1. Uvod
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. Sigurnosna uputstva
Da biste spriječili strujni udar, požar i oštećenje uređaja, pridržavajte se sljedećih sigurnosnih mjera opreza:
- Ne izlažite ovaj uređaj kiši ili vlazi.
- Do not remove the cover. Refer servicing to qualified personnel.
- Osigurajte odgovarajuću ventilaciju; ne blokirajte ventilacijske otvore.
- Connect the unit to an AC 100V, 50/60Hz power supply only.
- Ne postavljajte predmete napunjene tečnošću, kao što su vaze, na jedinicu.
- Unplug the unit from the wall outlet if it will be unused for long periods.
3. Proizvod je gotovview
The DENON PMA-2000IIR is an integrated amplifier engineered for superior audio reproduction. Key features include:
- UHC-MOS High-Current Amposvježenje: Izlaz 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.
- Advanced Power Supply: 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.
- Premium komponente: 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.
Slika 1: Prednja strana view of the DENON PMA-2000IIR Integrated Ampspasilac. Ova slika prikazuje amplifier's front panel, including its gold finish, control knobs, and input selectors.
4. Podešavanje
4.1 Raspakivanje i postavljanje
- Pažljivo uklonite amposloboditelj iz njegove ambalaže.
- 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 Povezivanje zvučnika
- 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.
- The amplifier supports speaker loads of 4-16Ω for A or B, and 8-16Ω for A+B.
4.3 Povezivanje audio izvora
- 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 Priključak za napajanje
- 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. Uputstvo za upotrebu
5.1 Uključivanje/isključivanje napajanja
- Press the POWER button on the front panel to turn the unit on or off.
5.2 Odabir ulaza
- Use the INPUT SELECTOR knob or buttons on the front panel to choose your desired audio source (e.g., CD, PHONO, TUNER).
5.3 Kontrola jačine zvuka
- Adjust the VOLUME knob to set the desired listening level. Start with a low volume and gradually increase it.
5.4 Kontrola tona
- 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. Održavanje
6.1 Čišćenje
- Obrišite uređaj mekom, suhom krpom. Ne koristite abrazivna sredstva za čišćenje, voskove ili rastvarače.
- Uvjerite se da je jedinica isključena prije čišćenja.
6.2 Ventilacija
- Regularly check that the ventilation openings are not obstructed by dust or other materials.
7. Otkrivanje problema
Ako imate problema sa svojim ampspasilac, pogledajte sljedeće uobičajene probleme i rješenja:
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Nema struje | Power cord not connected; Power switch off | Check power cord connection; Press the POWER button |
| Nema zvuka | Incorrect input selected; Speaker cables disconnected; Volume too low | Odaberite ispravan ulaz; Provjerite priključke zvučnika; Povećajte jačinu zvuka |
| Izobličen zvuk | Ulazni signal previsok; Neusklađenost impedanse zvučnika; Oštećeni kablovi | Reduce source volume; Verify speaker impedance; Check/replace cables |
| Zujanje | 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. Specifikacije
The following are the technical specifications for the DENON PMA-2000IIR Integrated Ampdizalica:
| Feature | Specifikacija |
|---|---|
| Tip | Integrisano Amplifier |
| 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) |
| Izlazni priključci zvučnika | 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) | 20Hz-20kHz ± 0.5 dB |
| Pre-out Output | 1V (CD line input, at 100mV input signal) |
| Frekvencijski odziv (ukupno) | 5Hz-100kHz (0 to -3dB) |
| SN Ratio (Phono MM, 5mV input) | 91dB |
| SN Ratio (Phono MC, 0.5mV input) | 76dB |
| SN Ratio (Line) | 110dB |
| Kontrola tona basa | ±8dB (100Hz) |
| Kontrola visokih tonova | ±8dB (10kHz) |
| Napajanje | AC 100V, 50/60Hz |
| Potrošnja energije | 250W |
| Vanjske dimenzije (Š x V x D) | 434 x 180 x 478 mm |
| Težina | 22.0kg |
Napomena: Specifikacije se mogu promijeniti bez prethodne najave.
9. Garancija i podrška
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 Webstranica: www.denon.com