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
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
