PMA-655R - Audiogamma
Transcript
PMA-655R - Audiogamma
N E W M O D E L I N F O R M A T I O N Integrated Amplifier PMA-655R An Integrated Amp with HC Single Push-Pull Circuit, Combining Delicate Musical Details and Rock-Solid Power The PMA-655R is an integrated amplifier specially designed to reproduce the remarkably clean sound of next-generation DVD-Audio and SACD sources, as well as existing CDs and analog records. This elegant component gives you the best of two worlds: A high-speed, large-current power circuit ensures a rock-stable supply of power, and an HC single push-pull circuit delivers a powerful sound while preserving the beautiful details of music. The PMA-655R's careful attention to sound quality also features an inert gas relay for switching between CD and PHONO inputs, and redesigned volume, tone, and power circuits to further suppress noise and expand the frequencyband. The PMA-655R is a superior all-round integrated amp, ideal for today's growing choices of high-quality audio entertainment. High-Current (HC) Single Push-Pull Circuit Combining Delicate Musical Details and Rock-Solid Power Inheriting the concept of the UHC Single Push-Pull circuit that was incorporated in the S-Series and earned high acclaim for the richness of its expressive power, the HC Single Push-Pull circuit was developed to bring out the maximum potential of the PMA-655R integrated amplifier. Delicate nuances of the music and reliable stability of power have finally been combined to open a completely new dimension in sonic experience. Serious and budding audiophiles alike can enjoy the music directly as artistic expression and savor the artist’s original involvement. ■ HC-Transistor, for Rich, Expressive Sound The HC-transistor, boasting superior electric current supply capability and double the capacity of normal transistors to handle peak levels of electric current, was developed in order to endow the PMA-655R with high-end audio performance. The dramatic improvement in musical expression is easily audible. ■ High-Speed, High-Capacity Power Supply Circuit A fast recovery diode featuring both rapid response and superior power supply capability has been employed in the rectifier circuit so that the HC Single Push-Pull circuit can work at its maximum potential. Combined with the large-capacity smoothing block condenser designed for high sound quality, a highly stable power supply ensures that the musical expression is always clear and realistic. ■ Independent Power Transformer for Microprocessor Separate power transformers are used for the microprocessor circuitry and the audio circuitry in order to minimize power consumption during remote power OFF standby mode and promote environmentally friendly performance. Not only is power consumption reduced during standby, sound quality is improved as well by eliminating noise-inducing interference on the audio circuitry. ■ Microprocessor Stop Mode to Further Improve Sound Quality When control by the microprocessor is not needed during listening sessions or other times, the Microprocessor Stop mode suspends all microprocessor operations. During normal listening sessions, microprocessor clock oscillation stops and adverse effects of noise on the audio signal are eliminated to produce a cleaner sound. ■ Every Detail of The Design Devoted to High-Quality Sound The relay switch used for CD and PHONO input contains an inert gas to prevent the occurrence of noise that can negatively affect the signal. In addition, highly reliable parts strictly selected for their contribution to sound quality, such as the large-capacity block capacitor for the power supply circuit, high-quality sound carbon resistors, and high-quality sound capacitors, are also used. Each individual part employed in configuring the circuits reflect this emphasis on high sound quality. ■ Circuit Design Devoted to Full Musical Enjoyment The design of the PMA-655R’s audio circuitry features a simple signal line layout to ensure that the signal remains pure, a Tone control to adjust sound quality as desired, and a Source Direct switch to route the signal over the shortest distance from input to output, providing the most faithful reproduction of the recorded music. ■ N E W M O D E L PMA-655R I N F O R M A T I O N ■ Supports A Wide Variety of Next-Generation Sound Sources The volume and tone controls and the power amp circuit have been redesigned to further suppress noise inside the amp, provide greater resolution, and expand the frequency band so that the tremendous dynamism of DVD-Audio, SACD, and other next-generation audio will come alive. ■ REC OUT Selector for Flexible Enjoyment of Music Background recording, such as from a CD to an MD while listening to the radio, is possible with the PMA-655R’s REC OUT Selector. Monitoring is also possible with any deck containing 3 heads. ■ PHONO Equalizer Amp (MM), Permitting Connection of An Analog Turntable ■ A Wealth of Input and Output Terminals That Flexibly Accommodate The Building of A Custom System ■ Versatile System-Wide Remote Controller The remote controller provided with the PMA-655R controls the main volume, switches functions, mutes the sound, and operates remote power ON/OFF. Since this is a system-wide commander, it can be used to control a DENON CD player, MD recorder, tuner, and cassette deck as well. PRE OUT Terminals for Future System Expansion The PMA-655R is equipped with PRE OUT terminals that permit a variety of possibilities for future system expansion, such as using the integrated amp as a power amp with high output power, or adding a super woofer. ■ *Black version is available. Specifications Power Amp Section Rated output, both channels driven ............. 50 W + 50 W (8 ohms, 20 - 20 kHz, 0.07%THD) 85 W + 85 W (4 ohms, 1 kHz, 0.7%THD) ■ Preamplifier Section Input sensitivity/impedance PHONO (MM)......................................... 2.5 mV/47 kΩ CD, TUNER, DVD/AUX, TAPE-1/DAT, TAPE-2/MD, PRE OUT .......................... 150 mV/47 kΩ RIAA deviation ............................................. 20 Hz - 20 kHz ±0.5 dB (MM) Frequency response .................................... 5 Hz - 100 kHz (0, -3 dB) ■ General Characteristics S/N ratio (A network) PHONO (MM)......................................... 86 dB (5 mV input) CD, TUNER, DVD/AUX.......................... 107 dB (input terminals shorted / Source Direct ON) Tone controls ............................................... 100 Hz ±8 dB (BASS), 10 kHz ±8 dB (TREBLE) Loudness ..................................................... 100 Hz +6 dB, 10 kHz +6 dB ■ Other Specifications Power supply ............................................... 230 V, 50 Hz Power consumption ..................................... 185 W Dimensions .................................................. 434 (W) x 120 (H) x 338 (D) mm Weight.......................................................... 7.0 kg ■ *Design and specifications are subject to change without notice. NIPPON COLUMBIA CO., LTD. 14-14, AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011, JAPAN http://www.denon.co.jp 24940300B B