Tuesday, January 27, 2015

Parasound JC1 Mono Power Amplifier on demo.

Dear Friends,

 Parasound JC1 Mono Power Amplifier is demo @ Audio Basic.

This pair of JC1 is being designed by legendary John Curl and has been highly claimed by Stereophile for Amplifier of the Year and Recommneded Components, and The Absolute Sound for editors' choice !

 "..Class A Recommended Component - "...ultra-wide bandwidth, high-current capability, low, low noise, a high S/N ratio, and a fast slew rate, among many other indicators of outstanding amplifier performance." "There was an honesty to the overall tonal and harmonic presentation that transcended technological stereotypes." "The Halo JC 1 is not only the best amplifier to come from Parasound, it ranks up there with the best high-end heavyweights." "Rocks for sure." " Quoted from Stereophile.

 - Premier monaural amplifier
 - Circuitry designed by legendary John Curl and CTC Builder
 - Ultra-high bias Class A/AB operation
 - Exclusive two position bias level adjustment
 - Balanced inputs with discrete circuits and XLR connectors
 - Vampire Direct gold-plated OFC RCA input
 - Dual heavy-duty 24k gold-plated 5-way speaker binding posts
 - Direct Coupled - no capacitors or inductors in signal path
 - Complementary MOSFET driver stage and JFET input stage
 - 18 beta-matched 15 amp, 60 MHz bipolar output transistors
 - 1.9 kVA encapsulated toroid power transformer
 - Independent power supplies for input, driver and output stages
 - 18,000 µF filters for driver stage
 - 132,000 µF Nichicon Gold Tune filters for output stage
 - DC Servo and relay protection circuits
 - REL and Nichicon Muse capacitors
 - Harris hyper-fast soft recovery diodes for all bridge rectifiers
 - Auto turn-on by 12v trigger or audio signal trigger
 - Ground lift switch , adjustable turn-on delay
 - 4u Chassis with rear carry handles, rack mounting kit included
 - Premium detachable AWG 12 power cord with silver solder
 - THX Ultra2 certified

Continuous power output, 20Hz - 20 kHz:
         400 watts RMS x 1, 8 Ω
         800 watts RMS x 1, 4 Ω
        1200 watts RMS x 1, 2 Ω

Class A power output, 20Hz - 20 kHz:
         25 watts, bias set to high, 8 Ω
         10 watts, bias set to low, 8 Ω

Current capacity:
        135 amperes peak

Power bandwidth:
        2 Hz - 120 kHz, +0/-3 dB at 1 watt

Total harmonic distortion:
        < 0.15 % at full power

IM distortion: balanced 16 V rms
        < 0.03 %

Slew rate:
        > 130 V/µsecond

Dynamic headroom:
        > 1.8 dB

Input sensitivity:
        1 V for 28.28 V, THX Reference Level

Input impedance:
        100 k Ω

S/N ratio:
        >120 dB, IHF A-weighted, bias set to high
        >122 dB, IHF A-weighted, bias set to low

Damping factor:
         >1200 at 20 Hz

Power Requirement :
         250 watts idle 1280 watts full power into 4 Ω

DC trigger output capacity :
         +12 Vdc, 150 mA

        17-1/4" w x 7-5/8" h x 20 " d, 7 " h without feet

Net weight: 64 lb.


Aurender X725 USB DAC Amplifier is on demo !

Dear Friends,

The latest Aurender X725 USB DAC Amplifier is demo @ Audio Basic.

The Aurender X725 is an all-in-one DAC, preamplifier and power amplifier designed to simplify the task of configuring and setting up a High-Resolution audio system. As the DAC, preamplifier and power amplifier are conveniently built in, all you need to do is to connect the speakers to the Aurender X725.

Simply have a USB cable, power cord, Ethernet cable and a pair of speaker cables ready and you are all set! An audio system designed around the Aurender X725 and X100 music player will use fewer cables and fewer audio components than a traditional analog based audio system, and can be set up much more quickly and easily.

The Aurender X725 is ideal for music lovers who don't have the patience or space for all the "Audiophile clutter" but want to maintain the sound quality. The digital audio signal received to the USB audio input of X725 from the X100 or N100 is converted to an analog signal by the internal DAC. The preamplifier section controls volume and source selection, and the power amplifier amplifies the audio signal to power the speakers. And, the fun iPad or Android app controls all!