LS9 vs LS15
The LS15's signal-to-noise is 98 dB against the LS9's 100 dB, its thd 0.010% against 0.005%, and its weight 5.3 kg (12 lbs) against 5 kg (11 lbs). Both share output voltage (2.0V RMS).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPre-AmplifiersDiscontinued
Estimated price (community-sourced)
$2,528
Around — community and catalog average, updates slowly
About the LS9
The Audio Research LS9 is an all-solid-state line level preamplifier introduced in 1996 as a replacement for the LS3/3B series. It features a low-voltage, pure Class A gain circuit with direct-coupled output, meaning no coupling capacitors are used in the signal path. The LS9 provides 12dB of overall gain, factory adjustable to 18dB if necessary, and a substantial output capability of 24V RMS from the balanced main outputs. It includes complete IR remote control of all front panel functions, including a 70-step electronic relay volume attenuator and input selection. The preamplifier offers two pairs of dedicated balanced inputs, three pairs of dedicated single-ended inputs, and a full tape monitor loop (single-ended in and out). It is well-regarded for its transparency, strong balanced section, and good build quality. The unit measures 480 x 89 x 280 mm, weighs 5 kg, and comes with a remote control. The LS9 was manufactured from 1996 to 1998 and is now discontinued.
Specifications
Analog Output
Analog signal output specifications
- THD
- 0.005%
- SNR
- 100 dB
- Output Voltage
- 2.0V RMS
- Max Output Voltage
- 24.0V RMS
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- balanced, single-ended
- Analog Outputs
- single-ended
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 480 × 89 × 280 mm (W × H × D)
- Weight
- 5 kg (11 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions