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

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

Bottom line: The PreSonus Eris Sub 8 BT White 8-inch Front-Firing Studio Subwoofer: 100W amp reaches down to 30 Hz for deep low-end extension; main trade-off: single 8-inch front-firing driver may underwhelm in large rooms.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ 100W amp reaches down to 30 Hz for deep low-end extension
  • ✓ Bluetooth 5.0 plus wired TRS, RCA, and front aux inputs
  • ✓ Highpass/lowpass crossover controls blend cleanly with main monitors
  • ✓ Woven-composite 8-inch woofer delivers tight, defined bass

Cons

  • ✗ Single 8-inch front-firing driver may underwhelm in large rooms
  • ✗ Voiced for compact Eris monitors, less tailored to other brands
  • ✗ Builds only a 2.1 setup, not surround sound
  • ✗ Power-saver auto-off after 40 minutes idle can interrupt sessions

Manufacturer 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…

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SpecPicks Verdict

SpecPicks scored PreSonus Eris Sub 8 BT White 8-inch Front-Firing Studio Subwoofer using a rating × review-volume × price-fit model applied to published specs and reviews across the audio & midi category. PreSonus's audio & midi lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for audio & midi of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key 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. ¼-inch TRS balanced inputs on the back panel for professional audio devices, unbalanced RCA inputs for consumer electronics, plus a convenient front-panel ⅛-inch TRS stereo aux input for your phone.

Full Specifications

BrandPreSonus
ColorWhite
Model NameERIS SUB 8 BT WHITE
Unit Count1 Count
ConnectivityBluetooth
Model Number2777500139
Speaker Size8 inches
Speaker TypeSubwoofer
CompatibilitySwitch
Mounting TypeFloor Standing
Warranty TypeManufacturer
Built-In Media1 Eris Sub 8 BT subwoofer
Connection TypeWired
Number of Items1
Woofer Diameter8 inches
Antenna LocationFor Music Players
Audio Driver Size8 inches
Audio Driver TypeDynamic Driver
Audio Output ModeStereo
Compatible DevicesSmartphone

Ready to buy?

PreSonus Eris Sub 8 BT White 8-inch Front-Firing Studio Subwoofer with Bluetooth Wireless Technology is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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