What is the Roksan Caspian 4G Power Amplifier?
The Roksan Caspian 4G Power Amplifier is a dedicated stereo power amplifier designed to work with a separate preamplifier, such as the Roksan Caspian 4G Streaming Pre-Amplifier. Its role is to deliver clean, high-current power to loudspeakers with a focus on control, transparency, and low distortion. It uses Roksan’s Euphoria amplification architecture, which is intended to keep the signal path as pure and direct as possible.
How much power does it deliver?
In stereo mode, the amplifier produces approximately 105 watts per channel into 8 ohms and around 200 watts per channel into 4 ohms. When switched into mono-bridged mode using two units, output increases significantly to roughly 420 watts into 8 ohms and up to about 630 watts into 4 ohms. This makes it suitable for demanding loudspeakers and larger listening rooms where greater headroom and control are required.
What amplification class does it use?
It is a Class AB amplifier. This design aims to combine the smoothness and low-level detail associated with Class A operation while maintaining better efficiency and thermal control. In practice, it allows the amplifier to deliver both finesse at low listening levels and strong dynamic performance when the music demands it.
Can it be used in mono configuration?
Yes, the Caspian 4G Power Amplifier can be configured as a mono block when using two units. In this setup, each amplifier drives a single channel, which increases power delivery and improves channel separation. This configuration is often used in higher-end systems where maximum performance and speaker control are the priority.
What type of speakers does it pair well with?
It is well suited to a wide range of speakers, particularly medium to large floorstanding models and designs that benefit from strong current delivery. It also works well with lower-efficiency or more complex speaker loads that require firm control from the amplifier. Its character is generally neutral and controlled, making it a good match for speakers where accuracy and resolution are important.
Does it require a matching preamplifier?
Yes, it is designed to be used with a separate preamplifier. The ideal partner is the Caspian 4G streaming preamp, although high-quality third-party preamplifiers with balanced XLR outputs will also work well. The preamp handles source selection and volume control, while the power amplifier focuses purely on driving the speakers.
What inputs does it support?
The amplifier provides both balanced XLR inputs and unbalanced RCA inputs. The XLR connection is typically preferred in higher-end systems because it offers better noise rejection and improved signal integrity over longer cable runs. There is no built-in digital or streaming functionality, as it is strictly an analogue power amplifier.
Does it run hot during operation?
As a Class AB amplifier, it does generate some heat, especially when delivering higher output levels. The chassis is designed with substantial heat sinking to manage thermal performance effectively. It should be installed in a well-ventilated space to ensure long-term stability and optimal performance.
Can it be used in a home theatre setup?
Yes, it can be integrated into a home theatre system using the pre-outs from an AV processor. In this role, it can power front left and right speakers, or be part of a larger multi-amplifier setup depending on system design. Its focus on control and clarity can significantly improve dialogue and front-stage performance in a cinema system.
How is it controlled?
The amplifier itself does not include digital control features or an app. It is controlled entirely through the connected preamplifier, which manages volume and input selection. When used within a full Caspian 4G system, additional system-level integration features may be available through the ecosystem’s control platform.
What is its overall sound character?
Its sonic signature is generally neutral, controlled, and highly detailed. It tends to provide tight bass response, clear midrange presentation, and well-defined imaging without adding significant coloration. The emphasis is on accuracy and transparency rather than warmth or enhancement.
