Mr. Shirokazu Yazaki of SPEC Corporation (photo below, second from left) has told me how highly he regards the performance of vintage Western Electric WE16GA wire used as speaker cable. Mr. Shirokazu Yazaki uses the Western Electric WE16GA wire as speaker cables as his personal reference both for the research & development work he does for... Read More »

If you read my SPEC RSA-M3 EX Real Sound Amplifier review in Issue 78 of Positive Feedback Online, you know how impressed I am with the audio designs of Mr. Shirokazu Yazaki in Tokyo, Japan. (second from the left in the photograph below) It is my opinion that Yazaki-san is one of those rare gifted listeners/designers with an... Read More »

In the Issue 78 Positive Feedback Online review of the SPEC RSA-M3 EX Real Sound Amplifier and the SPEC RSP-901EX Real Sound Processors, I only reviewed the Real Sound Processors on my Harbeth Super HL5 loudspeakers. If you read the review, you know I was very impressed with what the Real Sound Processors did for my Harbeth Super HL5s:... Read More »

The SPEC 'Real Sound Amplifier' and 'Real Sound Processors' review is now live at Positive Feedback Online, and you can read it here. As I mentioned in my earlier post, it's a long 'feature-style' article with thirty pages of text and 65 photographs. I hope you enjoy the review. The SPEC 'Real Sound Amplifier' and 'Real... Read More »

  The SPEC RSA-M3 EX Real Sound Amplifier from Japan By Jeff Day   Most regular readers of Positive Feedback Online know of my long-time passion for vacuum tube electronics. I’ve enjoyed the musical prowess and sonic chops of contemporary artisan-designed single-ended amplifiers with various output tubes, like the EL84, 45, 2A3, 300B, F2a, and... Read More »

Today's Fresh Catch is the SPEC RSP-901EX Real Sound Processor. On my way home from the laboratory last night I picked up a parcel from the post office containing the SPEC RSP-901EX Real Sound Processor that is designed  to reduce the fluctuations of a loudspeaker’s impedance over the frequency spectrum, while absorbing the return current from the speaker... Read More »

Today's Fresh Catch is the SPEC RSA-M3 EX Real Sound Amplifier from Japan - it is a beauty!   I picked up the SPEC RSA-M3 EX Real Sound Amplifier from FedEx on my way home from the laboratory last night, and was immediately impressed upon unpacking it. For one thing, the packaging was absolutely superb, being nicely... Read More »