Riya DAC Small Review

[mixedgas]

Since PJ has confirmed the problem,

While I would not normally suggest to a beginner to solder a USB cable, the signal strengths are strong, shielding is not that critical, and very SHORT, on the order of 6 mm or so, splices with heat shrink tubing to insulate them are not going to impair function that much. I have done it with no issues, however I have been splicing cable since 1982 or so...

its 4 wires, and the shield is not a critical part of the circuit, red to red, green to green, white to white, black to black and loosely join the shields with a short lenth of stranded wire.

Remember you need a outer layer of heat shrink over the cable before you splice, and electrical tape/heat shrink inside the spliced section,


It has to be soldered, just twisting the wires will not work at this data rate.

Splice it to a spare cable and get it over with!

But give RIYA time to make good on this first.


Steve

[ARGLaser]

Maybe some of you guys wont have this problem,

I havn't had the issue you are describing, my only problem with the DAC is that it crashes my software and freezes on the last frame it was at when I turn on my fog machine.

[norty303]

While I would not normally suggest to a beginner to solder a USB cable, the signal strengths are strong, shielding is not that critical, and very SHORT, on the order of 6 mm or so, splices with heat shrink tubing to insulate them are not going to impair function that much. I have done it with no issues, however I have been splicing cable since 1982 or so...

its 4 wires, and the shield is not a critical part of the circuit, red to red, green to green, white to white, black to black and loosely join the shields with a short lenth of stranded wire.

Remember you need a outer layer of heat shrink over the cable before you splice, and electrical tape/heat shrink inside the spliced section,


It has to be soldered, just twisting the wires will not work at this data rate.

Splice it to a spare cable and get it over with!

You've not been following the electrical/electronics/engineering capabilities of BQX then?

[Things]

I havn't had the issue you are describing, my only problem with the DAC is that it crashes my software and freezes on the last frame it was at when I turn on my fog machine.

That's not a problem with the DAC, I have many USB devices that do that exact thing. It's an issue with crappy EMI filtering on the fog machine.

[riyalasers]

Official message from RIYA:
Some our customers informed us that they have problems with RIYA Multibus Lite controllers last time: not stable start of work... disconnecting and registering as "not recognized device"...
We with our customers have done analyse of problem.
Our verdict: unfortunately several USB connectors (cables), which we used in last series of RIYA Multibus Lite controllers, had not good quality.
For customers, who have similar problems: very sorry... write me please PM or send please message to info@riyalasers.com; we will make for you repair controllers.
For future customers: we changed type of cables for this model of controllers (look photo please).
We with our customers tested two tens of controllers with new cable type on several computers within two last weeks; we do not see troubles now.
We hope do not make similar problems for our customers in future.
Thank for all for support.

RIYA team

IMG_1433.JPG

[norty303]

^^ This is a good resolution.

[sugeek]

I have had no issues with my Riya multi-bus micro, and I have had it around 2 years. In fact it is being used by a member right now to play some great shows using LSX. Ihor makes good stuff and has a decent price, I am glad it is available or I would have never had a working DAC.

-Adam

[Stoney3K]

Isn't it possible to replace the 'pig-tail' style cable with just a female USB (type B) inside the box? Or would that make the DAC more expensive?

[riyalasers]

Stoney,
thanks you for you opinion,
it will not more expensive, but:
we analysed setting of USB-B connector directly to PC board within developing.
Arguments against this idea:
- we wanted to make VERY compact device. As you can see, we have done it: I have not seen controllers from other manufacturers in similar size. For us was very complicate to set on this little PCboard all these electronic components; is used two-side mounting of components. We have not free space, and is impossible to set so big component as USB-B connector on PCboard (his size is 17% of PCboard ) (look photo please)
IMG_1443.JPG
- in really live: if we will have connected to little box to one side thick and hard DB-25 (ILDA) cable, and to second side USB (male-female) - it will have low reliability: USB connection can be easily damaged.
Therefore we used 'pig-tail' style cable.
I will repeat: we changed type of cable, and should be excluded this problem in future.

[Zoof]

Hey Borg, your review is fair but I think your verdict in bold is a little harsh when glancing over the review. Basically you advise people something based on the experience of one. Given the niche market and the potential damage such a statment can make to a business it would be wise to include EDIT 2 in a milder verdic since Ihor is addressing the issue and working with the community to get things resolved (and keep his well working product at a very reasonable price!!). Simply based on my experience, also the experience of one, I would say GO FOR IT ;-) since I had a good experience with both Ihor and this product.

[dnar]

I use the USB ports on my laptop A LOT at work, a lot of our products are USB connected. The USB ports on the laptop have worn to the point that in normal use the USB connection can be dropped by just a small amount of movement of the connector.

I have one USB port that I don't use in my normal day (its actually a combo socket providing USB and eSata on an Thinkpad) so I always use that for my main DB3 DAC connection as the socket is not worn. I only have 1 other good USB port, it has a tiny Bluetooth/Mouse dongle fitted on a semi-permanent basis.

[stupidsexyflanders]

Hi just to let you know i have one of the improved USB connector Riya lite USB . It works perfectly with no connection issues . I also bought it in the UK from Laser electronics as Ihor has brought some stock into the uk .

Aaron