Denon PMA-720 AE

The PMA-720AE is equipped with an Advanced HC (High-Current) Single Push-Pull Circuit that enforces Denon’s design concept for pure audio amplification. This design ensures that you hear delicate musical details, reliably supported by plenty of power. Playback faithful to the original sound is also made possible by a circuit board layout that can handle the greater power from the amplifier section and appropriately respond to the output level and unique character of the signal. In addition, the internal construction of the PMA-720AE has been carefully designed to prevent unwanted vibration from adversely affecting the audio signal.

Features:

Advanced High Current (AHC) Single-Push-Pull Circuit for musical detail and power

High-speed, high-capacity power supply circuit for AHC Single-Push-Pull

Wide dynamic range, supporting high-grade audio sources

Main transformer with separate power supplies for audio and control circuits

New higher quality speaker terminals – two pairs

The Micro-processor

Newly-designed remote unit

Specifications:

Rated output :

50 W + 50 W at (8 Ω , 20 Hz - 20 kHz, THD 0.07 %)

85 W + 85 W at (4 Ω , 1 kHz, THD 0.7%)

Total Harmonic Distortion;  0.01% (8 Ω , 1 kHz)

Preamplifi er Section

Input Sensitivity/Impedance:  120 mV / 47 kohms

Frequency Response: 10 Hz - 100 kHz — +1, –3 dB (DIRECT mode)

Signal-to-Noise  Ratio:  107 dB (IHF-A weighted, DIRECT mode)

Line ;  107 dB

Phono :  86 dB

Power Supply:  AC 230 V, 50 Hz

Power Consumption:  200 W (Standby 0.3 W, CEC standby 3 W)

Dimensions (W x H x D): 434 x 121 x 308 mm

Weight:  7.1 kg

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Denon DCD-720 AE

CD-Player with Front-USB

The DCD-720AE CD Player is endowed with plenty of acclaimed Denon audio technology to give you a quality of sound you would normally expect only from higherpriced models. It also has a USB port for digital input from an iPod or USB memory.

The DCD-720AE’s exceptional sound quality is produced by a combination of Denon’s analog waveform recreation technology called AL32 Processing, highly accurate 32bit /192kHz D/A converter (DAC), and DAC master clock design.

Features:

Advanced AL32 Processor and high-precision32-bit, 192- kHz D/A converters, to reproduce the original sound

USB port for playback from an iPod or USB memory

Vibration-resistant design with Direct Mechanical Ground Construction

Original Denon Mechanism with central assembly drawer unit

Carefully designed construction to preserve audio signal

Minimum signal path design

2 line fluorescent display

Strictly selected parts for high sound quality

Pure Direct to preserve pure

Specifiactions:

CD section

Channels:  2 channel stereo

Dynamic Range:  100 dB

Signal-to-Noise Ratio:  110 dB

Total Harmonic Distortion:  0.0025% (1 kHz)

General

Power Supply: AC 230 V, 50 Hz

Power Consumption: 22 W

Dimensions (W x H x D):  434 x 107 x 279 mm

Weight:  4.2 kg

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Kenwood GE-930 equalizer

Electronic 14-Band Graphic Equalizer/Spectrum Analyzer

14-Band graphic equalizer with ±12 dB variable range

Two fluorescent spectrum analyzer displays with level adjustor

10 equalizer memory presets (5 programmable, 5 built-in)

System remote controllable (effect memory)

Microphone mixing

Reverse mode

Kenwood GE-770

Stereo Graphic Equalizer with Spectrum Analyzer

10 bands

12 dB cut or boost per band

Independent L/R channel ad0justment with slide controls

EQ on/off switch for comparisons

Normal/Reverse switch acts as simple nooise reduction

10 band spectrum analyzer with large fluorescent display

L/R independent or L + R channel spectrum display

Easy operation with graphic display of status

Two tape channels with monitoring

Dimensions (W x H x D):  16-11/20" x 5-3/8" x 12-5/16"

Weight:  10,6 lbs (net)

Akai SW-155

Akai SW-155

Drivers:

12" Roll Edge Woofer

5" Midrange

2,5 tweeter,

2" Horn Type Super Tweer

Impedance :  8 ohms

Max. Power Input:  50 W

Frequeency response:  52 to 21,000 Hz

Dimensions (W x H x D):  406 x 640 x 300 mm ( 16" x 25",25 x 11,75")

Weight:  17,6 kg (35,2 lbs)  each

Akai SW-145

Akai SW-145

Specifications:

Drivers:

12" Roll Edge Woofer

5" Midrange

2,5" tweeter

2" Horn Type Super Tweeter

Impedance:  8 Ω

Max. Power Input:  50 W (music Power)

Frequency Response:  25 to 21,000 Hz

Dimensions (W x H x D):  380 x 595 x 295 mm (15,2' x 23,8" x 11,8")

Weight:  14,54 kg (32 lbs) each

Akai SW-130

Akai SW-130

Specifications

Drivers:

12" woofer

3,5 tweeter

Impedance:  8 Ω

Max. Power Input:  25 W

Frequency Response:  50 to 18,000 Hz

Dimensions (W x H x D):  420 x 570 x 310 mm (16,5" x 22,5" x 12,12")

Weight:  13,1 kg (28,9 lbs) each

Optonica RP-5100 turntable

Direct Drive Stereo Turntable

The first step in ensuring performance stability in the RP-5100 was inclusion of the durect drive system with its FG servo Mono Torque DC coreless motor. This precision drive system suppresses rumble and cogging while ensuring rotational speed precision and a prolonged service life. A separate tonearm motor helps maintain this rotational precision while increasing tonearm trackability. The design of the statically-balanced J-shaped tonearm serves as an inside force canceller while enhancing trackability. To ensure extra precision in rotational speed control, a stroboscope was built into the Rp-5100 to detect even small fluctuations in speed and to compensate for them instantly. The pitch control, in combination with the stroboscope, can be employed to make fine adjustments in the turntable rotating speed.

Specifications

Type:  full-automatic

Motor:  DC core-less motor with FG (Frequency generator) Servo control system

Drive System:  Direct-drive system

Turntable Platter :  aluminum die-cast

Platter Diameter:  300 mm

Speed:  33-1/3 and 45 rpm

Speed Control Range :  ±4%

Wow and Flutter:  ±0,06% (DIN 45 500);  0,04% WRMS (JIS C-5521)

Rumble:  45 dB (DIN A);  65 dB (DIN B)

Tonearm Type:  Static-balanced J-shaped pipe-arm

Effective length:  210 mm

Overhang:  11 mm

Off-Set-Angle:  19°

Cartridge Weight Range:  4 - 12 g

Stylus Pressure Range:  1 - 3 g

Type:  VM cartridge type

Output Level:  3 mV

Frequency Response:  20 Hz - 20 kHz

Channel Separation:  20 dB

Channel Balance:  3 dB

Recommended Load Impedance:  47 k Ω, 100 pF

Weight:  5,5 g

Recommended Stylus Pressure:  2 g

Power Source:  110, 20, 240 V 50/60 Hz AC

Power Consumption:  12 W

Dimensions (W x H x D):  480 x 108 x 384 mm

Weight:  8,5 kg

Finish color: Silver (H) , Brown (HB)

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Optonica RP-5200 turntable

Optonica RP-5200 Double Direct Drive Stereo Turntable

With its direct drive tonearm motor, the RP-5200 has greatly anhanced tonearm trakking accuracy, while the direct drive DC turntable motor assures extra-steady platter rotation. The direct drive tonearm system floats the tonearm over a record and then gently lets it down on the record at the touch of a control switch. For extra protection, the solenoid will immediately lift the tonearm from the record if any malfunction occurs. With soft-touch controls plus a microprocessor to offer computer accurate control of all turntable features, instant response to all commands is ensured. A statically-balanced straight tonearm provides just the right stylus pressure and trackability. A convenient repeat key allows you to listen to arecord again without having the tonearm return to the resting position.

Specifications

Type:  full-automatic

Motor:  DC core-less motor with FG Servo control system

Drive System:  Direct-drive system

Turntable Platter :  aluminum die-cast

Platter Diameter:  300 mm

Speed:  33-1/3 and 45 rpm

Speed Control Range :  ±4%

Wow and Flutter:  ±0,06% (DIN 45 500);  0,04% WRMS (JIS C-5521)

Rumble:  45 dB (DIN A);  65 dB (DIN B)

Tonearm Type:  Static-balanced straight tonearm

Effective length:  215 mm

Overhang:  16 mm

Off-Set-Angle:  23°

Cartridge Weight Range:  4 - 8 g

Type:  VM cartridge type

Output Level:  3 mV

Frequency Response:  20 Hz - 20 kHz

Channel Separation:  20 dB

Channel Balance:  2 dB

Recommended Load Impedance:  47 k Ω

Weight:  5,5 g

Recommended Stylus Pressure:  2 g

Power Source:  110, 20, 240 V 50/60 Hz AC

Power Consumption:  10 W

Dimensions (W x H x D):  430 x 106 x 345 mm

Weight:  5 kg

Finish color: Silver (H) , Brown (HB)

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Optonica RT-5200 deck

Optonica RT-5200 Stereo Cassette Tape Deck with 2-Motor drive System and Microprocessor Full Logic Solenoid Control System.

Convenience and performance are uaranteed by the microprocessor full logic solenoid transport control providing greater reliability with smoother, softtouch control of complex tape transport functions. The 2-motor drive system adds to performance by assuring speed stability. For added convenience, APSS permits one-touch skipping or repetition of desired selections. The automatic spacing function allows blank spaces to be inserted for use with APSS. Dolby Noise Reduction significantly improves the Signal-to-Noise ratio, while the MPX filter removes any remaining pilot signal from FM broadcasts. Metal tape capability lets you take full advantage of the superior performance ensured by metal tapes,while a 4-position tape selector facilitates setting for optimum performance with CrO₂, FeCr and normal tapes as well as metal tape. A fluorescent peak level display is also provided for extra monitoring ease.

Specifications

Motor:  2 motor drive system

Capstan Drive :  Electronically-controlled DC motor

Reel Drive :  High torque DC-motor

Heads:

Record/Playback :  hard permalloy

Erase :  Double-gap ferrite

Wow and Flutter:  ±0,18% (DIN 45 500);  0,058% WRMS

Tape Speed Deviation:  ±1,5%

FF/REW Time :  110 sec (C-60)

Frequency Response:

Normal Position :  40 - 13,000 Hz (±3 dB); 40 - 14,000 Hz (DIN 45 500)

CrO₂ Position :  40 - 15,000 Hz (±3 dB);  40 - 16,000 Hz (DIN 45 500)

Fe-Cr Position :  40 - 15,000 Hz (±3 dB):  40 - 16,000 Hz (DIN 45 500)

Metal Position :  40 - 16,000 Hz (±3 dB): 40 - 17,000 Hz (DIN 45 500)

Signal-to-Noise Ratio (Fe-Cr Tapes):

Dolby NR off :  56 dB

Dolby NR on :  66 dB at over 5 kHz

Recording System:  AC bias (105 kHz)

Erase System:  AC erase (105 kHz)

Input Sensitivity/Impedance:

Mic :  0,2 mV/ 6,8 k Ω

Line -In :  50 mV/ 50 k Ω

Rec/Pb (DIN) :  0,2 mV/ 6,8 k Ω

 Output Level/Impedance:

Line-Out :  710 mV/50 k Ω at 0 dB

Rec/Pb (DIN) :  710 mV/50 k Ω at 0 dB

Headphones :  89 mV/ 8 Ω at 0 dB

Power Source:  110, 220, 240 V 50/60 Hz  AC

Power Consumption:  30 W (at 220 V)

Dimensions (W x H x D):  430 x 95 x 320 mm

Weight :  5,8 kg

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Optonica ST-5200 tuner

Optonica ST-5200

FM/LW/MW Stereo Synthesizer  Tuner with Microprocessor Tuning System

The synthesizer tuning system employed in this 3-band stereo tuner minimizes error and drift by breaking down a reference frequency and using it to synthesize the tuning frequency. As aresult, extremely stable, highly accurate reception is ensured. An easy-to-read digital frequency tuning display indicates the tuned frequency to enable pinpoint tuning accuracy. The auto search tuning system allows the synthesizer to be set to stop automatically at the nearest station in the chosen direction for effortless tuning. 10 presettable station memories can be set for one-touch tuning of favourite station. LED tuning meters facilitate pinpoint tuning accuracy and, when used with the FM air check calibrator, allow simplified setting of deck input levels for FM recordings. Soft-touch controls assure smooth operation.

Specifications

FM Section

Frequency Range:  87,5 - 108 MHz

Antenna Input:  75 Ω unbalanced; 300 Ω balanced

Synthesizer Tuner:  yes

Span Frequency:  0,05 MHz

Automatic Tuning:  yes

Pre-Setting Station;  FM/AM total 10

Sensitivity :

Mono (DIN 40 kHz dev. Signal-to-Noise 26 dB):  1,3 µV (75 Ω); 1,6 µV (300 Ω)

Stereo (DIN 40 kHz dev. Signal-to-Noise 46 dB):  39 µV (75 Ω); 45 µV (300 Ω)

Total Harmonic Distortion (1 kHz, 40 kHz dev.):

Mono :  0,2%

Stereo :  0,3%

Signal-to-Noise Ratio (1mV, 40 kHz dev. 1 kHz):

Mono :  66 dB

Stereo : 61 dB

Frequency Response:  30 Hz - 15 kHz (±3 dB)

Image Rejection (at 98 MHz):  75 dB

IF Rejection(at 98 MHz):  75 dB

AM Suppression (modulated 30%, AM by 1 kHz and 100% FM by 400 Hz):  50 dB

Selectivity (±300 kHz, 40 kHz dev.):  40 dB (normal)

Capture Ratio:  2,5 dB (normal)

Subcarrier Suppression:  45 dB

Stereo Separation:

At 1 kHz :  40 dB

At 10 kHz :  30 dB

AM Section

Frequency Range: 

MW :  522 - 1610 kHz

LW :  150 - 372 kHz

Antenna:  Built-in ferrite bar antenna; External Antenna terminal

Synthesizer Tuner:  yes

Span Frequency:  9 kHz

Automatic Tuning:  yes

Pre-Setting Station:  FM/AM total 10

Sensitivity

MW :  350 µV/m (Signal-to-Noise 20 dB, 1000 kHz)

LW :  350 µV/m (Signal-to-Noise 10 dB, 220 kHz)

Audio Section

FM Output (40 kHz dev.):  350 mV (fixed)

AM Output (30% mod.):  200 mV (fixed)

General

Power Sourece:  110/220/240 V 50/60 Hz AC

Power Consumption:  18 W (220 V)

Dimensions (W x H x D):  430 x 75 x 393 mm

Weight:  5,0 kg

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Optonica SM-5200 amplifier

Optonica SM-5200 Integrated Stereo Amplifier

The amplifier for the 5200 Series offers the type of circuitry and features usually found in the more sophisticated models. ITL/OTL/OCL (input transformerless/output transformerless/output capacitorless) power amp circuitry helps keep distortion to a minimum, while improving amplifier performance, even with the ample power rating of this unit. The SM-5200 is equipped with a 4-position speaker switch enabling a variety of listening arrangements with two speaker systems, a loudness switch for natural-sounding performance at low volume levels, a subsonic filter for extra audio clarity and mode switch for monaural as well as stereo reproduction. For extra ease, LEDs indicating the operating status of each pushbutton are provided on the front panel.

Specifications

Amplifier Section

Music Output Power: 

2 x 68 W at 4 Ω (0,09% Total Harmonic Distortion)

2 x 45 W at 8 Ω (0,09% Total Harmonic Distortion)

Continuous Output Power (RMS, both channel driven) At 1 kHz :

2 x 40 W (4 Ω, 0,09% T.H.D.)

2 x 33 W (8 Ω, 0,09% T.H.D.)

Continuous Output Power (RMS, both channel driven) from 20 Hz to 20 kHz:

2 x 38 W (4 Ω, 0,15% T.H.D.)

2 x 30 W (8 Ω, 0,09% T.H.D.)

Total Harmonic Distortion:

Rated Power :  0,09%

Half Power :  0,03%

Power Pandwidth (IHF):  10 Hz - 30 kHz (0,15% T.H.D.)

Frequency Response

Phono:  (±0,4 dB) RIAA curve Deviation

Tuner, Aux, Tape :  10 Hz - 65 kHz (+1 dB, -3 dB)

Damping Factor (1 kHz, 4 Ω):  20

Signal-to-Noise Ratio (IHF-A): 

Phono:  70 dB

Aux : 90 dB

Phono Overload Level (1 kHz):  150 mV RMS

Tone Control

Bass :  ±10 dB at 100 Hz

Treble :  ±10 dB at 10 kHz

Loudness Control:  +6 dB at 100 Hz ; +4 dB at 10 kHz

Filter Low :30 Hz (-6 dB/oct)

Input Sensitivity/Impedance:

Phono :  2,3 mV / 47 k Ω; 120 pF

Aux, Tuner, Tape :  150 mV/47 k Ω

Output Level/Impedance

Speakers :  A, B (4 - 16 Ω);  A+B(8 - 16 Ω)

Headphones :  Low Impedance (4 - 16 Ω)

Tape (Chinch) :  150 mV/47 kΩ

Tape (DIN) :  60 mV/ 82 k Ω

General Section

Power Source:  110/220/240 V, 50/60 Hz AC

Power Consumption:  330 W (220V)

Dimensions (W x H x D):  430 x 75 x 382 mm

Weight:  7,7 kg

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