The EAR 834L is a distinguished valve-based line preamplifier designed by Tim de Paravicini under Esoteric Audio Research (EAR). Celebrated for its minimalist yet robust design, the 834L features a classic 'de Paravicini circuit' utilizing three double triode valves (two ECC82/12AU7 and one ECC83/12AX7) to deliver a warm, detailed, and engaging sound signature.

This preamplifier offers five line-level RCA inputs and a genuine tape monitoring circuit, totaling six inputs. The Deluxe version enhances this with additional outputs for bi-amping systems and a neon power monitor light. Both versions are equipped with high-quality volume control and gold-plated input/output terminals, ensuring durability and minimal signal degradation.

The EAR 834L is designed to complement EAR's 834P phono preamplifier and power amplifiers, but it also integrates seamlessly with other high-quality source or power amplifiers. Its pure DC power supply, featuring a high-quality toroidal transformer, ensures minimal AC ripple, contributing to the unit's exceptional performance.

Available in Classic (black box) and Deluxe (chrome and gold finish) specifications, the EAR 834L stands as a testament to Tim de Paravicini's commitment to high-fidelity audio, offering audiophiles a preamplifier that combines timeless design with modern performance.

Specifications

• Type: Valve-based line preamplifier

• Valve Complement: 2 × ECC82 (12AU7), 1 × ECC83 (12AX7)

• Inputs:

  • 5 × RCA line-level inputs

  • 1 × Tape monitoring circuit (total of 6 inputs)

• Outputs:

  • 1 × RCA main output

  • 1 × Tape output (Deluxe version adds extra outputs for bi-amping)

• Volume Control: High-quality volume control fitted

• Power Switch: Panel-mounted power switch

• Terminals: Gold-plated input and output terminals

• Power Supply:

  • High-quality toroidal transformer

  • Double DC power supply for both low-tension (heater) and high-tension (anode) voltages

• Expected Valve Life: Minimum of five years of continuous operation

• Output Capability: Sufficient to drive any power amplifier (transistor or valve) and suitable for long interconnect cables