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Go-Vibe V7 arrived! - Page 3

post #31 of 101
Thread Starter 
OK, well my amp has arrived. I'm at the office so I can't listen to it until I get home later, and I will most certainly post my impressions. The battery does not slide around in there, by the way. It is as snug as a bug in a rug.

It is a nice looking little amp, but I see what the person was saying about how it is easily scratchable. Also, I put the little self-stick soft pads on the bottom that Norm supplies with the amp. I figured, why not... I never really travel with it anyway.

Well, two of the glue dots are thicker than the other two, so the amp wobbles back and forth. Ok, fixed. I just moved one of the dots from the front to the back and vice versa and it seems to be level now.

I have the maxed out package. V7 Max Extra (gain 3) with 9V rechargeable and 12V adaptor.

I am looking forward to trying it with my Denons and my Triple.Fi. Reviews to follow this evening.
post #32 of 101
Quote:
Originally Posted by The Other Allen View Post
Thanks for the info. E-mailed Norm to see if I can be one of the lucky 10. Glad to hear it is even better than the GV 5, which I love.
I was able to place my order for a GV 7 today.
What power supply does Norm recommend to go with the amp and where can I buy one?
post #33 of 101
Thread Starter 

Letter to Norm / V7 Max review

Instead of repeating myself, I will just post the letter I sent to Norm. That should give you a fairly good impression of what I think of this amp.

______________________________


Norm,

I received my V7 today. I've been listening to it for an hour and I can't think of anything negative to say about it. You really set the bar high on this one, and I offer you all the praise in the world. This is a real contender among amps that cost significantly more! This amp has 3 times the transparency of the V5 or V6. There is no bass bloat like there was on the V6, and no harsh highs like on the V5. The V7 Max has a much better power output, and I can't hear any distortion like I did on the V5 or V6. The gain of 3 only has a very slight background noise when turned all the way up on the volume dial when there is no music playing, so it still very quiet considering it is not low gain. The detail and soundstage are dramatically improved over the V6. You should really hear it with these Denon AH-D5000. It's quite impressive.

You did a superb job, Norm, and I just wanted to congratulate you and thank you. You provided me with my first ever headphone amp (V5) and my V6 and now my V7 Max. In fact, you've been the only person I've turned to for amps! You have helped me to discover the wonderful world of hi-fi headphone audio, and it's been a pleasure to have trained my ears and learn and grow with your amps. I already have my eyes set on a $1200 Meier Audio amplifier for desktop use, and I would have never known about the necessity of amps if it wasn't for you.

I know you are trying to extend the line of Go-Vibes to another builder, so I have already offered my services to anyone who wishes to use them. I'm sure you remember the logo concepts I came up with for you.

I wish you all the best in the world as you retire from the business and move on to bigger and better things. It's a shame though, because you have really turned the Go-Vibe into a competitive player with this V7. No longer can people think just because the Go-Vibe is inexpensive that it isn't worthy of praise. It's no longer the amp that says "I think I can," rather it is the amp that says "I've climbed over the hill and gone a few miles more!"

Best of luck in all of your future endeavors! You will be missed by many of us in the Head-Fi community.

Kind regards,
Phil
post #34 of 101
Thread Starter 
Quote:
Originally Posted by The Other Allen View Post
I was able to place my order for a GV 7 today.
What power supply does Norm recommend to go with the amp and where can I buy one?
Send him an e-mail. He will mail you one. It has to be a regulated and isolated power supply. It is a 12VDC. I think he sent you a piece of paper that says how many millimeters (mm) the adaptor plug needs to be.

Also, you should get the rechargable 9V NiMH battery. It is a MAHA brand, 200 mAh. (unless of course you had your amp set to no charge, which would be silly because these batteries can charge up to 11.7 volts says Norm.) Otherwise, I would have went with charging off so I could use a regular battery, but the reason above is why I didn't.

Here is the model of the power supply he sent me, so it's obviously the one he recommends. I'm just copying the info off of the label for you. Hope it helps!


CUI Inc.
Switch Mode Power Supply
Model No.: EPAS-101W-12
P/N: DPS120100UPS-P5P-SZ
Input: AC 100-240V, 50-60Hz, 0.3A
____
Output: DC 12V - - - 1.0A

For I.T.E. Use only

Then the UL logo, etc, etc.

Then it has a drawing of the (-) on the outer ring, and the (+) on the center. So it's center pin positive.

0721 A Made in China RoHS
post #35 of 101
Quote:
Originally Posted by IPodPJ View Post
Send him an e-mail. He will mail you one. It has to be a regulated and isolated power supply. It is a 12VDC. I think he sent you a piece of paper that says how many millimeters (mm) the adaptor plug needs to be.

Also, you should get the rechargable 9V NiMH battery. It is a MAHA brand, 200 mAh. (unless of course you had your amp set to no charge, which would be silly because these batteries can charge up to 11.7 volts says Norm.) Otherwise, I would have went with charging off so I could use a regular battery, but the reason above is why I didn't.

Here is the model of the power supply he sent me, so it's obviously the one he recommends. I'm just copying the info off of the label for you. Hope it helps!


CUI Inc.
Switch Mode Power Supply
Model No.: EPAS-101W-12
P/N: DPS120100UPS-P5P-SZ
Input: AC 100-240V, 50-60Hz, 0.3A
____
Output: DC 12V - - - 1.0A

For I.T.E. Use only

Then the UL logo, etc, etc.

Then it has a drawing of the (-) on the outer ring, and the (+) on the center. So it's center pin positive.

0721 A Made in China RoHS
Thanks!
post #36 of 101
Quote:
Originally Posted by IPodPJ View Post
Instead of repeating myself, I will just post the letter I sent to Norm. That should give you a fairly good impression of what I think of this amp.
...
A fine review and a wonderful letter, Phil!
post #37 of 101
my sentiments exactly; especially with my Denon D2000/
post #38 of 101
Thread Starter 
Did some of you not get your V7 yet? I'm surprised we don't have more impressions yet.

Will someone volunteer to send Skylab a V7 Max to review? I would, but I just got it and am not willing to part with it, not until I have a home amp anyway.

I would be surprised if the V7 Max isn't one of the best (if not the best) amps in the $100 - $300 range. Of course, I am basing this on absolutely nothing as I have only listened to a handful of headphone amps. But my ears don't seem to be deceiving me. The one great thing about this amp is it has opened my perception up to sonic transparency. I can't even imagine how transparent an amp like the Opera is.

The sad thing about this is that probably only 25 people will be fortunate enough to own a V7 Max, and 35 people owning the V7 Eco (but only because Norm ordered 10 more Eco boards, and I think he has 9 left for sale).

You think we can convince Norm to stick around long enough to make a V7 Max + DAC? I could only imagine how awesome this thing would be if it had a killer DAC built into it, with top of the line Burr Brown chips.

It's funny... You start out the hobby with cheap IEMs. Then when you get to a Super.Fi 5 pro and an iPod, you think it's the most amazing thing you've ever heard. Almost $3,000 later, I still get thoroughly impressed with each additional purchase. I can't imagine how impressed some of the people here must be who have killer sources and amps. I am fortunate though to not have taken any backwards steps. A lot of people on Head-Fi wind up buying equipment and then regretting their purchases, realizing their older equipment is better than the new stuff. I am lucky that I have made sound, progressive purchasing decisions -- and it's only because of this community!

So the next time you think about purchasing more gear, stop, and donate $20 to Head-Fi first. It's the best investment you could make.
post #39 of 101
I wonder how this amp compares to the high performance version of the mini3
post #40 of 101
Or the Xin Supermicro?
post #41 of 101
I spent a couple of minutes a/b the Move and the GV7. The Move is superior: a bit, better warmth, bass and engaging soundstage but only a bit. The amp section of the Move is very special which shows how good Norms V7 is. The V7 blows away all of my earlier versions of his amp. Like twice as good as V5. I keep looking down at it in amazement. It has great dynamics and punch, terrific clarity and well rounded bass, it powers my D2000s at 10:00, effortlessly. It is really unfortunate they are unavailable to others. Does anyone remember what the battery life expectancy is on a regular 9V battery?
post #42 of 101
I am loaning my GV7 to Skylab. He is a bit backed up now and will let me know when he is ready to receive it for review.
post #43 of 101
I can only tell you that I know better sounding chips suitable for 6-12V supply, with higher current efficiency and lower power consumption than AD8397. So I'm grateful for the pics assuring me I can compete with such amps if I change the housing. Till now, local orders have kept me constantly busy for months.
post #44 of 101
Quote:
Originally Posted by majkel View Post
I can only tell you that I know better sounding chips suitable for 6-12V supply, with higher current efficiency and lower power consumption than AD8397. So I'm grateful for the pics assuring me I can compete with such amps if I change the housing. Till now, local orders have kept me constantly busy for months.
Why so secretive? Just tell us what this fabulous chip is. Or is it meant to be a secret, and you're going to try to sell us amps with opamps covered by a dot of read paint ?
post #45 of 101
Dots are removable, rather some surface scratching. Secretive because it's my business currently, and because these chips are difficult to use, not just "plug and play".
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