Parasound Halo A52+
Parasound Halo A52+ er en 5-kanals 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 aluminiumsdeksler som er malt og håndpolert. Disse representerer en frisk og raffinert Halo-estetikk.
Omtaler av Halo A52+:
The Halo A 52+ provided all the power that my speakers could handle, and did so with aplomb.
-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
Egenskaper:
- 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
Spesifikasjoner
Utgangseffekt alle 5 kanaler i drift 180 watt x 5, 8 Ω
255 watt x 5, 4 Ω
Utgangseffekt 2 kanaler i drift 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)
Strømkapasitet 45A peak per kanal Dynamic Headroom >1.5dBSlew Rate
> 130 volts per microsecond
Frekvensrespons 5 Hz – 100 kHz, +0/-3 dB
20 Hz – 20 kHz, +0/-0.3 dB
Total harmonisk forvrengning < 0.05 % at full power
< 0.03 % at typical listening levels
IM forvrengning < 0.04 %
TIM Unmeasurable
Overhøring mellom kanalene > 78 dB at 1 kHz
> 63 dB at 20 kHz
Inngangsimpedans 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
Dempingsfaktor > 1100 at 20 Hz
DC Trigger Requirements +9 Vdc to +12 Vdc, 5 mA
Audio Trigger Requirements
- 2 mV – 10 mV
- XLR Pin Identification
- Ground (Shield)
- Positive
- Negative (Return)
Power Requirement Standby: 1 Watt
tomgang: 125 Watt
Maximum: 1500 Watt
Størrelse og vekt
Bredde 43.7 cm Høyde 13.3 (14.9 med føtter) cm Dybde 50.8 (54 med kabler) cm Vekt 25 kg