What is stereo?
There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.
H.H. Scott '59
McIntosh has been manufacturing Integrated Amplifiers since 1963, with the current models representing the fifth generation of this popular combination design. The same design concepts and performance innovations that McIntosh has developed for their separate components have been incorporated into these combinations models.
The preamplifier sections reproduce traditional stereo audio with unsurpassed sonic accuracy without sacrificing control flexibility. Tone controls and loudness compensation are active circuits which provide precise adjustment and when set in the flat position, are electrically neutral and have no effect upon the signal. Flexibility is enhanced through full function remote control and traditional McIntosh ease of use is demonstrated by the layout and function of the controls.
The power amplifier section are identical in design to those of separate mcIntosh amplifiers, offering the same performance and traditional McIntosh design integrity. Both models provide illuminated power level wattmeters, which indicate the true power output delivered to the speakers, as well as other innovative circuit designs that together contribute to the legendary McIntosh sound.
Power Output: 100 watts at 4 ohm
Frequency Response: 20 – 20,000 Hz, +0, -0,5 dB
Total Harmonic Distortion: 0,005%
IM Distortion: 0,005%
IHF Dynamic Headroom: 4 ohms, 2.4 dB
Damping Factor: 40 at 4 ohm
Output Indicator: Meters
Output Interface: Direct Coupled
Phono: 2,5 mV rated output (0,5 mV IHF)
High Level: 250 mV reted output (50 mV ihf)
Power Amp IN: 2,5 mV rated output
Phono: 90 dB, below 10 mV input, (84 dB IHF)
High Level; 100 dB below rated output (91 dB IHF)
Max. Input Signal
Phono: 90 mV
High Level: 10 V
Bass/Treble Control: variable 12 dB boost to 12 dB
Inputs: 7 high level
Phono: 47 kohms and 65 pF Capacitance
High Level: 22 kohms
Phono: Dual Aux/MM Phono
Switching for 2 speakers;
Signal Processor loop;
2 tape Monitor switches.
Dimensions (W x H x D): 445 x 137 x 508 mm (17-1/2 x 5-3/8 x 20 in)
Weight (Net): 18,6 kg (41 lbs)
The DM110i is a 2-way vented box stand-mount/bookshelf system with high power handling capacity. Super sensitive, with high acoustical output yet affordable.
Modal analysis techniques revealed a simple bonding technique of corner joints could improve rigidity and reduce coloration. New thinking on crossover design has also led to the provision of higher safe power handling and fuse protection overload. The driver chassis have non-magnetised castings for all the bass midrange units ensuring resonant free high-level sound of the highest amplitude.
1 x 26 mm high-frequency driver with dome/coil construction of special polymide material
1 x 200 mm nominal piston dia and 26 mm high temperature voice coil with critically impregnated composite short fibre cone
Frequency Response: 70 – 20,000 Hz, ±3 dB
Sensitivity: 90 dB (2.83V/1m)
Power Handling: 10W – 75W
Dimensions(W x H x D): 260 x 490 x 250 mm
Finish: American Walnut or Black Ash vinyl
The JBL L222 loudspeakers systems offers extended frequency response, great dynamic range, outstanding musical detail, and exceptionally good stereo imaging.
Innovative and advanced engineering gives the L222 its exciting sound. JBL engineers created a design that aligns the acoustic centers of the individual loudspeaker elements while retaining the ideal flat baffle panel. Thus, all frequencies maintain the same time relationship to each other as they had when they were recorded, giving music the "presence" and immediacy of a live performance.
The combination of a 355 mm (14 ") woofer and large passive rediator gives the L222 awesome, deep bass. The specific tuning of the passive rediator adds warmth and presence to the mid-bass region, producing a dramatic and powerful effect at high volumes and an exceptionally pleasing sound, retaining full musical detail, at low listening levels.
Bold Visual Style
A tall, slim wedge the enclosure is a product of the JBL tradition of fine craftsmanship and attention to detail, a tradition extending back to the origins of the audio industry.
The L222 appears almost two dimensional an exciting presence, yet not visually overpowering. Its columnar array places the transducers, as nearly as possible at ear level, where they perform to fullest advantage. At the same time, the amount of floor space required is minimal.
Made of extensively braced 19 mm (¾") compressed wood (acoustically superior to solid wood) the enclosure features a veneer of American black walnut, hand rubbed with an oil/wax preparation to a lustrus finish.
JBL products are unique in combining high efficiency with high power capacity. The L222 produces sound at comfortable listening levels when driven by as little as 10 watts continuous sine wave, but for the best performance we recommend a more powerful amplifier. The L222 can be used with amplifiers rated up to 400 watts continuous sine wave per channel.
Nominal Diameter: 355 mm (14")
Voice Coil: 100 mm (4") copper
Magnetic Assembly Weight: 8,5 kg (18⅝ lb)
Flux Density: 1,2 tesla (12,000 gauss)
Sensitivity: 91 dB (1W/1m)
Nominal Diameter: 125 mm (5")
Voice Coil: 22 mm (⅞") copper
Magnetic Assembly Weight: 0,74 kg (1⅝ lb)
Flux Density: 1,35 tesla (13,500 gauss)
Sensitivity: 93 dB (1W/1m)
High Frequency Ring Radiator:
Horn Mouth: 64 x 32 mm (2½" x 1¼")
Dispersion: 90° horizontal, 45° vertical at 12 kHz
Magnetic Assemby Weight: 1,5 kg (3¼ lb)
Flux Density: 1,65 tesla (16,500 gauss)
Sensitivity: 105 dB (1W/1m)
Max. Recommended Power: 400 watts per channel
Nominal Impedance: 8Ω
Crossover Frequencies: 800 Hz, 5 kHz
System Sensitivity: 90 dB SPL (1W/1m)
Finish: Oiled walnut
Grille Color: Black
Dimensions (W x H x D): 1225 x 512 x 390 mm (48¼" x 20⅛" x 15⅜")
Weight (Net): 51 kg (112 lb)
The Integrated Amplifier which can switch a pure Class-A and AB class.
In addition to pure Class-A 15 W/ch, the change of AB class 60 W/ch is attained. And in order to raise the quality of AB class even to the level of a pure Class-A, the high speed high fT transistor which took high high region cut-off frequency with 90MHz is adopted as the power stage. Switching distortion which is a fault of AB class is banished to a limit.
Marantz PM-4 Esotec Series, Integrated Amplifier
Class: A-B Sine Power:
Class A: 15 W + 15 W (8Ω),
Class A-B: 60 W + 60 W (8Ω)
THD: 0,015% (20Hz - 20kHz at the time of an 8Ω load intensity and an Output power)
Cross modulation distortion (60Hz:7kHz=4:1): 0.015% (at the time of an 8Ω load intensity and an Output power)
Dumping factor (an 8Ω load intensity, 1kHz): 70
Transmission range: 5 - 100,000 Hz +0 -2 dB
Frequency response: 20 - 20,000 Hz -0, 3 dB
Bass: ±10dB (100Hz)
Treble: ±10dB (10kHz)
Phono 1, 2 MM: 2.5 mV/47 kΩ
Phono 2 MC: 2 00 mV/100Ω
AUX, tuners, tape 1, 2: 150 mV 25 kΩ
RIAA phono: 20 - 20,000 Hz, ±0.25 dB
Phono MM: 84 dB
Phono MC: 64 dB
AUX, tuners, tape: 104 dB
Phono max. Input: 330mV (MM); 25 mV (MC) at 1kHz
Inputs: 2 x phono, switchable phono 1: MM + MC, Phono 2: MM, 2 x tape
Outputs: 2 x speaker, headphones
Voltage: 110/120/220 V AC, 60/60 Hz
Power consumption: 150 watts
Dimensions (W x H x D): 416 x 117 x 334 mm
Weight: 9.5 kg
Two of the most versatile auto reverse decks on the market still wouldn't give you the multifunction operation possibilities available from just one of AIWA's new Auto Sorting double cassette decks. Totally in class by itself, the exciting new AD-A70 pffers quic reverse recording and playback in BOTH decks to allow a wide variety of automatic, microprocessor controlled operations like normal or double speed dubbing from up to 5 cassettes to 1 and random programmable playback from up to 5 cassettes. It's a fact: no other deck available gives you this much convenience and versatility.
What's Auto Sorting?
The answer can be found in Deck I. Inside there's an entirely new system that holds up to 5 cassettes in a special cassettee block. Following the commands input with the front-panel controls, the mechanism actually "sorts" the tapes for random programmed playback and sequential timed recording.
Quick Reverse Recording and Playback
15 Selection Random Programmed Playback
Sequential Playback of 5 Tapes
Automatic Programmed Synchro-Dubbing; Normal or High-Speed
Continous Timed Recording of up to 5 Cassettes (Deck I)
AIWA's flat keyboard operation panel with feather-touch full IC logic controls.
Dolby B and C noise reduction system
Electronic Tape counter
Auto tape selector (Metal/CrO₂/Normal)
Music Sensor (Deck II)
Track: 4-track, 2-channel
Tape Speed: 4,8 cm/sec. (1-7/8 lps)
Frequency Response (-20 VU):
Normal: 20 - 14,000 Hz; 30 - 13,000 Hz
CrO₂: 20 - 15,000 Hz; 30 - 14,000 Hz
Metal: 20 - 16,000 Hz; 30 - 15,000 Hz
S/N Ratio: 78 dB (Dolby C, Metal)
Wow and Flutter: 0,06%
Forward and Rewind Time: 90 sec
Head: REC/PB: DX Head x 2; Erase: Double-gap Ferrite Head x 2
Motors: DC servo motor x 2 DC motor for Auto Sorting mechanism x 2
Input Sensitivity/Impedance: 50 mV/47kΩ
Output Level Impedance:
Line Out: 0,38 V/47 kΩ
Headphone: 0,5 mW/8Ω
Power Source: AC 120/220/240 V, 50/60 Hz
Dimensions (W x H x D): 330 x 107 x 348 mm (13" x 4¼" x 13⅝")
Weight: 6,0 kg (13,2 lbs)
KA-3700 Integrated Stereo Amplifier
The lowest distortion of any amplifier in its class and full power down to 20 Hz. Overal performance you would expect in a much higher priced amplifier.
20 watts per channel, min. RMS both channels driven at 8 ohms, 20 Hz to 20 kHz, with no more than 0,08% THD.
Oversize capacitors and high-output power transistors.
Power stability with a direct-coupled complementary differential amplifier.
Low-noise, direct coupled phono equalizer (78 dB).
Clik-stop tone controls.
Low boost loudnest control for realistic listening at low and medium volume.
Oversize Volume and Selector controls.
Optional CB-3 walnut veneer cabinet, B-5 walnut veneer side panels, or D-5 carrying handles available.
Power Amplifier Section
Power Output: 2 x 20 W, at 8Ω, 20 Hz - 20 kHz
Dynamic Power Output: 100 watts 4Ω
Total Harmonic Distortion: 0.08% at rated power into 8Ω
Intermodulation Distortion: 0.04% at rated power into 8Ω
Power Bandwidth: 10 Hz at 50 kHz
Damping Factor: 30 at 8Ω
Speaker impedance: 4Ω to 16Ω
Phono : 2.5 mV/50 kΩ
Tuner: 150 mV/10 kΩ
Tape , Aux: 150 mV/50 kΩ
Signal to Noise Ratio:
Phono : 72 dB (for 2,5 mV input); 78 dB (for 5,0 mV input); 84 dB (for 10 mV input)
Tuner, AUX, Tape : 100 dB for 150 mV input
Maximum Input Level Phono: 150 mV (at 1 kHz, 0,8% THD)
Phono: RIAA standard curve ±0,4 dB
AUX, Tape: 20 Hz to 20 kHz ±1 dB
Bass: ±7,5 dB at 100 Hz
Treble: ±7,5 dB at 10 kHz
Loudness Control: 9 dB at 100 Hz (at -30 dB Volume level)
Power Requirements: 120/240 V, 50/60 Hz
Power Consumption: 185 watts
Dimensions (W x H x D): 380 x 140 x297 mm (14-31/32" x 5-1/2" x 11-11/16")
Weight: 5,8 kg (12,7 lbs) Net
Input Trim 20 dB range for tuner, disc, aux 1, aux 2, tape
Input Trim Bypass Switches
Phono Input Impedance selector (opt.)
Protection System bypass switch
Balanced Input Level 20 dB range
Tape output level
Balanced High Level operation switch
Rear Panel Connectors:
Signal Ground post (gold)
5 RCA Input connector sets (gold)
Balanced Input Neutrik XLR connectors for aux 3 (gold)
Tape input and output RCA connector set (gold)
Balanced output RCA connectors for non-inverting, inverting
Balanced output Neutrik XLR connectors (gold)
DC Power Hi-Rel input connector
Input Compliment: 7 Inputs - tuner, disc, aux 1, aux 2, aux 3, (balanced, phono) optional
Output Compliment: 4 ouputs - normal, inverted, balanced, tape
Output Attenuation: 32 step conductive plastic, modified log taper
Output Balance: 15 step attenuator switch with center position bypass
Mute Switch: 0 - 20 dB attenuation
High Level Trim: 0 to 10 dB attenuation for each channel all high level inputs, with attenuation bypass switches.
Mode Switches: Stereo/mono, absolute phase
Input Selections: 6 plus tape monitor
Protection Mode: DC Offset, oscillation
Method: Crowbar output relays
Sensitivity: 20 mV continuous DC
Recovery: Approx. 10 seconds
Chassis Temperature: Internal 48° C @ 25° room temp.
Model 201 Balanced Output Module
Fully Balanced Operation: All D.C. coupled
Frequency Response (any level to 36 V RMS):
DC to 4 MHz, -3 dB
DC to 2.5 MHz, -0.10 dB
Slew Rate: 1000 V/us or greater
Rise Time: 70 nanoseconds
Distortion: Less than 0.01% THD and IM
Crosstalk: Greater than 90 dB
Noise: 105 dB A Weighted, ref 100 mV @ 1 KHz
Output Voltage: 1.6 VRMS, 100V P-P max.
Output Current: 1 Amp max. per channel, balanced out
Gain: 40 dB unbalanced, 34 dB balanced
DMS-20 Power Supply Technical Data
1) Dual ± 40 VDC @ 0.6A
2) Dual ± 40 VDC @ 0.6A
3) Single ± 5 VDC @ 1A
4) Single ± 10 VDC @ 1A
Noise and Ripple: Less than 200 mV peak to peak
Reserve Capacity: 180 Joules per supply (±40 VAC)
Input Mains Voltage: 100, 120, 220 V AC ±10% @ 47.5 Hz to 440 Hz (factory set)
Power Consumption: 80 watts normal, 175 watts max.
Protection: Short circuit, over voltage, line transient protected
DMC-20 Preamplifier Mechanical
Weight: 5,25 kg (12 lbs)
Dimensions (W x H x D): 483 x 635 x 317 mm (19" x 2½" x 12½")
DMS-20 Power Supply Mechanical
Weight: 49 kg (22 lbs)
Dimensions (W x H x D): 483 x 635 x 318 mm (19" x 2½" x 12½")
Pioneer's advanced new open reel tape deck, the RT-1020L, is designed for tape enthusiasts who wouldn't look or listen twice at even the finest cassette decks, and who are seeking the ultimate of stereo tape performance. Luxuriously constructed with only the finst materials, built for years of rugged and dependable use under all operating conditions.
The RT-1020L offers remarkable cost/performance adventages, a variety of operating conveniences and the versatility that only an expensive machine can provide. Mechanically sound from three-motor tape transport, including six-pole induction motor, to extra-thick chassis and die-cast framework, the RT-1020L delivers the kind of reliability that only a studio engineer would appreciate. precision performance is another aspect of its all-around dependability, for this deck employs a 4/8 pole two-speed hysteresis synchronous motor, unusually accurate capstan - and then adds the new contour-less hyperbolic-type tape heads for high sensitivity and signal-to-noise ratio.
Indicative of its true professional capability, the RT-1020L accepts the large 10½ inch (267 mm) reels, rare for a deck of this attractive price. These extra-size reels permit twice the recording and playback time of ordinary 7 inch reels. You can thus record extra-long symphonies, or other musical performances, without reel or tape changing. And then for four-channel reproduction, the unit is equipped with a four-track in-line tape head and four-channels tapes now on the market. There are many other features, too, that make the Rt-1020L the tape deck buy of the year, no matter which other deck you might have been thinking of buying - and no mater how unlimited is your tape budget. For true tape deck value, no one ever has surpassed Pioneer.
3-motor and 3-head Open Rell Stereo tape Deck
System: Stereo recording & playback, 4-channels playback, solenoid operated control
1 x 4-track, 4-channel playback operations;
1 x 4-track, 2-channel recording;
1 x 4-track, 2-channel erese
For Reel: 6-pole inner rotor induction motor x 2
For capstan: 4/8-pole hysteresis synchronous motor x 1
Tape speeds: 7½ and 3¾ ips (19 and 9,5 cm/s)
Wow & Flutter: 0,08% WRMS (7½ ips); 0,10% WRMS (3¾ ips)
S/N ratio: more than 55 dB
Distortion: less than 1%
40 - 20,000 Hz, ±3 dB (7½ ips);
40 - 12,000 Hz, ±3 dB (3¾ ips)
Crosstalk: more than 60 dB
Stereo channel separation: more than 50 dB
Erase ratio: more than60 dB
Recording bias frequency: 125 kHz
Microphone: 0,25 mV to 80 mV/20 kΩ (1mV reference)
Line input: 50 mV t0 25 V/100 kΩ (316 mV reference)
DIN: 15 mV to 1,5 V/1,5 kΩ
Line: 316 mV/50 kΩ load with output level controlat max. Output impedance 3,3 kΩ
DIN: 316 mV/50 kΩ load with output level controlat max. Output impedance 3,3 kΩ
Headphone: 40 mV/8 kΩ with output level controlat max. Load impedance 4 - 16 kΩ
Features: 3-step bias selector, 2-step equalizer selector
Power requirements: 110, 120, 130,220,240 V AC, 50/60 Hz
Power consumption: 115 W
Dimensions (W x H x D): 440 x 431 x 227 mm (17-5/16" x 16-31/32" x 8-15/16")
Weight: 21 kg (46 lb 3 oz) without package
A well designed tape transport mechanism will not distort mechanically. It is insensitive to shocks and vibrations and will retain these qualities over a wide range of temperatures. Therefore, REVOX B77 tape recorders use diecast parts for the motor chassis, the side bearers, the crossmember and for the head block and the pinch roller arm. This ensures exceptional stability for the precision tape guiding system and the sound heads, as well as for the motors and the brake assembly. The motors are sturdy AC asynchronous types - unbeatable in simplicity and reliability - thus especially suited for heavy duty use.
Magnetic tape recorders are an outstanding example of the perfect combination of precision mechanics and top performing electronics. Even the best electronic circuitry would soon become worthless if the original precision in tape guiding is lost as a result of insufficient long term stability. One of the basic requirements, therefore, is to ensure stable performance for years with a rigid mechanical design which disregards the possible advantages that may lie in 'such tempting advertising claims as 'feather weight' and "slim line?!
Speed control via servo electronics
In 1967 STUDER REVOX had already ushered in the age of electronic capstan speed control for domestic tape recorders. Ever since then many have tried to copy it yet they have never been able to match its simplicity and effectiveness. The principle of electronically regulating a sturdy asynchronous motor by means of a separate precision reference has stood the test so well that it has been adopted for the STUDER professional tape recorders years ago. The capstan motor and its precision reference combined with the inductive speed sensor and its control circuits form a regulating loop which is highly insensitive to variations in power line voltage and frequency or changes in load. This system, which has proven its reliability in more than half a million tape drives, combined with ideal tape guiding results in outstanding motion stability (freedom from wow and flutter which remains unchanged for years. The remarkable mechanical and electronic stability of the complete tape transport mechanism makes it well suited for mobile operation by powering from car batteries in conjunction with an inverter.
For pitch matching or to achieve special effects, motor speed can also be varied continuously over a wide range with the help of an external speed control. The Revodur all metal heads for recording and playback, the erase head, the infrared tape sensor and the tape guides; all these components are mounted on a rigid die-cast frame. A fourth magnetic head can be fitted to record automatic slide synchronizing control signals (DIA/DHA/FH). These signals are recorded within the guard band of the tape allowing their use with normal stereo signals. As far as development of magnetic sound heads is concerned, STUDER REVOX is looking back on an experience which equals that of building tape recorders. Our experts manufacture all metal heads for REVOX B77 tape recorders and for professional sound recorders. The special alloy Revodur ensures excellent magnetic properties and outstanding wear characteristics. The shape of the head's face is designed to ensure a "ruler flat" response down to the lowest audio frequencies. Ease of editing
The practical edit facility is standard equipment on each Revox B77 recorder. By operating the sliding button, the tape is brought into contact with the heads, the playback amplifiers become activated and the fast wind buttons respond only as long as they are held depressed. This facilitates motor assisted searching for the edit point while final tape positioning is then performed manually. The thoughtful design of the lower control panel facilitates easy access to tape heads for accurate tape marking. An ingenuously conceived edit mode facilitates motor assisted tape shuttling and final manual locating of the exact edit point. B77 versions
Part of the B77 head block, showing the roller bearing tape guide and infra red tape end detector. The integrated tape cutter helps to make editing a simple task. Track configurations: Half track (S2):
Half track models are always selected when tape splicing (editing) is required. Because of the large track width of 2mm, these models feature excellent ratings with respect to frequency response and treble dynamic range. The half track version can be equipped with slide control electronics and an additional sound head. The high-speed version of the half track machine is ideally suited for applications requiring maximum audio quality (e.g. as effects machine in audio or film production). The quarter track (S4): The advantage of quarter track machines over half track machines is the double tape capacity. The quarter track B77 is suited for applications where long playing times (up to six hours on the standard speed B77) combined with excellent audio quality is essential. The quarter track machines can also be equipped with side control electronics and an additional sound head. Because of the narrower track width, the audio specifications are in certain areas slightly inferior to those of half track machines. The quarter track configuration interleaves the two stereo tracks. This allows the reels to be "turned over" allowing double the recording time The half track configuration uses the full width of the tape to lay down a stereo image. (excluding the guard band) Standard version of B77
Tape transport mechanism:
Three motors; 2 AC reel motors; 1 AC capstan motor, electronically regulated
9,5 and 19 cm/s, electronic switching, speed accuracy ±0.2%
6,5 and 28 cm/s external speed variation
Wow and flutter (DIN 45507):
At 9,5 cm/s <0.1%,
At 19 cm/s <0.08%
Tape slip: Maximum 0.2%
Up to 26,5 cm (10.5”) diameter, minimum hub diameter 6 cm (2.36”)
Tape tension switchable for small hub diameters
Approximately 135 seconds for 1100 m (3,600 ft) of tape
Tape transport control:
Integrated control logic with tape motion sensor provides for any desired transition between different operating modes. Electronic motor control (without brushes); all functions can be remote controlled
9,5 cm/s (3.75 ips): 90/3180 microsec
19 cm/s (7.5 ips): 50/3180 microsec
Frequency response (measured via tape at -20 dB VU):
9,5 cm/s (3.75 ips): 30 Hz - 16 kHz +2, -3 dB and 50 Hz - 10 kHz ±1.5 dB
19 cm/s (7.5 ips): 30 Hz - 20 kHz +2, -3 dB and 50 Hz - 15 kHz ±1.5 dB
Max. recording level: 514 nWb/m corresponds to +6 dB VU
VU meter to the ASA standard, with LED peak level indicators
9,5 cm/s (3.75 ips): <1% (0 dB VU, 257 nWb/m); <2,5%, (6 dB VU, 514 nWb/m)
19 cm/s (7.5 ips): <0,6% (0 dB VU,257 nWb/m); <2%, (6 dB VU, 514 nWb/m)
Signal to noise ratio (ASA A weighted):
9,5 cm/s (3.75 ips) >63 dB
19 cm/s (7.5 ips) >69 dB
9,5 cm/s (3.75 ips) >60 dB
19 cm/s (7.5 ips) >63 dB
Crosstalk (at 1 kHz):
Stereo >45 dB,
Mono >60 dB
Erase depth: >75dB at 19 cm/s (7.5 ips)
Inputs per channel:
Mic Low: 0.15 mV/2,2 kΩ for 50 - 600 Ω impedance microphones
Mic High: 2.8 mV/220 kΩ for high impedance microphones
Radio: 2.8 mV/20 kΩ
AUX: 40 mV/1M Ω
Outputs per channel (Level at 6 dB VU, 514 nWb/m):
Output: 1.55 V/390 Ω
Radio: 1.55 V/4,7 kΩ
Phones: 5.6 V/220 Ω
Remote control mechanism
Remote control of variable tape speed
Slide projector or crossfade unit (electronics optional)
11 ICs, 1 opto-coupler, 4 triacs, 60 transistors, 33 diodes, 5 LEDs, 2 full wave rectifiers, 3 relays
Electric current supply:
100 - 240V 50/60 Hz
Voltage selector for 100V, 120V, 140V, 200V, 220V, 240V
Maximum consumption power: 80 watts
Main fuse 120V 1A slow-blow, 240V 0.5A slow-blow
Dimensions (W x H x D): 452 x 414 x 207 mm
Clearance required for 10.5” reels height 464 mm, width 538 mm
Weight: Approx. 17 kg