# MDR-CD1700 + V700 Driver 🛠️ ![](/files/yxT2ipsFWQ3oqkyrD3Zu) Many Sony headphones from this era have identical 50mm driver housings and can be very easily swapped due to the twist locking system they all use. The following headphones have the same size drivers and can be swapped: • MDR-CD1700\ • MDR-CD770\ • MDR-CD780\ • MDR-V700 Not that anyone should ever swap them. This was purely a bit of a fun experiment as proof of concept. Also there should be more headphones in this list of easily swappable drivers, but these are the ones I am aware of. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://itsgreq.gitbook.io/headphone-measurements/sony/sony-mdr-cd1700/mdr-cd1700-+-v700-driver.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.