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Oppo HA-1 - 17817

Oppo HA-1

1.499,00€
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Amplificador de auriculares con entradas digitales , el amplificador de auriculares HA-1 de OPPO está basado en nuestros exitosos reproductores de Blu-ray BDP-95 y BDP-105 para audiófilos.

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Características

El amplificador de auriculares HA-1 de OPPO está basado en nuestros exitosos reproductores de Blu-ray BDP-95 y BDP-105 para audiófilos. BDP-95 y 105 han sido seleccionados como "Equipos recomendados" por prestigiosas publicaciones como Stereophile y The Absolute Sound.

Los bancos de pruebas indican el enorme rendimiento de estos reproductores manifestado que se acercan al límite medible por los instrumentos de análisis de audio. Basándose en el probado diseño del circuito de estos premiados reproductores, el HA-1 combina un amplificador de potencia con el rendimiento de un DAC ESS 9018 Sabre32 Reference.

El HA-1 es un amplificador de auriculares de alto rendimiento, con DAC USB asíncrono, preamplificador estéreo, un dock de audio digital para dispositivos móviles, y Bluetooth.

Su diseño y sus numerosas entradas garantizan el mejor rendimiento y versatilidad.

La etapa analógica del HA-1 es un diseño totalmente balanceado con un énfasis en mantener la señal de audio en el dominio analógico desde el momento que sale del DAC. El HA-1 posee un potente transformador toroide de potencia. Reguladores de potencia lineales y filtros con condensadores hechos a medida aseguran que el amplificador de auriculares tiene una fuente de energía limpia con bastante energía de reserva.
La sección de amplificación de potencia usa componentes discretos y emparejados para asegurar una total simetría.

Un control de volumen motorizado y de precisión permite tanto el ajuste manual como a través del mando a distancia mientras se mantiene el audio puramente analógico.

Los usuarios tienen la opción de usar el XLR balanceado de 4 pines o el conector de auriculares tradicional de cuarto de pulgada.
Entradas y salidas analógicas de nivel de línea se proporcionan tanto con RCA como con conectores XLR balanceados.
HA-1 Incorpora circuitos de supervisión y protección contra cortocircuitos, sobrecarga o desajuste de DC que podría generar un rendimiento poco satisfactorio.


El HA-1 está especialmente indicado para el audio digital de alta resolución. Sus entradas digitales incluyen coaxial, óptica, balanceada AES / EBU y un DAC USB asíncrono que soporta los formatos PCM y DSD. El mismo Reference DAC ESS 9018 Sabre32 y la etapa de salida utilizada en nuestros reproductores Blu-ray para audiófilos aseguran un ruido extremadamente bajo y baja distorsión.

El HA-1 es muy fácil conectarlo a un ordenador vía USB y disfrutar de la música sin jitter usando su software de reproducción favorito.

Características

General
Dimensiones (W x H x D) 254 x 80 x 333 mm
Peso 5.9 Kg

Entradas XLR
Input Impedance 15k ohm
Maximum Input Level 18 Vrms, +27.3 dBu (0 dBu = 0.775 Vrms)

Entradas RCA Audio Estéreo
Input Impedance 10k ohm
Maximum Input Level 9 Vrms, +21.3 dBu (0 dBu = 0.775 Vrms)

Coaxial, Optical, AES/EBU Digital Inputs
Formato de entrada Stereo PCM
Frecuencias de muestreo 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

Entrada de Audio USB DAC (USB B)
Formato de entrada Stereo PCM, Stereo DSD (DoP v1.1 or native)
Frecuencias de muestro PCM 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz
Frecuencias de muestro DSD 2.8224 MHz (DSD64), 5.6448 MHz (DSD128), 11.2896 MHz (DSD256, solo modo nativo)

Mobile USB Audio Input (USB A)
Formato de entrada Stereo PCM
PCM Sampling Frequencies 44.1 kHz, 48 kHz


Features

Discrete Class A Amplifier - A Class A amplifier conducts signal over the entire range of the input signal cycle. The output transistors are biased to operate in their most linear range, and there is no crossover distortion caused by switching the signal between two push-pull devices. The HA-1's power amplification circuit for the headphones is Class A built with discrete transistors. The discrete design allows us to hand-pick and match the best parts to build the HA-1.

Fully Balanced Design – The internal analog audio signal path of the HA-1 is fully balanced. For digital audio, the signal runs in balanced mode all the way from the DAC to the output jacks. Balanced analog input is kept intact, and single-ended input is converted to balanced at the input buffer. All single-ended outputs are derived from the balanced signal as well. The balanced design provides better common-mode noise rejection and improves signal quality. The balanced headphone output provides twice the voltage and four times the power of the single-ended output, enabling the HA-1 to drive the most power hungry headphones. It also provides better channel seperation by eliminating the common ground return path.

Clean Signal Path – The HA-1 uses an analog potentiometer (the familar volume knob) to control the volume. By avoiding re-digitizing the audio signal for volume adjustment, the HA-1 provides a clean signal path for the audio. At the same time, the convenience of modern digital volume control is not lost - a remote-controlled motor turns the volume knob and a 10-bit analog-to-digital converter samples the signal to display a numeric dB level.

Toroidal Power Supply – A toroidal power transformer offers superior power efficiency and much lower exterior magnetic fields over traditional laminated steel core transformers. The HA-1's toroidal linear power supply provides a very clean and robust power source to the audio components.

ESS Sabre32 Reference DAC – The DAC is one of the most important components for digital audio playback. The SABRE32 Reference ES9018 from ESS Technology is the world’s best performing 32-bit audio DAC solution targeted for high-end consumer applications and professional studio equipment. With the ESS patented 32-bit Hyperstream™ DAC architecture and Time Domain Jitter Eliminator, the SABRE32 Reference DAC delivers an unprecedented DNR (Dynamic Range) of up to 135dB and THD+N (Total Harmonic Distortion plus Noise) of -120dB, the industry’s highest performance level that will satisfy even the most demanding audio enthusiast. To learn more about the technologies behind the exceptional performance of the SABRE DAC, please read the SABRE Technical White Paper.

Asynchronous USB DAC - By bypassing the low fidelity, poor quality DAC of traditional computer soundcards, the HA-1 turns any computer into a high performance multi-media source by converting digital audio to analog through the ESS Sabre32 Reference DAC. The asynchronous transfer mode uses the high precision clock inside the HA-1 to drive the audio signal, not relying on the clock quality of the computer. HA-1's USB DAC input supports PCM up to 384 kHz 24-bit and DSD up to 12 MHz (DSD256).

Made for iPod®, iPhone® and iPad® – The HA-1 passes Apple's "MFi" certification and is compatibile with the latest iPod, iPhone and iPad to be used as the digital audio output accessory of these devices. By tapping directly into the digital audio signal of these devices and converting the audio to analog using the high performance SABRE32 Reference DAC, music from your favorite portable device will sound its best.

Wireless Audio via Bluetooth - The HA-1 supports Bluetooth Advanced Audio Distribution Profile (A2DP) with both the standard and aptX® high quality codec. Simply pair your phone with the HA-1 and set music free wirelessly from your mobile phone.

Stereo Pre-Amplifier with Home Theater Bypass - The HA-1 doubles as a high fidelity stereo pre-amplifier with both RCA and XLR output ports. A special "Home Theater Bypass" mode can be assigned to any input source, making it very easy to integrate the HA-1 as a stereo pre-amplifier into a home theater sound system.

Trigger Input & Output – The HA-1 features 12V trigger input and output. When used as a stereo pre-amplifier, the trigger output can turn on your power amplifiers automatically when the HA-1 is turned on. You can also turn on the HA-1 automatically by connecting its trigger input to the trigger output of a source device or a surround sound processor.

Remote Control & App – The HA-1 comes with a remote control that provides volume control, direct source selection and even playback control for digital audio sources. A remote control app is available for both Apple's iPhone and Android-based smartphones. The app works over Bluetooth and offers the same functionality as the physical remote control.

Adjustable Gain Setting – The headphone power amplifier has an adjustable gain setting. For optimal sound quality and to best match your headphones' sensitivity, you can choose between Normal and High for the Headphone Gain setting.

Build Quality – The HA-1 is housed in a brushed aluminum chassis. The Class A amplifier naturally consumes more power and generate more heat than other types of amplifiers, so the HA-1 is designed with ample ventilation and built with the finest components to ensure long term stability and performance. Tipping the scale at 13 lbs, the HA-1 is a solidly built desktop headphone amplifier.

Specifications

Designs and specifications are subject to change without notice.
General
Dimensions (W x H x D) 10.0 x 4.8 x 12.2 inches, 254 x 80 x 333 mm
Mass 13.0 lbs, 5.9 kg
Power Supply AC 110-120 V~ / 220-240 V~, 50/60 Hz auto-sensing
Power Consumption 70 W (operation), 0.5 W (standby)
Trigger Input 3.5 V – 15 V, 10mA minimum
Trigger Output 12 V, 100 mA maximum
Operating Temperature 41 °F - 95 °F, 5 °C - 35 °C
Operating Humidity 15% - 75% No condensation
Recommended Headphone Impedance 32 ohm – 600 ohm
Balanced Headphone Jack Output (XLR-4) Pin order 1: L+, 2: L-, 3: R+, 4: R-, Shell: GND
6.35 mm Headphone Jack Output Pin order Tip: L, Ring: R, Sleeve: GND
XLR Balanced Audio Input
Input Impedance 15k ohm
Maximum Input Level 18 Vrms, +27.3 dBu (0 dBu = 0.775 Vrms)
RCA Stereo Audio Input
Input Impedance 10k ohm
Maximum Input Level 9 Vrms, +21.3 dBu (0 dBu = 0.775 Vrms)
Coaxial, Optical, AES/EBU Digital Inputs
Input Format Stereo PCM
Sampling Frequencies 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,
176.4 kHz, 192 kHz
Word Length 16-bit, 24-bit
USB DAC Audio Input (USB B Type)
Input Format Stereo PCM, Stereo DSD (DoP v1.1 or native)
PCM Sampling Frequencies 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,
176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz
PCM Word Length 16-bit, 24-bit, 32-bit
DSD Sampling Frequencies 2.8224 MHz (DSD64), 5.6448 MHz (DSD128),
11.2896 MHz (DSD256, native mode only)
Profile USB 2.0, USB Audio 2.0
Mobile USB Audio Input (USB A Type)
Input Format Stereo PCM
PCM Sampling Frequencies 44.1 kHz, 48 kHz
Profile USB 2.0, USB Audio 2.0
VBUS Power Output +5 V, 2.1 A
Bluetooth Audio Input
Standard Bluetooth 2.1+EDR
Profile iAP, SPP, AVRCP, A2DP
Audio Transmission Format SBC, aptX

DAC Performance Specifications
Specification XLR Output RCA Output
Output Level 4.6 ± 0.3 Vrms 2.3 ± 0.3 Vrms
Frequency Response
(Tested with -10 dBFS / 384 kHz) 10 Hz – 170 kHz (+0/-3 dB)
20 Hz – 20 kHz (+0/-0.07 dB) 10 Hz – 170 kHz (+0/-3 dB)
20 Hz – 20 kHz (+0/-0.07 dB)
THD+N at 1 kHz (A Weight, 20 Hz – 20 kHz) < 0.00056% (< -105 dB) < 0.00056% (< -105 dB)
Channel Separation > 105 dB > 105 dB
Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz) > 115 dB > 113 dB
Dynamic Range
(1 kHz -60 dBFS, A Weight, 20 Hz – 20 kHz) > 115 dB > 113 dB

(Test condition: USB DAC input in Home Theater Bypass mode and the volume knob at Max position.)

Pre-amplifier Performance Specifications
Specification XLR Input – XLR Output RCA Input – RCA Output
Rated Output Level 4.6 Vrms 2.3 Vrms
Frequency Response 10 Hz – 200 kHz (+0/-2 dB)
20 Hz – 20 kHz (+0/-0.04 dB) 10 Hz – 200 kHz (+0/-2 dB)
20 Hz – 20 kHz (+0/-0.04 dB)
THD+N at 1 kHz (A Weight, 20 Hz – 20 kHz) < 0.00056% (< -105 dB) < 0.00071% (< -103 dB)
Channel Separation > 120 dB > 110 dB
Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz) > 110 dB > 105 dB
Dynamic Range
(1 kHz -60 dB, A Weight, 20 Hz – 20 kHz) > 120 dB > 115 dB
Maximum Gain (100 mVrms input) 6 dB 6 dB

(Test condition: Volume knob at Max position and an input signal to drive the output to the rated output level.)

Headphone Amplifier Performance Specifications
Specification Condition XLR Input - Balanced Output RCA Input - 6.35 mm Output
Maximum Output Power (Per Channel) Into 600 Ohm 2400 mW 600 mW
Into 32 Ohm 3000 mW 3500 mW
Rated Output Power
(Per Channel) Into 600 Ohm 800 mW 200 mW
Into 32 Ohm 2000 mW 500 mW
Frequency Response 10 Hz – 200 kHz (+0/-1 dB)
20 Hz – 20 kHz (+0/-0.04 dB) 10 Hz – 200 kHz (+0/-1 dB)
20 Hz – 20 kHz (+0/-0.04 dB)
THD+N at 1k Hz
(A Weight, 20 Hz – 20 kHz) Rated Power < 0.0018% (< -95 dB) < 0.0056% (< -85 dB)
50 mW < 0.001% (< -100 dB) < 0.0022% (< -93dB)
Channel Separation > 120 dB > 90 dB
Signal-to-Noise Ratio
(A Weight, 20 Hz – 20 kHz) > 111 dB > 111 dB
Dynamic Range
(1 kHz -60 dB, A Weight, 20 Hz – 20 kHz) > 120 dB > 115 dB
Output Impedance 0.5 Ohm 0.7 Ohm

(Test condition: Volume knob at Max position and an input signal to drive the output with 600 Ohm loads to the rated output power, unless otherwise noted.)

"Made for iPod", "Made for iPhone", and "Made for iPad" mean that an electronic accessory has been designed to connect specifically to iPod® , iPhone®, or iPad®, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. Please note that the use of this accessory with iPod, iPhone, or iPad may affect wireless performance.

iPad, iPhone, iPod and iPod touch® are trademarks of Apple Inc., registered in the U.S. and other countries.

Compatible iPod/iPhone/iPad Models
- USB works with iPhone 5S, iPhone 5C, iPhone 5, iPhone 4S, iPad (4th generation), iPad mini, iPod touch (5th generation).
- Bluetooth technology works with iPhone 5S, iPhone 5C, iPhone 5, iPhone 4S, iPad (4th generation), iPad mini, and iPod touch (5th generation).

All trademarks are the property of their respective owners.

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