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New Xin Reference Amp by Dr. Xin !!! - Page 10

post #136 of 559
Quote:
Originally Posted by Kabeer View Post
How do I find my order number? I never recived any e-mail from Dr Xin. Just m paypal receipt from Paypal
Did you gave him the correct e-mail address?
You might want to e-mail him about this.
post #137 of 559
Quote:
Originally Posted by mrarroyo View Post
Any of the Xin's amps that I have tried can drive the AKG K701 to painful levels. That includes from the Supermicro IV, the Supermini IV, and the Supermacro LE.

By the way all the above amps can also drive to painful level the Sen HD600 (300 ohm) and the Beyer DT990 (250 ohm). Hope this answers your question.
Thanks. I've another question: why are these cans said to need home amps, then? I understand that Supermicro can give loudness to a K701, but is it enough to exploit all the K701's goodness?
I was taking to MaloS, and he told me that there's much difference for a K271 to be driven by his old PortaCorda II and his new Millet Hybrid home amp.
I'm asking this because I've put my interest on the K701, but if it needs a 600$ amp to show what it's able to do, it would be better if I settled on a cheaper can (like the 271).
post #138 of 559
Quote:
Originally Posted by mrarroyo View Post
Ray is a great guy with great products. I have said before and will continue to say that his portable amps are built like a tank, sound great, they arrive faster than anybody I know, and he responds very quickly to emails.

However why are you comparing the Xin Reference to the RSA Hornet? Dr. Xin has been making miniature/small amps way before others had theirs in the market. The Xin Reference is simply the logical evolution to marry Dr. Xin's 4 channel technology with the Supermicro IV and the case/battery life of the Supermacro IV-LE. Simple.
I don't think I asked my question correctly.
What I meant was is SuperMacro as versatile as the Hornet in terms of being able to use it with IEM's all the way up to full sized headphones?
post #139 of 559
From reading what the Reference is supposed to do there would be no reason to not think so but no one has reveiwed it yet with an array of monitors, that I know of anyway, but your question should be answered in short order if the stork of amplifiers arrives as a doorstep soon or dumps it down a chimney in which case I hope that we are all taken to a new height in listening blissatude with any monitor that graces our eagerly awaiting auditory system that seems to need a daily fix from not only music but the knowledge that it is the best that can be obtained from an amplifier if not only a portable but possibly scaling the heights of many if not most, amplifiers that can drive most any ear monitor.
post #140 of 559
Quote:
Originally Posted by dle4e_2005 View Post
Did you gave him the correct e-mail address?
You might want to e-mail him about this.
hi dle4e_2005. nice to see you here =) Not changing your MicroIV to reference?
post #141 of 559
Quote:
Originally Posted by procreate View Post
Just send an e-mail. Make sure the subject is [order number] change of order to get his attention.
I'm just afraid if Xin miss my email and send the one i ordered.
post #142 of 559
Curious... what are the gain settings?
post #143 of 559
Quote:
Originally Posted by theory_87 View Post
hi dle4e_2005. nice to see you here =) Not changing your MicroIV to reference?
Hi there.
Nope,as i chose the Micro IV for the small size.
So I have no reason to change my order to Reference which is bigger in size.

Quote:
Originally Posted by theory_87 View Post
I'm just afraid if Xin miss my email and send the one i ordered.
Need not worry,I changed order with him twice and he replied to me quickly.
I changed order from Supermacro LE to Supermini then Supermicro.


I'm as Indecisive as ChickenGod(opps!)

But the knob and the metal casing is much better than the scroll wheel and plastic toy-like casing of Supermicro.
post #144 of 559
Quote:
Originally Posted by antonyfirst View Post
I wonder if it has enough punch to drive WELL an AKG K701.
Is a Supermacro able to do it?
As the Xin Reference has four batteries I assume it has something less than 6V max available to drive headphones. I wish I had an oscilloscope to connect to a home amp driving K701 or equivalent headphones, to see what voltage swings occur. I wonder if anyone here has done this?
post #145 of 559
Thread Starter 
Quote:
Originally Posted by antonyfirst View Post
Thanks. I've another question: why are these cans said to need home amps, then? I understand that Supermicro can give loudness to a K701, but is it enough to exploit all the K701's goodness?
I was taking to MaloS, and he told me that there's much difference for a K271 to be driven by his old PortaCorda II and his new Millet Hybrid home amp.
I'm asking this because I've put my interest on the K701, but if it needs a 600$ amp to show what it's able to do, it would be better if I settled on a cheaper can (like the 271).
Before I answer let me put my flame proof suit. IMO very few cans need amplifiers unless you listen to painful levels. Most devices can drive cans that have less than 120 ohms resistance.

Now there is a difference between driving and truly making a can shine. When I use my K701 with an amp I listen to the same overall sound pressure level as if it was driven straight out of an unmodde ipod. That is with the iPod volume at about 60% to 70%. However with the amp even though the overall volume is the same having the power reserves of the amp it allows transients to be played to the fullest instead of cutting off some of the wave due to clipping from the iPod amp. Also the amp allows better channel separation and greater soundstage (as a norm). Finally an external amp ussually extends more in both directions (bass and treble).

Finally you do not need to spend over $600 on an amp to make the K701 shine. IMO the following amps will make it sing!

- Little Dot Micro Tube: Sell for about $225 (if you go for this get the one with the upgraded components)
- Musical Fidelity X-Can V2: Sells used from $140 to $190. If you add an external PSU ($15 to $300) and the PinkFloyd Mods ($100 if you do them yourself) and a pair of matched Russian 6N1P-EB or 6H23-EB ($50) you have a fantastic amp for as little as $305 to $375.
- Musical Fidelity X-Can V3: Sells use from $275 to $325. If you add an external PSU ($35 DIY to $300) and the PinkFloyd Mod ($100) if you do them yourself) and a pair of matched Russian 6N1P-EB or 6H23-EB ($50) you have a fantastic amp for as little as $460 to $600
- Heed CanAmp: Sells for under $400 used
- Mapletree Ear + Purist HD: Sells used for about $525 or new for $600

Good luck.
post #146 of 559
Thread Starter 
Quote:
Originally Posted by nickknutson View Post
I don't think I asked my question correctly.
What I meant was is SuperMacro as versatile as the Hornet in terms of being able to use it with IEM's all the way up to full sized headphones?
It appears that there will be 3 Supermacro models. The regular IV, the LE, and now the Reference. I have had experience with the first two and the answer is yes.

For example the Supermacro IV has a gain switch that in normal it is 3 and in high it is 8. In addition it has an inpedence switch which adds a 75 ohm resistor to each channel thus in effect reducing the gain of 3. This feature was initially meant to allow an user of the Etymotic ER4P to save some money and not have to buy the $65 P to S cable.

The Supermacro LE has the same switches, the Reference does not. However using the Supermicro IV as a refernce I can say that it drives the Senn HD600 (300 ohm) and the DT990 (250 ohm) to painful levels.

Hope I answered your question.
post #147 of 559
Thread Starter 
Quote:
Originally Posted by kramer5150 View Post
Curious... what are the gain settings?
Sorry, that I do not know. Hope Dr. Xin updates his site with the information soon.
post #148 of 559
Quote:
Originally Posted by mrarroyo View Post
The Supermacro LE has the same switches, the Reference does not. However using the Supermicro IV as a refernce I can say that it drives the Senn HD600 (300 ohm) and the DT990 (250 ohm) to painful levels.

Hope I answered your question.
Hi Mrarroyo,

You have said the supermicro IV can drive demanding full size cans to high volumes, but in your opinion do you feel it can drive them to "sing", or quite close to those full size amps you mentioned before?

Thanks
post #149 of 559
I was interested in the same thing: I'd like to know if there are portable amps that can actually make full sized cans shine. It would save me to buy two amps, one for iems and one for cans.

Also, another question for MrArroyo. Why does soundstage improve with an amp? What is the electrical principle? Is more current dedicated to a special channel responsible for soundstage?
Etymotic, for example, have in your head soundstage, though EFN made them present huge soundstage using the Supermicro IV.
I'm studying bioengineering, so I undestand some electronics, and I'm interested to understand as much as I can about the effects of a portable amp.
post #150 of 559
Ok, got a reply from Dr. Xin (first contact since ordering on 2nd April!! lol). He says that if payed by paypal, that he doesnt send out a receipt, paypal sends you a receipt and thats it (just in case any other customers are wondering).
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