¡@

Wisdom in mind,   enthusiasm at heart.

Home Products Warranty Shop Contact Us Shipment Chinese


¡@


HE-1 LE
(HE-1 Linear Power Edition)

Real Balanced ACSS Pure Class A Preamp
¡@

   

   

   
Summarize Use Manual Specs Shipping Cost

Please note:
       
 This product applies the latest regenerate power technology. Therefore the working temperature has dropped significantly compared to the previous generation products. This allows leaving power on over the long term.
        This product is burned-in for at least 300 hours before shipping.
        We recommend burning it for an additional 300 hours for best results.
        The quickest way to complete the burn-in of this product is to power on it continuously, no matter with or without music playing to the burn-in.
        Do not immediately power on the unit after powering it off. Wait for at least 30 seconds.


Connect with KRELL amplifiers:

         HE-1 LE is compatible with KRELL amplifiers CAST inputs.
        A cable can be made with one side connecting to HE-1 LE ACSS outputs, other side to a  KRELL amplifier CAST inputs.
         The ACSS output pins:
         Pin 1, GND
         Pin 2, Hot
         Pin 3, Cold
         Pin 4, GND
         The ACSS input pins:
         Pin 1, GND
         Pin 2, Hot
         Pin 3, Cold
         The XLR input/output pins:
         Pin 1, GND
         Pin 2, Hot
         Pin 3, Cold

¡@

Button and display functions ¡G


Display inform:
         Left first mean the input channel number .
         Left second mean the pre-volume control.
         The remaining digit mean the volume level, number higher volume is higher .

Left button: (Only available while user want to change the set  feature .)
        Push the left button once, the leftmost digit will light and The remaining digits will blink, which indicates it is selected. This allows changing the corresponding setting. Turn the volume knob to select the desired value. While the display is still blinking, push left button again , the next digit to the right will be selected and stop blink.
         While the rightmost digit of the page 2 is stop blink, push the left button one time, quite the set menu and back to the normal state.
¡@

Right button: (Selector)
         While the display is in normal state (not blinking), it allows selecting the input source in decreasing order. One of the following will be displayed:
"1 - XLR";
"2 - RCA";
"3 - XLR";
"4 - RCA";
"5 - ACSS";

Knob:
         For change the volume .

Setting guide¡G

Display auto-dimming setting:
         Push the left button once, the leftmost digit will light and The remaining digits will blink, which indicates it is selected. Turn the volume port down or up, there is a little LED at the right bottom of the leftmost digit light or dark, when the LED light mean enables the display's auto-dimming; the display will dim 10 seconds after the buttons are left untouched, only keeping a LED bar lit to indicate the unit is turned on. As soon as a button is touched, the display will turn back on. When the LED dark mean disables the display's auto-dimming, the display will remain on at all time.

Pre-volume setting:
         Push the left button two times, the second digit will light and The remaining digits will blink, which indicates it is selected. Turn the volume port down or up, the second digital change from between 1 to 9, 9 mean no attenuation , bypass the pre-volume control , down every 1 steps mean the pre-volume with -1DB attenuation , when turn to 1, that mean -8DB attenuation of the pre-volume. The pre-volume control only available for XLR and RCA inputs.

Gain setting:
         Push the left button 3  times, the 3rd and rightmost  digit will light and The remaining digits will blink, which indicates it is selected. Turn the volume port down or up, there is a little LED at the right bottom of the rightmost digit light or dark, when the LED light mean enables the high gain mode, gain is 16DB, when the LED is dark, mean enables the low gain mode, gain is 6DB. The HE-1 LE apply the latest technology, no any switch or parts change in the gain modes so there is no effect on the sound quality,just choice the proper gain for the power amp  .


The unit applied input short design :
         The unit  had design the analog idle input short circuit for avoid the disturb between different sources.
         This design also applied in a lot high end
brand devices.
         The working theory : 
Without the idle input short circuit ,if the input 5 and input 4 had connect two extra DACs,  while users select the either input 5 and input 4 , the another input signal will fire through the circuits and mix  into the using signal, even though this signal is  weak  but still can degrade on the sound quality.
          With the idle input short circuit function : if user select either the input 5 and input 4, the another input signal will short circuit then no any signal fire through circuits , can keep the sound quality had not degrade.

          In world there are more than 99% DACs and the sources had allow the outputs short ,
          Below case users don't want the idle input short circuit function, users can open the chassis, pull off the jumpers of the proper input channels, please note must pull off of left and right channels together :
        1, The same extra source not only connect the
unit analog input, but connect with other amps simultaneity.
        2, The same extra source connect to the
unit different inputs  at simultaneity.

¡@
Ý


Ý

               备®×§Ç号: 粤ICP备05020367号

¡@              ª©权©Ò¦³: ºÍ§Ó­µ响

Copyright(C) 2004 www.audio-gd.com All Rights Reserved
¡@