ParasoundA-21usedParasound A-21 Black 250w  into 8 !((( PENDING SALE )):Parasound Black HALO Reference Series Balanced A-21 Amplifier Halo: We have opportunities on the new improved Halo A-21+ and looking for clients wanting to trade in and UPGRA...1295.00

Parasound A-21 Black 250w into 8 ! [Expired]

no longer for sale


Parasound Black HALO Reference Series Balanced A-21 Amplifier Halo:

We have opportunities on the new improved Halo A-21+ and looking for clients wanting to trade in and UPGRADE !

2105 × 900

2684 × 1200

Weinhart Design's best selling amplifier in our history both at Weinhart Design & my old company Ambrosia Audio & Video and highly RECOMMENDED by us and virtually everyone in the know.

Now Parasound induced the newer version the Parasound A-21+ now300 watts stereo and $3,495. If your interested, it sounds even better and is adds 50 watts into 8 ohms making both the earlier A-21 at a lower cost and the newer improved + model a Stellar deal !

In excellent order but a small blemish on the face plate (see pictures resr of the condition exceeds 8/10 as new).

Comes in a Parasound A-21+ factory Box (essentially the same factory box.

If you are not working with a authorized Parasound dealer it is best to call David in Los Angeles for your best offer from Weinhart Design Inc. (we do not quote new items on line and after all we both have questions).

  • 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
  • 4u Chassis, carry handles, rack mounting adapter included

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

110V - 120V

17-1/2" w x 7-5/8" h x 20" d, 7" h without feet

Net weight: 60 lb.

Stereo&Video (May, 2014)
"This amazing group of equipment best demonstrates the audio industry's present state of the art.", October 2005
"Out of the box the A 21 sounds wonderful. I sampled several Red Book CD's of different recording quality and musical genera's and quickly came to the realization that the A 21 was indeed a very special amplifier, and I could not wait to begin the serious evaluation after burn-in." - Shane Mattson

Audioholics, December 2004
Product of the Year Award 2004 - Two-Channel Power Amplifier
"For those who desire the power of a Mack truck with the finesse of a Mercedes Benz in a two-channel amplifier, look no further than Parasound." "With the assortment of unbalanced and balanced inputs, triggered output, and ground lift option no stones were left unturned with this well built, attractive design."

Audioholics, October 2004
"The A 21 and A 51 amplifiers are both loaded with usable features above and beyond most other amplifiers in today's market." "I cranked the volume way up and found myself free of that inhibiting audio alarm in my head that nags at me to turn it back down. Using the Parasound amp allowed my speakers to portray every aspect that I had come to expect without adding any noticeable sign of distortion or flaw." "The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." Overall Rating: 5/5 Stars - Ken Stein and Steve Dellasala

Luister (Netherlands), November 2003 (Norway), July 2003

Feel free to call with questions, I can be reached in my Los Angeles Audio & Video showroom weekdays (11-4PM) 310-472-8880 or after hours and weekends (10-10) on my cell 310-927-2260 or e-mail me directly at: [email protected]

Contact:  David Weinhart best to CALL with questions in Los Angeles Showroom from 11-4PM @ 310-472-8880 or my cell after hours and weekends from 10-10PM @ 
310-927-2260 or e-mail me directly at [email protected]     

For more information, visit my NEW & IMPROVED web site @ for great deals!

Weinhart Design has lots of other items new and used and if you’re in Los Angeles or 
visiting please accept my invitation to experience our World Class Audio Showroom (BY APPOINTMENT only).

We are always interested in purchasing quality Audio and Video items, ESTATES & LP 
collections and most quality trades are welcome. 

All sales out of California are California State Sales Tax exempt. California 9.5% State Sales Tax applies only for items picked up or shipped to a California address. 

We accept payments by Bank Wire Transfers without fees and is the only form of payment on all sales out of the U.S. and Canada. We prefer this method of payment, which also makes shipping to addresses other than billing agreeable. VISA,MasterCard and Paypal are gladly accepted within the U.S. and Canada as long as the charge is approved and shipping to the billing address on record and 
adds 3% to cover costs. 

Please call me directly in my world class showroom in Los Angeles weekdays 11-4PM @ 310-472-8880 or on my cell including weekends from 10-10PM @ 310-927-2260 and I can answer your questions and help you with all of your new and pre owned needs. 

   Making Audio Systems better 

          one system at a time,

                   David Weinhart 
                Weinhart Design, Inc. 

                      President & CEO 

           e: [email protected] 

          The Audio and Video Expert 
      2337 Roscomare Road, Studio #1 
       Los Angeles, California 90077

          Showroom) 310-472-8880 
                Cell) 310-927-2260

davidamb member since February 2006

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