Nattawut Uamkruea, blogger and audio gear maker who passionate in vacuum tube, audio & music.
Producing electronics projects since high school. Seriously upgrade and modify vintage audio equipment for “Real Sound” concept.
He is a co-founder of Soundaries and Sentimental Studio, all audio solution provider.
Experienced and lively explore the listening rooms & audio shops in Japan as his most favorite to do.

Tuesday, August 25, 2015

"Rotel" Design Concept

I just remember that about 10 years ago. Time that people excited with Marantz CD-63SE modification by replace stock components with better quality like ELNA Silmic, ELNA Cerafine, Nichicon Black Gate capacitors and Burr Brown OpAmps.

I went to my friend's house and asked for his Rotel CD player to do modification.
After I got it and then open the case, I've found nothing need to replace.

Full with Black Gate, Burr Brown, high precision resistor and other high quality semiconductors.

This is my memory about Rotel quality and Rotel still do until today!

On August 24, 2015 ; I have been invited from Zonic Vision to join Rotel product training by Mr Daren Orth : Chief Technology Officer of Rotel Electronics.

Their "Balanced Design Concept" include

Power Supply Design/ Component selection/ Circuit Topology

Build Quality/ Visual Appeal/ Ease of Use .

Mr Daren show us about PCB layout and well-built quality inside Rotel Preamplifier.

Rotel RA-1570 ; 120W Integrated Amplifier with multi digital inputs.

High quality components like Panasonic FC series, Sanyo OS CON 
and low tolerance Polystyrene capacitors.

Rotel RC-1570 ; Multi analog & digital inputs Preamplifier

Mr Daren has signed certificates for all trainees.

Glad to join and got many useful knowledge, especially circuit topology concept.

Thanks to Zonic Vision for great training with great trainer.

Cheers !!!

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