FS: Parasound A23 amplifier
markmarc
Posts: 2,309
Sounds crazy but I am selling my minty Parasound A23 power amplifier. Just too much gear and with a few years planned delay in purchasing a summer home, I’d rather move gear on to others who will use it rather than have it sit in storage. The A23 is a John Curl design, and IMHO, second only to Nelson Pass in amplifier design. The A23 comes in its original box. New price $1299, I’m selling for $750 plus shipping. Payment via PayPal. Shipping from 97874, box measurements are: 22x22x10, weight 37lbs.
* • Circuitry designed by legendary John Curl
* • 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
* • 40,000 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
Continuous power output:
125 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, both channels driven
225 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, both channels driven
400 watts RMS x 1, 20 Hz - 20 kHz, 8 Ω Current capacity:
45 amperes peak per channel Power bandwidth:
5 Hz - 100 kHz, +0/-3 dB at 1 watt Total harmonic distortion:
< 0.06 % 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 S/N ratio:
112 dB, input shorted, IHF A-weighted Damping factor:
> 800 at 20 Hz Voltage:
Switchable for 110V - 120V or 220V - 240V Dimensions:
17-1/4" w x 4-1/8" h x 13-1/4" d, 3-5/8 " h without feet Net weight: 28 lb.
* • Circuitry designed by legendary John Curl
* • 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
* • 40,000 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
Continuous power output:
125 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, both channels driven
225 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, both channels driven
400 watts RMS x 1, 20 Hz - 20 kHz, 8 Ω Current capacity:
45 amperes peak per channel Power bandwidth:
5 Hz - 100 kHz, +0/-3 dB at 1 watt Total harmonic distortion:
< 0.06 % 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 S/N ratio:
112 dB, input shorted, IHF A-weighted Damping factor:
> 800 at 20 Hz Voltage:
Switchable for 110V - 120V or 220V - 240V Dimensions:
17-1/4" w x 4-1/8" h x 13-1/4" d, 3-5/8 " h without feet Net weight: 28 lb.
Review Site_ (((AudioPursuit)))
Founder/Publisher Affordable$$Audio 2006-13.
Former Staff Member TONEAudio
2 Ch. System
Amplifiers: Parasound Halo P6 pre, Vista Audio i34, Peachtree amp500, Adcom GFP-565 GFA-535ii, 545ii, 555ii
Digital: SimAudio HAD230 DAC, iMac 20in/Amarra,
Speakers: Paradigm Performa F75, Magnepan .7, Totem Model 1's, ACI Emerald XL, Celestion Si Stands. Totem Dreamcatcher sub
Analog: Technics SL-J2 w/Pickering 3000D, SimAudio LP5.3 phono pre
Cable/Wires: Cardas, AudioArt, Shunyata Venom 3
Founder/Publisher Affordable$$Audio 2006-13.
Former Staff Member TONEAudio
2 Ch. System
Amplifiers: Parasound Halo P6 pre, Vista Audio i34, Peachtree amp500, Adcom GFP-565 GFA-535ii, 545ii, 555ii
Digital: SimAudio HAD230 DAC, iMac 20in/Amarra,
Speakers: Paradigm Performa F75, Magnepan .7, Totem Model 1's, ACI Emerald XL, Celestion Si Stands. Totem Dreamcatcher sub
Analog: Technics SL-J2 w/Pickering 3000D, SimAudio LP5.3 phono pre
Cable/Wires: Cardas, AudioArt, Shunyata Venom 3
Comments
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Price Drop $725Review Site_ (((AudioPursuit)))
Founder/Publisher Affordable$$Audio 2006-13.
Former Staff Member TONEAudio
2 Ch. System
Amplifiers: Parasound Halo P6 pre, Vista Audio i34, Peachtree amp500, Adcom GFP-565 GFA-535ii, 545ii, 555ii
Digital: SimAudio HAD230 DAC, iMac 20in/Amarra,
Speakers: Paradigm Performa F75, Magnepan .7, Totem Model 1's, ACI Emerald XL, Celestion Si Stands. Totem Dreamcatcher sub
Analog: Technics SL-J2 w/Pickering 3000D, SimAudio LP5.3 phono pre
Cable/Wires: Cardas, AudioArt, Shunyata Venom 3 -
Great amp for the money and to start your 2 channel journey with separates. GLWS!
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Moved to AudiogonReview Site_ (((AudioPursuit)))
Founder/Publisher Affordable$$Audio 2006-13.
Former Staff Member TONEAudio
2 Ch. System
Amplifiers: Parasound Halo P6 pre, Vista Audio i34, Peachtree amp500, Adcom GFP-565 GFA-535ii, 545ii, 555ii
Digital: SimAudio HAD230 DAC, iMac 20in/Amarra,
Speakers: Paradigm Performa F75, Magnepan .7, Totem Model 1's, ACI Emerald XL, Celestion Si Stands. Totem Dreamcatcher sub
Analog: Technics SL-J2 w/Pickering 3000D, SimAudio LP5.3 phono pre
Cable/Wires: Cardas, AudioArt, Shunyata Venom 3 -
SOLDReview Site_ (((AudioPursuit)))
Founder/Publisher Affordable$$Audio 2006-13.
Former Staff Member TONEAudio
2 Ch. System
Amplifiers: Parasound Halo P6 pre, Vista Audio i34, Peachtree amp500, Adcom GFP-565 GFA-535ii, 545ii, 555ii
Digital: SimAudio HAD230 DAC, iMac 20in/Amarra,
Speakers: Paradigm Performa F75, Magnepan .7, Totem Model 1's, ACI Emerald XL, Celestion Si Stands. Totem Dreamcatcher sub
Analog: Technics SL-J2 w/Pickering 3000D, SimAudio LP5.3 phono pre
Cable/Wires: Cardas, AudioArt, Shunyata Venom 3
