For a 21yo girl I'd get the Audioengine HD6 and be done with it. Includes built-in class A/B amps, DAC, Bluetooth receiver, analog input/output, and a remote. Finishes are beautiful as opposed to most other competitors in this category, which I'd think she'd also appreciate. All she needs is her phone and she's done. I bought the B2 in walnut for my brother. It looks and sounds great and he loves it, and the Bluetooth reception is excellent so I'd expect similar from HD6. BTW, Dagogo reviewed them and greatly preferred them in direct comparison to Vanatoo. You can read multiple reviews on their website. 30-day trial period as well. Best of luck.
Recos for entry level Bookshelf speaker $400-750 for 21yo nieces first system?
Looking for recommendations for a bookshelf speaker for a system I am buying my 21 yr old niece in DC. Will be used for all kinds of music, much from IPhone via Bluetooth or from Mac. Speaker should work on a shelf or tv stand so port forward or be closed. Amp will be NAD D3020 or similar small form of 30-40 w RMS. Not necessarily audiophile but good musical sound. Have read about PBS, Elac, others. I live in HI so can't hear any of these. I appreciate any and all responses.