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Messages - Tranquility Bass

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1
Audioweaver / Re: Can't connect AWE to Ultimate Preamp
« on: May 18, 2021, 01:22:35 AM »
Hello

You need to use Version 6.17.06 of Audioweaver as the latter version do not work with the Preamp,

Please PM me for the quick start guide for info on how to download.

Regards
David

2
Feature Requests / Re: headphone
« on: May 18, 2021, 01:19:29 AM »
Is that a headphone output for normal stereo output or do you want to select which channels you want to listen to ??

3
Firmware Updates / Firmware Update: 210513-1335
« on: May 13, 2021, 04:16:04 AM »
Firmware Version: 210513-1335
Firmware release date: 13-May-2021
Tested On: UP2, UPP
Description: This update addresses differences in Apple remote controls as there appears to be two types of remote with slightly different codes and some wouldn't work depending on which one you purchased which wasn't clear as they both looked identical. This has now been fixed in this release so the UP should now respond to both types.

We have also changed the "Setup S/PDIF Output" menu and have removed the loop through function and added a sample rate output selection because some external DAC's cannot run at the native DSP sample rate of 192kHz nor can the Toslink output of the preamp run at more than 96kHz.

References:

How to upload firmware updates to the Ultimate Preamplifier

How to implement a stereo 5-way crossover with the Ultimate-Preamplifier

This firmware download link below:






4
Please refer to the following documentation for full instructions on how to upload firmware updates to the Ultimate Preamplifier

How to upload firmware updates to the Ultimate Preamplifier

5
Wiki and Q&A / Re: Room correction with Dirac live on UPP
« on: May 05, 2021, 01:27:28 AM »
Dirac live latest version: 3.0.14 but I have no idea if the usb works with UPP

From what I understand Dirac Live seems to be an app that runs on a PC that communicates with the hardware that is actually running Dirac and processing the audio info. It then displays all of the frequency responses and correction responses on the PC display. What you need is the actual audio processing part of it that runs on a PC. Not sure if it exists yet but they told me once they were looking into it but their OEM customers were a higher priority.

cheers
david

6
Wiki and Q&A / Re: Room correction with Dirac live on UPP
« on: May 04, 2021, 11:16:10 AM »
Hi David,
if you let me know which driver needs to be selected on Dirac to interface with UPP, I try to ask

If you are the using loop-through mode on the UPP then it needs to support the 8-ch Xmos USB device although not all 8 input/output channels are used in loop-through mode as it is only 2-input and 2-output used for this application.

More info on the driver here https://www.diyinhk.com/shop/driverdatasheetmanual/109-diyinhk-usb-audio-driver-full-version-and-signed-.html

regards
david


7
Wiki and Q&A / Re: Using Jriver with the Ultimate-Preamplifier
« on: May 04, 2021, 11:05:17 AM »
Note that the Preamp has 6 dB lower gain when playing back DSD files so bear this in mind before comparing Preamp and Direct DAC modes ;)

Example of DSD 64 file through the Preamp



Example of DSD 64 file Direct to the DAC



Example of DSD 128 file through the Preamp



A maximum of DSD256 can be handle in both Preamp and Direct DAC modes ;)






8
Wiki and Q&A / Using Jriver with the Ultimate-Preamplifier
« on: May 04, 2021, 10:38:32 AM »
Jriver provides direct hardware support for the 2-channel Amanero USB adaptor used in the Ultimate Preamplifier 2/+ so some setup in Jriver is necessary to take full advantage of the Ultimate-Preamplifier. Here is the setup I used in Jriver version 27. Earlier versions of Jriver will be very similar.

Step 1. Make sure you have installed the drivers for the Amanero device on your PC and make sure your PC is connected to the USB audio 2-Channel input on the back of the preamp. Select "Combo384 ASIO" from the Audio Device menu as below:-



Step 2. Set Device settings as follows



Step 3. Since the preamp can only handle a maximum of 192 kHz sample rate you can down convert the higher formats using integer fraction sampling rates as below:-



Step 4. Both the 2-ch Preamp and 2-ch Direct DAC modes on the Preamp use hardware DSD (not DoP) so set this as follows:-




9
For more information on this topic please download the following pdf document:-

Not all Balanced Inputs are created equally or How not to design a power amplifier !

10
Wiki and Q&A / DC Coupling And Offset Voltage Issues
« on: May 03, 2021, 05:31:45 AM »
For more information on this topic please download the following pdf document:-

  DC Coupling And Offset Voltage Issues

11
For more information on this topic please download the following pdf document:-

  Eliminating Intersample overs in the Ultimate-Preamplifier using Intersample Over Guards

12
For more information on this topic please download the following pdf document:-

  How to upload firmware updates to the Ultimate-Preamplifier/url]

13
For more information on this topic please download the following pdf document:-

How to connect a turntable to the Ultimate-Preamplifier

14
For more information on this topic please download the following pdf document:-

  Uploading an Audioweaver Design to the Ultimate-Preamplifier

15
Wiki and Q&A / Re: Room correction with Dirac live on UPP
« on: May 02, 2021, 12:32:57 PM »
I'm still waiting on reply from Dirac for a PC version of their room correction software. They told me they were going to have a version that runs on a PC but I haven't seen it yet. Seems they are more invested in protecting their OEM customers.

Failing that there are other packages like Audiolense and Accourate which work with convolutioon filters which is probably similar to Dirac.

https://juicehifi.com/

https://www.audiovero.de/en/acourate.php

Because these run on a PC you would need the UPP and use the 8-channel USB interface connected to a PC running the convolution filter and switch on the loop-through mode in the preamp.

regards
david

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