1. Introducción
This manual provides essential information for the safe and efficient use of your DENON PMA-2000IIR Integrated Amplifier. Please read this manual thoroughly before operating the unit and keep it for future reference. The PMA-2000IIR is designed to deliver high-fidelity audio performance, building upon the acclaimed PMA-2000 series with enhanced sound quality and robust construction.
2. Instrucciones de seguridad
To prevent electric shock, fire, and damage to the unit, observe the following safety precautions:
- No exponga esta unidad a la lluvia ni a la humedad.
- Do not remove the cover. Refer servicing to qualified personnel.
- Asegúrese de que haya una ventilación adecuada; no bloquee las aberturas de ventilación.
- Connect the unit to an AC 100V, 50/60Hz power supply only.
- No coloque objetos llenos de líquidos, como jarrones, sobre la unidad.
- Unplug the unit from the wall outlet if it will be unused for long periods.
3. Producto terminadoview
The DENON PMA-2000IIR is an integrated amplifier engineered for superior audio reproduction. Key features include:
- UHC-MOS High-Current Amplificación: La salida stage utilizes UHC-MOS (Ultra High Current MOS) elements, providing a peak current supply capability of 120A, significantly higher than conventional designs, for powerful and dynamic sound.
- Fuente de alimentación avanzada: Features a newly developed power transformer with high-current, ultra-high-speed rectifier diodes. The core lamination thickness is approximately 20% greater, and the winding cross-sectional area is about 40% larger compared to the PMA-2000, reducing operating resistance.
- Precision Mechanical Ground Construction: This design minimizes interference from internal vibrations. Radiators, damped by elastic rubber and stabilizers, are directly attached to the bottom near newly developed high-damping feet, isolating the power transformer and other vibration sources.
- Precision Signal Ground Circuit: Suppresses noise signal inflow from constant current circuits and filters out currents other than the intended signal, ensuring signal purity.
- Twin-Monaural & 6-Block Structure: To prevent sound degradation from mutual circuit interference and noise, the power amplifier blocks are configured independently for left and right channels (twin-monaural). The unit also employs a 6-block structure, separating circuits with different signal levels.
- High-Quality Phono Equalizer: The phono equalizer section features a discrete first-stage circuit utilizing low-noise FETs for optimal vinyl playback.
- Componentes de primera calidad: Incorporates selected high-quality parts, including power radiators with improved heat dissipation (20% thicker base with black anodizing), a dedicated transformer for control systems, OFC (Oxygen-Free Copper) internal wiring, inert gas-sealed relays, and high-quality carbon resistors/capacitors.
- Bi-wiring Speaker Terminals: Equipped with large, brass-machined speaker terminals compatible with bi-wiring configurations, along with an AC inlet type power cord.
- Pre-out Terminals: Provides pre-out terminals for system expansion.
Imagen 1: Frente view of the DENON PMA-2000IIR Integrated Amplificador. Esta imagen muestra el amplifier's front panel, including its gold finish, control knobs, and input selectors.
4. Configuración
4.1 Desembalaje y colocación
- Retire con cuidado el ampSaque el energizante de su embalaje.
- Place the unit on a stable, level surface with adequate ventilation. Avoid placing it near heat sources or in direct sunlight.
- Ensure there is sufficient space around the unit for proper heat dissipation.
4.2 Conexión de altavoces
- Connect your speakers to the SPEAKER A or SPEAKER B terminals on the rear panel. Ensure correct polarity (+ to + and - to -).
- For bi-wiring, connect compatible speakers to both A and B terminals, ensuring the bi-wiring load impedance is within 4-16Ω.
- El amplifier supports speaker loads of 4-16Ω for A or B, and 8-16Ω for A+B.
4.3 Conexión de fuentes de audio
- Connect your audio sources (CD player, turntable, etc.) to the appropriate input terminals (e.g., CD, TUNER, PHONO) on the rear panel using RCA cables.
- For turntables, connect to the PHONO MM or PHONO MC input depending on your cartridge type.
4.4 Conexión de alimentación
- Connect the supplied power cord to the AC INLET on the rear panel and then to a wall outlet (AC 100V, 50/60Hz).
- The unit also provides switched (max 120W total) and unswitched (max 240W) power outlets for other audio components.
5. Instrucciones de funcionamiento
5.1 Encendido y apagado
- Presione el botón POWER en el panel frontal para encender o apagar la unidad.
5.2 Selección de entrada
- Use the INPUT SELECTOR knob or buttons on the front panel to choose your desired audio source (e.g., CD, PHONO, TUNER).
5.3 Control de volumen
- Adjust the VOLUME knob to set the desired listening level. Start with a low volume and gradually increase it.
Control de 5.4 tonos
- Use the BASS and TREBLE knobs to adjust the low and high frequencies to your preference.
- Bass: ±8dB at 100Hz.
- Treble: ±8dB at 10kHz.
5.5 Source Direct Function
- Engage the Source Direct function to bypass tone controls and other processing circuits for the purest audio signal path.
6. Mantenimiento
6.1 Limpieza
- Limpie la unidad con un paño suave y seco. No utilice limpiadores abrasivos, ceras ni disolventes.
- Asegúrese de que la unidad esté desenchufada antes de limpiarla.
6.2 Ventilación
- Regularly check that the ventilation openings are not obstructed by dust or other materials.
7. Solución de problemas
Si tiene problemas con su amplifier, consulte los siguientes problemas y soluciones comunes:
| Problema | Posible causa | Solución |
|---|---|---|
| Sin poder | Cable de alimentación no conectado; interruptor de encendido apagado | Check power cord connection; Press the POWER button |
| Sin sonido | Incorrect input selected; Speaker cables disconnected; Volume too low | Seleccione la entrada correcta; Verifique las conexiones de los altavoces; Aumente el volumen |
| Sonido distorsionado | Input signal too high; Speaker impedance mismatch; Damaged cables | Reduce source volume; Verify speaker impedance; Check/replace cables |
| Ruido de zumbido | Ground loop; Nearby electrical interference | Ensure proper grounding; Move unit away from other electronics |
If the problem persists after trying these solutions, please contact DENON customer support.
8. Especificaciones
The following are the technical specifications for the DENON PMA-2000IIR Integrated Ampmás duradero:
| Característica | Especificación |
|---|---|
| Tipo | Integrado Ampmás vivaz |
| Rated Output (8Ω, 20Hz-20kHz, T.H.D. 0.07%) | 80W + 80W |
| Practical Max Output (4Ω, 1kHz, T.H.D. 0.7%) | 160W + 160W |
| Total Harmonic Distortion (8Ω, 1kHz) | 0.01% (at rated output -3dB) |
| Terminales de salida de altavoz | A or B: 4-16Ω load; A+B: 8-16Ω load; Bi-wiring: 4-16Ω load |
| Phono MM Input Sensitivity/Impedance | 2.5mV / 47kΩ |
| Phono MC Input Sensitivity/Impedance | 0.2mV / 100Ω |
| Line Input Sensitivity/Impedance | 140mV / 70kΩ (Source Direct Off); 140mV / 30kΩ (Source Direct On) |
| RIAA Deviation (PHONO) | 20 Hz-20 kHz ± 0.5 dB |
| Pre-out Output | 1V (CD line input, at 100mV input signal) |
| Respuesta de frecuencia (general) | 5Hz-100kHz (0 to -3dB) |
| SN Ratio (Phono MM, 5mV input) | 91 dB |
| SN Ratio (Phono MC, 0.5mV input) | 76 dB |
| SN Ratio (Line) | 110 dB |
| Control de tono de graves | ± 8 dB (100 Hz) |
| Control de tono agudo | ±8 dB (10 kHz) |
| Fuente de alimentación | CA 100 V, 50/60 Hz |
| Consumo de energía | 250 W |
| Dimensiones externas (An x Al x Pr) | 434 x 180 x 478 mm |
| Peso | 22.0 kilos |
Nota: las especificaciones están sujetas a cambios sin previo aviso.
9. Garantía y soporte
For warranty information, please refer to the warranty card included with your product or visit the official DENON website. If you require technical assistance or have questions not covered in this manual, please contact DENON customer support. Please have your model number (PMA-2000IIR) and purchase details ready when contacting support.
Official DENON Websitio: www.denon.com