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

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.