MD90 vs Jolida (Shanghai) JD-502A
The JD-502A's power @ 8ω is 85W against the MD90's 150W, its signal-to-noise 85 dB against 98 dB, and its output impedance 8Ω against 4Ω. Both share thd (1.000%).
AI-generated product photo — not official manufacturer imagery.
About the MD90
The Ming Da MD90 is a high-quality mono block tube amplifier that delivers 150 watts of power in ultra-linear push-pull mode and 90 watts in triode mode. It uses two matched pairs of KT90 valves to provide smooth, powerful amplification. The amplifier includes a standby switch to allow a warm-up period before full operation, which helps preserve valve longevity. It features a frequency response of 20Hz to 40kHz ±1dB, input sensitivity of 1200mV, input impedance of 100K, and a signal-to-noise ratio of 98dB. The outputs are gold-plated 4mm posts, and the input is a gold-plated RCA phono connector. The MD90 is supplied in pairs for stereo setups and is appreciated for its silky smooth sound and robust power output.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 150W @ 8Ω
- Amplifier Class
- tube
- Minimum Impedance
- 4Ω
- Input Sensitivity
- 1.2V RMS
- Input Impedance
- 100000Ω
Analog Output
Analog signal output specifications
- THD
- 1.000%
- SNR
- 98 dB
- Output Impedance
- 4Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA
- Analog Outputs
- 4mm posts
Key Specifications
Power: 150W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions