Newly-developed servo-controlled direct drive turntable and turntable system. Rumble-free performance with lowest flutter and wow.
PS-2250 features:
Direct-drive turntable
The turntable and motor are directly coupled, eliminating idler and belt. The result is extremely silent, reliable operation.
Sony's exclusive AC servo drag cup motor
There is virtually no irregular rotation torque or vibration because of the combination of an AC motor (with non-magnetic copper material press formed into a cup shape on the rotor) and frequency generator servo mechanism
Wow and Flutter
Combination of a turntable with large-mass inertia moment and AC servo system keeps wow and flutter extremely low, less than 0,04% and 0,03% for TTS-4000
Rumble
AC servo control enables the motor to roatate at low speeds. So the rumble is virtually inaudible; under -58 dB, and _60 dB for TTS-4000
Electrical speed switching and adjustment
Adjustment is accomplished by changing the circuit constant of the servo amplifier.
Stroboscope to measure the turntable speed; Pitch control to obtain accurate speed; Feather touch speed selector
Static balanced tonearm with direct-reading gauge, anti-skating compensator and lateral balancer (PS-2250)
Specifications
Turntable System: Direct-drive
Motor: AC Servo-Controlled motor
Speeds: 33-⅓ and 45 rpm ±4% adjustable
Wow and Flutter (weighted):
WRMS : less than 0,04%
DIN 45507 : less than 0,07%
Signal-to-Noise Ratio (Weighted)
JIS : better than 58 dB
DIN 45544 : better than 67 dB
Turntable Platter
Diameter : 310 mm (12-3/16")
Weight : 1,5 kg (3 lb 5 oz) aluminium diecasted
Start-up-Time: less than 2,5 sec
Tonearm Section PUA-114
Type: Static balanced
Arm Length (Pivot-To-Stylus): 245 mm (9-21/32")
Overhang: 14 mm (9/16")
Stylus Force: 0 to 3 g adjustment (0,1 g increments)
Anti-skating Range: 0 to 3 g, (0,5 increments)
Tonearm Height Precise Adjust Range: 465 mm - 515 mm (1-27/32" - 2-1/32")
Cartridge Weight Range: 4 g to 11 g (10 g - 17 g optional counterweight CW-50)
Headshell Weight: 10,5 g
Power Requirements: 110, 127, 220 and 240 V 50/60 Hz
Power Consumption: 15 watts
Dimensions
PS-2250 (W x H x D) : 490 x 185 x 395 mm (19-9/32" x 7-9/32" x 15-11/32")
TTS-2250 (W x H x D) : 328 x 146 x 357 mm (12-29/32" x 5-3/4" x 14-1/16")
Weight (net)
PS-2250 : 11,3 kg (24 lb 15 oz)
TTS-2250 : 7,5 kg (16 lb 9 oz)
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