Roksan Caspian 4G Power Amplifier

Reference Dual-Mono Power Amplifier | Brisbane HiFi Audio Specialist The Roksan Caspian 4G Power Amplifier is a dedicated stereo power amplifier built around Roksan's fourth-generation Caspian platform. Designed and manufactured in the UK, it combines high-current Class AB amplification with a dual-mono power architecture to provide substantial drive capability, stereo separation, and control for demanding loudspeaker systems. Rated at 105 W per channel into 8 Ω and 200 W per channel into 4 Ω, the Caspian 4G Power Amplifier is designed to deliver consistent current into a range of loudspeaker loads. Its power supply architecture, balanced and single-ended inputs, pass-through connectivity, and 12V trigger control make it suitable for both dedicated two-channel systems and integrated pre/power configurations. The amplifier can be paired with the Caspian 4G Streaming Amplifier, a dedicated preamplifier, or a compatible third-party line stage. At Brisbane HiFi, we recommend the Caspian 4G Power Amplifier for listeners seeking substantial British Class AB amplification in a relatively compact chassis. Key Features & Audio Engineering Highlights High-Current Class AB Amplification: Delivers 105 W RMS per channel into 8 Ω and 200 W RMS per channel into 4 Ω, providing substantial power for a wide range of loudspeaker systems. Dual-Mono Power Architecture: Independent channel power-supply arrangements are designed to maintain channel separation and provide consistent power delivery to each amplifier channel. Toroidal Power Supply: A dedicated audio-grade toroidal transformer provides the amplifier with substantial current reserves while helping minimise unwanted magnetic interference. Balanced XLR & RCA Inputs: Provides both stereo balanced XLR and single-ended RCA inputs for integration with a wide range of preamplifiers and source systems. RCA Pass-Through Output: The stereo RCA loop output provides additional system flexibility for bi-amplification or other compatible signal-routing configurations. Extruded Aluminium Chassis: Precision metalwork and integrated heat-sinking provide structural rigidity while assisting thermal management during operation. 12V Trigger Control: Trigger input and output connections allow the amplifier to be synchronised with compatible preamplifiers, streaming amplifiers, and system-control equipment. Heavy-Duty Speaker Terminals: Gold-plated 5-way binding posts support banana plugs, spade connectors, and compatible bare speaker cable. Product Specifications Specification Technical Detail Amplifier Type Dual-Mono Class AB Power Amplifier Power Output (8 Ω) 105 W RMS per channel, both channels driven Power Output (4 Ω) 200 W RMS per channel, both channels driven Frequency Response 5 Hz – 80 kHz (-3 dB) THD+N < 0.002% (1 kHz, 8 Ω, 10 W) Signal-to-Noise Ratio > 110 dB (A-weighted, referenced to full output) Input Impedance 47 kΩ RCA / 47 kΩ XLR Analog Inputs 1 × Stereo Balanced XLR / 1 × Stereo RCA Analog Pass-Through 1 × Stereo RCA Loop Output System Control 12V Trigger Input & Output, 3.5 mm Loudspeaker Outputs High-Current Gold-Plated 5-Way Binding Posts Maximum Power Consumption 750 W Standby Consumption < 0.5 W Dimensions (W × D × H) 432 × 388 × 115 mm / 17.0 × 15.3 × 4.5" Weight 14.5 kg / 32.0 lbs Available Finishes Black / Silver Designed for Dedicated Two-Channel Systems The Caspian 4G Power Amplifier can serve as the dedicated power stage in a conventional preamplifier and power-amplifier system. Potential configurations include: Digital Source → Preamplifier → Caspian 4G Power Amplifier → Loudspeakers or Streamer / Source → Preamplifier → Caspian 4G Power Amplifier → Loudspeakers + Subwoofer System Its balanced XLR and RCA inputs provide flexibility when integrating different generations of source and control electronics. Loudspeaker Matching The amplifier's 105 W/8 Ω and 200 W/4 Ω output ratings make loudspeaker sensitivity and impedance important considerations when configuring a system. Brisbane HiFi can assist with evaluating: Loudspeaker sensitivity Nominal impedance Minimum impedance Listening distance Room dimensions Desired playback levels Amplifier headroom Cable and connection requirements System Integration The Caspian 4G includes both 12V trigger control and an RCA pass-through output, providing useful options for integrated two-channel and multi-amplifier systems. Potential applications include: Dedicated stereo systems Bi-amplification configurations Streaming-based systems Preamplifier/power-amplifier separates Custom-install environments Systems incorporating compatible subwoofer electronics System configuration should follow the connection and operating requirements of the associated equipment. Thermal Management & Installation The Caspian 4G uses a substantial metal chassis and integrated heat-sinking to manage operating temperature. Adequate ventilation should be maintained around the amplifier, particularly when installed within enclosed cabinetry or equipment racks. Brisbane HiFi can assist with: Equipment-rack placement Ventilation clearance Component stacking Cable routing Trigger-system integration Power connection planning Why Choose Brisbane HiFi for Roksan Amplification? Brisbane HiFi Showroom Auditions: Visit the Brisbane HiFi showroom to hear the Caspian 4G Power Amplifier with compatible loudspeakers, preamplifiers, streaming equipment, and analogue sources. System Matching Expertise: Our specialists can help assess loudspeaker sensitivity, impedance characteristics, listening-room requirements, and pre/power amplifier compatibility. Australian Support: Brisbane HiFi supplies genuine Roksan audio electronics throughout Queensland and Australia with manufacturer warranty support and nationwide delivery. What's Included in the Box? 1 × Roksan Caspian 4G Power Amplifier 1 × Regional IEC power cable 1 × 12V trigger cable User manual Quick-start guide Consult with the Brisbane HiFi Audio Specialists The Roksan Caspian 4G Power Amplifier combines 105 W per channel into 8 Ω, 200 W into 4 Ω, dual-mono power architecture, balanced XLR and RCA connectivity, RCA pass-through, 12V trigger control, and a compact 432 × 388 × 115 mm chassis in a dedicated British Class AB power amplifier. Contact Brisbane HiFi to discuss loudspeaker matching, preamplifier selection, bi-amplification, rack installation, or to arrange a private listening demonstration.