FS: Parasound A21 and Bryston 4B3 Power Amplifiers

sgmsmg

Up for sale are 2 amplifiers I am no longer using due to recent upgrades.

Parasound A21 (Black)
9/10 condition purchased from an authorized dealer in December of 2016. Used in both a 2 channel setup for a couple years and then for the L/R channels of my HT setup. There are no cosmetic flaws that I could find and it functions perfectly.
Asking $1500 plus shipping/fees

Bryston 4B3(Black)
8/10 condition (see description below)
While taking pictures I found 3 different 1mm indentations: left top edge of front panel and 2 around the front left top plate screw. The anodized coating in these locations is intact so it may have been a manufacture flaw (see last picture).
I am the second owner of this amp and I purchased it from the original owner in 2017.
It has functioned flawlessly since purchase and I have used it to drive my previous speakers: GoldenEar Triton Ones and also my current speakers: GoldenEar Triton Reference. The amp is the 17" version without handles and the LEDs are green but can be changed to blue with an internal jumper change on one of the PCBs.
The only issue is that I did not know about the Bryston warranty policy requiring the original sales receipt. As such I do not have it and was not ably to obtain it from the original seller.
Asking $3500 plus shipping/fees

Here are some pictures. More available upon request.
Parasound A21






Bryston 4B3







Parasound A21 Specs:
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.

Bryston 4B3 Specs:
Power output: 300 watts per channel at 8 ohms; 500 watts at 4 ohms; bridged mono 900 watts per channel at 8 ohms
Gain: High 29 dB at 28.28 V/V; Low 23 dB at 14.14 V/V
Sensitivity: High: 1.0V, 100W; High: 1.7V, 300W; Low: 2.0V, 100W; Low: 3.5V, 300W
Input Impedance, Individual Mode: Single Ended ≈60k ohm; Balanced + ≈60k ohm; Balanced - ≈12.5k ohm;
Input Impedance, Bridged Mode: Single Ended ≈10k ohm; Balanced + ≈10k ohm; Balanced - ≈10k ohm;
IMD: ≤0.005%, Typ. ≤0.002%
Noise (input shorted 20Hz to 20kHz): High: 29 dB, <0110dB (-75 dBu); Low: 23 dB, <0113dB (-78 dBu)
Damping: 20 Hz, 8 Ohms, >500
Power consumption (watts): Standby: <0.5; Idle: ≤70; 2Ch. 35W 8 ohm: 550; 2 Ch. 300W 8 ohm: 1000; Bridged: 900W 8 ohm: 1700
Dimensions: 17" or 19" wide, 6.3" high, 16.2" deep (add 1.6" depth to C-Series 19"-wide model for front-mounted handles)
Weight: 63 lbs.

steveinaz

That's an excellent deal on that Parasound.

sgmsmg

Forgot to list my location. These amps are located in Beaverton, Oregon 97003.

Clipdat

Do you have original box for the Bryston?

sgmsmg

Yes I have the original box/packing materials for both amps. The Bryston only comes with a single box but the Parasound has a double box. I can try to find another box for the Bryston to add another layer of protection.

Willow

Dems er nice amps. GLWTS

gyosa

I can vouch for how Stellar the A21 is .....

GLWTS ...

Bk

sgmsmg

If anyone is interested in either of these reach out to me and maybe we can make a deal. I will probably be consigning them in the next couple of days.

gudnoyez

Parasound packs them good my A31 shipped in its factory double box from Adio Advisor. I wish I needed a A21 great amp priced nicely good luck with the sale of both those amps.

steveinaz

Can't believe no one has grabbed that A21.

BinKY188_5

Would that A21 be a good match for SDA SRS? Common Ground?

oldrocker

Very good amp, excellent price for all that power.

gyosa

He!! Yeah !!

I’m using one with 1c’s ......
Plenty of current .....
Seriously, it really is a great amp ...

When I’m in need of another amp - I’ll be buying another one ....

Bk

BinKY188_5 wrote: »

Would that A21 be a good match for SDA SRS? Common Ground?

sgmsmg

The Parasound A21 has been sold to Mike Reeter

teekay0007

Nice get, Mike!

Congrats guys!

BinKY188_5

Thanks Mike for keeping me from spending money that I really shouldn't. Congrats on the purchase.

Mike Reeter

Just wanted to note that I received the A21 today from Patrick. The Amp is EXACTLY as described, if not better.

He promptly shipped it immediately after we came to terms, and it arrived in Pristine Condition.

If anyone is remotely interested in the Bryston that Patrick has for sale, I recommend reaching out to him. I can vouch for the man with utmost confidence.

sgmsmg

Mike Reeter wrote: »

Just wanted to note that I received the A21 today from Patrick. The Amp is EXACTLY as described, if not better.

He promptly shipped it immediately after we came to terms, and it arrived in Pristine Condition.

If anyone is remotely interested in the Bryston that Patrick has for sale, I recommend reaching out to him. I can vouch for the man with utmost confidence.

Thanks for the praise Mike! Glad you are happy! Enjoy!

verb

Oh dear.
There is an A21 near me. 33k ohm input impedance. And gain adjustment knobs on the back. Should play nice with my Joule! Oh dear.
https://www.usaudiomart.com/details/649602804-parasound-a21/

jumpindick

verb wrote: »

Oh dear.
There is an A21 near me. 33k ohm input impedance. And gain adjustment knobs on the back. Should play nice with my Joule! Oh dear.
https://www.usaudiomart.com/details/649602804-parasound-a21/

Looks in great shape as well. Wouldn't go wrong with it at all, IMO.

Mike Reeter

verb wrote: »

Oh dear.
There is an A21 near me. 33k ohm input impedance. And gain adjustment knobs on the back. Should play nice with my Joule! Oh dear.
https://www.usaudiomart.com/details/649602804-parasound-a21/

Dave, My new A21 is telling me what my SDA's are capable of. I've been reading on this Forum for years about how good a matchup the A21 and SDA's are. Everyone has been RIGHT.

I can't imagine that you would be sorry.

gyosa

I’m using an A21 with my 1c’s ....
I likey

Bk

Dr_Wu

CRS-SDA+4.1TL loves the A21. If I'm not mistaken, Skip and Audio Advisor still have some of these NIB at a nice price.

verb

Mike Reeter wrote: »

verb wrote: »

Oh dear.
There is an A21 near me. 33k ohm input impedance. And gain adjustment knobs on the back. Should play nice with my Joule! Oh dear.
https://www.usaudiomart.com/details/649602804-parasound-a21/

Dave, My new A21 is telling me what my SDA's are capable of. I've been reading on this Forum for years about how good a matchup the A21 and SDA's are. Everyone has been RIGHT.

I can't imagine that you would be sorry.

I need another amp like a hole in my head. Wait, yes I do need another amp, to match the hole in my head!

Aw man, Michigan is locked down for non-essential travel. Wait, this could be essential.

Aw man, but the Mrs is home all day long now. Foiled again!