Can anyone out there tell me what I need to do to re configure a Cyrus 3 amp that was set up for use with aPSXR back to standalone use?
I am sure I can easily do this, on the old ones you used to remove some fuses for PSX operation. How does one do the change on the Cyrus 3?
TIA
Guillaume
I am sure I can easily do this, on the old ones you used to remove some fuses for PSX operation. How does one do the change on the Cyrus 3?
TIA
Guillaume
reconfiguring cyrus 3
Hi Guillaume,
Changing the cyrus back to standalone operation is easy, there are four lug connectors next to the toroid. reverse the positions of the yellow and blue wires, then reverse red and grey.
voila! put the lid back on.
good luck
khush
Hi Guillaume,
Changing the cyrus back to standalone operation is easy, there are four lug connectors next to the toroid. reverse the positions of the yellow and blue wires, then reverse red and grey.
voila! put the lid back on.
good luck
khush
I am gonna try it now once I have logged off and packed away the laptop. Thanks a lot, I really appreciate it.
Regards
Guillaume
Regards
Guillaume
Tubenut,
Why do you want to ditch the PSX-R? The sound quality should be much better with it. I have been looking for the circuit of the PSX-R for my DAD3Q if you have it!
Why do you want to ditch the PSX-R? The sound quality should be much better with it. I have been looking for the circuit of the PSX-R for my DAD3Q if you have it!
Re: reconfiguring cyrus 3
First of all, sorry for the bump of the very old thread.
Does this procedure also work for the Cyrus IIIi ?
...or all Cyrus 3+ integrated amplifiers?
....and isn't there at least two specs/versions of the PSX-R ?
For which spec of the PSX-R is this modification-procedure sufficient?
khush said:
First of all, sorry for the bump of the very old thread.
Does this procedure also work for the Cyrus IIIi ?
...or all Cyrus 3+ integrated amplifiers?
....and isn't there at least two specs/versions of the PSX-R ?
For which spec of the PSX-R is this modification-procedure sufficient?
Re: Re: reconfiguring cyrus 3
How to modify your Cyrus 3 / 3i /7/ power : http://www.rdhworld.co.uk/punbb/viewtopic.php?id=3847
How to modify your Cyrus 3 / 3i /7/ power : http://www.rdhworld.co.uk/punbb/viewtopic.php?id=3847
Thx Sonusthree.
However, after doing this mod does the amp work with all of the different specs of the PSX-R?
However, after doing this mod does the amp work with all of the different specs of the PSX-R?
This MAY be useful info:
The original PSX is a fixed +-40V and +-18V supply for the Cyrus 2 and PCM2 and a funny bass amplifier thingy.
Please don't take my word for it but I believe that the earlier PSX-r is fixed voltage and the later model has clever circuitry to detect which voltage it should supply. Seems like this is the only one to use with the Cyrus3 & 3i.
Here's a link to the later model (variable) which doesn't seem to be compatible with the Cyrus 3 or 3i: http://www.cyrusaudio.com/product.asp?ProductID=15&text=spec
Compatibility
Integrated amplifiers - Cyrus 8, Cyrus 8vs, Cyrus 8vs2, Cyrus 7, Cyrus IIIi, Cyrus III
Tuners - FMX
Pre-amplifiers - Cyrus aCA7, aCA7.5, Phono X, Pre, Pre Xvs, Pre vs2, DACXP
Power amplifiers - Cyrus Power, X-Power, SmartPower, SmartPower Plus, 8 Power
CD players - Cyrus Discmaster, Cyrus Dacmaster, dAD3, dAD3Q, dAD3Q24, dAD7, dAD7Q, CD7, CD8, CD8x, CDXt
Surround Decoders - Cyrus AV master
DVD players - Cyrus DVD7, DVD8
regards,
Martin. 🙂
The original PSX is a fixed +-40V and +-18V supply for the Cyrus 2 and PCM2 and a funny bass amplifier thingy.
Please don't take my word for it but I believe that the earlier PSX-r is fixed voltage and the later model has clever circuitry to detect which voltage it should supply. Seems like this is the only one to use with the Cyrus3 & 3i.
Here's a link to the later model (variable) which doesn't seem to be compatible with the Cyrus 3 or 3i: http://www.cyrusaudio.com/product.asp?ProductID=15&text=spec
Compatibility
Integrated amplifiers - Cyrus 8, Cyrus 8vs, Cyrus 8vs2, Cyrus 7, Cyrus IIIi, Cyrus III
Tuners - FMX
Pre-amplifiers - Cyrus aCA7, aCA7.5, Phono X, Pre, Pre Xvs, Pre vs2, DACXP
Power amplifiers - Cyrus Power, X-Power, SmartPower, SmartPower Plus, 8 Power
CD players - Cyrus Discmaster, Cyrus Dacmaster, dAD3, dAD3Q, dAD3Q24, dAD7, dAD7Q, CD7, CD8, CD8x, CDXt
Surround Decoders - Cyrus AV master
DVD players - Cyrus DVD7, DVD8
regards,
Martin. 🙂
Hi,
I have heard that there are two versions of the PSXr as well as the original PSX.
I don't know what is different between the two r versions, but I believe both have voltage detection, auto power off and adjustable output.
I have heard that there are two versions of the PSXr as well as the original PSX.
I don't know what is different between the two r versions, but I believe both have voltage detection, auto power off and adjustable output.
Isn't it a bit weird that Cyrus didn't name them so one can clearly distinguish which is which?
Like PSX-R and PSX-R2 or similar....
Like PSX-R and PSX-R2 or similar....
It's also strange that they list all of their (past and present) products on their site but only one PSX R.
I knew I'd read it somewhere before, here is the holy grail of PSXr information ........ Gentleman ...... The Cyrus power supply FAQ ...... drum roll please ..........
http://www.cyrusaudio.com/content.asp?ContentID=34
http://www.cyrusaudio.com/content.asp?ContentID=34
Sonusthree said:
Thank you very much.
I remember reading that FAQ some time ago also.
Though, how do you know if a PSX-R is non-variable (old spec) or variable (new spec)? By decoding the serialno.?
Sellers on eBay (or similar) usually don't have a clue of what spec they have....
quaddo1 said:
From Cyrus website: "The 'non-variable' PSX-R was built in the serial number range up to and including HBU00421 and HBE01351. All other PSX-R products are of the 'variable' type."
Yes, check the serial numbers it seems.
Also worth noting:The newer 'variable' PSXR works with ALL the models (except Cyrus 1 & 2) including Cyrus 3 & 3i but the old 'non-variable' will only work with Cyrus 3, Cyrus 3i, Cyrus 7, AV-Master, Discmaster, Dacmaster, dAD 7, and dAD 3.
I would say that the later model should be worth more.
It connects to more equipment and the capacitors are newer.
Regards,
Martin🙂
Many thanks
Thanks for the advice on reverting a Cyrus 3 to work without a PSX-R - I've got a noise fault on the Cyrus 3 and PSX-R combo I've got and locating it in one box or the other has to be step one. I have seen oblique references to PSX-R owners "frying tonight", but that is as close as I've been to finding any clues online about where the noise might be originating. Affects all source inputs equally, with the character of the noise not varying as you switch quickly between inputs, although it does vary in frequency and volume over time during warm-up. My guess is that the large capacitors in the PSX-R (being the power supply driving the output) are aged, but if anyone has knowledge/experience of a similar fault, please share!
Thanks for the advice on reverting a Cyrus 3 to work without a PSX-R - I've got a noise fault on the Cyrus 3 and PSX-R combo I've got and locating it in one box or the other has to be step one. I have seen oblique references to PSX-R owners "frying tonight", but that is as close as I've been to finding any clues online about where the noise might be originating. Affects all source inputs equally, with the character of the noise not varying as you switch quickly between inputs, although it does vary in frequency and volume over time during warm-up. My guess is that the large capacitors in the PSX-R (being the power supply driving the output) are aged, but if anyone has knowledge/experience of a similar fault, please share!
Snakes in my Cyrus 3 ... Hisssss
I have just purchased a Cyrus 3. When the volume is very low, I hear faint electronic pink noise hissing out from both speakers. The noise is present with or without the PSX-R power supply. The hiss does not alter if you increase or decrease the volume, however, the hiss is drowned out by music playing and also tends to decrease in volume after 10 minutes of the unit being powered on - but as soon as it is switched off and back on again, it returns. The hiss is audible regardless of which function/input is selected, CD, TP, AUX, etc. Even the mute function does not quieten the noise. I have tested the unit in a totally different environment away from possible electrical interference and the problem continues to exist. The only way I can eliminate the hissing noise is by using the Cyrus 3 as a preamp (or switching the power off). I think this will be a fix-up for my techie. Anyone previously experienced this with a Cyrus 3?
I have just purchased a Cyrus 3. When the volume is very low, I hear faint electronic pink noise hissing out from both speakers. The noise is present with or without the PSX-R power supply. The hiss does not alter if you increase or decrease the volume, however, the hiss is drowned out by music playing and also tends to decrease in volume after 10 minutes of the unit being powered on - but as soon as it is switched off and back on again, it returns. The hiss is audible regardless of which function/input is selected, CD, TP, AUX, etc. Even the mute function does not quieten the noise. I have tested the unit in a totally different environment away from possible electrical interference and the problem continues to exist. The only way I can eliminate the hissing noise is by using the Cyrus 3 as a preamp (or switching the power off). I think this will be a fix-up for my techie. Anyone previously experienced this with a Cyrus 3?
No first hand experience but from what I've read elswhere I think that a lot of it is surface mount components which would be hard to work with for most DIY'ers.
Yes, I agree, surface mount components would be hard to work with. The amp is now with my tech guy. He had a quick look at it but was unfamiliar with the problem. He was very surprised it had such a fault and asked me to put my feelers out for known causes of this fault. He had nothing but praise for the build quality and reputation of these (and earlier) Cyrus amps and so I do not mind spending good money to fix this baby.
Noise on Cyrus 3 output with PSX R
Hi fullcircle
Just a quick note on your problem with the amp and PSX R combo, most of which you will have sussed already! Your PSX R is probably fine, as the noise persists without it. The pre-amp stages of your amp are fine, as the noise isn't present when you use it as a pre-amp. As the noise is on both channels, that leads me to suspect a power supply problem of some kind because most of the post pre-amp circuit components for the left and right channels are separate, apart from the power supply. Also, the noise disappears when the amp has been on for a while - has your audio guy tried squirting freezing spray on various components to try and provoke the fault? This is a bona fide fault finding technique where noise is concerned and suitable specialist sprays are available from the usual electronics suppliers.
Myself, I'm leaving the PSX R alone for a while as it was, in my case, the source of the problem. Meantime, the sound of an unfaulted Cyrus 3 without PSX R is just so much better than the degraded sound I'd gradually become accustomed to.
Hi fullcircle
Just a quick note on your problem with the amp and PSX R combo, most of which you will have sussed already! Your PSX R is probably fine, as the noise persists without it. The pre-amp stages of your amp are fine, as the noise isn't present when you use it as a pre-amp. As the noise is on both channels, that leads me to suspect a power supply problem of some kind because most of the post pre-amp circuit components for the left and right channels are separate, apart from the power supply. Also, the noise disappears when the amp has been on for a while - has your audio guy tried squirting freezing spray on various components to try and provoke the fault? This is a bona fide fault finding technique where noise is concerned and suitable specialist sprays are available from the usual electronics suppliers.
Myself, I'm leaving the PSX R alone for a while as it was, in my case, the source of the problem. Meantime, the sound of an unfaulted Cyrus 3 without PSX R is just so much better than the degraded sound I'd gradually become accustomed to.
Well, my techie has not yet got around to working on the Cyrus 3 as yet but I presume that part of his fault-finding procedure will be freezing various components. I suspect that the fault could be power supply problem ... could be serious.
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