GB for RTX6001 Audio Analyzer with AK5394A and AK4490

[nania]

I'm eager to see this analyzer in use. Has anyone in NYC taken delivery?

 

[cwtim01]

May I ask which smps dc-dc converter that is?

//

It's a LT3471 followed by TPS7A4701.

 

[kevinkr]

I'm eager to see this analyzer in use. Has anyone in NYC taken delivery?

If you are not successful locating someone local I'm in Boston and you would be welcome to stop by if you are ever in the neighborhood.

 

[nania]

kevinkr
I much appreciate the invitation. Even though this is the season to re-experience the best clam chowder I ever had, I would prefer someone a little closer

 

[nyt]

I'm about 2 hours out of nyc on long island

 

[dudaindc]

I missed the GB ... still sobbing

I made the same mistake too...

I would be interested in participating if a second group buy happens...

How much do these sell for (at the regular price)?

Cheers and Happy Holidays!

 

[AndrewT]

The two modification PCBs arrived in this morning's post.
They are tiny.
Now to open up and get access to add the PCBs.
I have already printed off the mod .pdf (post512).

 

[JensH]

Andrew,

Let me me know if you have any issues. Feedback on the progress/improvements are also welcome

 

[AndrewT]

Might not get that done before Xmas,
I have another amp just put together after a small mod last night and needs testing.
It has to be delivered to the friend by tomorrow so that she has music on Xmas day.
And I've got some buying and cooking to do.

 

[Microfast]

Are the mods already been shipped to all the customers?

 

[kevinkr]

kevinkr
I much appreciate the invitation. Even though this is the season to re-experience the best clam chowder I ever had, I would prefer someone a little closer

It is a bit of a long ride from NYC..

 

[etlasr]

Try 20dBV/10dBV @-15dBFS output, the THD can go further down (0.00003% in my case, -130dB)

Unfortunately I'm still struggling to get better than-120dB THD on my unit but looking at the spectrum (1KHz fundamental, balanced in and out) I'm not entirely surprised as I seem to be up against a first harmonic that is at best down by about -122dB (for 0dB out to 0dB in with -10dB attenuation) plus other lesser higher harmonics. Running out of ways to hit or better the '-124 dB typical for 1v balanced' specification. Recognise that 'typical' can mean 'less than' but given others seem to get to the spec figure with ease I will keep experimenting.

 

[cwtim01]

>for 0dB out to 0dB in with -10dB attenuation
For 0dBV out and 0dBV in setting, try -15dBFS, -10dBFS is unlikely to give optimal THD.

 

[etlasr]

>for 0dB out to 0dB in with -10dB attenuation
For 0dBV out and 0dBV in setting, try -15dBFS, -10dBFS is unlikely to give optimal THD.

Thanks for the suggestion but if anything it makes it slightly worse. First harmonic still dominant. I'm not searching for what may be an obscure combination of settings for an 'optimal THD' just seeing if I can get to consistently lower than -120dB (ideally the -124dB typical or better) which is stated as a 1v loop back test. May try a different SW package (using Audiotester currently) to see what I get but that seems like clutching at straws.

 

[lemon]

Happy New Year to all of you.
I think that the RTX has sent to the first 46 of list, is there any schedule time with the another 39 of list?

 

[JensH]

49 have been shipped by now.
The next order confirmations will be sent on Monday, January 8.

 

[lemon]

Thanks for the reply, JensH.
The next order confirmation is going to send to all the rest or a smaller group?

 

[JensH]

Probably the next 10 or so (out of the 33 left). We don't want to end up in a situation where people have paid, but we are not able to deliver within the promised time frame.

 

[agdr]

Massively impressed with the service from RTX....

Due to being crazy-busy through December I finally was able to get my RTX6001 shipped back DHL for the mod this Tuesday the 2nd (1/2/18).

Would you believe it has already been received by RTX, modified, reshipped, and will arrive Monday the 8th? Wow. Service like that deserves a special mention. A huge thanks to Jens and the team for designing the RTX6001 and performing the follow-up service this efficiently! A+++

 

[Ghianni]

@ agdr : Would you inform us about the shipping costs?