SP17 vs LS15
The LS15's signal-to-noise is 98 dB against the SP17's 76 dB, its thd 0.010% against 0.005%, and its weight 5.3 kg (12 lbs) against 5.7 kg (13 lbs). Both share output voltage (2.0V RMS).
AI-generated product photo — not official manufacturer imagery.
AmplifiersTube AmplifiersPre-AmplifiersPhono Pre-AmpsDiscontinued
Estimated price (community-sourced)
$2,200
Around — community and catalog average, updates slowly
About the SP17
The Audio Research SP17 is a single-ended hybrid line and phono preamplifier. Its input stage uses low-noise JFETs, while the output stage employs two 6H30 dual-triode tubes. Inputs are provided for phono, CD, tuner, video, and auxiliary sources, along with a unity-gain processor input. The unit features a 103-step volume control, a regulated high-voltage supply, increased phono gain, low output impedance, and a wide frequency response extending from below 0.3Hz to above 120kHz at the -3dB points. The phono stage provides 58dB of gain and is intended for higher-output moving-coil or moving-magnet cartridges in the approximately 0.7–7mV range.
Specifications
Power Specifications
Amplification power output and characteristics
- Amplifier Class
- A
- Max Input Voltage
- 9.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.005%
- SNR
- 76 dB
- Output Voltage
- 2.0V RMS
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 480 × 132 × 254 mm (W × H × D)
- Weight
- 5.7 kg (13 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions