[KB]

We have been working hard for many months now to bring to our customers the ALO Prescription (Rx) Headphone amplifier.

Designed from scratch, the ALO Rx is utilizing dual power sources: two 3,7 volt rechargeable Li-On batteries which should supply tons of power for headphones of all flavors, from the ultra-sensitive IEM more power-hungry circum-aural headphones.

The amp’s dimensions will be a super small 2.5 * 0.5 * 4.2 inches of extruded aluminium in a choice of red, black, or silver.

Further Details
* High output power - a minimum of 5.25V peak to peak and over 100mA of output current, so can easily drive any headphones.
* The ALO Audio Rx has a real bi-polar power supply not a rail splitter…
* Long-lasting, rechargeable battery - The ALO Rx contains dual lithium-ion battery which will power the amp for more than 15 hours at typical listening levels. It recharges in about 2 hours from an external wall-wart charger. You can also operate it while plugged in to keep the battery topped off. Uses a proprietary DEDICATED battery supervising / charging IC.

Specifications:

* Frequency response: ±1dB; 10Hz - 20kHz ±0.1dB @ 1V out
* Maximum output: 7.45V Peak to Peak
* Output source impedance: Less than 1Ω
* THD+N: 0.004% @ 1V RMS out into 24Ω
* Broadband noise: <10μV RMS, unweighted, integrated over 20Hz - 20kHz
* Output DC offset: <3mV
* Input impedance: 40kΩ
* Maximum input level: 5V RMS
* Channel tracking (gain difference between channels, all volume steps): <±0.2dB
* Gain: 1.5X /6X ---5V (switch-selectable), ±<0.5dB
* Dimensions: 4.2″ long x 2.5″ thick x 5″ wide

I have a initial run of these being made right now and are due to be ready for sale some time in early October. These will come with a wall wart charger good for use in any country. The working prototype went through several tweaks and the final product has proven to be truely a world class portable headphone amp, we are more than thrilled.

More info soon.

Thank you

Ken

 

[IPodPJ]

Just a clarification of the specs:



Looks cool. Do you know what the price will be yet, and can you talk some more about the internals?

 

[KB]

Quote:

Originally Posted by IPodPJ /img/forum/go_quote.gif Looks cool. Do you know what the price will be yet, and can you talk some more about the internals?

Cool thanks for alerting me to the typos... I will try and get more info soon.


Ken

 

[kboe]

Looks sweet and perfectly thin to mate with an iPod/iMod! Cant wait to see a real one!

 

[kboe]

HAHAHAHAHAHA I just got the name. Am I slow or what?

 

[KB]

Quote:

Originally Posted by kboe /img/forum/go_quote.gif HAHAHAHAHAHA I just got the name. Am I slow or what?

Tee hhehe

 

[kboe]

The input and output jacks look a little close, would your larger connectors still fit?

 

[KB]

Quote:

Originally Posted by kboe /img/forum/go_quote.gif The input and output jacks look a little close, would your larger connectors still fit?

Kobe,

The distance is a standard. One Canare F12's should be fine with another Neutrik, not not 2 F12's.

Thanks

Ken

 

[kboe]

Maybe it just looks close in the rendering. Thanks

 

[vkvedam]

Thanks for your sharing.

 

[KB]

We are in the process of completing the Rx amps now. I will post photos soon.

Ken

 

[Vinnie R.]

I had the opportunity to listen to a prototype version of the ALO Rx amp - and it sounded VERY good, indeed!

Ken - you are going to sell a boat-load of these, so better order a lot of parts for the first production run.

Congratulations!

Vinnie

 

[kboe]

Price?

 

[KB]

Quote:

Originally Posted by kboe /img/forum/go_quote.gif Price?

Hey kboe

$345 plus SH. I will have some at the RMAF show at my table for sale for $299 (RMAF special!) though so if your going please swing by.

Ken

 

[KB]

We just got the Rx enclosures in this week and are building. I am going to RMAF and will have them to listen to. When I return from the show I can get some glamor shots up, for now iPhone pics will have to do. We are thrilled with the Rx performance, an easy contender for top portable.

Ken