The Mackie CRX-4 speakers are another great option for audiophiles who want a relatively flat frequency response that delivers equal lows, mids and highs for a balanced music listening experience. These speakers are pretty large, so you’ll need to make sure you have space on your desk, but they offer a few different connectivity options, and they have a switch built into them to change which speaker is left and which is right. The base model does not have Bluetooth, but you can spend extra for a Bluetooth-compatible pair.