The PortaSound PSR-48 uses the "DASSystem" which stands for Dual Architecture Synthesis System. When it was released, a keyboard based on waveform ROM was still a pretty new idea and Yamaha was in the process of transitioning from primarily using FM to using waveforms, so it included elements of both. It can be set to dual voice mode with two sounds playing at once. Polyphony is halved to 4 in that mode. The PSR-38 is a lower-end model with fewer rhythms.
Year Released: 1990
Keyboard: 61 keys
Polyphony: 8 notes
ROM: 100 sounds, 100 rhythms
Effects: sustain, ensemble
Dimensions: 958 mm x 365 mm x 123 mm
Weight: 6.6 kg
This keyboard is MIDI-enabled.
This keyboard has built-in 2.5-watt stereo speaker(s).
Batteries: D x 6
Power Supply Replacement for YAMAHA PSR-48 KEYBOARD ADAPTER UK 12V ($11.45)
Yamaha PSR-38 / PSR-48 61-Key Electronic Keyboard Late 1990's - Black ($20)
Yamaha - PSR-I500 Indian Portable Keyboard ($425.46)
Yamaha PSR-I500 61-Key Portable Keyboard with Indian Instrument Voices ($371.89)
Yamaha PSR-E473 PORTABLE KEYBOARD (Queens,NY)(FHILLS) ($363.89)
Yamaha Psr Ew310 Portable Keyboard With 76 Keys ($605.70)
Yamaha PSR E363 ($140)
Yamaha PSR-I500 61-Key Portable Keyboard ($425.46)
Yamaha PSR-EW320 Mid-range 76-Key Portable Keyboard ($299.99)
Yamaha PSR-E363 61-Key Portable Keyboard 2017 - Present - Black ($169)
Yamaha - PSR-I400 - USB Connector ($6.90)
Yamaha PSR-E473 61-key Portable Arranger ($399.99)
Yamaha PSR-EW320 Mid-range 76-Key Portable Keyboard ($299.99)
Yamaha PSR-E473 61-Key Portable Keyboard 2021 - Present - Black ($369.99)
Yamaha PSR-EW320 76-Key Portable Keyboard 2024 - Present - Black ($299.99)
Yamaha PSR-E373 61-Key Portable Keyboard 2020 - Present - Black ($155)
Yamaha PSR-E473 61-Key Portable Keyboard ($369.99)
Yamaha PSR-E463 61-Key Portable Keyboard 2018 - Present - Black ($284.65)
Yamaha PSR-310 2000 - Black ($240)
Yamaha PSR-EW310 76-Key Portable Keyboard 2020 - Present - Black ($325)
Yamaha PSR E473 - Tastiera 61 tasti dinamici ($471.49)
Yamaha PSR-I500 61-Key Portable Keyboard new - Black ($425.46)
Yamaha PSR-EW300 76-Key Portable Keyboard | NO 12V POWER SUPPLY INCLUDED 2017 - Present - Black ($175)
Yamaha PSR-E583 61 Key Portable Keyboard ($645.50)
Yamaha PSR-E473 61-key Portable Arranger ($399.99)
Yamaha PSR-EW320 Portable Keyboard ($299.99)
Yamaha PSR-EW320 76-Key Portable Keyboard Black ($299.99)
Yamaha PSR-E383 61-Key Portable Keyboard ($199.99)
Yamaha PSR-EW320 76-Key Portable Keyboard 2024 - Present - Black ($299.99)
Yamaha PSR-E473 61 Key Portable Keyboard | Includes Soft Case ($269)
Yamaha PSR-EW310 76-Key Touch Sensitive Portable Keyboard w/ Power Supply ($180)
Yamaha PSR-E473 ($366.77)
Yamaha PSR-E463 61-Key - Black ($213.49)
Yamaha PSR-EW300 76-Key Portable Keyboard | NO 12V POWER SUPPLY INCLUDED 2017 - Present - Black ($175)
Yamaha PSR-E363 61-Key Portable Keyboard - Black ($109.25)
Yamaha PSR-E473 61-Key Portable Keyboard ($296.08)
Yamaha PSR-E473 ($295)
Yamaha PSR-E383 - Black ($179)
Yamaha PSR-E383 61-Key Portable Keyboard 2024 - Present - Black ($199.99)
Yamaha PSR E383 61-key Portable Keyboard ($199.99)
Yamaha PSR-EW320 Portable Arranger - 76 Keys ($299.99)
Yamaha PSR E473 61 key Portable Keyboard ($399.99)
Yamaha PSR-E473 61-Key Portable Keyboard - With Power Supply ($388)
Yamaha PSR-I500 Portable Keyboard for Indian Music ($449.99)
Yamaha PSR E383 ($290.67)
Yamaha PSR-EW320 76-Key Portable Keyboard 2024 - Present - Black ($280)
Yamaha PSR-E473 61-Key Digital Piano ($366.77)
Yamaha PSR-E383 61-Key Portable Keyboard - Black ($183.38)
Yamaha PSR-E383 Digital Piano ($199.99)
Yamaha PSR-E383 Portable Keyboard ($299.99)
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