Rotel RB1590 Stereo Power Amplifier

The Rotel RB-1590 is a high-current stereo power amplifier built for systems that demand serious drive capability and long-term reliability. Designed as a dedicated power stage, it focuses entirely on delivering clean, stable output—making it an ideal partner for high-performance preamplifiers and more demanding loudspeakers.

At its core, the RB-1590 delivers 350 watts per channel into 8 ohms with both channels driven, providing the headroom needed for larger listening environments and less efficient speaker designs. Rotel achieves this through a substantial power supply built around dual in-house manufactured toroidal transformers, ensuring consistent current delivery even under demanding loads.

The internal layout follows a true dual-mono topology, effectively treating each channel as its own amplifier. This approach improves channel separation and reduces interference, contributing to a cleaner and more stable signal path. High-capacity slit foil capacitors further support energy storage and delivery, helping maintain performance during dynamic peaks.

Connectivity is straightforward and purpose-built. The RB-1590 includes both balanced XLR and single-ended RCA inputs, along with dual sets of heavy-duty speaker binding posts. Protection circuitry for thermal, overcurrent, and over-voltage conditions ensures long-term durability, while 12V trigger support allows for seamless system integration.

Physically, the RB-1590 reflects its role as a serious power amplifier. The substantial chassis, internal shielding, and high-mass construction are all designed to reduce vibration and maintain electrical stability, making it well-suited for rack or dedicated system installations.

Key Features:

• 350W per channel (8 ohms, both channels driven) Class AB amplification
• Dual in-house toroidal transformers for high-current power delivery
• Dual-mono circuit topology for improved channel separation
• High-capacity slit foil capacitors for energy storage and stability
• Balanced (XLR) and single-ended (RCA) inputs
• Dual speaker binding posts for flexible connections
• Protection circuitry for long-term reliability
• 12V trigger input for system integration
• Heavy-duty chassis with rack-mount capability

The Rotel RB-1590 is built as a dedicated power solution—designed to provide the control, stability, and output required to fully realize the potential of high-performance speaker systems.