Marantz CD6005 već dve godine za redom osvaja nagradu "HI-FI Choice Recommended", a istu nagradu u kategoriji pojačala ove godine odnosi PM6005. Takođe, ovaj dvojac je nepobediv i za "What HI-FI" u njihovom cenovnom razredu.
Marantz PM6005 review
Marantz je proizvođač i distributer visoko kvalitetne audio opreme. Prvi proizvod je projektovao i napravio Saul B. Marantz u Kew Gardens-u, New York. U to vreme, kompanija je imala veliki uticaj na razvoj Hi Fi audio sistema, obraćajući pažnju na svaki detalj pri projektovanju i konstruisanju. Sredinom 1980-ih dok je bio pod rukovods-tvom Philips-a (pionira u CD tehnologiji), Marantz je među prvima pravio CD plejere koji su jako dobro prihvaćeni od strane zadovoljnih potrošača i kritičara. Danas, Marantz nastavlja da pravi komponente koje su u samom vrhu Hi Fi ponude na tržištu. O tome svedoči i Ken Ishiwata bez čije kontrole i finalnog tjuniranja nijedan Marantz proizvod ne može da se pojavi na tržištu. Godine 2002, Denon i Marantz prave (D&M) grupu kojoj se kasnije priključuju i druga zvučna imena iz audio industrije.
HI-FI Choice recomended - Recenzija
HI-FI Choice recomended - Recenzija 2
Recenzija What HIFI
Based on our award winning PM6005 integrated amplifier, the PM6005 adds digital audio decoding, via the reference class CS4398 24 bit/192 kHz high current D/A converter, along with our exclusive HDAM (Hyper Dynamic Amplifier Module) technology, which uses precision discrete components instead of conventional op-amp integrated circuits. The high current power supply features a high capacity shielded toroidal power transformer that provides high instantaneous burst current, essential when driving lower impedance speaker loads. The power supply also features large high current storage capacitors, and high current high speed Shottky Barrier Diodes for the cleanest power characteristics. The digital audio circuitry is housed in its own shielded subsection to eliminate interference with the analog audio circuit blocks. Multiple analog inputs include a dedicated phono input for MM turntables, and there are optical and coaxial digital audio inputs. The PM6005 is rated at 45 watts per channel (8 ohms) and 60 watts per channel (4 ohms).
Marantz HDAM Technology
Our exclusive HDAM technology features precision discrete components that provide wide dynamic range with low distortion, outperforming conventional op-amp integrated circuit chips. HDAM modules are used in the digital audio converter stages as well as the critical analog audio stage.
Fully Discrete High Current Output Stages
Equipped with multiple high current wide range power transistors, the PM6005 features the ability to handle low impedance speakers, and is rated at 45 watts per channel into 8 ohms and 60 watts per channel into 4 ohms. The output stages feature current feedback (originated by Marantz) instead of voltage feedback, for the lowest distortion and highest stability.
High Current Power Supply
Featuring a high current high capacity shielded toroidal power transformer, the power supply section also employs high current high speed Shottky Barrier Diodes, along with high current storage capacitors that together provide wide dynamic range along with low impedance drive capability.
Reference Quality D/A Conversion
Equipped with the reference class CS4398 24 bit/192 kHz D/A converter technology, the PM6005 also employs our proprietary HDAM discrete modules in the critical I/V conversion stage. The digital audio section is housed in a shielded compartment to prevent interference with the analog audio circuit blocks.
Fully Discrete Headphone Amplifier
For superb sound quality with the widest range of headphone types, the PM6005 features a fully discrete headphone amplifier that is able to handle just about any headphone type, regardless of impedance or sensitivity. The high quality gold plated ¼" headphone jack is compatible with audiophile and studio headphones and adapters.
Source Direct Mode
The Source Direct function bypasses unneeded circuit stages (such as the tone controls) for the most direct audio path from input to output.
Gold Plated Connectors
The audio inputs and outputs, along with the speaker terminals and the coaxial digital input are gold plated for long life and optimum signal transfer integrity.
A/B Speaker Select; Bi-Wiring
Equipped with two sets of speaker terminals, the PM6005 can drive two pairs of speakers, or it can be connected to one pair of bi-wiring compatible speakers, with one set of terminals for the low range drivers and the other set connected to the high range drivers.
Optical and Coaxial Digital Audio Inputs
Both optical and coaxial digital audio inputs are provided, for compatibility with the widest range of digital audio sources.
Multiple Inputs Including Phono
In addition to multiple analog line level inputs, the PM6005 also features a dedicated phono input, for compatibility with moving magnet turntables.
System Remote Control
Featuring an easy to use ergonomic design, the elegant remote control can also be user to control the matching CD6005 CD player, as well as controlling a network player.
Remote Control In/Out Terminals; IR Flasher Port
Remote input and output terminals let you connect the PM6005 to other Marantz components, such as the matching CD6005 CD player, allowing you to place the PM6005 out of sight (such as in a cabinet) yet still providing full remote control capabilities. The IR (infrared) flasher port lets you connect the PM6005 to an external system remote controller.
- 45 watts x 2 channels into 8 ohms (20-20,000 Hz) at 0.08% THD
- 60 watts x 2 channels into 4 ohms (20-20,000 Hz)
- 4-ohm capability allows use with a wide range of speakers
- Cirrus Logic CS4398 24-bit/192kHz digital-to-analog converter for high-performance playback of digitally connected sources such as network music players or CD players
- high-current toroidal power transformer for clean playback and smooth handling of demanding speaker loads
- Hyper Dynamic Amplifier Module and current feedback amplification for accuracy and control under high-drive conditions
- front-panel tone controls (treble and bass)
- Source Direct mode bypasses tone control circuits for cleaner sound
- optical and coaxial digital audio inputs
- 5 stereo RCA audio inputs (including MM phono input)
- stereo RCA audio outputs for recording
- built-in headphone amplifier with full-size (1/4-inch) jack
- connections and front-panel switching for two pairs of speakers
- frequency response 10-70,000 Hz (+0dB, -1dB)
- signal-to-noise ratio: 102 dB (line in), 83 dB (phono)
- IR flasher and remote control inputs
- detachable power cord
- remote control also operates the Marantz CD6005 CD player
- 17-5/16"W x 4-1/8"H x 14-5/8"D
- weight: 16.8 lbs.
Speaker A/B for the connection of two pair of speakers at the same time. They can run single as A or B, but as well as A+B at the same time.
Current Feedback amplification is a well known, Marantz’ original circuit technology. The Current Feedback amplifier technology fits perfectly with the high requirements set for Super Audio software providing wide-bandwidth, high-speed reproduction. The impedance at the Current Feedback point is limited resulting in a very low phase shift. Marantz receivers and amplifiers equipped with Current Feedback can keep the phase compensation via Negative FeedBack (NFB) to a minimum, resulting in high through-rate, excellent transient response and superb sonic transparency for the full bandwidth. Unlike conventional Voltage Feedback amplification, the Current Feedback amplification makes the power amplifier in-sensitive to difficult loudspeaker loads.
On paper an electrical component might look excellent but the result may fall short of the combined design expectations. Marantz selects the appropriate components for the specific design application. In some cases it’s simply not possible to use standard components that meet the high Marantz standards. These components will then be specially made for Marantz in close cooperation with the Marantz engineers.
To optimize equipment in terms of ease of use, Marantz has designed the D-Bus system. Received remote control commands are communicated via this bus. This enables equipment without IR-receiver like tuners or hidden system together with an external IR eye to be controlled via the bypacked Marantz System Remote Controller.
A Shottky diode is a special type of diode with a very low forward-voltage drop compared to normal diodes. This lower voltage drop translates into higher system efficiency. Shottky diodes have very fast signal handling, can easily stay higher temperatures and are sensitive very low voltages.
Symmetrical Circuit Layout
To achieve the best possible sonic performance, signal paths need to be short, direct and mirror imaged. The construction of our circuitry provides improved stereo imaging by ensuring close to perfect symmetry between right and left channel layout.
Toroidal transformer has several advantages over a normal EI core transformer. It is very efficient and therefore delivers more power compared to the same size of an EI core transformer. In addition, due to its shape, the electromagnetic radiation and the mechanical vibration are extremely low all ending in a better sound quality.