PreSonus Sceptre S8 8" 2-Way Active Studio Monitor 200W

PreSonus Sceptre CoActual™ series studio reference monitors feature an advanced coaxial design that works integrally with a 32-bit, 96 kHz, dual-core processor that uses Fulcrum Acoustic's TQ™ Temporal Equalization technology. Spectre CoActual monitors deliver clarity and coherence that has previously only been available in ultra-high-end systems. Yet they are an affordable investment for project-studio owners—a first for DSP-controlled, TQ-based systems.

The Sceptre S8 CoActual Studio Monitor features combines an 8-inch low/mid-frequency driver and a 1.73-inch (44 mm), horn-loaded, high-frequency transducer into a single coaxial unit with aligned voice coils. Both the S6 and the S8 have acoustic ports.

"Speaker designers have long been aware that coaxial designs offer the advantages of a single point source for a consistent acoustic center and a symmetrical dispersion pattern," notes PreSonus Executive VP of Product Development John Bastianelli, "but until time-based DSP became affordable, designing coaxial systems without a variety of acoustic anomalies has been extremely expensive."

Through intensive collaboration with Fulcrum Acoustics' Dave Gunness, PreSonus software designers were able to incorporate Fulcrum's Temporal EQ algorithms employing multiple, fully addressable Finite Impulse Response (FIR) filters. Gunness was also responsible for final tuning and voicing of both Spectre-series monitors.

According to Bastianelli, "This high-tech approach requires massive amounts of DSP and subtle, sophisticated transducer design, which is why such systems have, in the past, been limited to very high-end systems with external processors. Clearly, PreSonus Sceptre CoActual studio monitors represent a huge price-performance breakthrough."

Sceptre monitors include controls that enable full integration into any studio environment. A four-position Acoustic Space switch controls a second-order shelving filter center at 100 Hz, with four attenuation settings (no attenuation, -1.5 dB, -3 dB, and -6 dB) so that you can account for the bass response relative to room dimensions and speaker placement. A High Pass switch sets the second-order slope, 12 dB/octave filter’s low-frequency cutoff to linear, 60 Hz, 80 Hz, or 100 Hz. A High-Frequency Driver Adjust switch adjusts the tweeter's overall level to linear (0 dB), +1 dB, -1.5 dB, or -4 dB. The Sensitivity control ranges from +4 dBu to -10 dBV.

The systems are biamplified: Each transducer is powered by a 90W RMS, Class D power amp with an internal heat sink. All Sceptre-series monitors have a balanced XLR and 1/4" TRS line-level inputs with A-taper level control.

All Sceptre-series monitors offer RF shielding, current-output limiting, and over-temperature protection and have internal power supplies with IEC connectors and power switches with on/off LEDs. An amplifier "soft start" feature eliminates popping on power-up.

PreSonus Sceptre S8 Features:

• CoActual technology:
  • Combines DSP time-correction and point-source design for symmetrical soundstage and micro-definition imaging
  • Unique coaxial transducer integrates 8-inch (Sceptre S8) or 6.5-inch (Sceptre S6) midrange driver and 1-inch (25 mm), horn-loaded HF transducer with Coaxial Speaker Coherence Alignment
  • Powerful DSP provides critical Temporal Equalization™ with multiple FIR filters
• Acoustic-tuning controls:
  • HF Driver Adjust (0 dB, +1 dB, -1.5 dB, -4 dB)
  • Acoustic Space settings (0 dB, -1.5 dB, -3 dB, -6 dB)
  • High-pass filter (Off, 60 Hz, 80 Hz, and 100 Hz, -24 dB/octave slope)
  • Sensitivity (+4 dBu to -10 dBV)
• Power and safety:
  • 180W RMS, Class D biamplification with internal heat sink
  • 102 dB maximum continuous SPL
  • RF shielding, current-output limiting, and over-temperature protection
  • Amplifier “soft start” feature eliminates popping on power-up
  • Internal power supply with IEC connector
  • Power switch with on/off LED
• Inputs and outputs: Balanced XLR and 1/4" TRS line-level inputs with A-taper level control

PreSonus Sceptre S8 Specifications:

• Inputs: 1x balanced XLR, 1x balanced 1/4" TRS
• Performance:
  • Frequency Response (-3 dB): 46 Hz - 20 kHz
  • Frequency Response (-10 dB): 38 Hz - 23 kHz
  • Crossover Frequency: 2.4 kHz
  • LF Amplifier Power (@ 4 Ohms): 90W
  • HF Amplifier Power (@ 4 Ohms): 90W
  • Peak SPL (@ 1 meter): 116 dB
  • LF Driver: 8" glass-reinforced paper
  • HF Driver: 1" diaphragm compression driver
  • Input Impedance 10 kOhm
• User Controls:
  • Volume Range: A-type taper
  • HF Control: Flat, +1, -1.5, -4 dB
  • Low Cut: Flat, 60, 80 Hz, 100 Hz
  • Acoustic Space: Flat, -1.5, -3, -6 dB
• Protection:
  • RF interference
  • Over-current
  • Over-voltage
  • 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, medium-density fiberboard
• Dimensions: 11.4" W x 13.3" D x 15.75" H (290 x 338 x 400 mm)
• Weight: 24.25 lbs (11 kg)