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REVIEW: Go Vibe Petite DAC/AMP vs. D1 - Page 4

post #46 of 133
Quote:
Originally Posted by oicdn View Post
I don't have anything above 80 ohms right now, and I can't get past 9 oclock without it being stupid loud in high gain.

Not to say this amp can "power anything" but it puts out enough juice for an 80 ohm can just fine. There are MANY portables out there with a gain less than 9.5 and people are powering some pretty demanding cans with them....
Can you please explain what exactly gain is and the role it plays in driving high impedance phones?

And what are the other portable amps with gain less than 9.5? Like for example, what is the gain of an rsa hornet? Ive been researching and cant find the specs of the hornet regarding its "gain"

Thanks in advance...looks like ill be joining the ranks of proud owner of the under-hyped but over-performing Go-Vibe petite!!

Now if only someone would do a head to head against the pico and the predator... I know it would be too much to ask for the petite to win, but im interested in how close the fight would be
post #47 of 133
Thread Starter 
Gain is the output over the input signal, or GAIN over source.

Simplistically speaking, if you have a gain of 11, it's 11 times "louder" than the input signal.

Higher gain = more voltage drawn from the battery and circuit, and some amps today have extremely optimistic gain settings of like 11 or 12, which means signals/frequencies are getting clipped because you only have 9 or so volts coming from a battery. At a gain that high, you're introducing distortion before the volume knob is even turned anywhere. Albeit it may be minute, but the fact of the matter is, it's there...

The volume knob is just the "gate" to the physical volume you can hear. If the gain is set too high, the volume could be at 1% and you'll just be amplifying the clipping and distortion without the volume even being that loud. Obviously louder volumes put even more load on the battery and circuit by increasing voltage load. Adding more load to an already struggling circuit introduces even MORE distortion and clipping.

In high impedance phones, it's already hard to get the volume up due to the resistance (ohms) of the headphone. So having it on high gain, and turning the volume up to get satisfying audible levels means you're "maxing out" the amps abilities. If an amp is clipping before it's even to an audible level, how do you think the sound will be when cranked near max?

I got to a little under 50% volume on 80ohm cans and heard no distortion and the volume was adequately loud. I don't currently own anything rated higher than 80 ohms...but I am indeed curious to hear how it sounds.
post #48 of 133
Quote:
Originally Posted by oicdn View Post
Rip off? The Go Vibe? Well...it doesn't really matter as everything in audio is ripped of something else. Some manufacturers are more known to do so than others(not Jaben), even if it is kept on the DL...I'll leave it at that.

But do I believe it stomps the TH? Sure does, without a doubt, and by a fair margin as well. Check my review thread (link in sig) as I updated it with SQ ONLY rankings.....


I will read up on the other reviews you've done.So it stomps the Tomahawk ? Ok...

For a bass head using iem's and lowish impedance cans,which offers more satisfying bass in your opinion ? Oh,and do you know where this thing is made (what country ?)
post #49 of 133
Thread Starter 
It's shipped from Singapore, but I don't know the origin of manufacture.

The Petites bass has a little more weight behind it, otherwise, impact and attack are similar in the aggressive nature. So I would say the Petite.

I will say, the amps I've heard from Ray are good (check my review) and I favor their aggressive nature. BUT, it seems other amp manufacturers have caught onto this and have started producing impactful and aggressive amps as well, and what once was a lone territory/monopoly for Ray is now a plethora of choices.

DIY designs and amps are somewhat not included because you can get some REMARKABLE sound out of some designs. I'm speaking pretty much strictly "commercial". And FWIW, some of your DIY designs were taken by some vendors and manufactured commercially(some, even go a far as to call it their own design), if that's any indication to their circuitry...
post #50 of 133
i just got the petite today.
i guess the ones you can purchase from ebay is shipped from korea and currently
i'm living in korea so i picked up mine today.

without even the burnin, it sounded whooooole lot better than headsix...

and i had the same problem with the volume and couldn't put my cable in so i took it out
and works like a charm. (although, it looks funky. lol)

but this is a goooood amp for its price, no doubt!!!
post #51 of 133
Quote:
Originally Posted by tomo3014 View Post
i just got the petite today.
i guess the ones you can purchase from ebay is shipped from korea and currently
i'm living in korea so i picked up mine today.

without even the burnin, it sounded whooooole lot better than headsix...

and i had the same problem with the volume and couldn't put my cable in so i took it out
and works like a charm. (although, it looks funky. lol)

but this is a goooood amp for its price, no doubt!!!
Hi, I am so very glad you mentioned that you felt it sounded ... better than headsix. I have been wondering if I did right when I got the amp as I was just that close to emailing Dr Meier for his headsix, after going through the many many pages of that thread. Now, even if next 10 persons disagree, I will be happy to believe how you felt as it'd help save some money and I'll not feel missed out on headsix. Ha.

Cool that you got yours conveniently where you are in. I am glad I got mine easily from Jaben too.

Sorry but I can't quite understand about the volume and cable?? but the Petite's jacks are very close due to it's super portable size, and will not accomodate plugs that are bigger.

Great to hear more people enjoying the amp as well as I feel it is a really good amp worth having, especially for it's price, AAA batteries, DAC, small size but good funky build. LOL.

Wonder if we should start a new Go Vibe Petite /Petite +DAC owner thread too, just like the Alessandro MS-1 or Beyerdynamic DT990 threads, or perhaps we just add onto this thread.

Cheers.
post #52 of 133
Quote:
Originally Posted by tomo3014 View Post
i just got the petite today.
i guess the ones you can purchase from ebay is shipped from korea and currently
i'm living in korea so i picked up mine today.

without even the burnin, it sounded whooooole lot better than headsix...

and i had the same problem with the volume and couldn't put my cable in so i took it out
and works like a charm. (although, it looks funky. lol)

but this is a goooood amp for its price, no doubt!!!
Hi TOMO,

I'm living in Korea right now in Seoul. So where in Korea do you stay?

Regards,
Jon
post #53 of 133
How's the hiss on low gain, especially with IEMs?
post #54 of 133
Quote:
Originally Posted by tristram View Post
Hi, I am so very glad you mentioned that you felt it sounded ... better than headsix. I have been wondering if I did right when I got the amp as I was just that close to emailing Dr Meier for his headsix, after going through the many many pages of that thread. Now, even if next 10 persons disagree, I will be happy to believe how you felt as it'd help save some money and I'll not feel missed out on headsix. Ha.

Cool that you got yours conveniently where you are in. I am glad I got mine easily from Jaben too.

Sorry but I can't quite understand about the volume and cable?? but the Petite's jacks are very close due to it's super portable size, and will not accomodate plugs that are bigger.

Great to hear more people enjoying the amp as well as I feel it is a really good amp worth having, especially for it's price, AAA batteries, DAC, small size but good funky build. LOL.

Wonder if we should start a new Go Vibe Petite /Petite +DAC owner thread too, just like the Alessandro MS-1 or Beyerdynamic DT990 threads, or perhaps we just add onto this thread.

Cheers.
well, i'm currently using an Imod and i couldn't plug in my mini plug.
cause it interferes with the volume like oicdn said.
so i pulled out the volume knob. and my mini plug fits nicely without
any intereference. so if anybody that's planning to buy this amp
should know that the volume and the line in WILL MOST LIKELY interefere.
so just wanted to post it up here...

i loved the headsix but after comparing it with this amp.
i will go with this anyday... sorry Jan. i still love your product.

Quote:
Originally Posted by basman View Post
Hi TOMO,

I'm living in Korea right now in Seoul. So where in Korea do you stay?

Regards,
Jon
i'm near sinsa, kangnam. pm sent.

Quote:
Originally Posted by azncookiecutter View Post
How's the hiss on low gain, especially with IEMs?
i would love to answer the question but i don't have the screws to open
the front cover so i can't change it to low gain...
don't notice a lot of hiss or noise. but the pop noise was there allright.

tomo
post #55 of 133
Quote:
Originally Posted by tristram View Post
Great to hear more people enjoying the amp as well as I feel it is a really good amp worth having, especially for it's price, AAA batteries, DAC, small size but good funky build. LOL.
What are the measures of the Go-Vibe Petite-DAC? (Preferably metric)
post #56 of 133
Another question:

Can you keep the USB cable plugged in without overcharging the batteries? Does it indicate when the batteries are fully charged?
post #57 of 133
Quote:
Originally Posted by Anda8000 View Post
What are the measures of the Go-Vibe Petite-DAC? (Preferably metric)
4.5X2X7cm

Quote:
Originally Posted by Anda8000 View Post
Another question:

Can you keep the USB cable plugged in without overcharging the batteries? Does it indicate when the batteries are fully charged?
according to he manual that came with it,
there's no problem overcharging the batteries.
10~15 hours charging time.

i don't think there's a indicator.
haven't been burning it...
maybe i should...
post #58 of 133
@ tomo3014

Thank you!
That's pretty small...
post #59 of 133
Woohoo!!! Im finally a member of the club!

First impressions: WOW. My sr60's and x3i are singing like ive never heard before! Off the line out of my 5.5 ipod, bass and soundstage have a DEFINITE improvement. After a quick comparison with the petite and my old go-vibe v5, the petite is much clearer, wider soundstage, fatter bass. Its like i finally experienced what a decent portable should be doing, as opposed to my old portables which merely ampilifed volume (at least to my ears). The petite brings out the best traits of my grados and x3i.

Thu build is S-O-L-I-D. Nice mettalic feel and heft, plus it is really smaller than i expected. Ill try to post pictures later on over at Blackmores petite-pr0n thread hehe.

Looks like the caveats are true though, big cans need not apply. My dt880 250 ohms sounded anemic and underpowered. Sure they were loud at around 3 o clock, but the thump and presence of the signature dt880 sound were not there, so i took em off didnt try again.

But once I went back to the grados, audio nirvana quickly settled in. Once again, I am addicted to my music, and I simply lack the audiophile vocabulary to describe the changes I hear. Ive never had a decent portable setup, and my only basis for comparison is my desktop Millet Hybrid Max. The go-vibe petite is more forward, and to me, is a perfect fit for grados. Seems to me the niche of the petite is making low-impedance cans and iems shine.

Quick noob question though. I first tried pluggin it in my macbook, and leopard refused to recognize it. Is this so? So i cant use it in leopard? I quickly fired up parallels and vista, and vista immediately installed the burr-brown drivers. So the petite isnt mac-compatible? I sure hope not....

And what did you guys get it in the basic package? I just got the amp-dac, with 4 aaa batts already inside, the ouch, and the usb cable. The manual said there is another set of batts and a mini-to-mini cable, but i didnt have one in mine.

Im rushing to type this now, as i want to get back and explore my music library! Ill do a write up on the dac once I sort out my OS woes. I just had to write my first impressions, as i was absolutely floored by its sound. Suddenly, im reaching more for my grados, which has found its purpose in life again!

Gotta play with my new toy first....more impressions as the days roll by....
post #60 of 133
hey, i'm a mac user.
it does recognize but it's a little different than pc.
you need to go to preference and into sound. change the output to the dac. and you're
good to go.

i didn't get another set of batts
but i got a mini-to-mini(low grade) so i don't think you
have to worry that much.
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