All posts by se

Upgrading Naim Stageline phonostage

Naim Stageline is a joke of a  phonostage, but when combined with Hi-Cap power supply it gains both in weight and in price points. Once I switched from VirtuosoWood MM to a MC cartridge, “Stageline N” went into storage and “Stageline S’ took its place.

For my cartridge,  AQ 7000 Fe5 (made by Scan Tech = Lyra and periodically sent to Lyra for rejuvenation), “Stageline S” (470 Ohm load)  is recommended. My first  impression of AQ/Stage-S was that I should immediately revert back to Virtuoso Wood and Stageline N: sonically my Sondek became “dead”… Continue reading Upgrading Naim Stageline phonostage

The most beautiful Discman in the World. Loewe CD-100

Here is the Snow White:

 

It must have been kept in storage until the grease got stiff, then played… once! Sled gears were immediately broken and so the Sleeping Beauty was packed and stashed away for a few decades…. then posted on eBay.  I was the one who bought this beautiful paperweight.   Continue reading The most beautiful Discman in the World. Loewe CD-100

Nakamichi decks and OCD – Orange Caps Disease

Matured and well-nurtured obsessive-compulsive disorder (OCD) had pushed me towards Nakamichi decks. Beautiful TEAC A-100 was more than adequate for my needs of making tapes to be played through a boombox. But how could I miss the chance to buy Nak LX-3, and then LX-5? LX-5 was professionally calibrated for me by Willy Hermann, but LX-3 I decided to fix myself.  Getting $100 Service Kit from eBay member revox-de was the first step:

A few weeks of pain and suffering resulted in a beautiful-looking (and up to specs) deck:

Continue reading Nakamichi decks and OCD – Orange Caps Disease

Portable CD Players Components Composition

PCDP Components Table in MS Excel format

PCDP Components Table in PDF format

Original table can be found at kaosuncd.com. I transferred data into MS Excel and then sorted Discmans by the year.  Some info on Sony Discmans was borrowed from sonyvintage.com; other-times extracted from Service Manuals or from the photos of the actual items undergoing surgery on my workbench. Excel file is updated each time I get a new Discman, PDF file updated only occasionally

 

 

Philips/Magnavox D6800 restoration

D6800 shall never win any Beauty Contest: it is just too big and chunky. It was designed for portable use, and all 6xAA (!) batteries should be loaded inside the player.

As already mentioned here, D-6800 has one of the most powerful headphone amplitiers among Discmans. Officially it is rated as 20mW into 32Ohm, but my own tests show the same numbers as for Sony D-50MkII and Technics SL-XP5 which are  rated at 30mW/32Ohm.

Bad news: absolutely ALL D6800 are dead by now… Continue reading Philips/Magnavox D6800 restoration

Sencor S-4800 restoration

Boomboxes from Sencor are the only Swiss boomboxes out there. “Designed in Switzerland”, made most probably in Japan. Well, at least the label for Sencor S-4500 says “Made in Japan”, whether this applies to S-4800 nobody seems to know. By looking at cassette mechanism it may be easy to tell who made these boomboxes for Sencor: JVC, Philips, Sony,… I am not in the know, but maybe someone looking at the photos will be able to recognize the mechanism.

S-480 schematics can be found here: S-4800schematics

Here are my efforts to restore S-4800 to its original state, with a bit of extra beautifying: …

Best headphones for Pono player

L1080198

Once you take the plunge and get balanced cable for Pono, you must be deaf not to hear Huge improvement in sound quality. Compared to the “real world” outside of our heads and headphones, the improvement is comparable to bi-amping or setting the speakers into active mode. According to Pono info flyers, this is exactly what is happening. One of two headphone amplifiers is turned off when Pono is in a single-ended mode. Once Pono is set for the balanced mode, both internal amplifiers are used, one for each channel. Continue reading Best headphones for Pono player