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Maverick Audio DAC/Amp - Page 156

post #2326 of 2586
Quote:
Originally Posted by sizzlincok View Post

Oh, also, I can't seem to clarify the rate that the D1 accepts.

It seems that the USB only accepts 16bit/48khz.

 

However, a review on here at headfi says that over optical/coax spdif it accepts higher? Such as 24/96?

 

Yes? No? Maybe so?


16/48 for the USB. Anything else sent over USB is likely to be resampled. 24/96 is fine through optical & coax, I feed my D1 24/96 through coaxial.

 

post #2327 of 2586
Quote:
Originally Posted by _Spanky_ View Post
16/48 for the USB. Anything else sent over USB is likely to be resampled. 24/96 is fine through optical & coax, I feed my D1 24/96 through coaxial.

 

Oooo. Thanks for clarifying for me. I think I hear a difference between USB and my 24/96 coax feed, but I don't know haha.

 

Just a suggestion, maybe you should add it in the FAQ for the D1, that 24/96 won't be resampled like it will be over USB, if you use optical/coax.

 

I read that you said that it was discovered that only 16/48 was being sent to the DAC itself over USB.

What do you mean "discovered"? How?

 

I say if such is true, most likely it's the USB chip that's being used. We'll never know unless we know what USB chip the D1 uses.

post #2328 of 2586

I feel the wait till be worth it, considering the competition the D2 is coming into with all of the new competitors out there.  I am sure it is the result of much review and will result in something that deviates from the others even if slightly.  Probably the best way to go is stay with the tube-pre out, perhaps more elaborate of a design with what they learned from the A1

post #2329 of 2586
Quote:
Originally Posted by ninjikiran View Post

I feel the wait till be worth it, considering the competition the D2 is coming into with all of the new competitors out there.  I am sure it is the result of much review and will result in something that deviates from the others even if slightly.


*shakes head*

post #2330 of 2586
Quote:
Originally Posted by Lazerboy2000 View Post

I ordered the LT1364CN8#PBF and  LM4562NA/NOPB  opamps last night to try swapping them into the D1. Very excited to try them out as it'll be my first time doing opamp changes haha! Sooo now can somebody tell me where each of these opamps go? 

 

 

^^^n00b



I'm always very nervous messing with electronics. I know somebody once posted a picture of the internals of the D1, describing where to install each of the new opamps but I cannot find it. Can somebody please help tell me where to install the lm4562 and the 1364? 

post #2331 of 2586
Quote:
Originally Posted by Lazerboy2000 View Post

I'm always very nervous messing with electronics. I know somebody once posted a picture of the internals of the D1, describing where to install each of the new opamps but I cannot find it. Can somebody please help tell me where to install the lm4562 and the 1364? 

 

Um, have you read the D1 FAQ thread? Or this huge D1 thread at all?

 

There are specific SOCKETS for opamp swapping.

People have made it clear which opamp on the board affects which output of the D1, RCA outputs, or headphone output.

 

There's only TWO opamp sockets on the D1's PCB...

So I don't think you're going to screw anything up.

 

post #2332 of 2586

Is this amp a good match to AKG Q701 anyone?

post #2333 of 2586

Finally the mailman knocked on my door Friday around noon with my package from the mysterious orient.  I heard that package was full of audio karma and I had to have it for myself.  My Auzentech Forte's magic ran out about a month ago and forced me to be a common listener of the dreaded on-board sound.  My DT990's started to revolt and began to assault my ears.  I was in desperate straights.  So I heard of a little thing called 'TubeMagic' and knew it was for me.  Indeed, it is.

 

I plugged her up not expecting anything more than the Forte, it had a highly tooted DAC and HP output.  I never used the DT's out of the Forte, it couldn't drive 'em.  So I brought my AV receiver in and used it's HP out.  Had a shoot out between the Pioneer and a E9 and the Pioneer won, so I'm still using it to amp the DTs, the E9 went back.  I only very briefly tried the HP out on the D1 but its not as good as the Pioneer yet.  This thread has me nervous to try my opa209 and 1161 in the headphone out, till I get a meter.  I did swap the op amp out in the DAC section to a 827 I've had a while and it's working fine.  I have had the D1 pushing electrons since I got it, except for a brief few hours when I had to leave, about 36hrs now.  I think the SS side is broke in, I used the 827 in the Forte for a while.  I think this solid state part of the DAC is just fine.  The preouts are hot, I've had to turn down my receiver about 6% to get close to my normal listening volume. (I've got a 0db to -100db labeled pot so the math is easy.)  I've got the tube out and the ss out going to the receiver so all I have to switch the receiver's input.  One of the reasons I picked the D1 was to introduce myself to tubes and well we'll see.  So far I'm digging the ss, but I would love to have the vocals and the guitars of the tube but I like the tight bass and cleanness of the ss more than than the fat bass and admittedly more musical tube. ( I got the upgraded tube.)  But I am going to give the tube more burn in before I think a whole lot about it.  But if anyone knows of a tube that will give me the clarity of the ss output I could live with fat bass, or is it the compromise that has to be made for the 'musicalness' (disclaimer: I'm not an audiophile, I just like music, a lot!)

 

I am happy with the DAC so far, it beats any soundcard I've heard hands down, a knockout in the first round.  Glad I got this instead of the Asus card everyone's talking about.  My Beyer's are singing in my ears as I type and making me grin.  It's quite a step up from a soundcard, and it makes me feel as if these DTs have not been driven right till now.  There's just something meatier in the music now, like the DTs are finally using their diaphragm to sing instead of their throat.

 

The first time I took out the headphones to check out the receiver's sound through the new DAC, I thought I broke something.  I hit the off switch as quick as i could and I then remembered reading about the Direct button.  Wow! So I turned off the direct button and settled a notch lower than the 3 o'clock position on the volume.  Though this got rid of the clipping and static, I thought there was still something wrong, my brain could not understand what it was hearing.  I had my little speakers spread out about 8 feet because I like the wideness of the sound.  But something was wrong now, so I put the speakers on my desk about 3 feet apart and sat down in the triangle and just listened for a while.  My brain finally stopped rejecting what it heard and I realized I was hearing the widest frigging soundstage I had ever heard.  It literally shocked my brain.  I put the speakers back and man, for years all my music has been in my face, attacking me, and I have put my speakers as far apart as possible, against popular wisdom to defeat that 'in my face' sound.  The D1 was what I needed and never knew it.  Everything is there, all the dynamics, all the music, but it is now in its place, even and everywhere, not just in your face.  It just took my brain a while to figure out what it was hearing.

 

From where I am coming from, blue collar guy, baby food and ex-wives and such left little money for music.  So cheap receivers and who had the time to sit and put on headphones? so I never had any, a luxury expense at best.  But now that I'm retired, (I still have little money as you can well believe) I do have time and I think I got a good buy with this DAC.  I had no desire to use the HP out as around the holidays I plan to buy or build a dedicated headphone amp.  But i think as far as the DAC from what I've groked you have to spend twice as much to get as good and I just don't see myself spending that much or more on a DAC.  At least not while I'm courting this cowgirl of a DAC.  Now I have to go learn a little about tubes.

 

Thanks for the great thread, it has been a great service to me.

 

post #2334 of 2586

^ Just buy the tubes off Ebay. 

 

If you look real hard, you can pick up a pair of WE 396A tubes for under $40 USD.

I got 4 for under $40 a pair.

 

Then pick up some tung-sol 2c51 tubes for under $30 USD for 5, as I did.

 

I also got the Raytheon 5670, 3 tubes for under $30 USD as well.

 

And last, just picked up a lot of 10 NOS Russian 6n3p-e tubes to leave them burning in my D1 whenever I don't need the awesomeness of the better tubes.

 

All the listed tube numbers are the same tube type that the D1 accepts. They just have different model numbers.

post #2335 of 2586

@ sizzling  >  thanks and what a moniker!  Are these the only tubes that the D1 will take?  I know a little theory behind tubes, made me study 'em in the navy, but no practical knowledge.  Same with op amps, I've play around with a 714 for guitar effects but that's about it.  My real world experience is a/c or d/c motor controls, instrumentation and general troubleshooting.  We had electricians to mess with the lights and conduit and 110 stuff.  (gotta love the Union)  I did learn about DAC's with the a/c motor controls, Reliance sent me to school in Charlotte to learn 'em since they were putting in a multimillion a/c control system to run our 23 motors synced on the finishing line, (cotton mill.)

 

But I know nothing about audio, so I must learn at my advanced age.  It will be good for me.  This thread is what made me think a little more about my education, I had never heard of 'dc offset' and that it could ruin my investment in headphones.  My Auzentech Forte's analog side bit the dust with a rolled opa1611 in it, and I had been swapping op amps just to see was up with it, so now I wonder if my ignorance has destroyed a perfectly good sound card.  Time to get back in the learning saddle.

 

Rolled a opa209 in the Maverick this morning and did not expect much, as it didn't do as well as the opa827 in the Forte but it's liking the D1, at least with my little pioneer speakers.  It now sounds better than the 827, which was my favorite up till the D1.  So I put the opa827 in the hp out and will try the hp out and the analogs (normal and tube pre out) to my receiver's hp out when people start getting home from work and I have to put on my headphones.  I'll try the opa1611, my least favorite with the Forte and the LM4972 someday and report back about how I like them. 

 

Edit:

I've got to take back the opa209 thing, got carried away.  Put on Sixx: A.M. and J. Michaels vocals were kinda of harsh and I did not remember that at all, the 827's back in place and Mr. Michaels voice is once again one the best I've heard.


Edited by petercintn - 5/16/11 at 3:21pm
post #2336 of 2586

Hmm basically all 5670 tube variants as well as 2c51 will work on D1.

 

One thing to take note is that all tubes have limited lifespan and their sounds will change accordingly.

 

There are many bad tubes selling cheaply on ebay. They will work but might be far from ideal.

 

So, just to be on the side of caution when buying one for yourself =)

post #2337 of 2586

^ Yup. The tubes are like incandescent lightbulbs pretty much. 

 

That's why I bought a bunch of cheap russian tubes beucase there are SO many, to leave them in the D1 to burn. 

Use the nice tubes when I want the best quality.

 

@petercintn - I forogt about opamps. I didn't get into them because I didn't get a chance to get them yet. :(

I want the free samples from National Semiconductor! I refuse to pay for my opamps!!!

 

I'm using the stock ones, and they sound okay so far, but I'm sure it will sound even better with some better opamps.

 

Not a headphone user, so I'm not worried about any DC offset.

I still don't know what that is. LOL

post #2338 of 2586

Could someone compare this to the Peachtree Nova? I can get a used Nova for $900. Obviously this is significantly less money. What would be the major differences I'd find between them? I currently have Grado RS-2i's, Beyer DT880 600 ohms, AT CK10s, Audioengine 5 speakers, Macbook Pro, a nuforce uDAC, and a Little Dot 1+. Is the Maverick a worthy addition/replacement for some of my equipment?

post #2339 of 2586

Worthy sidegrade? If only you want to try the tube sound.

post #2340 of 2586

Would this dac/amp plus their amp but a worthy upgrade from a E7/E9 combo?

 

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