up to a PC to get sound out of each and together. Now you know if you didn't and was like what. You'll also want to go ahead and get some RCA cables or the TRS cables, because they don't come with either for Sub to Sat connections. The Sat's come with RCA to 3.5mm and a 3.5 to 3.5 cable for phone/tablet/headset pass thru/whatever. I went with White because I'm building out a contrast setup with White n Black aesthetics. They look nice too. Good value for the cost. The next set up from these in another brand run about 250 a satellite and 300 to 500 for the matching subwoofer. The Eris 5BTs do pair up nice with the 8BT. ... show more
Reviewed in the United States on March 6, 2026 by TickleSlip
    • Much better mixes Much better mixes
Size: 8" Subwoofer Bluetooth Color: Black
Review Image by 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 Reviewed in the United States on August 22, 2025 by Michael

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