PreSonus is now shipping the Sceptre-series CoActual studio reference monitors. Featuring a coaxial design that works integrally with a 32-bit, 48 kHz processor using Fulcrum Acoustic’s TQ Temporal Equalization technology, Sceptre CoActual monitors deliver clarity and coherence that has previously only been available in ultra-high-end systems.

The series includes two models. The Sceptre S8 CoActual Studio Monitor combines an 8-inch low/mid-frequency driver and a 1-inch (25 mm), horn-loaded, high-frequency transducer into a single coaxial unit with aligned voice coils and the Sceptre S6 CoActual Studio Monitor’s coaxial speaker integrates a 6.5-inch low/mid-frequency driver and a 1-inch (25 mm), horn-loaded, high-frequency transducer. Both models have acoustic ports.

Sceptre monitors include controls that enable full integration into any studio environment. A four-position Acoustic Space switch controls a second-order shelving filter centered 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 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 ¼-inch TRS line-level inputs with A-taper level control.

PreSonus Sceptre CoActual-series list for $749.95 each for the S8 and $649.95 each for the S6. More information is here.