PARASOUND A52+

Parasound Halo A52+ er en femkanals forsterker til hjemmekinoen.
A52+ er basert på Parasound sin svært vellykkede A52, men med betydelige oppgraderinger i effekt, kretskort og leveres med siste Halo styling.
A52+ øker fra 125 til 180 watt per kanal i 8 ohm og 255 watt i 4 ohm, med alle kanaler drevet!​ Den har en større spesielt utviklet transformator for å støtte den høye effekten. Forsterkeren har fem RCA ubalanserte og fem balansert XLR innganger.
Forsterkeren har et svart anodisert ekstrudert frontpanel med nye faste aluminiums deksler som er malt og håndpolert. Disse representerer en frisk og raffinert Halo-estetikk.

The Halo A 52+ provided all the power that my speakers could handle, and did so with aplomb.

– Stereophile

Stereo and multichannel music also sounded great with the A 52+

– Sound & Vision

The new Parasound showed its superiority in more graceful smoothness in the upper midrange and treble

- Stereophile

Omtaler av Parasound Halo A52+

The Halo A 52+ provided all the power that my speakers could handle, and did so with aplomb. The soundstage was consistent with no blurring of indi­vidual voices or instrumental details. The new Parasound showed its superiority in more graceful smoothness in the upper midrange and treble, and low bass that seemed better integrated with the upper bass. Overall, I really liked Parasound’s Halo A 52+ in every way.
-Stereophile

Listening with the Halo A 52+ in my system was a pleasure. Parasound’s new five-channel amp delivers clear, dynamic sound and has plenty of headroom to handle the explosive effects in movie soundtracks. Stereo and multichannel music also sounded great with the A 52+, making it a versatile all-around performer for entry-level and advanced home theaters alike.
– Sound & Vision

The control and immediacy of the A 52+ made another track shine: “Good on the Ground” by the Vijay Iyer Sextet. In this freeform jazz cut, the saxophone and piano struggle for dominance over a driving layer of standup bass and drums. When I listened with the Parasound and MartinLogan combination, all instruments were distinctly conveyed, and the drums in particular had a muscular presentation. The standup bass seemed a bit softened in attack compared with the sound put out by my reference amp on this track, but overall I was impressed by the bass control I heard with most music.
– audiophilepure

  • Power Output – All 5 Channels Driven
    • 180 watts x 5, 8 Ω
    • 255 watts x 5, 4 Ω
  • Power Output – 2 Channels Driven
    • 225 watts x 2, 8 Ω
    • 350 watts x 2, 4 Ω
  • Power measurements parameters with 120VAC
    • 0.05% THD, RMS continuous power, full audio band (20 Hz – 20 kHz)
  • Current Capacity:
    • 45 amperes peak, per channel
  • Dynamic Headroom:
    • >1.5dBSlew Rate
    • > 130 volts per microsecond
  • Frequency Response
    • 5 Hz – 100 kHz, +0/-3 dB
    • 20 Hz – 20 kHz, +0/-0.3 dB
  • Total Harmonic Distortion (THD)
    • < 0.05 % at full power
    • < 0.03 % at typical listening levels
  • IM Distortion
    • < 0.04 %
  • TIM
    • Unmeasurable
  • Interchannel Crosstalk
    • > 78 dB at 1 kHz
    • > 63 dB at 20 kHz
  • 
Input Impedance
    • Unbalanced: 47 kΩ
    • Balanced: 94 kΩ, 47 kΩ per leg
Input
  • Sensitivity for 28.28 V Output into 8 Ω
    • Unbalanced: 1 V
    • Balanced: 1 V per leg
  • Total Gain:
    • 29 dB
S/N Ratio
    • > 112 dB, input shorted, IHF A-weighted
    • > 102 dB, input shorted, unweighted
  • Damping Factor
    • > 1100 at 20 Hz
  • DC Trigger Requirements
    • +9 Vdc to +12 Vdc, 5 mA
  • Audio Trigger Requirements
  • 2 mV – 10 mV
  • 
XLR Pin Identification
    • 1 = Ground (Shield)
    • 2 = Positive
    • 3 = Negative (Return)
  • Dimensions
    • Width: 17-1/4″ (437 mm)
    • Height without feet: 5-1/4″ (133 mm)
    • Height with feet: 5-7/8″ (149 mm)
    • Depth: 20″ (508 mm)
    • Depth with cables: 21-1/4″ (540 mm)
  • Net Weight
    • 55 lb. (25 kg)
  • Shipping Weight
    • 69 lb. (31.3 kg)
  • 
Power Requirement
    • Standby: 1 Watt
    • Idle: 125 Watts
    • Maximum: 1500 Watts
  • Power Output with all 5 channels driven:
    • 180wattsx5@8Ω
    • 255wattsx5@4Ω
  • Power Output with 2 channels driven:
    • 225wattsx2@8Ω
    • 350wattsx2@4Ω
  • 0.05% THD, RMS continuous power 20 Hz – 20 kHz, 120VAC
  • Class A/AB circuitry designed by legendary John Curl
  • Direct coupled audio path ensures the cleanest signal from input to output
  • Balanced XLR inputs with discrete circuits
  • Full power is rated all the way down to 5Hz for unrestricted low-end bass
  • Custom 1.5 kVA encapsulated toroid power transformer with independent secondary windings for each channel
  • Hand-matched JFETs for input stage
  • Hand-matched MOSFETs for driver stage
  • Beta-matched 15 amp, 60 MHz bipolar output transistors (3 pairs per channel)
  • 100,000 μF power supply filter capacitance
  • DC Servo and relay protection circuits
  • Auto turn on by audio signal or 12V trigger
  • Heavy-duty 24k gold-plated, 5-way speaker terminals
  • Heavy-duty 24k gold-plated, 5-way speaker terminals
  • Updated 3U chassis and cosmetics
  • Optional HRA-3 rack mount kit available

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