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For Sale Special very rare sony ta-4650 vfet integrated amplifier

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hifiramr

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I would like to sell an amazing sony vfet amplifier TA-4650 very rare item .I think very few in this forum well known about this.

History of the Amp

This amp was imported by my friend from Japan in good working condition then upgraded caps .I am now using this amp for the last 7 months as my main system.I am now a big fan of vfet how it sound its just amazing. I have pried it with my Spendor s3/5se and it showed me how an amp delivers musicality in all the way.

You can check more details on google lot of writings are there

Restoration

1.All main caps replaced with hi grade audio caps as mentioned above.All power and pre amplifier caps has been upgraded with nichikon and Elna slimic 2 audio grade caps except main power caps.The esr value for main big power caps are very good and its quality is simply amazing so kept those as it is.
2. Amplifier pcb cleaned accordingly.
3. Also changed speaker terminal to banana connector for easy connectivity
4. As you can see sony amplifier failure was because of their power supply diode issue which results in vfet failure most of the sony amp have this issue my friend got this issue solved accordingly and now it wont get damage for that reason its very stable.

Repair

1.The only concern for this is if vfet gone it is unobtainable yes its simply very very hard to find but my friend have some pairs left and kept for repair as he imported 5 sony vfet amps and all are given to his friends including me so he kept reserved some numbers. so I can assure about parts for a period of time.



More Details

This is Japan edition amplifier so it run in 100v step down transformer I am working this amp with us voltage step down transformer which gives me 115v output it just works fine.

Specifications
Power output: 30 watts per channel into 8 ohm (stereo)
Frequency response: 10Hz to 100kHz
Total harmonic distortion: 0.05%
Damping factor: 45
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 70dB (MM), 90dB (line)
Output: 150mV (line), 17mV (DIN), 1V (Pre out)
Speaker load impedance: 4 ohm (minimum)
Dimensions: 460 x 168 x 323mm
Weight: 12.4kg

My expected price :- Rs 26k
I will include my step-down transformer with this.
Condition:- 7.5/10
Shipping :- Possible
Reason for Sale:- Interesting question yes I am a big fan of vfet now so no turn back Got Sony TA-5650 vfet the bigger one.
Request:- Please check all details regarding this model and let me know if you have any questions.
 

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hifiramr

Active Member
Joined
Jul 10, 2011
Messages
455
Points
43
Location
India
sold and amp is now paired with full range fostex sigma series drive with super tweeter.
 
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