LS28SE vs Reference 40th Anniversary
The Reference 40th Anniversary's thd is 0.006% against the LS28SE's 0.007% and its input impedance 120000Ω against 100Ω. Both share output voltage (2.0V RMS) and output impedance (600Ω).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPre-AmplifiersTube Amplifiers
Estimated price (community-sourced)
$7,500 - $12,000
Around — community and catalog average, updates slowly
About the LS28SE
The Audio Research LS28SE is a premium line-stage preamplifier that offers a blend of flexibility, intuitive control, and superior audio quality. It features four balanced and four single-ended inputs, along with two sets of both balanced and single-ended outputs, ensuring maximum connectivity. The preamplifier is equipped with a user-friendly menu system that allows users to control various parameters such as input naming, tube hours, auto shutdown, and home theater passthrough. It also includes phase invert and mono functions for enhanced listening control. At its core, the LS28SE utilizes four 6H30 vacuum tubes in its analog circuit, providing a refined sound with improved clarity, resolution, transient response, and spatial detail. The incorporation of proprietary gold coupling caps, similar to those found in higher-end Reference models, further elevates the listening experience. The LS28SE is designed to work seamlessly with any amplifier, making it a versatile addition to high-end audio systems.
Specifications
Power Specifications
Amplification power output and characteristics
- Input Impedance
- 100Ω
- Max Input Voltage
- 16.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.007%
- SNR
- 122 dB
- Output Voltage
- 2.0V RMS
- Output Impedance
- 600Ω
- Max Output Voltage
- 17.0V RMS
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- balanced, single-ended
- Analog Outputs
- balanced, single-ended
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 480 × 165 × 348 mm (W × H × D)
- Weight
- 7.2 kg (16 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions