* Lack of intimacy: Proscenium theaters can create a feeling of separation between the actors and the audience. This can make it difficult to create a sense of intimacy or realism in a performance.
* Technical limitations: Proscenium theaters have a number of technical limitations, such as the size of the stage and the placement of the lighting. This can make it difficult to create certain types of effects or to use certain types of equipment.
* Expense: Proscenium theaters are often expensive to build and maintain. This can make it difficult for small theater companies or non-profit organizations to use these types of theaters.