Parasound Amps

Halo Integrated


http://www.parasound.com/hint.php
Preamp and DAC Features

Latest generation ESS Sabre32 Reference DAC (ES9018K2M)
Asynchronous USB 2.0 supports PCM up to 384kHz/32-bit
USB input decodes Native DSD64, DSD128, DSD256 and DoP DSD
Coax and optical accept PCM up to 192kHz/24-bit
Analog bass management with high & low pass crossovers
Home theater bypass input for surround sound integration
Front panel subwoofer level control
Dedicated high current headphone amplifier (TI TPA6120)
Phono for MM & MC with 100 Ω or 47k Ω load
Front panel Aux input with automatic +12 dB gain stage
5 pairs RCA line level Analog inputs
1 pair XLR balanced Analog input
Balanced XLR and RCA left and right preamp outputs
1 balanced XLR and 2 RCA subwoofer outputs
Bass & treble controls with relay bypass from remote or front panel
Rear panel IR input and IR loop output jacks
12 Volt input and output to triggers
Back-lit remote control with discrete buttons
0.5w standby power consumption meets Energy Star & EU specs
Power Amp Features
160 Watts x 2 @ 8 Ohms (RMS, both channels driven)
240 Watts x 2 @ 4 Ohms (RMS, both channels driven)
Direct amplifier input to bypass preamp section
High bias class A/AB operation
Oversized shielded toroid power transformer
Dual-mono power supply and power amplifier
40,000uF power supply filter capacitance
Matched JFET input stages and MOSFET driver stages
12 high voltage/high current bipolar output transistors
Heavy-duty 24k gold-plated 5-way speaker binding posts
Over temp and short circuit relay protection
10 Hz – 100 kHz, +0/-3 dB Total Harmonic Distortion (THD)
< 0.01 %, average listening levels
< 0.05 %, 160 watts x 2 @ 8 Ω Interchannel Crosstalk
Total Preamp Stage Gain: 10 dB
Total Amp Stage Gain: 28 dB Phono Stage Sensitivity / Input Impedance
Input Impedance
MM: 35 dB / 47 k Ω
MC: 52 dB / 47 k Ω or 100 Ω

Halo A21 


http://www.parasound.com/a21.php

THX Ultra2 certified
High bias Class A/AB operation
Balanced inputs with discrete circuits and XLR connectors
Direct Coupled – no capacitors or inductors in signal path
Complementary MOSFET driver stage and JFET input stage
16 beta-matched 15 amp, 60 MHz bipolar output transistors
1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel
100,000 µF power supply filter capacitance
DC Servo and relay protection circuits
AC present, channel status, high temperature indicators
Heavy-duty 24k gold-plated 5-way speaker terminals
Gold-plated RCA input jacks; ground lift switch
Auto turn-on by 12v trigger or audio signal, 12v trigger out
Continuous power output:
250 watts RMS x 2, 20 Hz – 20 kHz, 8 Ω, all channels driven
400 watts RMS x 2, 20 Hz – 20 kHz, 4 Ω, all channels driven
750 watts RMS x 1, 20 Hz – 20 kHz, 8 Ω Current capacity:
5 Hz – 100 kHz, +0/-3 dB at 1 watt Total harmonic distortion:
< 0.2 % at full power IM distortion: balanced 16 V rms

Halo A23 Amp


http://www.parasound.com/a23.php

Lucasfilm Home THX Ultra2 certified
High bias Class A/AB operation
Balanced inputs with discrete circuits and XLR connectors
Direct Coupled – no capacitors or inductors in signal path
Complementary MOSFET driver stage and JFET input stage
12 beta-matched 15 amp, 60 MHz bipolar output transistors
1 kVA encapsulated toroid power transformer with independent
secondary windings for each channel
48,000 μF power supply filter capacitance
DC Servo and relay protection circuits
AC present, channel status, high temperature displays
Heavy-duty 24k gold-plated 5-way speaker binding posts
Gold-plated RCA input jacks; loop output jacks
Auto turn-on by 12v trigger or audio signal
Rear mounted gain controls, ground lift switch
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