Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What are the dimensions of the amp with a 180W output?

### Inputs:
table_name: table, columns: ['Model', 'Poweramp', 'Dimensions', 'Mass', 'Form factor(s)', 'Output']

### Response:
SELECT Dimensions FROM table WHERE Output = 180w