Maximum PCM Sample Rate
Maximum PCM sample rate is the highest supported number of PCM samples per second, usually stated in kilohertz.
It is separate from bit depth and DSD rate. A product-wide maximum can be higher than the limit of an individual interface.
Maximum PCM Sample Rate — Optical Cable
For an optical cable, a stated PCM rate identifies a supported link condition rather than a decoding function in the cable. The optical transmitter and receiver also need to support the signal.
Compare the claimed rate at the actual cable length and connector arrangement. A cable does not increase the sending or receiving device’s limit. Keep PCM sample rate distinct from the audio file format or the optical wavelength.
Maximum PCM Sample Rate — USB Reclocker
For a USB reclocker, maximum sample rate describes supported PCM transfer under the stated connection conditions. It is separate from a word-clock input or output frequency.
Compare the relevant input/output route with the source and DAC. An overall maximum should not be assumed for every socket. DSD bitstream rates and USB bus data rates are different measurements and cannot be substituted for PCM sample rate.
Maximum PCM Sample Rate — Upscaler
For an upscaler, the maximum must be read with its direction and mode: accepted input and generated output can have different limits. A high output rate does not establish equally high input support.
Compare the supported source rate, selected conversion and receiving DAC limit on the intended interface. Keep output-specific limits with their connection and do not infer the full route from one product-wide number.
Maximum PCM Sample Rate — Equalizer
For a digital equalizer, maximum sample rate identifies the supported PCM signal rate under the stated processing or interface conditions. Some modes can impose their own limits.
Compare the required rate on both sides of the equalizer and confirm the intended processing mode. Internal DSP speed and filter-update settings are different quantities. A higher accepted rate alone does not describe the equalization functions or analogue output quality.