Ayon Audio CD-5 versus CD-5s

Hi Leicachamp, I asked Dan this very question previously, and this was his response -
"Hi, first of all, it is true that the input impedance of our amps is 15K at 50Hz. Our peamps range from 100ohm-300ohn-600ohm and I have driven our amps WELL with all of our preamps. A 300ohm Zout is NOT problem."
The reality is, the KWA-150 has a relatively difficult input impedance of 13K ohms which presents a difficult load to a preamp with high output impedance. The CD-5/5s has a moderately high output impedance of 300 ohms. In regard to your noise issues, this could be due to a number of things, but starting with the most obvious (cables); reviews have indicated that balanced out is more neutral in sound, whilst single ended sounds a bit warmer but at the cost of a higher noise floor. Conceptually, I prefer balanced cables and always use them when possible. I would rule line noise out as the Ayon is a pure power source. How many hours does your player have? The CD-5/5s needs 250hrs to fully bloom. Are you using stock tubes, or rolled tubes? The stock tubes should be perfect as Ayon use the best tube testing equipment in the world & only send out players with tubes tested for all 5 specs. With the KWA-150 I recommend setting the gain to 'low' and make sure the rca/xlr toggle is set correctly. Hope that helps.

Melbguy1, thank for all your advise and info, I also own cd-5s and very happy with its sound and the pre-amplifier section in this unit is very good. I sold my ARC ref-3 pre-amp after buying ayon cd-5s. Melbguy1 I got yu advise and changed tubes to NOS 6h30p-dr. Parts connections sells 1986 for $80-90 a pair and they can do matching quad. Very worthy upgrade. Thank you.
I have one question so. My amplifier 3 month old Krell 302E) has input impendence of 100k ohm thru RCA and 200k ohm thru XLR. Using the XLR connection from Ayon to Krell, every time pressing play button on Ayon (starting or re-starting CD) I hear very audible metallic “ping” sound coming form a speaker’s tweeters. Also the sound becomes noisy on loudly recorded cds. Again noise coming from tweeters. . This is not happening using RCA. Is that attributed to a high gain krell is getting using XLR outs?
In both cases I drive krell directly from ayon. The low or high gain switch on ayon does not affect that “ping” sound. Any input will be highly appreciated. Thank you.

Hi Melbguy,

A quick word of advice would eb appreciated, I have had a CD1s for 18 months or so alongside an Origin Live TT which I think is fab. I recently upgraded my pre/power to the excellent Lamm L2/M1.2 reference, as a result my vinyl replay sounds even better but the 'gap' with the CD has got bigger. I am therefore considering a 'final' (haha) upgrade to my CD and thinking of the CD5s, however I am paying for the in built pre amp which will be redundant and do you feel it will give me the substantial upgrade I am looking for. I am a long way from an Ayon dealer so a demo is not possible, any advice greatfully received including if I should look at any other CD's in this range but use my Lamm pre eg. AR CD08
Thanks Mike

Hi denon

I think the prices you quoted from parts connections are 4 years old. The current price is about $210 a pair.

Melb

Did you ever had success with the ayon/kwa150 combo?

Thanks

Melb, I bought those tubes a 2 month ago with 20% discount. It cost me about $360 (extra charge for matched quad) with shipping from Canada. I sudjest you contact them and see what they can do.