Yamaha DGX-670 review

Model overview

The useful question is whether you want to develop complete songs at the piano. A practice-only instrument and an arranger can both have 88 weighted keys, yet encourage different habits. Set a realistic first project: a melody with a backing part, a recorded vocal, or several separately recorded parts. If that sounds inviting, the DGX deserves an audition. If you mainly want to open a score and play, compare the Yamaha P-225 before deciding that more features equal better value.

Keyboard action

Piano Tone describes GHS as smooth and responsive and personally prefers its lighter, quicker response to Roland’s PHA-4. PianoDreamers is less impressed, calling the action adequate rather than a highlight. Bonedo finds the weighted keyboard readily playable. Keep those assessments separate: a mechanism can be comfortable for one player and insufficiently refined for another. Test pianissimo control and repetition on a familiar piece. Touch-sensitivity settings alter the response of the sound; they are not a mechanical adjustment to the keys.

Speakers and headphones

The disagreement here matters. PianoDreamers hears limited detail and a muddier result when the built-in speakers are pushed, while Piano Tone is strongly positive about their sound. Bonedo describes a balanced system. We cannot resolve those different rooms, settings and preferences into a universal verdict. Try the same passage at your real home volume, then with a busy accompaniment and then through headphones. A power rating alone cannot predict whether this particular presentation will satisfy you.

Controls and practice

Bonedo notes that the display is operated by surrounding buttons rather than touch. Do not let its size create the wrong expectation. PianoDreamers praises the interface, but a Sweetwater owner describes programming as something that takes learning. Both can be true: clear feedback helps, while a large feature set still requires familiarity. Ask to save and recover one setup yourself. That task is more revealing than watching a demonstrator move quickly through menus they already know.

Recording and arranging

Yamaha documents a 16-track MIDI recorder and separate USB WAV audio recording. Choose between them by what you want to revise: a MIDI project retains performance information, whereas an audio recording captures the resulting sound. The accompaniment controls give this model a different role from a plain portable piano. Begin an audition with a simple style, adjust its level and practise stopping cleanly. If the backing makes you rush or distracts from listening, keep it out of technique practice and use it intentionally for arranging.

Connections and daily use

The headphone connection also serves external audio output; there are no separate stereo line sockets in the documented connector list. This matters if you expect independent headphone and mixer connections. Have the seller demonstrate your exact amplification arrangement. Bluetooth Audio and USB audio are different routes, and neither should be interpreted as a promise of built-in Bluetooth MIDI. For lessons or recording, confirm the intended app and cable rather than buying an adapter on the basis of the Bluetooth name alone.

Owner evidence

In the Sweetwater sample, sound and feature variety receive repeated praise, while weight and the time needed to learn programming also appear. A contributor reports more than three years of enjoyment, but the review heading contains a different model number; that ambiguity limits how much weight we place on it. Piano Tone clearly identifies personal ownership, although the main article is an initial overview rather than a controlled long-term study. None of this establishes a failure rate or proves that one brand is more durable.

Setup and accessories

The manufacturer lists a 21.4 kg instrument and a deep cabinet for a portable piano. Measure the actual space, including rear cable clearance and the seat, and check the stand’s rated capacity and support points. The matching L-300 stand and LP-1 pedal unit are optional. A basic supplied footswitch is not the same purchasing proposition as a full pedal installation. Obtain an itemized quote and confirm the regional power-adaptor package, especially when comparing retailer bundles.

Pricing

USD 849.99 observed price (checked 2026-10-28). Confirm current price and availability. — The main Sweetwater instrument listing showed USD 849.99 when checked October 28, 2026; a separately retrieved older review page still showed USD 799.99 and an expired financing banner. We use the main product listing as the dated observation, not the stale review-page price. Neither amount is being presented as MSRP or a permanent price. See the key specifications table below for the same price reference and related facts.

Tradeoffs and conclusion

Compare the Roland FP-E50 if physical mixing controls, vocal effects and dedicated stereo outputs are important. Compare the Yamaha P-225 if compact placement is more valuable than arranging. For the DGX, spending money on the correct stand, pedal and comfortable listening setup may matter more than collecting another set of sounds. Choose it because song making will become part of your routine; skip it if the extra panel and weight create work you did not want.

Sources and research

• Yamaha USA DGX-670 specifications — manufacturer
• Yamaha DGX-670 owner’s manual — manufacturer
• PianoDreamers: DGX-670 review — independent review
• Piano Tone: DGX-670 owner review and linked demonstrations — independent review
• Bonedo: Christian Frentzen tests the DGX-670 — independent review
• Sweetwater DGX-670 customer reports — owner reviews
• Sweetwater DGX-670 black instrument listing — retailer
• Yamaha U.S. keyboard warranty categories — manufacturer

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