AMplifer A/B Blind testing- Time to hear for myself!

[tRidiot]

Damn I wish I could make it to this kind of thing. Sounds pretty complicated to set up.

I'm wondering about the switching panels. Do you have those built already? I'd like to see some pics of how you are doing it. Maybe you explained it well enough, and I'm just too hung-over/dehydrated/overworked to grasp it. :/

Thanks, and good luck! Sounds like it's going to be a great time.

-Danny

[captainobvious]

Well in its current state, it's simply a panel with a bunch of banana jacks on it. The backs of the banana jacks have wires connected that go out to the L and R channel of each amp. The speakers are then connected via a pair of speaker wires with banana plugs into the FRONT of the banana jacks for whichever amp you want to listen to. The RCA panel simply has all of the L and all of the R rca jacks tied in together (soldered) to share the same signal between them. So essentially, all amps are receiving the signal at all times from the source and their outputs are all run to the banana jack panel and ready at all times. You just "select" which one plays by which set of jacks you plug your speaker wires into.

Now the way it WILL work soon enough, is that I have a pair of switchers coming that will enable me to simply push a button to select the amplifier that is playing as opposed to unplugging and plugging back in the banana plugs on a panel. Much easier and more accurate for demoing

[DGR932]

Steve,
That's an awesome looking setup you have there. I have been wondering for a while what your test setup would look like. keep up the good work buddy.

[West]

How is this going? Any update ?

[captainobvious]

Thanks Dustin!

Testing is great so far from my end. All amps (except the Zuki) appear to be working properly and the test rig is running smoothly. I'm going to troubleshoot the Zuki either tonight or tomorrow. Its flashing protect with nothing but power connected which is odd...


I have a few items coming in, including a Zed Leviathan amp and some fine cables from mr West to do some sidebar testing on. My only concern at this point is attendance. I know a lot of people are interested in the results, but I dont have many commits for the actual event...I find it a bit surprising since this is a somewhat rare opportunity to experience this yourself and also to see and demo some great amps all in one place.

Hopefully I'll get some more confirms. I certainly don't want to pony up the $250 I'll have to pay for a hotel meeting room to host this if noone is showing up...

[captainobvious]

Reminder for those that are/want to attend:

Saturday, February 8th at 11:00am.
Courtyard by Marriot
600 Campus Drive, Collegeville Pennsylvania 19426

Ask for the Martin Murphy room at the front desk, we are labeled as the DIYMA Audio Group.

Come casual and relaxed. This should be a laid back and fun atmosphere

-Steve


**EDIT**

We will have several demo/listening sessions focusing on different aspects of testing. Here is the loose "itinerary":

11:15 Introduction and Meet/Greet
11:30 System and component inspection
11:45 Seating and assign Testers random "tester number"
12:00 First session- Non Blind Evaluations of the amplifiers
12:30 Break
12:45 Blind Evaluation of the amplifiers
1:15 Break
1:30 Blind AX testing of 5 amplifiers
?? Closing remarks and exit poll

I may order up some pizza for a quick lunch break for us.

[BigAl205]

Too bad this is 13 hours away from me. Hope you guys have fun.

[captainobvious]

Thanks Al

[BigAl205]

[captainobvious]

Updates coming shortly my friend