About
From the house of Ooberpad arrives the power-packed Parasound Halo A 23+ Stereo Power Amplifier. Meet the Halo A 23+ and enjoy performance upgrades for a cleaner, barely perceptible distortion sound, revised front panel cosmetics, and a revised rear panel layout offering enhanced features, too. Parasound transports listeners to a delightful aural experience, besides that its halo now shines even brighter than ever with its brand new version of the Halo A 23 two-channel power amplifier.
Warranty
1-year manufacturer's warranty
Key Features:
- Circuitry designed by legendary John Curl
- High bias Class A/AB operation
- 45 amperes peak current per channel
- Stable with speaker impedance dips below 2 Ω
- Balanced inputs with discrete circuits
- Heavy-duty 24k gold-plated 5-way speaker binding posts
- Gold-plated RCA input & loop output jacks
- Direct-coupled signal path, no capacitors or inductors
- DC Servo and relay protection circuits
- AC turn-on inrush surge protection with relay bypass
- JFET input stage, MOSFET driver stage
- 12 beta-matched 15 ampere, 60 MHz bipolar output transistors
- 1.1 kVA shielded toroid transformer w/ independent windings for each channel
- Independent power supplies for input stage, driver stage and output stage
- 54,400 µF filter capacitors for output stages
- Full power is rated all the way down to 5Hz for unrestricted low-end bass
- Harris hyper-fast soft-recovery bridge diode rectifiers
- Automatic turn-on by 12 V trigger or audio sensing
- 2 rack space chassis with rear carry handles
- Rack mount hardware available separately
Benefits of Parasound Halo A 23+ Stereo Power Amplifier:
Impressive Performance Upgrades
The performance of a power amplifier is significantly contingent upon the quality of its power supply, and Parasound went the extra mile with the A 23+, which boasts a 10% to 15% larger main power transformer compared to the previous model A 23. Transformer size has been increased from 1.0 to 1.1kVA, and the filter capacitance increases 20-30% from 40,000 uF for the A 23 to 54,400 uF for the new A 23+. You'll experience the pros of these upgrades as the A23+ ensures there is imperceptible distortion at full power. Other performance upgrades comprise of tweaked input circuits for better crosstalk specs (70 dB at 20 kHz compared to 63 dB) and upgraded internal gold on gold audio connections, consequently leading to a cleaner signal path that's also more trustworthy.
Upgraded Rear Panel Features and Layout with Revised Halo Front Panel Look
The rear panel of the A 23+ has been revised in terms of layout and some breakthrough features. It boasts upgraded speaker terminals, using identical terminals to the HINT 6 integrated amp, a new jack/terminal layout with more space and more clear text/labels, and a master "Vacation" AC switch. The 2.5mm trigger jacks of the A 23 have been replaced with 3.5mm jacks, and the audio trigger circuit has been updated for better low signal reliability.
The Halo series has always upheld its reputation for its eye-catching aesthetics, and the look is further enhanced. New front panel cosmetics include slim metal end caps replacing wider plastic end caps, also an added gold metallic accent stripe along with the end cap, gold feet now on black units, and an engraved metal "Parasound" badge replacing the red "P."
Where to buy?
Buy Parasound Halo A 23+ Stereo Power Amplifier online at the best price in Mumbai, Delhi, Bangalore, Chennai and all across India. Enjoy expert, prompt and courteous customer service from the Ooberpad.com team. We will help you choose better and will give you all the support you need to take the right buying decision in India.
Technical Specifications of Parasound Halo A 23+ Stereo Power Amplifier:
| Brand & Model # | Parasound Halo A 23+ |
| Power Output – Stereo Mode (0.06% THD) |
160 watts x 2, 8 Ω both channels driven 240 watts x 2, 4 Ω both channels driven |
| Power Output – Stereo Mode (0.9% THD) | 210 watts x 2, 8 Ω both channels driven 300 watts x 2, 4 Ω both channels driven |
| Power Output – Bridged Mode (0.06% THD) | 500 watts x 1, 8 Ω Bridged 4 Ω operation is not recommended |
| Power Output – Bridged Mode (0.9% THD) | 600 watts x 1, 8 Ω Bridged 4 Ω operation is not recommended *All Power measurement are at 120 VAC, RMS continuous power, full audio band (20 Hz - 20 kHz) |
| Current Capacity |
45 amps peak per channel |
| Slew Rate | > 130 V/µsecond |
| Frequency Response | 5 Hz - 100 kHz, +0/-3 dB 20 Hz - 20 kHz, +0/-0.25 dB |
| Total Harmonic Distortion (THD) |
< 0.06 % at full power < 0.03 % at typical listening levels |
| IM Distortion | < 0.04 % |
| TIM |
Unmeasurable |
| Dynamic headroom | > 1.5 dB |
| Interchannel crosstalk |
> 85 dB at 1 kHz > 70 dB at 20 kHz |
| Input Sensitivity for 28.28 V Out (8 Ω Load) |
Unbalanced: 1 V Balanced: 1 V per leg |
| Input Impedance |
Unbalanced: 33 kΩ Balanced: 66 kΩ,(33 kΩ per leg) |
| Total Gain | 29 dB |
| S/N ratio |
> 112 dB, input shorted, IHF A-weighted > 107 dB, input shorted, unweighted |
| Damping Factor |
> 800 at 20 Hz |
| DC Trigger Requirements | +9 Vdc to +12 Vdc, 5 mA |
| Auto Trigger Requirements | 2 mV - 10 mV |
| XLR Pin Identification | 1 = Ground (Shield) 2 = Positive 3 = Negative (Return) |
| Dimensions |
Width: 17-1/4" (437 mm) Depth: 15"-1/4" (388 mm) Depth, with cables 17" (432 mm) Height, with feet: 4-1/8" (105 mm) Height, without feet: 3-1/2" (89 mm), 2U |
| Net Weight |
27 lb. (12.2 kg) |
| Power requirements |
Standby: <1 Watt Idle (no music playing): 75 Watts Typical Listening levels: 125 Watts Maximum: 800 Watts 110-125 VAC 60 Hz or 220-250 VAC 50 Hz AC mains voltage is set on rear panel |
From the house of Ooberpad arrives the power-packed Parasound Halo A 23+ Stereo Power Amplifier. Meet the Halo A 23+ and enjoy performance upgrades for a cleaner, barely perceptible distortion sound, revised front panel cosmetics, and a revised rear panel layout offering enhanced features, too. Parasound transports listeners to a delightful aural experience, besides that its halo now shines even brighter than ever with its brand new version of the Halo A 23 two-channel power amplifier.
Warranty
1-year manufacturer's warranty
Key Features:
- Circuitry designed by legendary John Curl
- High bias Class A/AB operation
- 45 amperes peak current per channel
- Stable with speaker impedance dips below 2 Ω
- Balanced inputs with discrete circuits
- Heavy-duty 24k gold-plated 5-way speaker binding posts
- Gold-plated RCA input & loop output jacks
- Direct-coupled signal path, no capacitors or inductors
- DC Servo and relay protection circuits
- AC turn-on inrush surge protection with relay bypass
- JFET input stage, MOSFET driver stage
- 12 beta-matched 15 ampere, 60 MHz bipolar output transistors
- 1.1 kVA shielded toroid transformer w/ independent windings for each channel
- Independent power supplies for input stage, driver stage and output stage
- 54,400 µF filter capacitors for output stages
- Full power is rated all the way down to 5Hz for unrestricted low-end bass
- Harris hyper-fast soft-recovery bridge diode rectifiers
- Automatic turn-on by 12 V trigger or audio sensing
- 2 rack space chassis with rear carry handles
- Rack mount hardware available separately
Benefits of Parasound Halo A 23+ Stereo Power Amplifier:
Impressive Performance Upgrades
The performance of a power amplifier is significantly contingent upon the quality of its power supply, and Parasound went the extra mile with the A 23+, which boasts a 10% to 15% larger main power transformer compared to the previous model A 23. Transformer size has been increased from 1.0 to 1.1kVA, and the filter capacitance increases 20-30% from 40,000 uF for the A 23 to 54,400 uF for the new A 23+. You'll experience the pros of these upgrades as the A23+ ensures there is imperceptible distortion at full power. Other performance upgrades comprise of tweaked input circuits for better crosstalk specs (70 dB at 20 kHz compared to 63 dB) and upgraded internal gold on gold audio connections, consequently leading to a cleaner signal path that's also more trustworthy.
Upgraded Rear Panel Features and Layout with Revised Halo Front Panel Look
The rear panel of the A 23+ has been revised in terms of layout and some breakthrough features. It boasts upgraded speaker terminals, using identical terminals to the HINT 6 integrated amp, a new jack/terminal layout with more space and more clear text/labels, and a master "Vacation" AC switch. The 2.5mm trigger jacks of the A 23 have been replaced with 3.5mm jacks, and the audio trigger circuit has been updated for better low signal reliability.
The Halo series has always upheld its reputation for its eye-catching aesthetics, and the look is further enhanced. New front panel cosmetics include slim metal end caps replacing wider plastic end caps, also an added gold metallic accent stripe along with the end cap, gold feet now on black units, and an engraved metal "Parasound" badge replacing the red "P."
Where to buy?
Buy Parasound Halo A 23+ Stereo Power Amplifier online at the best price in Mumbai, Delhi, Bangalore, Chennai and all across India. Enjoy expert, prompt and courteous customer service from the Ooberpad.com team. We will help you choose better and will give you all the support you need to take the right buying decision in India.
Technical Specifications of Parasound Halo A 23+ Stereo Power Amplifier:
| Brand & Model # | Parasound Halo A 23+ |
| Power Output – Stereo Mode (0.06% THD) |
160 watts x 2, 8 Ω both channels driven 240 watts x 2, 4 Ω both channels driven |
| Power Output – Stereo Mode (0.9% THD) | 210 watts x 2, 8 Ω both channels driven 300 watts x 2, 4 Ω both channels driven |
| Power Output – Bridged Mode (0.06% THD) | 500 watts x 1, 8 Ω Bridged 4 Ω operation is not recommended |
| Power Output – Bridged Mode (0.9% THD) | 600 watts x 1, 8 Ω Bridged 4 Ω operation is not recommended *All Power measurement are at 120 VAC, RMS continuous power, full audio band (20 Hz - 20 kHz) |
| Current Capacity |
45 amps peak per channel |
| Slew Rate | > 130 V/µsecond |
| Frequency Response | 5 Hz - 100 kHz, +0/-3 dB 20 Hz - 20 kHz, +0/-0.25 dB |
| Total Harmonic Distortion (THD) |
< 0.06 % at full power < 0.03 % at typical listening levels |
| IM Distortion | < 0.04 % |
| TIM |
Unmeasurable |
| Dynamic headroom | > 1.5 dB |
| Interchannel crosstalk |
> 85 dB at 1 kHz > 70 dB at 20 kHz |
| Input Sensitivity for 28.28 V Out (8 Ω Load) |
Unbalanced: 1 V Balanced: 1 V per leg |
| Input Impedance |
Unbalanced: 33 kΩ Balanced: 66 kΩ,(33 kΩ per leg) |
| Total Gain | 29 dB |
| S/N ratio |
> 112 dB, input shorted, IHF A-weighted > 107 dB, input shorted, unweighted |
| Damping Factor |
> 800 at 20 Hz |
| DC Trigger Requirements | +9 Vdc to +12 Vdc, 5 mA |
| Auto Trigger Requirements | 2 mV - 10 mV |
| XLR Pin Identification | 1 = Ground (Shield) 2 = Positive 3 = Negative (Return) |
| Dimensions |
Width: 17-1/4" (437 mm) Depth: 15"-1/4" (388 mm) Depth, with cables 17" (432 mm) Height, with feet: 4-1/8" (105 mm) Height, without feet: 3-1/2" (89 mm), 2U |
| Net Weight |
27 lb. (12.2 kg) |
| Power requirements |
Standby: <1 Watt Idle (no music playing): 75 Watts Typical Listening levels: 125 Watts Maximum: 800 Watts 110-125 VAC 60 Hz or 220-250 VAC 50 Hz AC mains voltage is set on rear panel |
Parasound Halo A 23+ Stereo Power Amplifier
Country of Origin: Usa
