Giles M, Sheffield, England
In the last few issues of Hi>Fi+ magazine, Alan Sircom has been running a series of analysis pieces, basically discussing systems architecture issues. He went right back to the very basics with this work, but also asked readers to join in with the experiments and feed back the results. Well Alan did get reader's support with this, and Giles M from Sheffield wrote a very extensive letter back to Alan. Alan was so impressed with Giles' work that he published just that one letter in the letters section. He also thought Giles deserved something by way of thanks for making such effort, so asked if Vertex could donate a completely unannounced prize, one which would allow Giles to do more experimenting too. So we sent him a Silver Jaya mains filter.
Below is an email from Giles, sent to us, after receiving his prize.
Dear Vertex
What a remarkable device the Silver Jaya is! While my expectations had been raised by what I had read, the reality easily exceeded them. Rather than reiterate what far more competent people have observed, having experienced the effect, perhaps it suffices to say that within 15 minutes I'd brought the speakers a foot further into the room and increased the toe-in by about 5 degrees. Subsequently I've raised the speakers by 6". Having read round about the impact of Vertex AQ components, I'd expected that some revision to system set up might be necessary, and had reviewed the speaker manual in advance. While the expected benefits to Bass and HF extension where as anticipated, as things stood the mid range had suddenly become very lumpy, but repositioning the speakers more or less cured this, thought there remains an element of thickness to the upper bass / lower mid, which I hope will be resoled in due course. Your observations as to how energy gets re-routed round the system made fascinating reading, and were readily demonstrated. But it's the improvements to the accuracy of the dynamic envelope, particularly on the leading edges, that seem to lead to the most significant improvements in the reality of instrumental timbre, which don't seem to be simply down to a reduced noise floor, though this is clearly apparent. The reduction in intermodulation effects must be a significant component. However I've run out of maths by which to try and understand it.
What I should say is that while the experience listening to CD was incredible, when I moved on to vinyl it was nigh on indescribable. My rather 'front end first' biased purchase of my first system, lead by a Sondek 20 years ago, has always been the standard to beat in my system. At present I rather feel like the character in Captain Corelli's Mandolin, after he's had the pea removed from his ear which has been there since childhood. The improvement in the sound nailed me to my seat. Admittedly I was nearly in tears to start with! The increase in resolution was such that the surface noise was so detailed, and accompanied with a strange subsonic phenomenon, that I thought something was seriously amiss. However, I quickly realised the latter arose from a slight warp on the record and once the signal appeared, it became very apparent that the effect delivered to CD line level signals is significantly increased with respect to the amplitude of the phono signals, with equally significant improvements in the sound quality!
I must admit that I'd not considered Vertex AQ equipment in the context of my own system, despite the reviews, perceiving such products as biased towards the high-end before you could appreciate their effect. However, this experience has been one of those 'throw the book away' moments, where everything you thought you understood gets turned upside down. I'm now firmly of the opinion that even relatively 'basic' systems would benefit enormously from the Silver Jaya and anyone who hasn't tried one doesn't know what they're missing. I'm now looking forward to adding further Vertex AQ components to my system.
Once again many, many thanks for your generosity.
Giles