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PreSonus ERIS SUB 8 BT 8-inch Front-Firing Studio Subwoofer Bluetooth 5.0 / 100W / 30 Hz-200 Hz

SKU: ERIS SUB 8 BT
Brand: PreSonus
$209.99
Brand PreSonus
SKU ERIS SUB 8 BT
Weight 17.00 lbs
Warranty 3 Years
Condition New
Status Available
Expert

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Description

The Eris Sub 8BT is a compact 8-inch front-firing studio subwoofer designed to extend the low-frequency range of compact studio monitors and reveal the bass foundation of your mixes. It pairs easily with small desktop monitors to create a controlled 2.1 monitoring system. The unit emphasizes accurate bass reproduction down to 30 Hz to help you make informed mixing decisions.

Key features include an 8-inch woven glass fiber composite low-frequency driver, Bluetooth 5.0 wireless stereo input, and a Class AB amplifier delivering 50W RMS and 100 dB peak output. The subwoofer provides a continuously variable lowpass filter from 50 Hz to 130 Hz and an input gain control from -30 dB to +6 dB. A defeatable highpass filter removes content below 80 Hz from the satellite outputs, allowing seamless integration with full-range monitors.

Performance-spec highlights are a frequency response that extends from 30 Hz to 200 Hz and a peak SPL of 100 dB measured at 1 meter. The onboard crossover controls let you set the lowpass frequency where the sub begins to take over from the main speakers, reducing low-end smearing and preserving mix clarity. Protection circuitry covers RF interference, output-current limiting, over-temperature, turn-on/off transients, and subsonic filtering.

Connectivity is comprehensive for compact studio systems: left/right balanced 1/4-inch TRS and unbalanced RCA inputs plus matched pass-through outputs for connecting satellite speakers. The Eris Sub 8BT also supports Bluetooth 5.0 wireless audio for quick source playback and monitoring checks. An IEC power connection and a Power Saver mode that engages after 40 minutes help manage energy use in the studio.

This subwoofer is suited to electronic music producers, hip-hop and beat makers, and project-studio engineers who need a compact footprint without sacrificing low-frequency insight. It enhances translation on systems ranging from nearfield desktop setups to small control rooms by providing a solid bass reference. The unit’s crossover flexibility makes it suitable for pairing with the Eris line of compact monitors as well as many other small full-range speakers.

Installation and setup are straightforward thanks to clearly labeled controls and simple pass-through wiring for satellites. The cabinet is constructed from vinyl-laminated medium-density fiberboard for acoustic stability and consistent performance. Controls for polarity inversion and ground lift aid in handling room and wiring issues during setup.

Overall, the Eris Sub 8BT provides a compact, controllable low-frequency extension that improves mix decisions and playback realism. Bluetooth 5.0 adds convenience for reference listening while the analog I/O and tuning controls ensure professional integration into studio monitoring systems. The combination of accurate bass response and user-focused controls delivers measurable value for critical listening environments.

Specifications

8-inch composite low-frequency driver8" Woven Glass Fiber Composite
Bluetooth® 5.0 wireless audio stereo inputBluetooth 5.0
50W RMS, Class AB power amplifier50W RMS Class AB
30 Hz to 200 Hz frequency response30 Hz to 200 Hz
100 dB SPL (Peak, @ 1 meter)100 dB SPL Peak @1m
Input gain control (-30 dB to +6 dB, continuously variable)-30 dB to +6 dB
Continuously variable lowpass filter (50 Hz to 130 Hz)50 Hz to 130 Hz
Defeatable highpass filter removes frequency content below 80 Hz from the full-range signal sent from the Eris® Sub 8BT outputs to the main speakersHighpass filter 80 Hz @ -12 dB/octave defeatable
Left and right, balanced ¼-inch TRS and unbalanced RCA main inputs2x 1/4 TRS balanced, 2x RCA unbalanced
Left and right, balanced ¼-inch TRS and unbalanced RCA pass-through outputs for connecting satellite speakers2x 1/4 TRS pass-through, 2x RCA pass-through
Polarity invert switchPolarity invert 0 or 180 degrees
Protection: RF interference, output-current limiting, over-temperature, turn-on/off transient, subsonic filterRF interference, Output-current limiting, Over-temperature, Turn-on/off transient, Subsonic filter
Power Saver mode (engages after 40 minutes)Power Saver after 40 minutes
AccessoriesFootswitch NA
Input Impedance10 kΩ
VoltageRequirements100-240 VAC 50-60 Hz
ColorBlack
SeriesEris
Audio Controls-30 dB to +6 dB, High Pass 80 Hz @ -12 dB/octave, Low Pass 50-130 Hz, Polarity 0 or 180 degrees
Audio SwitchesPolarity 0/180, Ground Lift On/Off, High Pass On/Off, Footswitch On/Off
Cabinet MaterialVinyl-Laminated MDF
LF Transducers8" Woven Glass Fiber Composite
Monitor Inputs2x Balanced 1/4 TRS, 2x Unbalanced RCA
Monitor TypeActive Subwoofer
Power Amplifier TypeClass AB
Product Depth12.7" 32.3 cm
Product Height11.77" 299 mm
Product Height/Length11.77" 299 mm
Product Width9.8" 25.0 cm
Low Pass Filter Frequency50-130 Hz
Power CableIEC
ProtectionsRF interference, Output-current limiting, Over-temperature, Turn-on/off transient, Subsonic filter
Peak SPL100 dB @1m

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  • Money orders: and personal checks or company checks (may take up to 10 days to clear).
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  • Phone Orders: To place a phone order please call 1.888.902.3309 or 1.916.246.6264 and one of our Customer Service Representatives will take your order (8:00am - 6.00pm PST).
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We Offer A 30-Day Money Back Guarantee:

Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

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Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

Exchanges:

If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

  • TVs and monitors 20" and larger
  • Special Order merchandise
  • Any item indicated on the website as non-returnable

For more information see our official Return Policy

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