No problem, both are great cards but have differing features.
post #286 of 445
3/31/10 at 4:51pm
Greetings fellow Bravura owners, need some inputs on this card as I'm a noob.
Can I connect the Bravura digital output to my audio-gd compass using the supplied cable? Will the sound from this connection be better than using usb from the pc? I'm having a AKG K702 for gaming and music listening.
Comments greatly appreciated.
You can and should use the digital output comming from your sound card!
When you are using an USB sound "card", the processing is being done by the computers CPU, even if you have a real sound card attached. When you use your compass with the USB (compass uses a PCM2707) you are actually (most likely) using the default drivers for sound output, that lack all of the benefits of your Bravura (bit matched playback, EAX effects etc.), meaning you are not using your sound card at all.
If you got the same accessories that I got with my Forte, you should have an Optical S/PDIF cable and a small transparent plastic adapter that plugs into the other end of the cable, just plug the adapter on the end of the cable that connects to your sound card and the other end to your compass and use the Bravura as the output device (and remember to unmute the digital output in the Bravura control panel/drivers).
So I bought a pair of OPA627AU from ebay from (lawrence chan aka biglawhk), and I swapped out my front channel I couldn't hear the difference. I decided to use RMAA to get some numbers to compare the OPA627AU against the stock generic opamps. The result is that there's a minute difference between the two... Anyone with a pair of 627au or 627bp want to run RMAA and share the data? I'm really curious to see some more data on this.
Btw, i'm using a pair of Audioengine A2 on my front and my sub (polk psw111) is connected to the speakers via rca cables. I can't seem to get the sub going when it's connected to the cnt/sub out from the bravura via 3.5mm to rca.
I'm attaching my test results. [DirectSound] Speakers (Auzen X-Fi Bravura 7_1) 24-bit, 48 kHz.sav
I also found some RMAA result from the japanese Auzentech website. It loosk like they ran the same test I did with the headphones port... My results are no where near these. They're along the same line as the results i posted above for my front channel.
Here is the link: http://www.auzentech.jp/site/company/a_news25.php
Well as many know what you can measure and what you can hear is usually very different. If you are running RMAA tests on a headphones output you need to load the output. Headphone outputs distortion measurments can change based on what the load is connected to it.
You cannot get the sub working unless you are in 5.1 to 7.1 mode and have the card set for Bass redirection.
Also, for what you hear is based on what you are using for your playback gear. If you are using lower grade speakers or amplifiers, chances are you are not going to hear any difference between similar sounding opamps.