Official PSA Triax Thread - Page 118 - AVS Forum | Home Theater Discussions And Reviews
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post #3511 of 3564 Old 11-29-2014, 07:16 PM
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Originally Posted by raynist View Post
Thanks!

Do you use the minidsp with your triax?

Was there any elaboration on how the .9 can work? I already have that one and it is easier to work with the RCA connections. I will get the balanced if needed though. I don't want to hook the unbalanced .9v output unit up if it isn't going to work and mess up my current settings/calibration.

Thanks
Ray, I honestly would wait for a definitive answer if I were you, that's a big deal and having to do over everything you already did. Sorry for my dumb answer earlier I wasn't considering the miniDSP in the chain only the 5 volt preout driving the Triax, sorry.
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post #3512 of 3564 Old 11-29-2014, 07:24 PM
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Quote:
Originally Posted by raynist View Post
Thanks!

Do you use the minidsp with your triax?

Was there any elaboration on how the .9 can work? I already have that one and it is easier to work with the RCA connections. I will get the balanced if needed though. I don't want to hook the unbalanced .9v output unit up if it isn't going to work and mess up my current settings/calibration.

Thanks
No, I don't use a miniDSP. I remember reading about concerns clipping the miniDSP's input and limiting headroom, so I never tried one.

I did try an Antimode, but frankly it didn't make much difference and a few times I did see the input clipping light flicker, so I sold it.

Even without any EQ, my single Triax sounds great. Tom says my measurements look good (others here said not so good when I posted my measurements).

Tom didn't elaborate about the .9v miniDSP setting. I just figured he meant the gain adjustment on the Triax could accommodate it.
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post #3513 of 3564 Old 11-29-2014, 07:41 PM
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Thanks.

I am currently using Audyssey XT32 to EQ everything. The minidsp is for a house curve.

Yeah, I will wait for a definitive answer before joining it up. I have 2 of the triax's on each output of the onkyo. Two of them are no where near each other so I have the output of the onkyo going into an SVS Sub-EQ and then to each triax. The other two triaxs are very near each other so they are eq'd as one.

Having to run the SVS sub EQ first (8-32 positions) then Audyssey (8 positions) and then doing the Audyssey Sub Distance Tweak and then EQ tweaks on my Inukes takes probably 2-3 hours when all said and done. I would hate to do all of that only find out that I need the balanced version.
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post #3514 of 3564 Old 12-10-2014, 10:40 AM
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Did anyone ever get a definitive answer concerning the .9v/2.0v MiniDSP preferred output voltage with the Triax/T-18?
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post #3515 of 3564 Old 12-10-2014, 01:50 PM
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Originally Posted by Alan P View Post
Did anyone ever get a definitive answer concerning the .9v/2.0v MiniDSP preferred output voltage with the Triax/T-18?
Tom and Jim were testing it last week. They found that it did limit output on the triax in their office. They are working on a solution.
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post #3516 of 3564 Old 12-10-2014, 02:00 PM
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Yeah, I just heard from Tom via email and he said they are "testing out a couple new DSP programs that change the gain sensitivity on the T-18 right now".
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post #3517 of 3564 Old 12-10-2014, 02:16 PM
 
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Woild this be with any minidsp sub combination? (The limiting of output?)
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post #3518 of 3564 Old 12-10-2014, 02:19 PM
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Originally Posted by Brian Fineberg View Post
Woild this be with any minidsp sub combination? (The limiting of output?)
I don't think so. I think it is specific to the Speakerpower amps.
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post #3519 of 3564 Old 12-10-2014, 02:38 PM
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I had issues with my XS15s + MiniDSP.
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post #3520 of 3564 Old 12-10-2014, 02:40 PM
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Quote:
Originally Posted by raynist View Post
Tom and Jim were testing it last week. They found that it did limit output on the triax in their office. They are working on a solution.
Do we know which miniDSP unit they are testing? I see on their web site that they sell the 2x4 but it is the non-balanced version. I just ordered the 2x4 balanced and was curious since I believe it has better output voltage.

Well, here is how miniDSP describes it for the 2x4 balanced:

  • Maximum input level <1% THD Input sensitivity configurable by jumpers from 0.9Vrms(7dBu in balanced mode) to 2Vrms(14dBu in Balanced mode)
  • Maximum output level <1% THD 2Vrms (5.6Vpp) referenced to ground, i.e. 14dBu in balanced mode

Here is the info for the 2x4 non-balanced version:

  • Maximum input level <1% THD 0.9Vrms (Reva) or 2Vrms (Revb)
  • Maximum level, unbalanced, <1% THD 0.9Vrms (2.5Vpp)

So again I would curious which model they are using for testing as it seems to make a difference.
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post #3521 of 3564 Old 12-10-2014, 02:48 PM
 
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Confirmed by Tom no issue with xs30's and minidsp
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post #3522 of 3564 Old 12-10-2014, 03:23 PM
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Originally Posted by McLuvin View Post
Do we know which miniDSP unit they are testing? I see on their web site that they sell the 2x4 but it is the non-balanced version. I just ordered the 2x4 balanced and was curious since I believe it has better output voltage.

Well, here is how miniDSP describes it for the 2x4 balanced:

  • Maximum input level <1% THD Input sensitivity configurable by jumpers from 0.9Vrms(7dBu in balanced mode) to 2Vrms(14dBu in Balanced mode)
  • Maximum output level <1% THD 2Vrms (5.6Vpp) referenced to ground, i.e. 14dBu in balanced mode
It
Here is the info for the 2x4 non-balanced version:

  • Maximum input level <1% THD 0.9Vrms (Reva) or 2Vrms (Revb)
  • Maximum level, unbalanced, <1% THD 0.9Vrms (2.5Vpp)

So again I would curious which model they are using for testing as it seems to make a difference.
It was the unbalanced. I don't think there will be any issues with the balanced.
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post #3523 of 3564 Old 12-12-2014, 09:20 AM
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T-18s begin shipping again today. Couple pictures.

We do productions runs of six...

1) 24,000 watts programmed, tested and waiting.

2) Eighteen 18" drivers bench checked, waiting

Tracking info will be going out between 4 and 6pm(when RL Carriers pops in).

Thanks to all for all the patience shown during our back order situation.

Tom V.
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post #3524 of 3564 Old 12-12-2014, 09:45 AM
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Originally Posted by Tom Vodhanel View Post
T-18s begin shipping again today. Couple pictures.

We do productions runs of six...

1) 24,000 watts programmed, tested and waiting.

2) Eighteen 18" drivers bench checked, waiting

Tracking info will be going out between 4 and 6pm(when RL Carriers pops in).

Thanks to all for all the patience shown during our back order situation.

Tom V.
Power Sound Audio

Tom - was just curious... how are the Triax's wired up and what is the impedance on the amp? For example, is the amp seeing a 4ohm load and putting out 4000 watts? And if so, how are the subs wired to achieve the impedance target? I ask because of the odd number of drivers you use. If that is something you prefer not to divulge then I would understand.
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post #3525 of 3564 Old 12-12-2014, 10:06 AM
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Quote:
Originally Posted by McLuvin View Post
Tom - was just curious... how are the Triax's wired up and what is the impedance on the amp? For example, is the amp seeing a 4ohm load and putting out 4000 watts? And if so, how are the subs wired to achieve the impedance target? I ask because of the odd number of drivers you use. If that is something you prefer not to divulge then I would understand.
6 coils total. Each driver is wired in series between the dual coils and then all three loads(drivers) are paralleled together into the amp. Final load is a bit over 2ohm.


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post #3526 of 3564 Old 12-12-2014, 10:44 AM
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Originally Posted by Tom Vodhanel View Post
6 coils total. Each driver is wired in series between the dual coils and then all three loads(drivers) are paralleled together into the amp. Final load is a bit over 2ohm.


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Ok, so it sounds like each voice coil is 4ohm; each driver is then wired in parallel to get 8ohm, and then all 3 drivers series together to get around 2.67 ohms. Sound about right? Appreciate the info.
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post #3527 of 3564 Old 12-12-2014, 11:39 AM
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Quote:
Originally Posted by Tom Vodhanel View Post
T-18s begin shipping again today. Couple pictures.

We do productions runs of six...

1) 24,000 watts programmed, tested and waiting.

2) Eighteen 18" drivers bench checked, waiting

Tracking info will be going out between 4 and 6pm(when RL Carriers pops in).

Thanks to all for all the patience shown during our back order situation.

Tom V.
Power Sound Audio

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post #3528 of 3564 Old 12-16-2014, 07:05 AM
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Hey guys,

The tracking for my T-18s (R+L Carriers) says "an estimated due date of 12/17/14".

Does that mean I will definitely be getting them tomorrow, or does that mean that they will be calling me tomorrow to schedule delivery and it may be a day or two before I get 'em??
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post #3529 of 3564 Old 12-16-2014, 07:08 AM
 
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That means they will get it in their warehouse on 12/17 and call you to setup a delivery time.
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post #3530 of 3564 Old 12-16-2014, 07:17 AM
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Thanks Brian....but does that mean they will schedule delivery tomorrow, or a day or two later...or is there no way to know??

Just trying to plan so I can take the day off from work.
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post #3531 of 3564 Old 12-16-2014, 07:40 AM
 
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Call them and bug them. That's what I did with each of my xs30's haha.

In fact I am not 100% I would have gotten them the next day if I hadn't called first. It would have been a few days until they called.
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post #3532 of 3564 Old 12-16-2014, 07:49 AM
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I'll do that Brian. Gonna wait until it says they actually left Minneapolis (arrived there 11pm last night and haven't moved) before I call though.
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post #3533 of 3564 Old 12-17-2014, 03:51 PM
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I'll do that Brian. Gonna wait until it says they actually left Minneapolis (arrived there 11pm last night and haven't moved) before I call though.

Alan, I believe you will have them by Friday
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post #3534 of 3564 Old 12-17-2014, 03:57 PM
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Yeah, there gonna be here tomorrow (Thursday) between 9a-noon.
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post #3535 of 3564 Old 12-17-2014, 05:24 PM
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Yeah, there gonna be here tomorrow (Thursday) between 9a-noon.

Alan, I knew that but I wanted you to sweat for an hour or so, I've only had 11 subs delivered and picked up by FedEx, ENJOY and post your impressions
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post #3536 of 3564 Old 12-28-2014, 07:49 AM
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My apologies if I missed it, but is there any further info on the issue of using the MiniDSP with the Triax? I know it was mention Tom was doing sone further testing, but I don't remember any post about the conclusion of those tests.
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post #3537 of 3564 Old 03-01-2015, 12:21 PM
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Wondering if anyone wants to trade a black Triax for my cordovan cherry straight up?

It is about to go behind an AT screen never to be seen again. It is too pretty for that.

Located in Pittsburgh.
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post #3538 of 3564 Old 03-01-2015, 12:48 PM
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Wondering if anyone wants to trade a black Triax for my cordovan cherry straight up?

It is about to go behind an AT screen never to be seen again. It is too pretty for that.

Located in Pittsburgh.
So true!

I wish I had the budget to buy it from you. It would complement my single Cordovan Cherry Triax quite nicely!
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post #3539 of 3564 Old 03-02-2015, 11:39 AM
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Quote:
Originally Posted by raynist View Post
Wondering if anyone wants to trade a black Triax for my cordovan cherry straight up?

It is about to go behind an AT screen never to be seen again. It is too pretty for that.

Located in Pittsburgh.
Nice Gesture, but I would hang on to it. Think resale!!
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post #3540 of 3564 Old 05-14-2015, 01:17 AM
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Wow guess I've been out of the loop awhile.. didn't even realize the Triax had been discontinued. Haven't had a lot of time recently and think I've only put 100 hours on my Triax. Turned it on for the first time in a few months and looks like the amp's dead. According to the manual:

230VAC Model (Long flash - Short flash)
4-1 = Fault from gate PCB while amp was working ok. May reset with power cycle

So I will call Tom in a few days and see what it might be. Pity, I get in moods to want to rock the foundation now and then...

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