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Kyocera A-710 sounds fantastic!

narkleptic

narkleptic

AK Subscriber
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Well, I got the 220v upconverter in the mail yesterday, so I could finally hook up my now-repaired (thanks Audio Specialist!) Kyocera A-710 up to my Thiel 1.5 speakers and Denon DP-47F turntable.

It sounds fantastic. I was previously driving the speakers with a Musical Fidelity X-AS100, rated at 200 wpc into 4ohms through the preamp of a Kyocera R-461, but I suspect the A-710, despite being rated at 140 wpc into 4ohms is seriously under-rated.

I think on the Vintage Knob, it says the Kyo could drive well over 200 watts.

The Musical Fidelity is supposedly a "high current" design, but the big Kyocera pumps out twice the current (60 amps peak!). It also weighs a freakin ton. Looking at current amp specs, you have to lay out a LOT of cash to get that kind of power delivery these days.

So, in a nutshell, I am extremely pleased with my new Kyocera seperates (Also running a T-910 tuner).

If anybody knows where to find the elusive 900-series cd player, drop me a line.

The Musical Fi
 
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I really like Kyocera stereos, can we see some pics? I bet that thing does sound awesome, the low end on these things rumbles the whole house. I too am searching for the 900 series CD player. I had a DA-510CX and loved it but had to sell due to money problems at the time. It was the sweetest sounding player I've ever owned or heard. I would take just about any Kyo CD player now, if I could find one.....
 
Yes! pics please! I've grown very partial to my Kyocera R-661, I wish I could track down some matching componets... especially the CD player!
 
I had a stack of kyocera components that I sold recently that included the R-851 receiver, DA 610 cd player, and PL-710 turntable. I sold them to help faciliate the purchase of the TOTL Kyocera components. That receiver sounded excellent, though it didn't have the low-end authority of the integrated amp.

Just picked up a DA-710cx cd player, which is a halfway decent cosmetic match. Don't have it under my roof yet, as it is in transit. I was looking for this unit or a 510, because AFAIK, they were the only models produced with a digital out.

I figure the player should sound pretty good, but modern tech has improved in the DAC dept., so I may use it as a transport.

and yes, pics will be forthcoming!
 
Love the A-710

My next project is to find a full 900 series setup. It should only take 5 or so years. LOL

I love the A-710 as well...Great looking unit.


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ooh! an RC-101 remote unit! And all second generation (remote capable components!).

nice.
These components are about the only '80s era audio gear that appeals to me, excluding some turntables...
 
narkleptic said:
Well, I got the 220v upconverter in the mail yesterday, so I could finally hook up my now-repaired (thanks Audio Specialist!) Kyocera A-710 up to my Thiel 1.5 speakers and Denon DP-47F turntable.

It sounds fantastic. I was previously driving the speakers with a Musical Fidelity X-AS100, rated at 200 wpc into 4ohms through the preamp of a Kyocera R-461, but I suspect the A-710, despite being rated at 140 wpc into 4ohms is seriously under-rated.

I think on the Vintage Knob, it says the Kyo could drive well over 200 watts.

The Musical Fidelity is supposedly a "high current" design, but the big Kyocera pumps out twice the current (60 amps peak!). It also weighs a freakin ton. Looking at current amp specs, you have to lay out a LOT of cash to get that kind of power delivery these days.

So, in a nutshell, I am extremely pleased with my new Kyocera seperates (Also running a T-910 tuner).

If anybody knows where to find the elusive 900-series cd player, drop me a line.

The Musical Fi
Click to expand...

I wrote some of the material on The Vintage Knob about the A710.
It is a remarkable amp. Unfortunately, it has 'the glue problem' but apart from that (if it's taken care of) it should be very reliable - and it sounds really good too.
It will indeed drive 200WPC into a well-behaved 4 ohm load. It uses 2 pairs of 15A Toshiba bipolars per channel on a CORRECTLY dimensioned heatsink - something which not many amps can claim! - and has a huge power transformer (however, be aware that there were differences in the size of the transformer between different markets).
I've had mine pump half rated power (which produces near worst case heat) into 8 ohms for hours. It does get very hot but still within limits. Be warned that most contemporary amplifiers may fail under the same conditions - most modern ones WILL fail and many catastrophically. It will not drive 100W into 4 ohms for that long but for actual music use it should be just fine - again, most similairly rated amps will fail under these conditions.
In any case, I am sorry I sold mine, but such were the times and situations then.
 
Thanks for the info! A few weeks after I bought mine there was a completely recapped example on the 'Bay, which had also had the glue issue taken care of. At the time I thought it was pricey, as I got mine way cheaper, but paying for the repair and transformer narrowed the gap considerably...

I'm curious if you know how many of these Kyocera ended up selling? Mine has a really low serial #, but then again, it was also a 220v version.
 
narkleptic said:
Thanks for the info! A few weeks after I bought mine there was a completely recapped example on the 'Bay, which had also had the glue issue taken care of. At the time I thought it was pricey, as I got mine way cheaper, but paying for the repair and transformer narrowed the gap considerably...

I'm curious if you know how many of these Kyocera ended up selling? Mine has a really low serial #, but then again, it was also a 220v version.
Click to expand...

What is this "glue issue" please ?
 
These Kyocera units also use the "FCL" modules. The A-710 has them for the phono stage. If these go bad you pretty much have to find another unit to scavenge from. There is a discrete circuit encased in epoxed under the plastic. I'm trying to recreate the pre-amp FCL module for a C-910 preamp for someone at the moment.

Of interest, the A-710 tone controls really aren't tone controls at. They alter the level of negative feedback in the amp circuit. Not sure if the volume control is employed in the same way here too. On the C-910 pre-amp the volume control adjusts the level of NFB.

Also, the protection relay is on the main power rails, not the speakers. The unit starts up at a low voltage, then after a short time switches to higher voltage rails. This is pretty robust - if the outputs are blown, it just "clicks" in and out and never fully powers up.
 
Do the different 910 series use different FCL modules? Or can one module be swapped for another? I just picked up a parts unit DA-910 and I'm wondering if I can use it my C-910, which needs a new module for the phono section...
 
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