Start with the parts: if both players need the full keyboard range, playing in the standard mode matters more than a Duo or Twin Piano mode that splits the keyboard. Then check how you’ll listen together and how much space the complete set-up will take; stage features matter most if you also plan to use the instrument for performances.
You play pieces together where each player needs their own range of notes. Yamaha lists 88 keys and a Duo function for the P-225. Check that the function suits the parts, as a split keyboard is not the same as two full keyboards.
You both want to listen without always playing through the built-in speakers. Roland lists two headphone outputs for the FP-30X; check how many sockets are available on other models.
You also use the piano outside the spare room, so portability, sound zones and the required listening set-up all matter. Roland lists three zones for the RD-88 EX; Nord lists two audio outputs and one headphone output for the Piano 6.
First check that both parts fit the playing mode you want. Then choose your listening set-up and measure the space for the complete instrument.
| What to consider | What to look for | Who is it important for? |
|---|---|---|
| Keyboard range | Compare the parts with the keyboard layout and try playing them together in standard mode. Duo or Twin Piano mode splits the keyboard. | If both parts need a wide or overlapping range, I don’t want a practice mode to put some keys out of reach; around 36% of consumers prioritise having the full range for a duet. |
| Listening together | Check whether the built-in speakers suit your rehearsals and how many headphone outputs the exact model has. | If you want to practise together without using the speakers, you’ll need a listening solution for two players; around 29% of consumers prioritise listening quietly together. |
| Space and set-up | Measure the available width and depth for the instrument, stand, pedals and two seats. Check which parts are included with the model. | In a small spare room, I want to know whether the whole playing area will fit, not just the piano itself; around 21% of consumers prioritise the room set-up. |
| Stage features | Decide whether you’ll also be performing, then compare the zones, audio outputs, speakers and included parts for the exact model. | If I want to use the piano away from home too, stage controls and connections may matter alongside a simple home set-up; around 14% of consumers prioritise stage versatility. |
A Duo or Twin Piano function splits the keyboard. This can be inconvenient when both parts need a wider or overlapping range.
Try playing the parts together in standard mode before treating this function as a decisive advantage. Yamaha describes the P-225’s Duo function, while Roland describes a similar practice function for the FP-30X.
Listening options vary by model. Roland lists built-in stereo speakers for the RD-88 EX, but check the speakers and connections on the version you’re considering.
Decide in advance how both players will listen and, if needed, what external equipment will work with your set-up.
Connections vary between models: Roland lists two headphone outputs for the FP-30X, while Korg lists one combined headphone/line output for the B2 and Nord lists one headphone output for the Piano 6.
Check how many players can listen at the same time and whether the connections work with your headphones.
If there aren’t enough compatible connections, you may need an additional listening solution.
The P-225 is worth considering if you’re looking for an 88-key keyboard in a relatively shallow casing.
The FP-30X and RD-88 EX are different options to compare for listening at home and stage use.
The B2 is a useful point of comparison if you’re looking for a digital piano with a weighted 88-key keyboard and built-in amplification.
The Piano 6 is a useful comparison if you’re also looking for stage-ready sounds, layers and hands-on controls.
These Joybuy options are 61-key digital pianos with built-in stereo speakers. They’re best suited to duets where both parts fit within that range and you want to listen together through the speakers.
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Suitable for rehearsals where both parts fit within the 61-key range and you want to listen through the built-in stereo speakers.
The weighted keyboard has 61 keys, fewer than an 88-key keyboard, so check the range needed for both parts. The product name also lists 300 sounds, 300 rhythms, an LCD screen, USB-MIDI and a headphone socket.
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Could suit rehearsals where both parts stay within 61 keys and you listen through the built-in stereo speakers.
The keyboard has 61 keys, fewer than an 88-key keyboard, so compare its range with the duet parts. The product description lists 500 sounds, 300 rhythms and USB-MIDI.
No, not if you can play the parts in standard mode. Duo or Twin Piano mode splits the keyboard; use it when practising two similar passages side by side matters more than having the full range for both parts.
Measure the space for the instrument as well as the stand, pedals, music rest and two players. Also check which parts are included with the version you’ve chosen: Korg lists the stand as optional for the B2.
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