Condition: Fully working excellent condition.

Technical specifications for the ROTEL RX-202 MK II Vintage HiFi Stereo Receiver Amplifier:

1. **Power Output**: The power output specification indicates the amount of power the amplifier can deliver to connected speakers. For the ROTEL RX-202 MK II, this might be specified as wattage per channel, typically measured in watts RMS (Root Mean Square).

2. **Frequency Response**: Frequency response refers to the range of frequencies the amplifier can reproduce accurately. It's usually expressed in Hertz (Hz) and measured between the lower and upper limits where the output remains within a specified tolerance, such as ±3 decibels.

3. **Total Harmonic Distortion (THD)**: THD measures the level of distortion introduced by the amplifier during signal amplification. Lower THD values indicate better fidelity. This specification may be expressed as a percentage and measured across the amplifier's frequency range at a given output power.

4. **Signal-to-Noise Ratio (SNR)**: SNR represents the ratio of the signal strength to the background noise level, typically expressed in decibels (dB). A higher SNR indicates cleaner audio output with less audible noise.

5. **Input and Output Connectivity**: This specification details the types and number of input and output connections available on the amplifier. Common inputs include RCA (phono), AUX, and sometimes digital inputs like optical or coaxial. Output connections may include terminals for connecting speakers and possibly a headphone jack.