Author Topic: What did you buy today? Post your latest purchase!  (Read 1300125 times)

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Online blueskull

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Re: What did you buy today? Post your latest purchase!
« Reply #4750 on: November 15, 2017, 02:43:20 am »
Interesting gadget. However, another day one of your posts gave me the impression you were fed up with Sony and were not buying their stuff anymore... Or was it only applicable to cell phones?

No phones, no laptops, no point-and-shoots, and no HiFi players/amps.
Sony still makes some very decent headphones, business oriented products and is still the world's No. 1 optical storage media manufacturer and No. 1 high end camera sensor manufacturer.
I'm totally fine with my two Sony mirrorless cameras, and some business gears (IC recorders, commercial projector, etc.).

I don't want to jinx it, but I hope this eInk paper will not fail me.
 
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Offline neo

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Re: What did you buy today? Post your latest purchase!
« Reply #4751 on: November 15, 2017, 02:46:07 am »
Interesting gadget. However, another day one of your posts gave me the impression you were fed up with Sony and were not buying their stuff anymore... Or was it only applicable to cell phones?

No phones, no laptops, no point-and-shoots, and no HiFi players/amps.
Sony still makes some very decent headphones, business oriented products and is still the world's No. 1 optical storage media manufacturer and No. 1 high end camera sensor manufacturer.
I'm totally fine with my two Sony mirrorless cameras, and some business gears (IC recorders, commercial projector, etc.).

I don't want to jinx it, but I hope this eInk paper will not fail me.

Whats wrong with their amps? I like mine, have had it for 3 years.
A hopeless addict (and slave) to TEA and a firm believer that high frequency is little more than modern hoodoo.
 

Online blueskull

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Re: What did you buy today? Post your latest purchase!
« Reply #4752 on: November 15, 2017, 02:52:28 am »
I cannot speak for blue but in my opinion Sony makes some of the best audio gear.

Heavily overpriced amplifiers and DACs with ambiguous specifications.
Their players are basically just joke. The S-MASTER is just 1 bit sigma delta, developed to save power (no opamps anymore).
For whatever reason, Sony decides to market DSD/S-master direct play technology, which is basically dumping DSD stream to RC filter then to headphone directly.
And the worst thing is that the audiophile market actually agrees with it. Don't know how much money they spent on bribing HiFi editors, though.
I have a couple S-master players, and I have to say they did a great job. It's hard to build a pure digital amplifier with such high audible background noise. They must have violated all design rules.
They do have some non-S-master devices, such as PHA series headphone amp+DAC combo, and they are some of the best specced devices, just the price is quite bloated, at $999 in US.
And I highly doubt if they have any knowledge in system engineering. PHA3 runs HOT, even hot to touch, it burns. Only Sony will sell hot to touch consumer, portable, supposedly pocketable gears.
Oh, they know that. They have a high temp sensor that will inhibit battery charging to prevent a fire -- supposedly it has happened somewhere in their R&D process. And they didn't reduce its power consumption.

They have some really good headphones, and that's it.
 

Online blueskull

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Re: What did you buy today? Post your latest purchase!
« Reply #4753 on: November 15, 2017, 03:00:50 am »
Whats wrong with their amps? I like mine, have had it for 3 years.

I'm more into headphone gears, so here amps mean HPAs.
Just check out their spec. No THD, no SNR, no nothing, just beautiful marketing BS.
Check out this one: https://www.sony.com/electronics/audio-components/ta-zh1es/specifications#features

Specs only say power output @1% THD. That's rubbish.
And look at the marketing BS, all the nice pictures are all basically saying it is a custom implemented sigma delta DAC with a dubious analog feedback (dubious because it introduces cascode error, and there's no other stages to correct those, basically the analog feedback dictates THD. Good design for sigma delta analog-to-analog amps, but not for digital-to-analog amps).
They seems to be able to manipulate the market and make everyone thinks DSD is an awesome technology, which it is just how SDM works under the hood.
Just because there is no other big company that manufactures custom implemented SDM DAC doesn't mean Sony can say whatever BS they want.
 

Offline neo

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Re: What did you buy today? Post your latest purchase!
« Reply #4754 on: November 15, 2017, 03:04:10 am »
I cannot speak for blue but in my opinion Sony makes some of the best audio gear.

Heavily overpriced amplifiers and DACs with ambiguous specifications.
Their players are basically just joke. The S-MASTER is just 1 bit sigma delta, developed to save power (no opamps anymore).
For whatever reason, Sony decides to market DSD/S-master direct play technology, which is basically dumping DSD stream to RC filter then to headphone directly.
And the worst thing is that the audiophile market actually agrees with it. Don't know how much money they spent on bribing HiFi editors, though.
I have a couple S-master players, and I have to say they did a great job. It's hard to build a pure digital amplifier with such high audible background noise. They must have violated all design rules.
They do have some non-S-master devices, such as PHA series headphone amp+DAC combo, and they are some of the best specced devices, just the price is quite bloated, at $999 in US.
And I highly doubt if they have any knowledge in system engineering. PHA3 runs HOT, even hot to touch, it burns. Only Sony will sell hot to touch consumer, portable, supposedly pocketable gears.
Oh, they know that. They have a high temp sensor that will inhibit battery charging to prevent a fire -- supposedly it has happened somewhere in their R&D process. And they didn't reduce its power consumption.

They have some really good headphones, and that's it.

On my amplifier, which is a receiver to be specific, i've never noticed noise on the headphones. I have 5 amps (and or receivers); Onkyo, Pioneer, Sherwood, Sony and a semi vintage BSR of all the BSR is my favorite, though the Sony is my second favorite.
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Online blueskull

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Re: What did you buy today? Post your latest purchase!
« Reply #4755 on: November 15, 2017, 03:07:58 am »
I don't know, on my amplifier, which is a receiver to be specific, i've never noticed noise on the headphones.

Because you probably don't have an S-master HPA or your device is a newer one.
My A845 (some of the earliest S-master players) had HUGE background noise, more than anything else -- including cellphones.
I basically had to use it with an impedance cable (those given on aircraft to attenuate seat 3.5mm jack noise) or a low sensitivity, high impedance headphone.
My ER4S works with it well with little noise, but some high sensitivity IEMs, such as my IE7, SE846 and even Sony included IEMs, all have quite some noise.
 

Offline McBryce

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Re: What did you buy today? Post your latest purchase!
« Reply #4756 on: November 15, 2017, 08:25:07 am »
I didn't buy it but made it - a solder reel holder which clears my bench of the space previously occupied by 3 discrete reel holders, makes a big difference when you hardly have any room to start with.

Are you taking orders? :)

McBryce.
 
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Offline ChrisLX200

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Re: What did you buy today? Post your latest purchase!
« Reply #4757 on: November 15, 2017, 08:52:43 am »
Quote from: McBryce on Today at 07:25:07 PM>Quote from: ChrisLX200 on Today at 06:00:01 AM
I didn't buy it but made it - a solder reel holder which clears my bench of the space previously occupied by 3 discrete reel holders, makes a big difference when you hardly have any room to start with.

Are you taking orders? :)

McBryce.


For a piece of bent mental with holes in? LOL no :)
 

Offline rdl

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Re: What did you buy today? Post your latest purchase!
« Reply #4758 on: November 15, 2017, 10:35:08 am »
I bought a Sony receiver once. If you turned the volume up past 40% the "protection" circuit would kick in and shut off the audio. I just put up with that because I lived in an apartment and didn't really need to be playing it loud anyway. After a couple of years it developed a habit of latching the volume control motor when you pressed "up" on the remote. You would have to quickly walk over and turn it down manually. Coincidentally, the "protection" circuit stopped working at the same time. This resulted in blowing a fairly expensive speaker. I ordered a different amp to replace it and when it arrived, the Sony went back in its box and into storage where it remains to this day.
 

Online nfmax

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Re: What did you buy today? Post your latest purchase!
« Reply #4759 on: November 15, 2017, 11:20:20 am »
I once came across a top-of-the-range Sony FM tuner, being used as an off-air monitor at a BBC studio. It was intermittently distorting. It turned out to be a design flaw - the OPAMP driving the final audio output was biased only by the leakage through the electrolytic capacitor on its input, so its DC operating voltage was prone to wander, sometimes provoking clipping.

We checked the circuit diagram, and this was obviously how it was 'designed'. There were DC voltages marked at key points, and sure enough, the voltage at the left & right channel OPAMP inputs was several volts different.

And nobody noticed, and nobody checked it. I wonder if it was ever tested over its specified operating temperature range?
 

Offline capt bullshot

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Re: What did you buy today? Post your latest purchase!
« Reply #4760 on: November 15, 2017, 11:46:14 am »
Sony stuff: That's the reason(s) why in Germany Sony is pronounced like "So nie" - never this way  ;D
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Offline Watth

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Re: What did you buy today? Post your latest purchase!
« Reply #4761 on: November 15, 2017, 05:11:04 pm »
An Extech EX330!
Because "Matth" was already taken.
 

Online thm_w

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Re: What did you buy today? Post your latest purchase!
« Reply #4762 on: November 15, 2017, 10:13:13 pm »
I'm more into headphone gears, so here amps mean HPAs.
Just check out their spec. No THD, no SNR, no nothing, just beautiful marketing BS.
Check out this one: https://www.sony.com/electronics/audio-components/ta-zh1es/specifications#features

Specs only say power output @1% THD. That's rubbish.

So would SNR capture the level of hiss with no input? I bought some Kanto amp/speakers and they were completely unusable due to hiss. Now I'm not surprised they don't state SNR in the specs.

Swapped them out for an Alientek D8 and its far superior (quoted SNR of 100dB, classD but MAX9722 for headphones). Some hiss is still present, but the amp is much smarter and will shut the output off as soon as no input or 0 volume is present. So hiss is not noticeable (wonder if sony figured that out). I can't really grasp why you'd use classD for headphones, unless you are conserving battery.
 

Offline bjcuizon

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Re: What did you buy today? Post your latest purchase!
« Reply #4763 on: November 16, 2017, 03:29:59 am »
I got some things from the local second hand shop:
- lots of surplus wire (unknown length) probably more than 10 meters each. The topmost one on the picture looks like it has a silicone jacket as it is flexible, and is roughly 14awg. The one in the middle is some ~24awg thin ones, probably 15m or more in length. The bottom one is cat5 something...most likely for ethernet. They are all for $5.  8)

- and a vintage (1953, it's what I get on the date code) General Electric 7-2584a dual band pocket receiver for 2 bucks :D It was quite dusty when I saw it and I had to do a bit of cleaning.
« Last Edit: November 16, 2017, 05:57:30 am by bjcuizon »
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Offline cdev

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Re: What did you buy today? Post your latest purchase!
« Reply #4764 on: November 16, 2017, 03:36:27 am »
That radio looks to me to be maybe from around the the 1980s? Thats my guess.
"What the large print giveth, the small print taketh away."
 
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Online blueskull

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Re: What did you buy today? Post your latest purchase!
« Reply #4765 on: November 16, 2017, 03:39:54 am »
So would SNR capture the level of hiss with no input? I bought some Kanto amp/speakers and they were completely unusable due to hiss. Now I'm not surprised they don't state SNR in the specs.

SNR is an interesting term in audio design, and most people will not say this word.
SNR means signal to noise ratio, here noise means quantization error (input related noise) and random noise (input non-related noise).
Another term, DNR (dynamic range), means the ratio between maximum output level and quiescent output level, so to make this number look nicer, audio gear manufacturers rate DNR as the ratio between full scale output at maximum analog gain and zero digital input at minimum analog gain.
So, if a system uses a DAC with only 100dB SNR and has 80dB analog volume control, while the system can output 10Vrms FS with 1uVrms background noise, then the manufacturer can claim 140dB dynamic range.
Just like the A/C/whatever-weighted thing, rating DNR instead of SNR is just another trick to make numbers look good.

In my case, both SNR and DNR suck, because the random background noise alone is way higher than an acceptable range.
 
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Offline bjcuizon

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Re: What did you buy today? Post your latest purchase!
« Reply #4766 on: November 16, 2017, 03:45:04 am »
That radio looks to me to be maybe from around the the 1980s? Thats my guess.
I'm not really sure, it just says in the yellowish sticker paper in the battery compartment: "DATE CODE: 5329"
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Offline rsjsouza

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Re: What did you buy today? Post your latest purchase!
« Reply #4767 on: November 16, 2017, 03:56:49 am »
That radio looks to me to be maybe from around the the 1980s? Thats my guess.
I'm not really sure, it just says in the yellowish sticker paper in the battery compartment: "DATE CODE: 5329"
It is a GE 7-2584 that can be found in several eBay listings. The date code may well be 29-March-1985 but given one of the photographs on the internet says it is "Made in China", that puts it well into the 1990s or early 2000s.

The first transistor radio, the Regency TR-1, was released in 1954.
 
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Offline bjcuizon

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Re: What did you buy today? Post your latest purchase!
« Reply #4768 on: November 16, 2017, 04:17:26 am »
That radio looks to me to be maybe from around the the 1980s? Thats my guess.
I'm not really sure, it just says in the yellowish sticker paper in the battery compartment: "DATE CODE: 5329"
It is a GE 7-2584 that can be found in several eBay listings. The date code may well be 29-March-1985 but given one of the photographs on the internet says it is "Made in China", that puts it well into the 1990s or early 2000s.

The first transistor radio, the Regency TR-1, was released in 1954.
Okay, thanks for the info. Yeah, it's probably really made in the late 80's as cdev said. Anyway, it was a really good bargain.
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Offline nowlan

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Re: What did you buy today? Post your latest purchase!
« Reply #4769 on: November 16, 2017, 08:27:02 am »
It was the Aneng AN8008 that Dave recommended and specifically warned not to mix it up with the lesser AN800x models.

Crap! Bought an 8002 too. Local seller, but didn't ship for a week, until i followed up. Still looking for 2 AAA to play with it.
 

Offline Specmaster

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Re: What did you buy today? Post your latest purchase!
« Reply #4770 on: November 16, 2017, 08:48:27 am »
Just ordered some capacitors, resistors, binding posts and an ABS project box from Mouser for stock mostly.
Who let Murphy in?
 

Offline NottheDan

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Re: What did you buy today? Post your latest purchase!
« Reply #4771 on: November 16, 2017, 12:48:54 pm »
Got a Fluke 8050A with a few marks on the case but in fine working order and a Philip Harris Digicounter that had the 250A fuse substitution mod installed. Of couse the screw inser is missing and I don't have a replacement at hand.
 

Offline s8548a

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Re: What did you buy today? Post your latest purchase!
« Reply #4772 on: November 16, 2017, 04:24:34 pm »
Got a couple of cool gadgets from Mr.Franky.

 

Offline ChrisLX200

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Re: What did you buy today? Post your latest purchase!
« Reply #4773 on: November 16, 2017, 06:45:11 pm »
I was after a Rb standard to feed 10MHz into my Racal 1998, Siglent 1025, and Tek scope, but I spotted a slightly beaten-up (but still functional) Racal 2202R so bought that instead.
It has two 10MHz outputs on the rear, and two additional unpopulated (blank plugged) outputs. Anyone aware what is required to get those extra outputs functional?
 

Offline Specmaster

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Re: What did you buy today? Post your latest purchase!
« Reply #4774 on: November 16, 2017, 07:10:25 pm »
Got a couple of cool gadgets from Mr.Franky.


Those cables etc positively look like they're orange to my eye?
Who let Murphy in?
 


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