Buffalo DAC (ESS Sabre 9008) - Page 206

vitalica · 11:43 AM

We finished with Buffalo II Dual-mono variant CDPRO2m I2S.
Connections we made after as it is in the picture.
But I signal distortions ...
Stereo version I tried (one DAC) but everything is distorted.
I haven't use Volumite , we used a Aleph P1,7 as preamplifier.
I tried SPIDF version and everything is OK, but I have problems with I2S: (: (

If using Volimite, must remove both chips?
I mean, one of Buffalo PCB (Left) and another from Buffalo PCB (Right)?

Please help me very much

Thanks!

RichLund · 3rd September 2010, 10:59 PM

I know it's a bit late to be talking about the version 1 Buffalo but I finally got mine up and running... it's stunning. Best digital sound I've heard.

I picked the DAC and a placid up second hand recently and have slowly been accumulating the necessary kit.

I have two placid's powering the Buffalo and a Bipolar Placid powering the IVY 3. Very nice. I have a 18V transformer on the IVY which is making the Bipolar placid very hot, so I will look for a 15V to be safe.

After running it for a couple of days I immediately carried out the VREF CCS mod and love the improvement.

I would like to try the VREF mod on a chinese DAC which needs 5V. So do I increase the value of R3? At present I have a 10K trimmer there for the Buffalo module, should this be increased to 20K trimmer to get 5V? At the moment the trimmer maxes out at 3.5V with 6.6V input from the Placid.

I presume providing enough headroom for the CCS circuit isn't an issue for 5V.

Thank you Russ and Brian. Keep up the good work.

LeonvB · 4th September 2010, 06:32 AM

Vitalica,

1. Yes, remove both firmware chips
2. Did you receive the new firmware from Brian? The old one will not work properly for the right channel.
3. I had the same problem, try stereo mode and switch the IVY modules between the DACs. With me it turned out the opamps weren't soldered correctly to the PCB on one IVY (propably transport damage), but it's a pain in the ... to get that right after building it. I eventually ordered a new module, still waiting for it.

vitalica · 8th September 2010, 02:08 PM

Quote:

Originally Posted by LeonvB

Vitalica,

1. Yes, remove both firmware chips
2. Did you receive the new firmware from Brian? The old one will not work properly for the right channel.
3. I had the same problem, try stereo mode and switch the IVY modules between the DACs. With me it turned out the opamps weren't soldered correctly to the PCB on one IVY (propably transport damage), but it's a pain in the ... to get that right after building it. I eventually ordered a new module, still waiting for it.

Thanks LeonvB

I asked Brain to send me a new chip , but received no response from him.
I received a message that was sent a package to me with a new I / V Legato. I hope it and chip in it ...
Now listen dual - with Aleph 1.7 mono.
Sound is great!

Best regards!

LeonvB · 8th September 2010, 08:35 PM

Hope you're having more luck than I have: I did get a response, but no chip in the bag. It's way better to have it the other way around

And I'm still having problems with the SQ in dual mono, maybe I should go for SPDIF also instead of I2S.

vitalica · 9th September 2010, 08:21 AM

Quote:

Originally Posted by LeonvB

Hope you're having more luck than I have: I did get a response, but no chip in the bag. It's way better to have it the other way around

And I'm still having problems with the SQ in dual mono, maybe I should go for SPDIF also instead of I2S.

I go on the variant: CDPRO2M - I2S- Metronome-I2S-Dual-mono, and sounds very good.
Image hosting, free photo sharing & video sharing at Photobucket
But necessarily leads to CDPRO TO Metronome must be very short! (To me I'm 3cm)
Unfortunately volumes dual mono version does not work because the chip is not good: (: (

Regards!

Russ White · 9th September 2010, 11:07 AM

Here is something you folks with volumite or any other I2C controller for the Buffalo(or Buffalo II etc).

You can never connect two devices with the same address to one single bus master(controller). You must either give both devices different addresses, or use two separate controllers as bus masters.

I am sure Brian will get the firmware out to you folks that need it. Please be patient with us. Brian has been swamped.

Cheers!
Russ

rjbaldwin · 9th September 2010, 01:12 PM

Russ, on a slightly different remote control tack, can I use a simple 10k linear motorised pot in place of the current 5k unmotorised one in the Volumite and use this as a simple remote volume control?

I appreciate it is not a proper remote using I2C or will your I2C remote control stuff be imminent? If so I'll wait out for that?

Best wishes,
Russ

Russ White · 9th September 2010, 01:15 PM

Quote:

Originally Posted by rjbaldwin

Russ, on a slightly different remote control tack, can I use a simple 10k linear motorised pot in place of the current 5k unmotorised one in the Volumite and use this as a simple remote volume control?

Yes you can.

rjbaldwin · 9th September 2010, 01:18 PM

Thanks Russ, so no news on the I2C front then - I fancied the LCD screen:-(

9th September 2010, 11:07 AM	#2057
Russ White diyAudio Member Join Date: Jan 2005 Location: Nashville, TN, USA	Here is something you folks with volumite or any other I2C controller for the Buffalo(or Buffalo II etc). You can never connect two devices with the same address to one single bus master(controller). You must either give both devices different addresses, or use two separate controllers as bus masters. I am sure Brian will get the firmware out to you folks that need it. Please be patient with us. Brian has been swamped. Cheers! Russ __________________ Less pulp more juice Twisted Pear Audio.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
My ESS Sabre Buffalo DAC	Algar_emi	Digital Line Level	10	5th March 2009 01:19 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

3rd September 2010, 10:59 PM	#2052
RichLund diyAudio Member Join Date: Jan 2009 Location: Shropshire, UK	I know it's a bit late to be talking about the version 1 Buffalo but I finally got mine up and running... it's stunning. Best digital sound I've heard. I picked the DAC and a placid up second hand recently and have slowly been accumulating the necessary kit. I have two placid's powering the Buffalo and a Bipolar Placid powering the IVY 3. Very nice. I have a 18V transformer on the IVY which is making the Bipolar placid very hot, so I will look for a 15V to be safe. After running it for a couple of days I immediately carried out the VREF CCS mod and love the improvement. I would like to try the VREF mod on a chinese DAC which needs 5V. So do I increase the value of R3? At present I have a 10K trimmer there for the Buffalo module, should this be increased to 20K trimmer to get 5V? At the moment the trimmer maxes out at 3.5V with 6.6V input from the Placid. I presume providing enough headroom for the CCS circuit isn't an issue for 5V. Thank you Russ and Brian. Keep up the good work.

4th September 2010, 06:32 AM	#2053
LeonvB diyAudio Member Join Date: May 2010 Location: Netherlands	Vitalica, 1. Yes, remove both firmware chips 2. Did you receive the new firmware from Brian? The old one will not work properly for the right channel. 3. I had the same problem, try stereo mode and switch the IVY modules between the DACs. With me it turned out the opamps weren't soldered correctly to the PCB on one IVY (propably transport damage), but it's a pain in the ... to get that right after building it. I eventually ordered a new module, still waiting for it.

8th September 2010, 08:35 PM	#2055
LeonvB diyAudio Member Join Date: May 2010 Location: Netherlands	Hope you're having more luck than I have: I did get a response, but no chip in the bag. It's way better to have it the other way around And I'm still having problems with the SQ in dual mono, maybe I should go for SPDIF also instead of I2S.

9th September 2010, 01:12 PM	#2058
rjbaldwin diyAudio Member Join Date: Mar 2007	Russ, on a slightly different remote control tack, can I use a simple 10k linear motorised pot in place of the current 5k unmotorised one in the Volumite and use this as a simple remote volume control? I appreciate it is not a proper remote using I2C or will your I2C remote control stuff be imminent? If so I'll wait out for that? Best wishes, Russ

9th September 2010, 01:18 PM	#2060
rjbaldwin diyAudio Member Join Date: Mar 2007	Thanks Russ, so no news on the I2C front then - I fancied the LCD screen:-(

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)