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The FiiO X1’s headphone amp is noticeably less powerful than FiiO’s higher-end X3/X5 players, so the best pairings are efficient, lower-impedance headphones and IEMs rather than power-hungry full-size cans that need external amping.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Sony MDR-EX1000 | $300-$400 | Amazon · eBay |
| 2 | RHA T20 | $150-$200 | Amazon · eBay |
| 3 | RHA MA750 | $80-$110 | Amazon · eBay |
| 4 | 1MORE Triple Driver | $130-$160 | Amazon · eBay |
1. Sony MDR-EX1000
A dynamic-driver IEM frequently cited as one of the best pairings for the X1’s musical, dynamics-forward sound.
- Large dynamic driver design
- Low impedance, easy to drive
- Detailed, musical tuning
- Pairs especially well with the X1’s dynamic-driver-friendly sound signature
- No amp needed to sound its best
- Premium pricing for an IEM
Price: $300-$400
2. RHA T20
A well-regarded dynamic IEM praised as a strong match for the X1’s low-power output.
- Dynamic driver with tuning filters
- Low impedance
- Detailed midrange
- Easy to drive straight from the X1
- Tuning filters let you adjust the sound signature
- Bulkier earpieces than some competing IEMs
Price: $150-$200
3. RHA MA750
A more affordable RHA option with excellent build quality and a long warranty, praised as an easy X1 pairing.
- Stainless steel housing
- 3-year manufacturer warranty
- Low impedance for easy driving
- Great build quality for the price
- Long warranty coverage is unusual at this price point
- Less refined tuning than the pricier T20
Price: $80-$110
4. 1MORE Triple Driver
A hybrid triple-driver IEM offering a lot of technical performance for around $150, well suited to the X1’s output.
- Hybrid dynamic + balanced armature driver setup
- Detachable cable
- Low enough impedance to skip amping
- Excellent value in its price bracket
- Detailed sound without needing an external amp
- Ear tip fit is more finicky than single-dynamic-driver designs
Price: $130-$160
Buying tips
- Stick to headphones or IEMs under roughly 60 ohms — anything higher will likely be underpowered straight out of the X1.
- The X1’s line-out into an external amp is a real upgrade path if you already own higher-impedance headphones you don’t want to give up.
- Dynamic-driver IEMs tend to suit the X1’s tuning slightly better than balanced-armature-only designs, per long-time X1 owners.
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