Parasound Halo A-21
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Condition | |
Payment methods | |
Ships from | Rochelle Park, NJ, 07662 |
Ships to | United States |
Package dimensions | 28.0" × 27.0" × 14.0" (78.0 lbs.) |
Shipping carrier | FedEx |
Shipping cost | Log in to see price |
Original accessories | Box, Manual |
Average | Research Pricing |
Parasound HALO A21 2 Channel
High Current Power Amp
We have a client who is doing massive
upgrade to his system and I am selling his 2 amps for him (which are listed under
separate listings).
This amplifier has a small nick on the top
edge toward the right side which you can see in one of the pictures which is barely noticeable but the fact that it is there is the only reason why this unit is rated 7/10.
Circuitry designed by
legendary John Curl
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
88,000 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:
60 amperes peak per channel
Power bandwidth:
5 Hz - 100 kHz, +0/-3 dB at 1 watt
Total harmonic distortion:
< 0.2 % at full power
IM distortion: balanced 16 V rms
< 0.04 %
Slew rate:
> 130 V/µsecond
Dynamic headroom:
> 1.5 dB
Interchannel crosstalk:
> 80 dB at 1 kHz;
> 63 dB at 20 kHz
Input sensitivity:
1 V for 28.28 V, THX Reference LeveL
Input impedance:
33 k Ω unbalanced; 66 k Ω balanced
S/N ratio:
112 dB, input shorted, IHF A-weighted
Damping factor:
> 1100 at 20 Hz
Voltage:
110V - 120V
Dimensions:
17-1/2" w x 7-5/8" h x 20" d, 7" h without feet
Net weight: 60 lb.
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