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Thanks for your comment! It did take off; we sold many thousands of soundbars, but competition and misdirection fromn competitors slowed us down. Now we are working on better ways of hearing spatial sound like Dolby Atmos. It's called Airsound (www.airsound.com)

@@tedfletcher7334 I have a full atmos system which is great but daunting to most people with cost and it just has so many speakers it takes over most living rooms. If you can reduce it to two or three speakers not my 12 it would bring atmos to the masses. Nice 👍

Should work OK, make sure the link switches on the rear panel are not pressed.🙂

The 828 Mk3 mic amp is unique in that it uses descrete transistors and works in 'class A' . It is very low noise and almost impossible to overload. The XTX131 is a 'class A/B' type, very clean sounding. The Brick mic amp uses a transformer and a MC4580 low noise chip using my 'shared gain' technique to achieve good overload performance.

@@tedfletcher7334 Thanks for the info Ted, very interesting.

It depends on what you mean by 'similar'; it's a very basic design and uses the XTX131 V2 descrete low noise op-amp simply coupled to input and output transformers. The XTX131 dates back to the 80s when a number of manufacturers developed their own descrete op-amps to achieve reliable low-noise performance. We were experimenting with descrete op-amps at Alice in the early 70s and I suspect that Andy followed on with his own experiments after he took over the Company in the early 80s.

Hi Ted, thank you for the quick reply and explanation. It’s great to see this has been improved and given a new lease of life. I have an old XTX131 but this looks fantastic. I’ll certainly be looking at buying myself a couple of these from Alice in the future. Thanks again

@@tedfletcher7334 Hi Ted, I have sent an email to you with some bits I wanted you to see. Hopefully you received it ok and It hasn’t landed in the junk folder.

Speaker design is ongoing; can't say too much about it yet as it's still a subject of patent application. Will talk about it when I can!

Thanks for your comment.... regarding slew-rates, yes they will have a bearing on the reproduction of very high frequencies, but not a lot; a modest rate of say 5V/uS will have little effect on the low level presence of 100KHz, but an op-amp experiencing transient shut-down is something to worry about!

That's asking yet another set of questions; I would wonder about the economics of using 32bit ADCs,why not get the same effect with 24bit and a simple (!) cheap mic amp? But still the biggest problem we face is at the other end of the system, the conversion of electrical energy into physical sounds.

@@tedfletcher7334I agree, I actually like the sound older mic pre have - a sonic footprint if you will - transparency is over-rated, sterile, boring. I make good use of my Alice 828 Mk3 pre's even though I have much fancier ones to choose from. Any news on the next available batch of P82s? I missed the original discounted order window by about an hour! Grrr! Keep up the good work - always nice to see you're still active and condolences for your recent loss.

@@LondonSteveLee Thanks for your kind comments, will email you re P82 units..... I do have a couple completed.

Pls drop me an email.

I can only partially agree with 'fazerider9287', I think that the convolutions of the outer ear have only a small effect on perception, a much larger effect is the positioning of the ears and the exact distance between them (HRTF). I firmly believe that loudspeakers (or should I say 'transducers') will be able to provide convincing realism based on object-based sound reproduction and not necessarily under anechoic conditions.

Just working on a new video about mic amps..... and then very soon the long awaited PYE compressor!

@@tedfletcher7334 Cool to hear this! :) 💪

It's the same layout, the same mic amp and output stage but with a redesigned compressor and enhancer, but basically it's the same and works just as beautifully!

The Alice 505s use OEP1200 transformers.

Glad you enjoyed it!

​@@tedfletcher7334 Did you not notice the flaming? It sounds like you had the original playing at the same time as the output from the EX but with a large buffer size. Makes it impossible to hear what is going on. Shame, as I am familiar with the original p38 and would have like to have heard the difference.

'Distorted' is an emotive word; yes, it's 'distorted' in that it has been altered, first by the microphone and mic amp, then by the compressor, then by the A/D converter, then by the video editing process, then by processing in the RUclips transmission system, so like all other videos it could be said to be 'distorted', but is it clean and interesting and does not make you reach for the volume control to hear it? My purpose in designing the 588 was to come up with a compressor that is simple and quick to use, is not expensive and improves clarity. In the video the compressor is used quite hard, mainly so that the dynamic effects can be heard.... and I hope appreciated.

@@tedfletcher7334 I understand your points and appreciate your work. Also would love to get my hands on affordable stereo version. But am I the only that hear too much clipping (dostortion) in your recordings? Or is the clarity that zooms in the sound of it?

Nearly all of Ted's videos are thin scratchy and fizzy sounding - I suspect it's something to do with his room and recording techniques rather than his gear, which is excellent.

@@LondonSteveLee Maybe I've got a scratchy fizzy voice!

@@tedfletcher7334 Tee hee! Who knows? - but don't stop making your fabulous products!

It's fractionally below 6dB/8ve with a soft turnover at about 500Hz.

@@tedfletcher7334 Thanks so much for the reply, that's very helpful! I'm purchasing a used one and I've got my eye on a couple of your other products too!

Hi, I have one too, what do you love most about it?

@@vandsvb mainly I feel it is different compressor to what I have I feel it sounds big but clear

Thanks Joel, I really appreciate your comments.

The AT5040 is certainly a good mic, used carefully in a good acoustic environment it's equal to the best, however, it does have some phase issues; the directional 'shape' is unusual and needs some care in the way it's used.

I seldom get irritated by comments, but there are exceptions! My designs are NEVER compromises! My 538 compressor is an example of my take on what an opto compressor should sound like. There are different sounds from different compressor types and they might suit different programme material but there are no 'better' opto compressors than this one, or my P38 or the early JoeMeek units.

@@tedfletcher7334 I don´t know why you get "irritated", and I don´t know why you think I suggest this device is "a compromise". As you say, this compressor may be "an example of your take", on what YOU think an opto compressor shoud sound like. Of course, there are millions of people who may think this is the best opto compressor in the world. Many others probably don´t. But there´s no need to get irritated just because of this!!!. I´m just an audio technician, I don´t really know what there´s inside this devices, just have an idea of what they do, and how to use them. But believe me: I KNOW WHAT I LIKE, and I´m not arguing about whether this is a masterpiece of engineering, which I´m sure It may be, or just another compressor in the market. I think you take my comments very personally. In fact, if you read my comment, all I was saying was that I need a buss compressor, and the sales engineer suggested me to take a look at this 538 model, and I have found the Tegeler better suiting my needs, delivering a more spacious sound, more low end (of course, Tegeler includes a Pultec EQ inside.... unfair comparison), and it´s clear that these products are different. In the end, I agree that this 538 offers a very good compromise between price and quality, and I don´t find this nothing to be offended. Someone could find an LA-2A better sounding, for whatever reason, because in this world of sound creation, normally, THERE´S NO ABSOLUTE TRUTH. Technical specifications may vary, but people may prefer some kind of character, coloration, over the other. Some people like the Yamaha NS10. I detest them, I´m better with my Neumann´s. And some people could think that 4k$ for the Urei is worth it. (I personally don´t). But that´s what I mean, this 538 offers a really good compressor for a reasonable price, that´s what my comment was all about. Mr Fletcher: my dad (who passed away this february) was the most inteligent person I have ever known. He could build an engine with any spare parts he could find in a drawer, in a morning. And something I learnt from him was not to be offended by anyone´s comments against one´s potentials or capabilities. My daughter herself has inherited my dad´s intelligence (it looks like she has this kind of brain that only one in 10.000 people have for mathematical and logical reasoning). And she has learnt to act pretty much the same. Some kids at school laugh at her for having fun calculating the distance between the sun and Proxima Centauri (in kilometers, of course, long live the metric system!) . She knows that, even when comments have a bad intention, it´s always a better option not to take them personally. Most people in this life don´t behave like they would like to, but simply, as good as they can, taking in consideration their background and circumstances. So, Mr Fletcher, please, don´t get irritated; don´t feel offended, there´s no reason, and no need. Please, excuse my messy english, and have my admiration for your work, from Spain.

Hi Rodrigo, and thanks for your extended reply to my 'irritation'..... and ,by the way, your English is fine. Keep an eye open for my new P82 EQ that I'm working on now; it's a mastering EQ with hard-wire by-pass, 5-band with a 'superhigh' band to give some 'fairy-dust'. I'm not really irritated...... as Joe Meek used to say, 'if it sounds right, it IS right!'

I'm sorry it's confusing! Originally, I designed the 538 as a stereo compressor to work from a single connector strip. That's possible using aux in and out on the Midas and Fredenstein frames, but in the last few days I had a number of requests like yours, engineers who wanted the compressor but have different frames, so I have designed a mod so that the compressor engages with two edge connectors using standard in and out connections. This modified version (TFPRO 538 V5) is now available and will be ready for delivery 28th July. Orders now possible on the TFPRO website or direct to me.

@@tedfletcher7334 fantastic news Ted, that's very much appreciated. Cheers mate!