Product research
Specifications, manuals and independent publications used in these comparisons.
Roland, Manufacturer specification, Reviewed October 2, 2026
Exact FP-30X manual. Printed pages 2, 4, 5, 9 and 11 establish volume controls, two simultaneous stereo headphone listeners, different plug sizes, rear connections, Twin Piano pedal limits and default Speaker Auto Mute. The two sockets do not establish independent volume controls or two complete pedal setups.
Roland, Manufacturer specification, Reviewed October 2, 2026
Exact model. Complete connector list has stereo mini and quarter-inch headphone sockets, USB and line outputs, with no analog audio input. Bluetooth audio and MIDI are separately specified. DP-2, music rest and power supply are included. Matching stand and pedal unit are optional. No current offer or comparative sound claim is used.
Korg, Manufacturer specification, Reviewed October 2, 2026
April 2025 English manual, exact B2+ sections. Printed En-2 identifies the stereo mini PHONES and AUDIO IN connections, speaker muting and source-volume warning. AUDIO IN reaches speakers and PHONES but explicitly cannot leave through USB-AUDIO. En-3 limits AUDIO IN and PHONES cables to 3 m or less. En-4 separates portable B2+ accessories from the B2+SP furniture package. The En-2 and En-3 spread was visually inspected.
Korg, Manufacturer specification, Reviewed October 2, 2026
Confirms one PHONES/Line Out socket, AUDIO IN, USB Type-C and supplied AC adapter, music rest and damper. STB1 and PU-2 are separate accessories. Only the portable B2+ package is compared. No live stock, price or third-party bundle contents are asserted.
Korg, Manufacturer specification, Reviewed October 2, 2026
Exact B2+ connectivity sections confirm analog-player practice and USB Type-C MIDI and audio. USB cable and any required device adapter are separate. Main manual governs headphone routing and the exclusion of analog input from USB output. Promotional sound-quality and learning-speed claims are not used.
Yamaha, Manufacturer specification, Reviewed October 1, 2026
Column-aligned US table. P-145BT and P-225 both provide stereo USB audio. P-225 has two headphone sockets, two MIDI recorder tracks and dedicated line outputs. P-145BT has one headphone socket and no internal MIDI recorder.
Yamaha, Manufacturer specification, Reviewed October 1, 2026
Pages 37, 46 to 49. Independent hand recording. USB carries audio and MIDI. Windows requires the Yamaha Steinberg USB driver. Direct computer USB connection is specified. Audio Loopback defaults on, but the manual directs DAW users to turn it off. Bluetooth audio is receive-only and does not provide Smart Pianist connectivity.
Roland, Manufacturer specification, Reviewed October 1, 2026
US page confirms USB audio/MIDI, Bluetooth audio and MIDI, two headphone sockets of different sizes and an internal one-part MIDI recorder. USB flash-drive WAV/MP3 playback is separate from live USB audio.
Korg, Manufacturer specification, Reviewed October 1, 2026
April 2025 instructions, pages 4 to 5. Confirms audio playback and recording through the computer USB connection. Windows standard MIDI driver does not allow multiple simultaneous applications. Korg USB-MIDI driver is required for that use.
Kawai, Manufacturer specification, Reviewed October 3, 2026
25 sounds, 100 drum rhythms, integrated Bluetooth audio/MIDI, two headphone jacks and dedicated line outputs. Bare-body dimensions and AC power kept separate from music-rest clearance. No measured action, latency or quietness superiority.
Kawai, Manufacturer specification, Reviewed October 3, 2026
Pages 8, 14, 24, 28 and 33 distinguish USB MIDI, three-song 15,000-note internal recorder, analog audio outputs, Low Volume Balance and headphone socket sizes. F-1SP switch pedal is included, with half-damper accessories separately specified. No flash WAV or USB audio inferred.
Korg, Manufacturer specification, Reviewed October 3, 2026
Partner Mode is documented on page 1. The Sound is interrupted section explains 60-note polyphony for most sounds, 40 for Italian Concert, Ballad and Jazz Piano and 120 for stage electric piano. No cross-brand note-stealing prediction inferred.
Korg, Manufacturer specification, Reviewed October 3, 2026
One combined Phones/Line Out, Audio In, USB-C, 336 mm body depth excluding music stand and 11.4 kg excluding music stand. B2+ is distinguished from B2 and B2+SP.
Korg, Manufacturer specification, Reviewed October 3, 2026
USB-C carries audio and MIDI, 12 sounds, analog Audio In and Partner Mode. Device requirements remain applicable and connector shape alone does not establish phone compatibility.
Roland, Manufacturer specification, Reviewed October 3, 2026
56 front-panel tones and 321 through Roland Piano App, USB audio/MIDI, built-in Bluetooth, twin headphone outputs, Twin Piano and AC power. Flash audio playback differs from performance recording.
Roland, Manufacturer specification, Reviewed October 3, 2026
Internal recorder holds one MIDI song. Saved performances on a supported flash drive of 32 GB or less are MIDI, while audio recording uses a computer through USB Computer. No stand-alone WAV recording inferred from WAV playback.
Yamaha, Manufacturer specification, Reviewed October 3, 2026
USB audio 44.1 kHz at 24 bit, two-track MIDI recording, body and music-rest dimensions, two headphone sockets, 11.5 kg and AC power. US model has Bluetooth audio reception. No physical key-noise test inferred.
Casio, Manufacturer specification, Reviewed October 3, 2026
Instrument section documents removing the supplied WU-BT10 Bluetooth adapter to use USB-A for flash-drive MIDI and WAV recording. Package-specific accessories of this SC page are not attributed to the linked BK base piano.
Casio, Manufacturer specification, Reviewed October 3, 2026
Exact model, 232 mm body depth, 11.4 kg excluding batteries, six AA alkaline batteries with roughly two hours of continuous demo playback. Duet, two headphone sockets, three-track MIDI and flash WAV recording. Battery runtime is conditional.
Casio, Manufacturer specification, Reviewed October 3, 2026
USB-A hosts WU-BT10, USB-B exchanges MIDI with a computer, wired stereo Audio In and analog Line Out. USB MIDI is not capture of the piano internal audio engine.
Yamaha, Manufacturer specification, Reviewed October 3, 2026
1336 by 376 mm bare body. With optional stand and music rest, depth 402 mm. Optional stand without rest 377 mm. Two headphone sockets, stereo AUX IN, no mic input in complete connector list. FC3A included, L-515 and three-pedal units separate. USB audio interface, 16-track MIDI recorder, 250 song slots with about 1.4 MB shared internal memory. No unlimited song capacity, key-feel superiority or medical benefit inferred.
Roland, Manufacturer specification, Reviewed October 3, 2026
Body without music rest 1340 by 390 by 136 mm. With optional KSC-90 and music rest, depth 418 mm. With KSC-90, KPD-90 and rest, 37.8 kg. Base with rest 23.6 kg. Included DP-10 continuous pedal, optional furniture and portable three-pedal arrangements. Two headphones, mic and analog inputs, USB audio/MIDI, one-part MIDI recorder and flash WAV recording. Bluetooth reception does not establish Bluetooth headphone output.
Kawai, Manufacturer specification, Reviewed October 3, 2026
17 kg without rest and 17.5 kg with rest. Body 1340 by 375 mm, 430 mm deep with rest. Two-part internal recorder, 100 chord-following Rhythm Section styles, direct MP3/WAV flash recording and Bluetooth-audio recording. F-10H half-pedal included, stand and three-pedal accessories separate. USB to Host is MIDI. Complete input list has stereo Line In, no microphone input.
Kawai, Manufacturer specification, Reviewed October 3, 2026
Exact manufacturer manual. Two-part internal recording and separate audio-file recording. Page 127 states a Bluetooth MIDI connection disables USB MIDI and MIDI IN/OUT. Pages 129 to 130 distinguish computer MIDI from flash MP3/WAV. Page 129 says wired headphones mute speakers irrespective of speaker-switch position. No assumption of concurrent wired and wireless MIDI, USB audio, or mic-level compatibility for Line In.
Yamaha, Manufacturer specification, Reviewed October 3, 2026
1397 by 445 mm body, GHS keyboard, score screen, 16 MIDI tracks, microphone input and one PHONES/OUTPUT. USB audio and MIDI. The screen is not evidence of improved learning.
Yamaha, Manufacturer specification, Reviewed October 3, 2026
Pages 69 and 75 distinguish 16-channel MIDI song recording from WAV audio of keyboard, accompaniment, song and mic. Song Creator reference supports MIDI part editing. Page 105 Speaker Headphone Switch setting mutes speakers with headphones. No 16-track vocal recording claim.
Roland, Manufacturer specification, Reviewed October 3, 2026
PHA-4 Standard, 17.1 kg with music rest, 1300 by 322 by 174 mm without rest. DP-2 switch supplied. USB audio/MIDI, mic and analog inputs, two headphones. Style count depends on firmware so no unconditional count retained.
Roland, Manufacturer specification, Reviewed October 3, 2026
Pages 10, 51 to 52, 62 and 68. Audio overdubbing builds parts but no punch-in/out. Restart at beginning and allow the backing sound to fade before stopping. Bluetooth and analog input audio can be recorded. Speaker Auto Mute must remain on for headphone-only practice. Twin Piano routing does not establish independent headphone volume.
Roland, Manufacturer specification, Reviewed October 3, 2026
Official support says Bluetooth headphones are unsupported. Bluetooth audio reception is not wireless headphone output.
Roland, Manufacturer specification, Reviewed October 3, 2026
PHA-4 Standard, 19.3 kg with music rest. Body 1291 by 344 by 126 mm without rest. DP-10 continuous pedal included, optional RPU-3 or stand-specific KPD-90. One-part MIDI recorder, WAV recording to flash drive, mic effects and USB audio/MIDI. No accompaniment style library inferred from tone count.
Casio, Manufacturer specification, Reviewed October 3, 2026
Smart Hybrid Hammer, 350 tones, two headphones, 1340 by 242 by 102 mm, 14.8 kg excluding batteries/accessories. SP-3 and WU-BT10 supplied, stand and SP-34 optional. Eight AA battery option. Two-track five-song MIDI recorder and flash audio recording. Computer USB MIDI is distinct from flash-drive audio recording.
Casio, Manufacturer specification, Reviewed October 3, 2026
Printed EN-111 to 123 and external-device section. Five two-track MIDI songs. WAV audio goes to USB flash drive, up to about 25 minutes per file. USB-A also accepts WU-BT10, computer USB is MIDI. Official PDF indexed text and manufacturer manual reproduction corroborate the recorder path. No computer USB-audio claim adopted from ambiguous marketing shorthand.
Casio, Manufacturer specification, Reviewed October 3, 2026
Harmonious Mustard selected Amazon configuration. Stand and fixed three pedals included. Bare body 14.8 kg, 1340 by 242 by 102 mm. Assembly figures distinguish music rest included from excluded.
Casio, Manufacturer specification, Reviewed October 3, 2026
Manufacturer manual retrieved intact from Klangfarbe mirror after official host denied direct download. Printed EN-116 to 118 explicitly includes Bluetooth audio in internal recording only, about 18 minutes total shared across up to 99 files, versus about 25 minutes per USB file. EN-151 specifies computer MIDI, not USB audio. EN-166 assembly with rest 1340 by 449 by 903 mm, 29.1 kg. EN-20 speaker muting can be overridden. No unlimited recording or wireless headphone claim.
Casio, Manufacturer specification, Reviewed October 3, 2026
Official product lineup links exact black PX-S6000 and Harmonious Mustard PX-S7000 images. Both can use batteries. Removing PX-S7000 from the stand does not include a second portable three-pedal unit. Marketing feel and sound superiority are not comparative test results.
Yamaha, Manufacturer specification, Reviewed September 22, 2026
The microphone is recorded through USB Audio Recorder. The 16 MIDI tracks do not record microphone audio.
Roland, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Roland, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Roland, Manufacturer specification, Reviewed September 22, 2026
Page9 checked. The single damper affects the right Twin Piano section. With optional KPD-70, the soft pedal serves the left section.
Yamaha, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Yamaha, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Yamaha, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Yamaha, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Yamaha, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Yamaha, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Yamaha, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Yamaha, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Casio, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Casio, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Casio, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Casio, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Casio, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Casio, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Casio, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Kawai, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Kawai, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Kawai, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Kawai, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Roland, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Roland, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Korg, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Korg, Manufacturer specification, Reviewed September 22, 2026
Supplementary exact-model connection reference.
Korg, Manufacturer specification, Reviewed September 22, 2026
Partner Mode confirmed. The instrument still has one headphone socket. Two-person headphone routing is not inferred from this mode.
Korg, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Korg, Manufacturer specification, Reviewed September 22, 2026
Supplementary exact-model connection reference.
Korg, Manufacturer specification, Reviewed September 22, 2026
Supplementary exact-model connection reference.
Korg, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Korg, Manufacturer specification, Reviewed September 22, 2026
Supplementary exact-model connection reference.
Korg, Manufacturer specification, Reviewed September 22, 2026
Partner Mode confirmed. The instrument still has one headphone socket. Two-person headphone routing is not inferred from this mode.
Korg, Manufacturer specification, Reviewed September 22, 2026
Exact model checked. Portable body and assembled cabinet measurements remain distinct. Optional accessories are separated from included parts. No matched sound or key-feel test is claimed.
Amazon US, Product listing, Reviewed September 22, 2026
Exact model, selected color and enabled purchase controls checked in Chrome. Offers and delivery dates can change.
Korg, Manufacturer specification, Reviewed September 22, 2026
Printed pages21 and24 checked. Twelve total parts include four keyboard and eight accompaniment parts. User-song overdubbing is supported. Muting while overdubbing is not recorded.
