Differences between a PSR77, PSR180, and PSR185

The PSR77, PSR180, and PSR185 have identical specifications and features with the exception of a few specific differences listed below. For more complete information on features and specifications visit the model links at the bottom of this page.

	PSR77	PSR180/PSR185
Number of Keys	49	66
Register	C1 ~ C5	C1 ~ C6
PADS	None	4
Drum	None	16 (4 x 4)
Sound Effects	None	16 (4 x 4)
Speakers	10 cm x 2, 4 ohms (Mono)	10 cm x 2, 4 ohms (Stereo)
Dimensions (W x D x H)	38'' x 11-1/4'' x 4-1/2''	36-5/8'' x 13-5/8'' x 5-3/8''
Weight	7 lbs., 15 oz.	9 lbs. 8 oz.