DesertDome made a trip to Des Moines today and we made some upgrades, ran lots of measurements and made some tweaks.
Made the following changes:
1. Upgraded the video card to a MSI GTX 970. Was a 760.
2. Installed a Hauppauge Colossus 2 card to replace the Colossus 1 (hoping to gain some stability for the television functionality)
3. Created a calibrated zone for my back row. The calibration up to this point had been focused on the money seat in the front row. Now if I want to
to sit in the back row I can play the movie in a "zone" that's been calibrated to the back row. Took lots of measurements and more filters to create in
Audiolense to get some headroom back but sounds really good in the back row.
4. Replaced the SSL AlphaLink with a MOTU 24ao. The MOTU has a really slick UI.
Two big benefits of this unit for me (more below):
A. Much quieter than the SSL. I can only hear very faint static out of the JTR's - ear within 4" of the tweeter. A huge plus with HE speakers
B. Device is networked and with an iOS app you can change your trim levels on the go. Want a little more bass or midbass Carp?...one little finger swipe
and you have it.
Other benefits of the MOTU:
1. 32 bit DAC chips for higher quality volume control (probably not really noticeable in real life, but . . .)
2. Higher SNR on outputs.
3. The MOTU DAC’s are flat to DC. No rolloff.
4. Ability to route inputs to JRiver for processing
5. Ability to route Audiolense through JRiver for measurements. This allows one to do various bass mixing in JRiver that can’t be done in Audiolense, while
still using Audiolense for final EQ.
also allows Audiolense to take “after” measurements of its own EQ with the convolution filter loaded in JRiver.
7. Can be turned on/off with no pops in the speakers
8. Simpler installation. Just connect a USB cable. If hardware goes out, it is easier to replace.
9. Has a multi-client driver like the SSL so you can still use outputs for different zones (deck, theater, etc.)
10. Active support thread at gearslutz.com
11. Drivers are updated much more frequently (latest is from March, 2015) and there is support for Windows 8
12. Trim levels for channels can be done in the mixer software. You can use their free iPad app to control the trims. For example, you could make on the fly
adjustments to the bass level if we left headroom for that.