Sphinx II vs Marantz PM-15S2
The PM-15S2's power @ 8ω is 90W against the Sphinx II's 100W, its power @ 4ω 140W against 200W, its thd 0.050% against 0.100%, and its damping factor >100 against >1000.
AI-generated product photo — not official manufacturer imagery.
AmplifiersIntegrated AmplifiersPhono Pre-AmpsHeadphone AmplifiersTube Amplifiers
Estimated price (community-sourced)
$900 - $1,299
Around — community and catalog average, updates slowly
About the Sphinx II
The Rogue Audio Sphinx v2 is a dynamic, transparent, and musical hybrid integrated amplifier featuring a pure tube mu-follower preamplifier section with matched 12AU7 tubes paired with a Class D output stage. It includes a discrete headphone amplifier, 45dB phono stage for high-output MM/MC cartridges, active outputs for subwoofers or bi-amping, and a high-capacity 375VA toroidal transformer with massive linear power supply. Hand-built in the USA with gold-plated RCA inputs and binding posts, machined aluminum faceplate, Alps volume pot, and optional metal remote. Known for outperforming more expensive separates, with low power consumption (6W standby, 132W at half power, 250W full), slow start sequencing, and three-year warranty (six months on tubes).
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 100W @ 8Ω
- Power @ 4Ω
- 200W @ 4Ω
- Amplifier Class
- D
- Damping Factor
- >1000
- Input Sensitivity
- 1.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.100%
- Output Voltage
- 1.0V RMS
Phono Preamplifier
Phono stage specifications
- MM Gain
- 45 dB
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA, Phono
- Analog Outputs
- RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 394 × 127 × 432 mm (W × H × D)
- Weight
- 11.3 kg (25 lbs)
Key Specifications
Power: 100W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions