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ALO Audio RXMKIII Balanced Portable Amplifier Impressions - Page 47

post #691 of 793
Quote:
Originally Posted by victorcc View Post
 

Hi there,

 
 
I am a recent very happy owner of an Rx-Mk3-B. I mainly use it to balance-drive my HE-6s and it sounds amazingly good.
 
However I would like to use the amp to SE-drive my very sensitive CIEMs and, as it happens to many folks here, I get the very noticeable ugly hiss.
 
My question is: Is there a way to decrease the gain for the single ended output? (I think that I read somewhere that ALO increased the gain of the SE output to match the volume to the balanced one)
 
 
Cheers

 

Here is a post from the Tralucent 1plus2 thread that may help:

 

 

Originally Posted by Audiowood View Post

 

I also heard some hissing sound when using my sony iem ex1000. Hissing sound is irritating and make the silent passage in classical sound like internet radio quaility. I manage to completely remove the hissing sound by using an in line volume controller. Now the back ground is as black as my RSA hornet... dead quiet.. so dead I thought its dead biggrin.gif .

 

 

Capture.JPG

 

Can be bought at amazon for $17.25 and will not degrade the sound.

 

Here is what I did:

 

1) Plug the shure controller at full volume in rx 3

2) Lower shure in line volume controller knob until hissing sound completely gone

 

3) Turn up Rx 3 volume slowly until comfortable level... you are all set now.. hissing sound completely gone.

4) I notice I have a lot of play on the rx volume now and my Sony IEM uses the same amount of volume as my HD650 on the RX 3.

 

5) No need to send back to Ken as he is not able to reduce the hiss as mention in earlier thread. use this gem and gain at least 5% of happiness.wink.gif

post #692 of 793

Thanks very much for the reply.

 

It helps me a lot especially to understand that it does not seem to be possible to reduce the gain/hiss directly in the amp. :(

 

The volume control would work but I wanted to avoid that route. I have a very nice cable for the CIEMs (Silver Poison) and I wanted to avoid putting something of less quality between the cable and the amp. Another example would be the Etymotic adapter:

http://www.ebay.es/itm/ETYMOTIC-ER4P-TO-ER4S-RESISTOR-ADAPTOR-3-5MM-PLUG-/290372905689

http://www.headphone.com/accessories/adaptors/etymotic-er-4p-to-er-4s-adapter.php

 

I think that I will try one of these adapters as the volume control is even something more in between.

 

 

Cheers

post #693 of 793
Quote:
Originally Posted by Room40 View Post

Hi Bootsy

Can I ask about your cable? Is that an lightning cable or is the case surrounding the iphone convert it into a mini-usb?

Hey Room40,
It's a Venturecraft lightning/USB connector.

post #694 of 793

I received my Rx-Mk-3B+ yesterday and was sadly disappointed to find a huge channel imbalance in the medium and high gain settings. In the medium setting the right channel has at least 20% more gain than the left and in the high setting the left channel is 30% or more louder. 

 

Does anyone know if this balances out with burn in or do I have to go through the return/warranty process with ALO? Living in Prague it means a considerable amount for shipping and moreover at least 3 weeks lag time between returning the amp and receiving a replacement. 

post #695 of 793
Quote:
Originally Posted by Praguepolo View Post
 

I received my Rx-Mk-3B+ yesterday and was sadly disappointed to find a huge channel imbalance in the medium and high gain settings. In the medium setting the right channel has at least 20% more gain than the left and in the high setting the left channel is 30% or more louder. 

 

Does anyone know if this balances out with burn in or do I have to go through the return/warranty process with ALO? Living in Prague it means a considerable amount for shipping and moreover at least 3 weeks lag time between returning the amp and receiving a replacement. 

Praguepolo,

 

That is terrible and I am so sorry for the laps in our QC. Please PM me with your address and I will ship you a new one.

 

Thank you

 

Ken

post #696 of 793
Quote:
Originally Posted by KB View Post
 

Praguepolo,

 

That is terrible and I am so sorry for the laps in our QC. Please PM me with your address and I will ship you a new one.

 

Thank you

 

Ken

Ken,

 

Thanks for your prompt positive reply.

ALO's customer service model is by far the best in the industry.

PM sent...

Again, thanks.

 

Robert

post #697 of 793

Got my RxMk3b+ last week. Really happy with it.

 

Using it to drive my AK120 feeding into Fitear TG334 or Fostex TH900.

post #698 of 793
Quote:
Originally Posted by sidrpm View Post
 

Got my RxMk3b+ last week. Really happy with it.

 

Using it to drive my AK120 feeding into Fitear TG334 or Fostex TH900.

I'm confident that the unit I received was just a fluke... it can happen with any product. What's really impressive is how well ALO stands behind their products and the customer service they provide. As soon as I have my new Rx-Mk3B+ back I am ready to test it on several sets of cans. ;-)

post #699 of 793
Quote:
Originally Posted by Praguepolo View Post
 

I'm confident that the unit I received was just a fluke... it can happen with any product. What's really impressive is how well ALO stands behind their products and the customer service they provide. As soon as I have my new Rx-Mk3B+ back I am ready to test it on several sets of cans. ;-)

Based on what I saw here, I totally agree about their commitment to customers.

 

Enjoy your amp buddy.

post #700 of 793

Is the new mk3b+ fits sensitive CIEMs?   I think the old mk3b cant be paired with iems.

post #701 of 793
Quote:
Originally Posted by hjm1364 View Post

Is the new mk3b+ fits sensitive CIEMs?   I think the old mk3b cant be paired with iems.

As far as I know, there is still the hissing sound when using sensitive iems like the TG334 on this new amp.
post #702 of 793

Just placed an order for the ALO Rx-MK3-B+... pretty excited to get the amp, and have a bunch of Toxic Cables Silver Widow (balanced RSA/ALO terminations) cables currently being put together for my HD650s, along with a Silver Widow balanced RSA/ALO mini-to-mini IC. I just hope that I get the cables soon! lol... in the meantime I'll probably just use the single-ended line-in (w/ my CablePro Reverie from the CLAS -dB line-out) and the single-ended headphone out.

 

My only concerns I guess are the whole specs in single-ended (esp. for the 300ohm HD650), which says it only provides about 40mW in single-ended if I recall correctly... I hope that's enough to drive the headphones decently for the time being until I receive my Silver Widows. Still, I've contemplated maybe if I get impatient on waiting for the Silver Widows to get a CablePro Reverie balanced RSA/ALO mini-to-mini IC from TTVJ (to balance the back-end at least, while still using the HD650s from the single-ended headphone out) if it would provide the 300ohm HD650s with the balanced mW specifications instead. I'm thinking that the specs only refer to the single-ended/balanced headphone outs though, so idk if it'd be worth it to get an extra Reverie interconnect in the meantime to only balance the amp's backend if that's the case.

 

Also, I do hope that the hiss or whatnot is at least tolerable with my 16ohm Sennheiser IE-80s... with my HP-P1 in high-gain, there seems to be quite a prominent level of hiss/background noise, but it is definitely tolerable, so I'm hoping that the Rx-MK3-B+ would be similar at the very least, lol.

 

One major thing I think I'll find very convenient is not having to swap out batteries every so often as with my SR-71, which tends to become a hassle every once in a while. Just plugging the amp in will be much easier I think, haha.

post #703 of 793
Quote:
Originally Posted by sidrpm View Post

Got my RxMk3b+ last week. Really happy with it.

Using it to drive my AK120 feeding into Fitear TG334 or Fostex TH900.

How is the hissing problem on alo Rx 3 B+ ?
I saw you pair with sensitive iem Fit Ear TG 334 and hp Fostex TH 900

How is the SQ different between Rx 3 B vs Rx 3 B +.

Thank you
post #704 of 793
Quote:
Originally Posted by AlanYWM View Post

As far as I know, there is still the hissing sound when using sensitive iems like the TG334 on this new amp.

I tried with yamaha eph100,when there's no songs playing, I will say background is not total silent. I can hear some hissing, but it's not serious.. With songs being played, I don't hear any hiss at all... Btw mine is mk3b+ amp
post #705 of 793
Quote:
Originally Posted by rudi0504 View Post


How is the hissing problem on alo Rx 3 B+ ?
I saw you pair with sensitive iem Fit Ear TG 334 and hp Fostex TH 900

How is the SQ different between Rx 3 B vs Rx 3 B +.

Thank you

 

Pak,

 

This is a faint hiss when nothing is playing. Other than that nothing disturbing when the song is playing. Neither on the TG334 or on Final Audio (Heaven III, IV, V and V aging).

 

I have not personally tried the Rx 3B (old model) but while some people say that the only difference is the battery life (longer in the new model) a large majority feel that the sound is also improved with the B+. 

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