Aiwa AS-S30 amplifier

Stereo Integrated Amplifier

Fifteen big Watts per channel of honest-to-goodness high fidelity sound from a 2-stage differential SEEP-OCL integrated amplifier an incredibly compact 7,1 cm high by 21 cm wide. Yet, the A30 has plenty of room to accommodate up to 4 external components including tape, deck, tuner and record turntable.

Power output has been boosted by use of a new extra-stable power transformer with independent coils for power and preamplifier sections, and enlarged heat sinks aid in efficient heat dissipation.

For low noise and dynamic performance from high quality MM phono cartridges, the improved phono equalizer IC has boosted Signal-to-Noise Ratio to an excellent 82 dB, with very low 0,005% distortion at 1 kHz. RIAA equalization is a remarkably precise ±0,2 dB throughout the 20 to 20,000 Hz frequency range. For well-balanced listening at low output volumes a switchable loudness compensation circuit is provided.

 

 

Plus features:

5-LED logarithmic peak output indicator [0,1 - 40 watts]

AUX component terminals

Stereo headphone jack

Power On LED indicator

Bass, treble, balance controls

Quick one-touch speaker connection terminals

Rack handles included

 

Specifications

Type:  Stereo integrated amplifier

Semiconductors:  5 ICs; 5 Transistors; 12 Diodes, 6 LEDs

Power Amp Section

Effective Output Power:  20 W + 20 W (8 Ω ) U model

15 Watts per channel , Min. RMS at 8 Ω , from 20 Hz - 20 kHz, with no more than 1% T.H.D.

Tdh :  0,1% (1 kHz, 5 W + 5 W) U model

Total Harmonic Distortion from 20 to 20 kHz at 250 mW to 15 W power at 8 Ω  , 1 % Max

Output Bandwidth:  10 Hz to 20,000 Hz (less than1%)both channel driven, 8 Ω

Frequency Response:  20 to 20,000 Hz

Pre-Amp Section

Signal-to-Noise Ratio (IHF A curve, short circuit, Weighted):

Phono :  better than 76 dB

Tuner, Aux :  better than 90 dB

Tone Controls

Bass :  ±10 dB at 100 Hz

Treble :  ±8 dB at 10 kHz

Loudness:

6,5 dB at 100 Hz (±1,5 dB)

3,5 dB at 10 kHz (±1,5 dB)

RIAA Deviation: ±0,2 dB (20 Hz - 20,000 Hz)

Channel Separation: better than 40 dB

Phono Overload Level:  better than 100 mV (MM, at 1 kHz)

Channel Balance:  less than 3 dB

Residual Noise:  less than 2 mV

Input Sensitivity/Impedance:

Phono :  2,5 mV/47 k Ω

Tuner :  150 mV/47 k Ω

Aux :  150 mV/47 k Ω

Tape :  150 mV/47 k Ω

Output Level/Impedance:

Tape :  120 mV/47 k Ω

Headphones Load Impedance :  8 to 16 Ω

Speakers Impedance :  8 to 16 Ω

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

Power Consumption:  40 W

Dimensions (W x H x D):  210 x 71 x 200 mm (8-1/4" x 2-3/4" x 7-7/8")

Weight:  3,15 kg (6,9 lbs)

 

Aiwa AP-D35 turntable

A beautifully styled semi-automatic belt-drive unit, the AP-D35 combines a stable AC synchronous motor and large 30 cm diecast platter for low o,o7% Wow and Flutter. Sensitive low-mass straight tonearm is designed for improved trackability, features adjustable anti-skating cueing and auto-return.

Features:

Anti-howling design with large, stable insulator feet

Removable plastic dust cover

Front panel Eject and Speed selection switches

MM Phono cartridge included

 

Specifications

Type:  Semi-Automatic 

Drive System:  Belt-drive

Motor:  4-pole Synchronous Motor

Speed:  33-⅓ and 45 rpm

Turntable Platter:  Aluminum Alloy Diecast

Platter Diameter :  300 mm

Platter Weight :  0,4 kg

Wow and Flutter:

WRMS :  0,07%

DIN :  0,14%

Signal-to-Noise Ratio:  60 dB (DIN-B Curve, Weighted)

Tonearm Section

Type:  Static balanced Straight Type

Effective Arm Length:  217 mm (±2 mm)

Overhang:  16 mm

Tracking Error:  +3°, -1°15'

Offset Angle:  23°30'

Usable Cartridge Weight:  5 g to 9 g

Applicable Tracking Force:  0 to 4 g (0 to 39,2 mN)

Arm Sensitivity: 

Horizontal :  300 mg

Vertical :  300 mg

Arm Effective Mass:  20 g (included cartridge)

Cartridge

Type:  Moving Magnet (MM)

Output Voltage:  3,5 mV (1 kHz)

Separation:  20 dB (33-⅓ rpm, 1 kHz)

Frequency Response:  20 to 20,000 Hz

Static Compliance:  8 x 10¯⁶ cm/dyn

Stylus pressure:  2,5 g (±0,5 g)

Load Capacitance/Impedance:  200 pF/47 k Ω

Stylus:  0,7 mill diamond

Dynamic Compliance:  5 x 10¯⁶ cm/dyn

General

Power Requirements:  AC 110-120/220-240 V 50/60 Hz (H model)

Power Consumption:  7/8 W (H model)

Dimensions (W x H x D):  420 x 105 x 355 mm (16-9/16" x 4-3/16" x 14")

Weight:  4,2 kg (9,3 lbs)

 

Aiwa SD-L30 cassette deck

Stereo Cassette Deck

High performance recording and playback in a tape deck less than 7,2 cm high

A full-fledged, full-performance stereo unit with every essential feature you'd expect to find in larger systems, the SD-L30 combines modern styling with an incredibly precise slot-in loading mechanism and reliable DC servo motor that makes you wonder why decks got so big and complicated in the first place.

Metal Compatibility

The ability to make recordings on high performance metal cassettes is no longer a luxury confined to high priced avantgarde models; Aiwa has modified the SD-L30's circuitry and boosted erasure power to ensure full compatibility with metal. Along with extended frequency response metal tapes will give such dynamic sound you'll want to use them for all your serious recording work. A tough long-wearing hard Permalloy record/playback head and dounble-gap ferrite erase head ensure trouble free performance from all tape formulations.

Optical Peak Display

Besides conserving space, responsive peak LEDs provide an additional measure of accuracy to take the guesswork out of record level adjustment. Signals are indicated separately for left and right channels in an easy-to-read 3-color sequence from -10 dB to +6 dB

Amazingly, the SD-L30 even has rear panel jacks to accommodate a pair of microphones for live stereo recordings

Plus features:

Dolby NR system

Full auto stop

Separate L/R record volume controls

Line/mic input selector

Digital tape counter

Head cleaning access window

 

Specifications

Wow and Flutter:  0,09% WRMS

Signal-to-Noise Ratio:  60 dB (Dolby On)

Frequency Response

LH Tape :  25 -14,000 Hz

CrO₂ Tape :  25 - 16,000 Hz

Metal Tape :  25 - 16,000 Hz

Input Sensitivity/Impedance

Line In :  50 mV/50 k Ω

Mic :  0,3 mV/200 Ω  - 10 k Ω

Output Level/Impedance

Line Out :  0,41 V/50 k Ω

Head

Rec/Playback :  Hard Permalloy head

Erase :  Hi-Bs double gap ferrite head

Motor:  DC servo motor

Power Requirements:  240 V 50/60 Hz

Dimensions (W x H x D):  210 x 72 x 229 mm

(8-5/16" x 2-7/8" x 9-1/16")

Weight:2,8 kg (6,2 lbs)

 

Aiwa ST-R30 tuner

AM/FM Stereo Tuner

An unpretentious tuner with some very impressive credentials, the R30 brings a new dimension in design and convenience to radio listening enjoyment.

Accurate Digital Display

Regardless of scale length, you're never quite sure where you're tuned with linear or rotary scales, because their graduations are usually too widely spaced to define tuning variations as close as 100 kHz (FM) or 1 kHz (AM). This alone is one big advantage of a property designed digital readout. For extra accuracy, the frequency counter IC in the R30's digital unit employs a quartz crystal which provides an unerring 6,4 MHz reference signal to ensure that tuning is held within a close ±25 kHz for FM or ±1,5 kHz for AM.

Superb Performance

For the best possible sensitivity and rejection of spurious signals, front end design employs a high stability cascade junction MOS FET. Moving on to the IF detector stage, outstanding 70 dB selectivity within 400 kHz is realized by use of ceramic filters specially chosen for the flattest possible group delay characteristics, which in turn has achieved low noise and distortion. Beautiful stereo separation (45 dB at 1 kHz) is maintained by means of a stable PLL IC in the MPX demodulator stage.

Other Features:
hi-bled circuit

5-LED signal strength indicator

FM stereo indicator

Antenna terminals for 75 oh and 300 Ω

FM muting/AFC combination switch

AM/FM indicator LED

Rack Handles included

 

Specifications

FM Section

Sensitivity

Mono : 1,9 µV (usable sensitivity)

Stereo :  43 µV (at S/N 50 dB)

Signal-to-Noise Ratio

Mono :  73 dB

Stereo :  70 dB

Total Harmonic Distortion

Mono :  0,1%

Stereo :  0,25%

Capture Ratio:  1,5 dB

Stereo Channel Separation:  45 dB (at 1 kHz)

Frequency Response:  30 - 15,000 Hz (+0,5 dB, -1,5 dB)

IF Rejection:  80 dB

AMSuppression Ratio: 55 dB

AM Section

Frequency Range:

MW :  525 kHz - 1,605 kHz

LW :  150 kHz - 285 kHz

Power Requirements:  240 V 50/60 Hz

Dimensions (W x H x D):  210 x 71 x 254,5 mm (8-5/16" x 2-13/16" x 9")

Weight:  2,1 kg (4,6 lbs)

 

Aiwa AX-S50 receiver

Mini Receiver Features

Adjustable synthesizer sensitivity control

4-digit LED tuning display

Auto search synthesizer tuning

7-point LED peak power meter/tuning signal strength display

FM muting and Loudness control

Click-stop bass/treble tone controls

Connections for Aux, Phono , Tape

Front panel headphone jack

 

A smart looking receiver of incredibly compact dimensions, the AX-S50 puts out a lively 20 Watts per channel; its main appeal however is in its many sophisticated features, some so advanced they are just beginning to make their appearance in current full-sized receiver models.

For fully electronic one-touch tuning capability, the tuner section incorporates a quartz PLL synthesizer which selects the station either automatically or manually. Up to 10 stations may be programmed into the tuner's "memory" and selected at random, irrespective of band. An A/B switch (A=1-5/B=6-10) serves to reduce the number of switches for a cleaner control arrangement.

As in other Aiwa mini units, capable phono equalizer design promises high signal/noise ratio (80 dB) and ample overload capability (180 Mv at 1 kHz). The RC-R300 wireless remote control system (optional) can also be added to give the AX-S50 even more versatility; wireless remote functions include manual station tuning selection of preset radio channels and listening modes, up/down volume adjustment and operation of the SD-L60 cassette deck.

 

Specifications

Tuner Section

Frequency Range:  87,5 MHz to 108 MHz

Usable Sensitivity:  11,2 dBf (2uv)

50 dB Quieting Sensitivty

Mono :  4,0 µV (17,2 dBf)

Stereo :  44 µV (38,0 dBf)

Signal-to-Noise Ratio:

Mono :  75  dB (70 dB DIN)

Stereo :  70 dB (66 dB DIN)

Capture Ratio:  1,5 dB

Selectivity:  65 dB (±400 kHz){

Total Harmonic Distortion

Mono :  0,15%

Stereo :  0,3%

Stereo Separation:  40 dB (at 1 kHz)

AM Tuner Section

Frequency Range: 

MW :  525 kHz - 1,605 kHz

LW :  150 kHz - 285 kHz

Usable Sensitivity:

MW :  300 µV/m (Bar antenna)

LW :  800 µV/m (Bar antenna)

MW :  30 µV/m (ext. antenna)

LW :  50 µV/m (ext. antenna)

Signal-to-Noise Ratio

MW :  52 dB

LW :  50 dB

Selectivity:  30 dB

Amplifier Section

Power Output:  20 watts per channel, Min. RMS at 8 Ω  from 20 - 20,000 Hz, with no more than 0,3% T.H.D.

Total Harmonic Distortion :  0,3% (at 8 Ω ), 1% (DIN)

Frequency Response:  40 Hz to 16,000 Hz ±1,5 dB

Power Bandwidth:  10 Hz - 40 kHz

Damping Factor:  30

Separation:  35 dB (1 kHz)

Crosstalk:  60 db

Input Sensitivity/Impedance

Phono :  2,5 mV/47 k Ω 

Aux, Tape,:  150 mV/47 k Ω

Signal-to-Noise Ratio

Phono :  80 dB

Aux, Tape :  90 dB

Phono RIAA Curve:  30 Hz -15 kHz ±0,5 dB

Phono Overload:  180 mV (1 kHz)

Semiconductors:  16 ICs; 4 FETs; 56 Transistors; 69 Diodes; 18 LEDs

Power Requirements: AC 220 - 240 V, 50/60 Hz

Power Consumption:  150 W or 140 W

Dimensions (W x H x D):  250 x 71 x 316 mm (9-7/8" x 2-13/16" x 12-1/2")

Weight:  3,6 kg (7,9 lbs)

 

Aiwa SA-A60 amplifier

Amplifier, tuner and cassette deck; all identically styled, all withexciting performance.

The SA-A60 integrated amplifier typifies a new breed of space-saving mini component designed for powerful, low distortion sound.

 

Dynamic Super Loudness for improved bass reproduction

Mere tone adjustment or use of conventional loudness compensation can only enhance bass signals at the expense of affecting listening quality in midrange frequencies as well. The new DSL circuit in the SA-A60 puts back electronically what the speaker itself is unable to do strucurally, DSL performs at its best at quiet listening levels; its effect is automatically attenuated in response to output volume, keeping tone quality natural whether at low, medium or high volumes. Whether with bookshelf size or larger floor standing speakers, every type of music stands to benefit from this exciting new achievement.

 

Built-in MC cartridge head amp

Just press in the front panel switch and you can enjoy the distinctive tone quality of Moving Coil phono cartridges on the SA-A60 without the need for expensive outboard head amplifier units. MM cartridge performance is outstanding as well; the precision phono equalizer boasts a superb 85 dB Signal-to-Noise Ratio and RIAA deviation within ±0,2 dB from 20 to 20,000 Hz

Stabilized power supply

For full power performance with extra stability, the 30 watt per channel power stage incorporates a heavy-duty toroidal core transformer. Power ICs are protected by a new type of temperature sensitive circuit designed to guard against overheating.

 

Plus Features:

Wireless remote control terminal

7-step peak power output display

-20 dB muting switch

Low cut filter

LED mode setting indicators

 

Specifications

Output Power:  30 W + 30 W (at 8 Ω , 1 kHz, T.H.D. 0,05%)

Total Harmonic Distortion :  0,05% (1 kHz at rated output)

RIAA Deviation:  +_0,02 dB (20 - 20 kHz)

Frequency Response:  10 Hz - 70,000 Hz (+0,5 -3,0 dB)

Signal-to-Noise Ratio :

Phono MM :  85 dB

Phono MC :  68 dB

Tuner, Aux :  93 dB

Power Requirements:  240 V 50/60 Hz

Dimensions (W x H x D):  250 x 71 x 257,5 mm (9-7/8" x 2-13/16" x 10-1/8")

Weight:  4,2 kg (9,3 lbs)

 

Aiwa SC-E60 speakers

A handsome addition to the M-501, M-606 or M-301 mini systems, this two-way bookshelf speaker system features a newly developed 25 mm dome tweeter and large 180 mm low frequency driver for efficient bass reproduction. Wide 45-40,000 Hz Frequency Response.

 

SC-E 60 Specifications

Type:  2-way bass-reflex type

Speaker Units:

Woofer :  180 mm diam. (7-1/8") Cone-type

Tweeter :  25 mm diam. (1") Dome-type

Impedance:  8 Ω

Max. Input:  60 watts

Output Level:  90 dB/W/1 m

Crossover Frequency:  2,0 kHz

Frequency Response:  45 Hz - 40,000 Hz

Dimensions (W x H x D):  230 x 360 x 230 mm (9-1/16" x 14-3/16" x 9 -1/16")

Weight:  6,1 kg (13,4 lbs)

 

Aiwa SC-E50 speakers

 A high performance 3-way speaker recommended for the M-501 system, the S.C.-E50 features an ultra-thin 20 µ titanium dome tweeter for dynamic highs. A carefully-matched equalizer extends high frequencies all the way to 40 kHz, with improved transient response. Both tweeter and midrange driver are equipped with separate attenuator controls. Particle board cabinet with 20 mm thick front panel suppresses undesirable cabinet resonance for extra-clean tone quality.

 

SC-E50 Specifications

Type:  3-way Bass-reflex type

Speaker Units:

Woofer:  200 mm (37-7/8" Cone-type

Midrange :  100 mm (3-15/16") Cone-type

Tweeter :  25 mm (1") Dome-type

Impedance:  8 Ω

Max. Input:  70 watts

Output Level:  91 dB/W/1 m

Crossover Frequencies:  1 kHz, 4 kHz

Frequency Response:  40 Hz - 40 kHz

Dimensions (W x H x D):  250 x 390 x 250 mm (9-7/8" x 15-3/8" x 9-7/8")

Weight:  8 kg (17,6 lbs)

Aiwa SD-L60 cassette deck

Cassette Deck

Equipped with IC logic controls, this compact high-performance deck proves that size need not place limits on versatile operation.

 

Motorized load/eject

To simplify cassette handling, the SD-L60 incorporates a new flywheel-assisted transport mechanism which loads the cassette into playing position with light finger pressure. A touch of the eject control and tapes are smoothly transported outward for removal.

 

Convenient remaining tape indicator

During recording and playback, the peak LED display may be switched to indicate the number of minutes remaining before the tape end. LEDs will light successively during play, when the final LED comes on, it indicates that 3 minutes remain for C-60 tapes, 4,5 minutes for C-90.

 

Remote control operation

A 24-pin connection terminal at the rear panel enables the SD-L60 to be utilized with the RC-R300 wireless remote control system - just one of the many exciting optionals offered with Aiwa mini components

 

Plus Features:

High-performance DX head

Metal tape compatibility

Dolby noise reduction system

Independently adjustable left/right channel record volume controls

Rec-sync terminal for automatic recording from Aiwa brand terminals

Timer record/playback facility.

 

Specifications

Motor:  DC servo motor

Head :  Rec/Power Bandwidth DX head

Wow and Flutter:  0,06% (WRMS); 0,18% (DIN)

Signal-to-Noise Ratio

Metall Tape :  64 dB Dolby on

Frequency Response

LH Tape :  30 - 15,000 Hz (25 - 14,000 Hz)

CrO₂ Tape :  30 - 15,000 Hz (25 - 16,000 Hz)

Metal Tape :  30 - 15,000 Hz (25 - 16,000 Hz)

Input Sensitivity/Impedance:

Mic :  0,5 mV/200 Ω  - 10 k Ω

Line In :  50 mV/50 k Ω

Power Requirements:  240 V 50/60 Hz

Dimensions (W x H x D):  250 x 71 x 243 mm ((-7/8" x 2-13/16" x 10")

Weight:  3,4 kg (7,5 lbs)

Aiwa AP-D60 turntable

Direct-Drive Turntable

One of the world's slimmest at just 71 mm in overall height, the AP-D60 incorporates Aiwa's new "Linear direct-drive" motor for reduced wow and flutter, low rumble.

 

New "Integrated Tonearm" system

Because headshell, cartridge and tonearm have been designed for maximum compatibility, this new system offers a number of advantages over conventional models. Lowered mass of the integrated unit effectively increases compliance, while at the same time lowering the tonearm's resonance "Q: to minimize adverse effects of record warp frequency.

 

Linear DD motor

Unlike previous direct drive designs which place the motor beneath the platter spindle, the AP-D60's unique construction drives the platter by means of alternating current generated by a ring of magnets on the platter's outer adge. This enables space reduction and provides smooth rotation with a minimum of vibration.

 

Automatic record size selection

A photoelectric sensor mechanism below the turntable mat detects the size of the record and relays this information to the tonearm mechanism. This system ensures that the stylus will be protected from the kind of "accidents" to which non-thinking automatic turntables are so prone.

 

Plus Features:

Full front panel control design

Adjustable pitch control with stroboscopic indicators

Auto-repeat facility

Solid, anti-howling cabinet material

Removable dust cover

 

Specifications

Drive System:  Direct drive system

Motor:  2-phase 120-pole linear motor

Turntable Platter:  Aluminum diecast

Platter Diameter:  304 mm

Platter Weight:  1,0 kg

Speeds:  33-⅓ and 45 rpm

Wow and Flutter:  0,035% WRMS

Signal-to-Noise Ratio :  70 dB (DIN-B)

Tonearm Section:

Type:  Straight tonearm

Effective Arm Length:  215 mm

Overhang:  15 mm

Tracking Error:  +3,5°;  -1,1°

Offseet Angle:  22,5°

Cartridge

Type:  Moving magnet (MM) type

Frequency Response :  20 - 20,000 Hz

Output Voltage:  3 mV

Separation:  18 dB (1 kHz)

Stylus:  0,5 mil diamond

Stylus Presure:2,0 g (Normal)

General Semiconductor:  22 Transistors; 14 Diodes; 2 FET; 3 ICs

Power Requirements:  AC 220 v, 50/60 Hz

Power Consumption:  5 W

Dimensions (W x H x D):  420 x 71 x 375 mm

Weight:  5,0 kg

Aiwa RC-R300 remote control

Infrared Wireless Remote Control System

Designed as an optional accessory for M-501, M-606, M-505 and M502 mini series, this remote control transmitter/receiver set provides great value in an outboard system. The compact hand-held transmitter from up to 6 meters )approx. 20 feet) away from the main components. It's a surefire way to enjoy the outstanding capability of Aiwa mini systems from the comfort of your easy chair.

Some of the many possible wireless operations:

Function selection (Aux, Tuner, Phono)

Tape monitor On/Off switching

Remote ststion selection, including one-touch tuning of up to 6 preset stations on ST-R50, 10 stations on AX-S50

Cassette deck transport modes (SD-L50, SD-L60)

Up/Down amplifier volume adjustment

Power On/Off switching

-20 dB muting On/off

Turntable start/cut )AP-D50, AP-D60)

 

Tuner controls operations

Because the ST-R50 and AX-S50 utilize an electronic synthesizer tuning system, remote control can be employed to select or change stations by manual Up/Down tuning or by pressing the selector button corresponding to the preset station on the tuner.

Preamplifier control operations

Besides raising and lowering of amplifier volume, the remote transmitter can be used to switch modes from Tuner to Tape, Aux to Phono, etc. Another remote function sure to come in handy at times is the -20 dB muting facility.

Other controls

Cassette deck transport modes and turntable start/cut operation can also be performed. As a useful feature to prevent misoperation of the remote unit ahile the system is making a recording for example, the transmitter unit can be independently switched off.

 

Specifications

Dimensions (W x H x D):  250 x 71 x 253,5 mm (9-7/8" x 2-13/16" x 10")

Weight:  2,3 kg (5,1 lbs)

Aiwa AP-D50 turntable

Direct-Drive Turntable

A completely new concept in hi-fi component design; the world's first automatic front-loading turntable. Whether you're aiming for convenience or performance, the ingenuity of the AP-D50 is hard to beat.

 

Operation

First set the speed and record size. Then after placing the disc on the loading tray, press the Play/Cut button and the disc is loaded into playing position by the motorized mechanism. Another touch of the Play button and the arm is transported over the record and play begins. As a safety device returns the arm to the armrest before permitting the loading tray to come out, the Eject button may be pressed either during play or after play has completed.

 

High performance direct-drive motor

For accurate rotation speed completely free from cogging or other undesirable effects, the AP-D50 employs a 4-phase 8 -pole linear torque motor with a frequency generator type speed detector. This compares the motor rotation speed to a standard rotation frequency and makes needed connections virtually instantaneously. A heavy 1,3 kg aluminum diecast platter contributes to the very low 0,028% (WRMS) wow and flutter, and rumble, another result of improved motor design, is a superb 75 dB (DIN-B).

 

Low resonance concrete resin sheet material

Even if a turntable chassis material has a high degree of resistance to acoustical feedback, its effectiveness can be drastically lowered by overlooking the section of the platter which actually contacts the record itself, the rubber mat. At the AP-D50's turntable sheet is a part of the auto-loading mechanism, Aiwa engineers were able to take advantage of the need for rigidity to develop a new material. This "concrete resin", a formulation of CaCO₃ and glass fiber in a polyester base, is able to offer superior resistance to low frequency resonance, enabling the AP-D50 to absorb larger doses of acoustical feedback with no detrimental effects on tone quality.

 

Adjustable Pitch Control

When singing or playing along with a musical instrument, some variation in playback speed may be desired to raise or lower the record's pitch. The pitch control knobs on the AP-D50 enables the unit's speed to be varied by as much as ±3%. The 4 rows or stroboscopic speed indicators at the platter edge are useful in setting speed to precisely 33 or 45 rpm.

 

Full manual operation

It's difficult to conceive of a turntable which can be operated manually without raising the dust cover, but the AP-D50 can do just that. An arm carrier lever located on the front panel permits manual, positioning or the arm when raise off the record surface. Naturally, hydraulic arm cueing is controllable from the front panel in both manual and auto modes of play.

 

Photoelectric auto return mechanism

Most turntables employ a mechanical device which activates auto return operation by detecting a buildup of stress on the arm; this stress unfortunately has the side effect of increasing distortion. The AP-D50 employs a sophisticated non-contact photoelectric system coupled to the arm's own motor, thus assuring uncompromised high performance.

 

Sensitive J-shaped arm with removable headshell

Designed for accurate tracking in the record groove with minimal tracking error and distortion, the low mass aluminum pipe arm takes a universal headshell for easy cartridge conversion. A high compliance MM cartridge with diamond stylus is included as standard equipment.

 

Repeat operation

With this button pressed in, record play will be repeated continuously until halted manually. An LED indicator has been provided to show that the repeat switch is set to on.

 

Exclusive rec-sync feature

When connected by cable supplied with most Aiwa cassette deck and portable stereo models, disc-to-cassette dubbing will commence automatically with the lowering of the AP-D50's arm on the record. Ask for a demonstration of this convenient feature at your Aiwa dealer's showroom

 

Specifications

Drive System:  FG Direct-drive system

Motors: 

1 x 4-phase 8-pole linear torque DD hall motor

2 x DC motor

Turntable Platter:  Aluminum alloy diecast

Diameter:  300 mm

Weight:  1,3 kg

Moment of Inertia:  220 kg/cm² (with turntable sheet)

Speeds:  33-⅓ and 45 rpm

Wow and Flutter:  0,028% (WRMS)

Signal-to-Noise Ratio:  75 dB (DIN-B)

Tonearm Type:  Static balanced type

Effective Arm Length:  215 mm

Overhang:  15 mm

Usable Cartridge Weight:  3,5 - 8,5 g

Maximum Weight:  18,5 g (with headshell)

Cartridge Type:  Moving magnet type

Frequency Response:  20 - 20,000 Hz

Output Voltage:  2,5 mV

Stylus Pressure:  2,5 g

Dimensions (W x H x D):  450 x 106,5 x 375 mm (17-3/4" x 4-3/16" x 14-13/16")

Weight:  7,2 kg (15,9 lbs)

 

Aiwa SD-L50 cassette deck

 Stereo Cassette Deck

A front-loading model with all the features of full-sized units, the SD-L50 nonetheless is an incredibly compact 25 cm wide by 10,7 cm high, making it one of the most compact cassette decks currently available.

Circuitry and head design have been reinforced to give superb sound quality from the new high performance metal tapes.  IC logic controls with a stroke of just 0,3 mm contribute to the positive feeling of operation, while the dual motor drive transport holds wow and flutter to below 0,04% (WRMS). The deck can also be set to perform automatic rewind/repeat play of one side of a tape up to 8 times or until halted manually. For accurate record level settings, 2 rows of 12 LEDs display peaks in 3 colors from -20 to -2 dB (green), 0 to +4 dB (yellow) and +6 to +10 dB (red)

By adding the optional MT-50 timer, the unit can be set for unattended recording, and in the timer's Tape Time mode, digital countdown display of the time remaining on the tape facilitates recording operations. The RC-R300 remote control system (another recommended optional) can be utilized for operation of all deck transport functions from up to six meters (20 feet) away.

Features:

Dolby noise reduction system

Smooth oil-damped cassette eject

Rec-sync operation with Aiwa turntable

Front panel mic and headphone inputs

Digital tape counter

 

Specifications

Track Type:  4-track, 2-channel

Tape Speed:  4,8 cm/s ±1,5%

Wow and Flutter

DIN 45500 :  less than 0,1%

WRMS :  less than 0,04%

Automatic Stop System:  Full Auto Stop

Automatic Shut-Off Action Time:  3 ±1 s

Pinch Roller Pressure:  350 ±30 g (3,43 ±0,29N)

Take-up Torque:  50 ±10 g-cm (490 ±98 mN-m)

FF and Rewind Torque:  155 ±65 g-cm (1520 ±637 mN-m)

FF and Rewind Time:  90 s (C-60 cassette)

Playback Output:  0,58 ±0,05V (Line, DIN)

Playback Noise: 

Cr02 Dolby NR Off/On :  less than 2,0/1,5 mV

LH Dolby NR Off/On :  less than 2,5 /1,5 mV

Rec/Pb Distortion: 

Metal :  less than 1,1%

CrO₂ :  less than 2,0 %

LH :  less than 1,2%

Rec/Pb SN Ratio (1 kHz, Unweighted, Dolby NR Off/on) :

Metal :  more than 45/45 dB

CrO₂ :  more than 45/47 dB

LH :  more than 42/43 dB

Channel Separation (1 kHz, 0 VU):  more than 35 dB

Crosstalk (1 kHz, 0 VU):  more than 65 dB

Erasing Ratio (400 Hz, 0 VU, +10 dB ):  more than 60 dB

Bias Frequency:  85 kHz

Frequency Response:

Metal :  25 -17,000 Hz

CrO₂ :  25 - 27,000 Hz

LH :  25 - 15,000 Hz

Motor: 

Capstan :  DC Servo Motor

Reel :  Dc Motor

Inputs Sensitivity/Impedance:

Mic :  0,3mV (max.)/200 Ω  - 10 k Ω  suitable)

Line In :  50 mV (max.)/50 k Ω

DIN :  0,1 mV/2,7 k Ω

Outputs Level/Impedance:

Line Out :  0,41V (0 VU)/50 k Ω

DIN :  0,41 V (0VU)/50 k Ω

Phones Output Impedance:  8 Ω

Semiconductors:  11 ICs; 66-69 Transistors; 39-40 Diodes; 29 LED

Power Requirements:  AC 220 V, 50 Hz or AC 240 V 50 Hz

Power Consumption:  18 W

Dimensions (W x H x D):  250 x 105 x 260 mm

Weight:  4,5 kg