PreSonus Temblor T8
8" 200W Active Studio Subwoofer with Rear-Firing Bass Reflex Port


The PreSonus Temblor T8 is an 8" 200W active studio subwoofer with rear-firing bass reflex port that is ideally suited for use with Eris, Sceptre, and Ceres BT series studio monitors. This subwoofer will complement full-range monitors without overshadowing them, extending the reach of your full-range system's low end with a musical and natural approach.

The Bottom Line is Great Sound
Powerful and musical, Temblor features high-quality components and design that enable it to deliver fast and accurate transient response, extending low frequencies without a hint of “tubbiness” or overshoot.

Suitable for personal studios, gaming, audiophiles, and home theaters, the Temblor T8 uses a downward-firing, 8-inch glass-composite driver with high-density rubber surround and a round, rear-firing bass-reflex acoustic port. Its 200W Class AB amplifier (100W RMS) delivers up to 104 dB SPL, with a frequency response of 30 Hz to 300 Hz.

Customize Your System Until It's Just Right
The Temblor’s extensive user controls include input gain (-30 dB to +6 dB, continuously variable) and a continuously variable low-pass filter (50 Hz to 130 Hz) that let you create a seamless crossover transition between your full-range studio monitors and subwoofer for a more accurate listening environment.

A switchable high-pass filter removes frequency content below 80 Hz from the full-range signal sent from the Temblor’s outputs to the main monitors, avoiding destructive cancellation and reinforcement in the subwoofer’s upper range.

The result is a subwoofer that can be adjusted to perfectly complement not only PreSonus' Sceptre CoActual, Eris, and Ceres BT active studio monitors but virtually any studio monitor.

Versatile I/O Works With Any Setup
The T8 provides two sets of inputs: left and right, balanced 1/4” TRS and unbalanced RCA main inputs. This enables it to pair well with PreSonus’ Ceres BT-series active speakers and home-stereo speakers, as well as personal-studio systems. Plus, the T8 offers left and right balanced 1/4” TRS and unbalanced RCA pass-through outputs for connecting satellite speakers.

PreSonus Temblor T8 Features:

  • Main Components:
    • 8" downward-firing glass-composite low-frequency transducer
    • Round, rear-firing bass-reflex acoustic port
  • Controls and Filters:
    • Input gain control (-30 dB to +6 dB, continuously variable)
    • Continuously variable low-pass filter (50 Hz to 130 Hz)
    • Built-in crossover
    • Switchable highpass filter removes frequency content below 80 Hz from the full-range signal sent from the Temblor outputs to the main monitors
    • Polarity invert switch
  • Power and Safety:
    • 200 Watt, Class AB amplification
    • Internal damping and heat sink
    • Integraged rubber feet for stable placement
  • Inputs and Ouptuts:
    • Left and Right, balanced 1/4" TRS and unbalanced RCA main inputs
    • Left and Right, balanced 1/4" TRS and unbalanced RCA outputs

PreSonus Temblor T8 Specifications:

  • Inputs:
    • 2x Balanced 1/4" TRS
    • 2x Unbalanced RCA
  • Outputs:
    • 2x Balanced 1/4" TRS (full-range with 80 Hz HPF option)
    • 2x Unbalanced RCA (full-range with 80 Hz HPF option)
  • Performance:
    • Frequency Response:  30 Hz - 200 Hz
    • Low-Pass Filter Frequency:  50 Hz - 130 Hz (variable)
    • Signal-to-Noise Ratio:  > 98dB (A-weighted)
    • THD:  0.05%
    • Amplifier Power:  200W peak, 100W RMS
    • Power Consumption:  120W
    • Amplifier Type:  Class AB
    • Peak SPL at 1m:  104dB
    • Woofer:  8" glass-composite, downward-firing
    • Acoustic Port:  Rear-firing bass reflex (round)
  • User Controls:
    • Input Gain Range:  -30dB to +6dB
    • Polarity Switch:  0° or 180°
    • Low-Pass Filter Control:  50 Hz to 130 Hz
    • High-pass Filter Switch:  On/Off
  • Protection:
    • RF Interference
    • Output-current limiting
    • Over-temperature
    • Turn On/Off Transient
    • Subsonic Filter
    • External Mains Fuse
  • Power:  100 - 120V ~50/60 Hz or 220 - 240V ~50/60 Hz
  • Cabinet:  Vinyl-laminated MDF
  • Dimensions (WxDxH):  10.2" x 12.6" x 11" (260mm x 320mm x 280mm)
  • Weight:  21.2 lbs (9.6 kg)
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