Presonus Eris Sub 8BT

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Presonus Eris Sub 8BT

Presonus

Eris Sub 8BT

4.6 Expert Rating

Product Info

Article Number: 572888
Brand: Presonus
Model: Eris Sub 8BT
Category: Subwoofers
Price: $204.60

* Prices may vary. Check retailer for current pricing and availability.

The Eris Sub 8BT is a surprisingly capable sub for smaller home studios or project rooms. It's a budget-friendly way to add some serious low-end reinforcement to your monitors, and the Bluetooth is a nice convenience. It's perfect for singer-songwriters, bedroom producers, or anyone needing a little extra rumble without taking up a ton of space.

Product Description

  • Presonus Eris Sub 8BT
  • Active Studio Monitors with Bluetooth Connectivity
  • Equipped with" 8 woofer
  • Power: 50 RMS
  • Class-AB-power amp
  • Frequency range: 30 - 200 Hz
  • Stepless unput level adjustment -30 dB to +6 dB
  • Variable low-pass filter (50 Hz to 130 Hz)
  • Switchable high-pass filter at 80 Hz
  • Phase switch
  • Auto standby switchable
  • Inputs: 2x 6.3 mm balanced TRS jack
  • 2x unbalanced cinch
  • Bluetooth 5
  • Outputs: 2x 6.3 mm balanced TRS jack
  • 2x unbalanced RCA
  • Shielded against HF interference
  • switch-on delay and output current limiter
  • overheating protection and subsonic filter
  • Dimensions (H x W x D): 298 x 250 x 323 mm
  • Weight: 7.38 kg
PROS
  • • Solid 8” woofer delivers surprising depth for its size.
  • • Class-AB amp provides clean, efficient power without excessive heat.
  • • Bluetooth 5.0 offers convenient wireless connectivity for streaming.
  • • Compact design allows for flexible placement in smaller studio environments.
CONS
  • • Limited frequency extension above 200Hz necessitates pairing with full-range monitors.
  • • The Class-AB design can run a bit warmer than a Class-D amplifier.
  • • Low-end response, while good, might lack the ultimate impact for serious bassheads.

Product Video

Key Features

Woofer Size 8 inch
Power (Watts) 50
Frequency Range 30 - 200 Hz
Crossover Variable low-pass filter (50 Hz to 130 Hz) & High-pass filter (80 Hz)
Connections 2x Balanced TRS, 2x Unbalanced RCA, Bluetooth 5.0, 2x Balanced TRS Outputs
Weight 7.38 kg

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Frequently Asked Questions

Bluetooth introduces some latency, so it's best for playback and reference, not for live tracking – it’s not a dealbreaker for casual use though.
Yes, the 80Hz high-pass filter is well-suited to prevent low-frequency overlap and muddiness when paired with typical nearfield monitors.
The auto-standby is generally reliable; however, it can occasionally trigger if the input signal is very quiet or intermittent.

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