About
Ooberpad proudly presents to you the high-performing Parasound Halo A 51 Multichannel Amplifier. The Halo A 51 is a robust THX Ultra2 certified, 5-channel high bias Class A/AB amplifier that packs a punch with an optimal amount of performance that only most really high-end systems achieve, again nailing Parasound's colours to the mast when it comes to that getting the best value for money.
Warranty
1-year manufacturer's warranty
Key Features:
- 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
- 40 beta-matched 15 amp, 60 MHz bipolar output transistors
- 2.2 kVA encapsulated toroid power transformer with independent
- secondary windings for each channel
- 164,000 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
- 4u Chassis, carry handles, rack mounting adapter included
Benefits of Parasound Halo A 51 Multichannel Amplifier:
High Bias Class A/AB operation
The Halo A 51 is ideal for any higher-end multi-channel application and will drive the most demanding of loads within a system - so it is a good choice not just for the top-notch quality custom installation in-wall systems but obviously is equally sure-footed with large floor-standers as well. The root of this adaptability is primarily its 2.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel, plus the A51's high bias class A/AB operation working in tandem with its directly coupled design (there are no capacitors or inductors in the signal path).
The synergy of power and dynamism are quantifiable as the A 51 can output between 250 watts to 400 watts per channel - this is a real-world measurement as this is whilst all channels are being driven (20 Hz - 20 kHz - 60 amperes peak per channel). This high power and high current output performance deliver very flexible dynamic 'headroom', which is why the amplifier can be sublimely subtle when required, and unabatedly severe when raw power is needed.
As anticipated, the build quality and components used in the A 51 are superlative. The seriousness of the amplifier can be seen externally with the casework - as the A 51's 4u chassis is robustly constructed to the most stringent standards and also has rear-mounted carry handles (rack mounting adapter included for custom installation applications) for moving its dynamic footprint to where it’s required.
Where to buy?
Buy Parasound Halo A 51 Multichannel 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 51 Multichannel Amplifier:
| Brand & Model # | Parasound Halo A 51 |
| Continuous power output |
250 watts RMS x 5, 20 Hz - 20 kHz, 8 Ω, all channels driven 400 watts RMS x 5, 20 Hz - 20 kHz, 4 Ω, all channels driven |
| 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 |
> 78 dB at 1 kHz; > 63 dB at 20 kHz |
| Input Sensitivity | 1 V for 28.28 V, THX Reference Lev |
| Input Impedance | 47 k Ω unbalanced; 94 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 |
80 lb. / 36.28 kg |
Ooberpad proudly presents to you the high-performing Parasound Halo A 51 Multichannel Amplifier. The Halo A 51 is a robust THX Ultra2 certified, 5-channel high bias Class A/AB amplifier that packs a punch with an optimal amount of performance that only most really high-end systems achieve, again nailing Parasound's colours to the mast when it comes to that getting the best value for money.
Warranty
1-year manufacturer's warranty
Key Features:
- 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
- 40 beta-matched 15 amp, 60 MHz bipolar output transistors
- 2.2 kVA encapsulated toroid power transformer with independent
- secondary windings for each channel
- 164,000 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
- 4u Chassis, carry handles, rack mounting adapter included
Benefits of Parasound Halo A 51 Multichannel Amplifier:
High Bias Class A/AB operation
The Halo A 51 is ideal for any higher-end multi-channel application and will drive the most demanding of loads within a system - so it is a good choice not just for the top-notch quality custom installation in-wall systems but obviously is equally sure-footed with large floor-standers as well. The root of this adaptability is primarily its 2.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel, plus the A51's high bias class A/AB operation working in tandem with its directly coupled design (there are no capacitors or inductors in the signal path).
The synergy of power and dynamism are quantifiable as the A 51 can output between 250 watts to 400 watts per channel - this is a real-world measurement as this is whilst all channels are being driven (20 Hz - 20 kHz - 60 amperes peak per channel). This high power and high current output performance deliver very flexible dynamic 'headroom', which is why the amplifier can be sublimely subtle when required, and unabatedly severe when raw power is needed.
As anticipated, the build quality and components used in the A 51 are superlative. The seriousness of the amplifier can be seen externally with the casework - as the A 51's 4u chassis is robustly constructed to the most stringent standards and also has rear-mounted carry handles (rack mounting adapter included for custom installation applications) for moving its dynamic footprint to where it’s required.
Where to buy?
Buy Parasound Halo A 51 Multichannel 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 51 Multichannel Amplifier:
| Brand & Model # | Parasound Halo A 51 |
| Continuous power output |
250 watts RMS x 5, 20 Hz - 20 kHz, 8 Ω, all channels driven 400 watts RMS x 5, 20 Hz - 20 kHz, 4 Ω, all channels driven |
| 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 |
> 78 dB at 1 kHz; > 63 dB at 20 kHz |
| Input Sensitivity | 1 V for 28.28 V, THX Reference Lev |
| Input Impedance | 47 k Ω unbalanced; 94 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 |
80 lb. / 36.28 kg |
Parasound Halo A 51 Multichannel Amplifier
Country of Origin: Usa
