NIKKO BETA 50 PRE AMPCompletely RECAPPED with NICHICON capacitors.All RECTIFIER DIODES have been updated with new components. Various RESISTORS in the phono circuit are upgraded to METAL FILM types.OP AMPS in the EQ AMP and FLAT AMP circuits have been upgraded to OPA2134PA units on sockets.OPERATING MANUAL is included. The PREAMP has been tested in one of my systems and works as it should. PLEASE feel free to ask any questions concerning the PREAMP and I will answer them as quickly as possible. Thank you for having a look. NO RETURNS ACCEPTED.

Nikko Alpha 230 Stack Amplifer Set. Beta 50II Pre Amp. EQ 20 Equalizer. 4 Units all tested and working. 1-230 Amp1- Beta 50II preamp1- Eq-20 1- Gamma 30 Tuner Great Set. Very good working condition. Sold as is .Fast Shipping

This vintage Nikko Beta 50 II preamp in black is a rare gem for audiophiles. With its sleek design and high-quality build, it is perfect for enhancing your home audio system. The preamp/tuner combo is easy to set up and use, and it is compatible with a wide range of audio equipment. The Nikko brand is well-known for producing top-of-the-line audio equipment, and this Beta II Gamma 40 model is no exception. Whether youre a collector or simply looking to upgrade your audio system, this Nikko preamp is a must-have.

Nikko Audio Stack- Alpha 450 Amp / Beta 20 Preamp / Gamma 20 Tuner.

Fully tested and works perfectly. All lights work as well. Does show some scratches on top and on the face as can be seen in the pictures.

I don’t really need this anymore with my current setup. Item works great. Experience high-quality audio with the Nikko Beta 50 Stereo Preamplifier. Made in Japan, this analog preamp features 6 stereo inputs and 7 outputs, including a headphone jack and stereo RCA. With 50 watts of power and a CX noise reduction system, this preamp delivers clear and crisp sound for your listening pleasure. The sleek black design and reliable brand of Nikko make this preamp a must-have for any audio enthusiast.

Fully tested and works perfectly. All lights work as well. Does show some scratches on top and on the face as can be seen in the pictures.

Fully tested and works perfectly. All lights work as well. Does show some scratches on top and on the face as can be seen in the pictures.

I inherited this along with many other vintage stereo items I am not familiar with stereo equipment therefore I do not know how to test it to the fullest extent all I can confirm is that this item turns on I’m selling this item as is

Selling this amazing sounding Vintage Nikko Beta 50 II Preamp in excellent condition. See video of operation. https://youtube.com/shorts/ci3jd43OJmw?si=4g5Dtix0D3Mc67_3

I inherited this along with many other vintage stereo items I am not familiar with stereo equipment therefore I do not know how to test it to the fullest extent all I can confirm is that this item turns on I’m selling this item as is

I inherited this along with many other vintage stereo items I am not familiar with stereo equipment therefore I do not know how to test it to the fullest extent all I can confirm is that this item turns on I’m selling this item as is

I inherited this along with many other vintage stereo items I am not familiar with stereo equipment therefore I do not know how to test it to the fullest extent all I can confirm is that this item turns on I’m selling this item as is

Nikko Alpha 450, Beta 50, EQ20, ATD1, ND-1000C magazine ad. From the 1985 issue of Andrew Marshalls Audio Ideas Guide magazine. It is an original. In good condition. Safely packed, we do include a stiff cardboard insert, the insert and ad wrapped with saran wrap and a Please Do Not Bend sticker on the envelope to help preserve the integrity of the ad.