Can someone give me informs about Cyrus amplifiers sound quality

destroyer X · 19th July 2006, 09:07 PM

I am interested to produce one schematic that i have, and i want to know the audio details, if someone had listened to it or had some informs about reviews.

This Cyrus is made in England.

And people told me that its sound is nice, also that is clear, during the audition that it has losses in details, some sounds that usually disappeared when you reproduce the unit,...

The friend told me that despite the impressive sonics, there are some small compression, that you can find some deepness effect or spatial effect, and the informs i had explained me that the biggest suspection about the cause may be inside the extra feedback line it uses...that the correction is producing some problems.

Despite the source of informs that came from a source i trust, an Eastern European friend, i will be glad to listen some other ideas about it....that will confirm, reinforce , or dennie the subjective informs i had.

here is the link:

http://www.cyrusaudio.com/product-list.asp?m=1

regards,

Carlos

anatech · 20th July 2006, 02:10 AM

Hi Carlos,
Cyrus is well designed. I think they sound pretty good and would not say they sound compressed unless you are getting into slight clipping. Very modern construction, in England using mostly surface mount components. PCB quality is very high. Never seen a bad solder joint.

If you like this amp, check out the new Cyrus Power. More advanced design.

Are there any dealers in your area where you can hear one?

-Chris

destroyer X · 20th July 2006, 05:35 AM

is from the eighties... a very old design.

The one was the schematic i could find.

No, there`s no representative here, and i do not know people that has this unit in their home.

But your informs are something very good too, and maybe your reference may be some new model.

I will continue to search, i am very curious to listen some amplifiers, so i use to construct them fast to listen...well, they are never the same as the factory unit, but at least, the circuit would be the same.

regards,

Carlos

anatech · 20th July 2006, 12:42 PM

Hi Carlos,
The new Cyrus Power uses an input transistor that is a complementary pair, tightly matched in a surface mount package. You may be able to find a leaded version out there.

I have heard them all from the Mission 772 (not remarkable at all) to the vs series. There has been a steady improvement in sound all the way up. They do have some sharp designers on staff. I was lucky enough to meet them at the factory one day. They use AP 2's in the lab and AP 1's in the service department. Nothing goes into production without passing through the listening room. It has to be at least as good as the previous model to pass. These guys are serious about sound quality.

-Chris

traderbam · 20th July 2006, 01:11 PM

Hi Carlos,
My ears denote the Cyrus electronics as good "mid-fi". Well built, stylish, value for money. Not leading edge sound quality...a full-on sound. The designers are missing a few tricks if they are really trying to make high-end sounding circuits. Instead, I think they are trying to make pleasing mid-fi and are doing a good job of it.

richie00boy · 20th July 2006, 01:13 PM

Carlos, if you mean the late 80s early 90s vintage Cyrus 1 or 2 commonly sold with matching PSX then you have been misinformed about the circuit. There is no 'extra feedback line'.

I find the sound very detailed and quite forward, the bass is superb with both depth and punch - sounds very fast and pleasing.

anatech · 20th July 2006, 01:25 PM

Hi traderbam,
Have you heard the new Power? I am interested in your impressions.

It makes use of diamond buffer technology (old as that is). It's a completely new design direction.

Yes it's mid - fi in the strictest sense of the definition, but it it pushing the performance in the up direction.

-Chris

destroyer X · 20th July 2006, 02:14 PM

You are sharpening my curiosity related this circuit.

I think the informs are good enougth to make me move.

thank you,

regards,

Carlos

traderbam · 20th July 2006, 02:28 PM

No Chris, i haven't. If I ever hear it I'll let you know what I think.

anatech · 20th July 2006, 02:33 PM

Thanks traderbam.

I think it's worth it to have a listen if you are in the area where a dealer is.

richie00boy, how about you?

-Chris

20th July 2006, 05:35 AM	#3
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	Thank you Anatech, i will continue my search for a more modern schematic, as mine is from the eighties... a very old design. The one was the schematic i could find. No, there`s no representative here, and i do not know people that has this unit in their home. But your informs are something very good too, and maybe your reference may be some new model. I will continue to search, i am very curious to listen some amplifiers, so i use to construct them fast to listen...well, they are never the same as the factory unit, but at least, the circuit would be the same. regards, Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline!.. when not work first time, then becomes a nice challenge...and we usually overcome the trouble... and we feel very well to be mastering the machine.

20th July 2006, 01:13 PM	#6
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	Carlos, if you mean the late 80s early 90s vintage Cyrus 1 or 2 commonly sold with matching PSX then you have been misinformed about the circuit. There is no 'extra feedback line'. I find the sound very detailed and quite forward, the bass is superb with both depth and punch - sounds very fast and pleasing. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

20th July 2006, 02:14 PM	#8
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	Anatech, traderbahn and Richie00boy, thank you by those valuable informs You are sharpening my curiosity related this circuit. I think the informs are good enougth to make me move. thank you, regards, Carlos __________________ Try to build an amplifier folks ... it is pure adrenaline!.. when not work first time, then becomes a nice challenge...and we usually overcome the trouble... and we feel very well to be mastering the machine.

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20th July 2006, 02:10 AM	#2
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi Carlos, Cyrus is well designed. I think they sound pretty good and would not say they sound compressed unless you are getting into slight clipping. Very modern construction, in England using mostly surface mount components. PCB quality is very high. Never seen a bad solder joint. If you like this amp, check out the new Cyrus Power. More advanced design. Are there any dealers in your area where you can hear one? -Chris

20th July 2006, 12:42 PM	#4
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi Carlos, The new Cyrus Power uses an input transistor that is a complementary pair, tightly matched in a surface mount package. You may be able to find a leaded version out there. I have heard them all from the Mission 772 (not remarkable at all) to the vs series. There has been a steady improvement in sound all the way up. They do have some sharp designers on staff. I was lucky enough to meet them at the factory one day. They use AP 2's in the lab and AP 1's in the service department. Nothing goes into production without passing through the listening room. It has to be at least as good as the previous model to pass. These guys are serious about sound quality. -Chris

20th July 2006, 01:11 PM	#5
traderbam diyAudio Member Join Date: Jan 2002 Location: Earth	Hi Carlos, My ears denote the Cyrus electronics as good "mid-fi". Well built, stylish, value for money. Not leading edge sound quality...a full-on sound. The designers are missing a few tricks if they are really trying to make high-end sounding circuits. Instead, I think they are trying to make pleasing mid-fi and are doing a good job of it.

20th July 2006, 01:25 PM	#7
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi traderbam, Have you heard the new Power? I am interested in your impressions. It makes use of diamond buffer technology (old as that is). It's a completely new design direction. Yes it's mid - fi in the strictest sense of the definition, but it it pushing the performance in the up direction. -Chris

20th July 2006, 02:28 PM	#9
traderbam diyAudio Member Join Date: Jan 2002 Location: Earth	No Chris, i haven't. If I ever hear it I'll let you know what I think.

20th July 2006, 02:33 PM	#10
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Thanks traderbam. I think it's worth it to have a listen if you are in the area where a dealer is. richie00boy, how about you? -Chris

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