SP-16L vs SP-17L
The SP-17L's output impedance is 210Ω against the SP-16L's 260Ω, its input impedance 210Ω against 50000Ω, and its class A against Tube. Both share weight (5.7 kg (13 lbs)).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPre-AmplifiersTube AmplifiersDiscontinued
About the SP-16L
The Audio Research SP-16L is a vacuum tube line-stage preamplifier from Audio Research's SP16 series, omitting the phono section of the full SP16 to focus exclusively on line-level inputs. It uses 12AX7 vacuum tubes in a pure Class A all-tube gain stage, providing multiple line inputs (CD, tuner, video, aux, processor bypass), dual main outputs, and a tape output. The SP-16L includes remote control for volume, input selection, mute, and stereo/mono functions, along with a 12V trigger for power control of amplifiers. Produced from approximately 2002 to 2006, it is now discontinued. Known for its quiet, detailed, and musical character with a fine tube sound, it remains a respected vintage ARC preamp.
Specifications
Power Specifications
Amplification power output and characteristics
- Amplifier Class
- tube
- Input Impedance
- 50000Ω
Analog Output
Analog signal output specifications
- Output Impedance
- 260Ω
Connectivity
Input and output connections
- Analog Inputs
- RCA
- Analog Outputs
- RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 450 × 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