Audio Database

The

DENON PMA-S10IIIL
280,000yen(December, 2001 release)

Description
 
The Integrated Amplifier of the limited model announced in October, 2001 in commemoration of having changed the name into DENON (Denon) from DENON (Denon).

Large current type magnification element UHC-MOS used for highest-class monophonic amplifier POA-S1 of DENON was adopted, the UHC single push pull circuit was strengthened further, and high power has been obtained, giving power of expression.

The toroidal transformer which has a large-sized magnetism circuit in the power transformer of a power supply circuit is adopted, and the flattery nature to a music signal is improved by performing the design which has a large dynamic range to a magnetic saturation domain. Moreover, in order to suppress the influence of vibration of a toroidal transformer, the method of fixing an S.B. (Stable Based) system using an aluminum sand casting case is adopted. Furthermore, it becomes independent about the winding wire of the power source of a power-source magnification stage or a phone equalizer, and the mutual intervention between each circuit is suppressed.

In order to have adopted the newly developed thing as a block condenser and to suppress the influence by vibration, it is fixing with the stabilizer made from an aluminum sand casting.
In moreover, the rectifier circuit which changes into a direct-current power source the AC power outputted from the power transformer, and is supplied to an amplifier partThe Schottky barrier diode developed for high frequency rectification is carried by parallel connection, and the low-noise, low loss, and improvement in the speed of the power supply circuit are attained by the low-noise characteristic and the large current characteristic by high-speed operation.
Furthermore, improvement of the characteristic and stable current supply in a play frequency all zone are planned with the combination of the capacitor by which the mass electrolytic condenser which uses low impedance electrode foil differs from a frequency response.
OFC wiring material is used for wiring from a power transformer output to a power amplifier output stage, and the energy loss is suppressed to it to the minimum.

Sound quality degradation by the mutual intervention between circuits or inflow of a noise is suppressed by adopting the twin monophonic composition which became independent by right and left about the power amplifier block, and also adopting 6 block structures which put into practice separation and cover of the circuit where signal levels differ. Furthermore, a power amplifier circuit / power radiator is separated with a power transformer, and, also mechanically, it is covering.
Moreover, in order to suppress generating of the noise by vibration, while adopting as a chassis the sheet steel with a thickness of 1.6mm which performed black paint and securing rigidity, equalization of the temperature in a chassis is attained.

While adopting the newly developed product made of cast iron as an insulator, the vibrational absorption effect is heightened by adopting hybrid construction with the high new materials of vibrational absorption nature.

Each of the volume circuit, the tone circuit, and the power amplifier circuit was improved, and the maximum of the frequency response at the time of real use is improved to 100kHz. Furthermore, the noise generated within amplifier by improving a volume circuit at the time of real use is stopped, and correspondence to the large frequency response and dynamic range which next-generation media have is aimed at by improving resolving power.

The Precision Signal Ground circuit is carried and inflow of noise current, such as a constant current circuit, is reduced to the grand circuit used as the origin/datum of signal magnification.

what carried out brass shaving appearance, plated with gold at the part, and reduced the transmission loss is adopted as a speaker terminal.
Moreover, the bore diameter of a clamp part is made large-sized with phi6mm, and correspondence to a very-thick speaker cable is aimed at.

The phone equalizer which adopted the first rank circuit of discrete composition of having used low-noise FET is carried in the phone equalizer part. High-quality sound-ization is attained by the regulated power supply only for a phone equalizer.
Moreover, the changeover switch is prepared in order to correspond to each cartridge of MM/MC.

beginning and carrying out large-sized shaving appearance of the 40 type 4-unit volume -- a gilding pin jack,Complete reexamination of parts adopted by PMA-S10III, such as OFC internal wiring material, an inactive gas enclosure type relay, a high-quality sound film capacitor, a high-quality sound electrolytic condenser, and an attachment-and-detachment type OFC power cable, was performed, and the newly developed part is adopted.

Rear
Internal
Large
Large-sized
A
Schottky
Use The Aluminum
Precision Signal Ground circuit

Rating of a mode
Form Integrated Amplifier
<Power amplifier part>
Output power
(Both channel drive, CD->SP out)
100W+100W (8 ohms, 20Hz - 20kHz, THD 0.07%)
200W+200W (4 ohms, 1kHz, THD 0.7%)
THD 0.01% (Output-power-3dB o'clock, 8 ohms, 1kHz)
Speaker output terminal AorB: 4ohms - 16ohms
A+B: 8ohm-16ohm
<Preamplifier part>
Input sensitivity/impedance Line: 150mV/47kohm (Source-Direct-off)
150mV/15kohm (Source-Direct-on)
Phono MM: 2.5mV/47kohm
Phono MC: 0.2mV/100 ohms
Equalizer amplifier output 150mV
RIAA deflection 20Hz-20kHz±0.5dB
<Synthesis>
Frequency response 5Hz - -100kHz three dB
Signal to noise ratio
(at the time of A network and an input short circuit)
Line:110dB
Phono MM: 91dB (5mV of incoming signal o'clock)
Phono MC: 76dB (0.5mV of incoming signal o'clock)
Tone control Bass: 100Hz±8dB
Treble: 10kHz±8dB
Power receptacle Switched: Two lines, a total of 120W
Unswitched: One line, 240W
Power supply voltage AC100V, 50Hz/60Hz
Power consumption 300W
Dimensions Width 434x height 181x depth of 485mm
Weight 29kg