L4000 vs L10000
The L10000's signal-to-noise is 100 dB against the L4000's 90 dB, its thd 0.030% against 0.060%, its output voltage 20.0V RMS against 15.0V RMS, and its output impedance 200Ω against 150Ω.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPre-AmplifiersTube AmplifiersDiscontinued
Estimated price (community-sourced)
$6,500
Around — community and catalog average, updates slowly
About the L4000
The L-4000 is a tube line-stage preamplifier with a single gain stage and transformer-coupled outputs. It provides five line-level inputs—two balanced and three unbalanced—and both balanced and unbalanced outputs. Its output transformer is specified for a constant 150-ohm output impedance. The gain stage uses two E810F tubes (D3a is also specified as an option), with two 7233 and two 6485 tubes in the voltage-regulator section.
Specifications
Power Specifications
Amplification power output and characteristics
- Amplifier Class
- tube
- Input Impedance
- 20Ω
- Max Input Voltage
- 15.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.060%
- SNR
- 90 dB
- Output Voltage
- 15.0V RMS
- Output Impedance
- 150Ω
Connectivity
Input and output connections
- Digital Inputs
- XLR, RCA
- Analog Inputs
- XLR, RCA
- Analog Outputs
- XLR, RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 430 × 173 × 350 mm (W × H × D)
- Weight
- 16 kg (35 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions