SP-17L vs SP-16L
The SP-16L's output impedance is 260Ω against the SP-17L's 210Ω, its input impedance 50000Ω against 210Ω, and its class Tube against A. Both share weight (5.7 kg (13 lbs)).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPre-AmplifiersTube AmplifiersDiscontinued
Estimated price (community-sourced)
$1,700
Around — community and catalog average, updates slowly
About the SP-17L
The Audio Research SP-17L is a single-ended, line-level vacuum-tube preamplifier that omits the SP-17’s phono stage. It uses two 6H30 tubes, a regulated high-voltage supply, a 103-step volume control, and RCA line-level connections including CD, tuner, video, aux, and processor inputs. The line section provides 11.1 dB of gain, 210-ohm single-ended output impedance, and a frequency response of 0.6 Hz to 80 kHz within ±1 dB, with wider -3 dB limits below 0.3 Hz and above 120 kHz. It is housed in a 19-inch-wide chassis measuring approximately 19 x 5.2 x 10 inches and weighing about 5.7 kg.
Specifications
Power Specifications
Amplification power output and characteristics
- Amplifier Class
- A
- Input Impedance
- 210Ω
Analog Output
Analog signal output specifications
- Output Impedance
- 210Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA
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