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Pair of black rectangular studio monitors with 8-inch woven woofers and silk dome tweeters

Presonus

Presonus Eris Studio 8 8" 140W Studio Monitor Pair

SKU CH-P3E0-HBQ4K

A pair of powered 8-inch studio monitors delivering 140 W biamplified output, 35 Hz – 20 kHz response and a 120° × 60° EBM waveguide for a wide sweet spot

  • Wide sweet spot from 120° x 60° EBM waveguide
  • Crystal-clear highs via 1.25-inch silk-dome tweeter
  • Powerful, accurate bass from 8-inch woven-composite woofer
  • 140 W Class AB bi-amplification reaches 105 dB SPL peak
  • Rear acoustic tuning controls compensate for room placement

Professional 8-inch studio monitor pair

The PreSonus Eris Studio 8 is a powered two-way monitor designed for music production and audio engineering. Each cabinet houses an 8-inch woven-composite woofer and a 1.25-inch silk-dome tweeter fed by 75W and 65W Class AB amplifiers respectively. The custom 120 by 60 degree EBM waveguide creates a wide sweet spot for accurate stereo imaging. A front-firing port and internal bracing reinforce low-frequency clarity.

Home-studio and pro mix-room users

These monitors suit engineers who need full-range monitoring down to 35 Hz without adding a subwoofer and who value a broad listening area. The rear-panel Acoustic Space switch plus High and Mid controls help tame room-related bass buildup and tonal anomalies. Buyers requiring higher peak output than 105 dB SPL or needing digital signal processing built into the speaker should consider other options.

140W Class AB biamplification

Twin Class AB amplifiers deliver a combined 140W, split as 75W to the low-frequency driver and 65W to the high-frequency transducer. This topology provides up to 105 dB SPL peak at one metre while maintaining tonal balance and transient accuracy. The 35 Hz to 20 kHz frequency response covers the critical audio band for mixing and mastering decisions.

Highlights

  • Wide sweet spot from 120° x 60° EBM waveguide
  • Crystal-clear highs via 1.25-inch silk-dome tweeter
  • Powerful, accurate bass from 8-inch woven-composite woofer
  • 140 W Class AB bi-amplification reaches 105 dB SPL peak
  • Rear acoustic tuning controls compensate for room placement

Specifications

No published specifications for this item yet.

Questions about this item

Will the 1.25-inch silk-dome tweeter need replacement after extended use?

The silk-dome tweeter is a passive transducer with no user-serviceable parts; under normal studio levels it does not require scheduled replacement.

What limits output during long mixing sessions — the 75 W woofer amp or the 65 W tweeter amp?

The bi-amplified design splits 140 W total; both amplifiers share thermal protection, so sustained peaks are limited by the combined thermal headroom rather than a single channel.

How much heat does the Class AB bi-amplification produce when the pair runs at 105 dB SPL all day?

Class AB amplifiers generate noticeable warmth at high output; the front-firing port and internal bracing aid airflow, but extended full-level use will raise cabinet temperature.

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