Fisher MT-6225 turntable

A Major Technological Advance in Turntable Engineering MT6225

 

The worlds first linear motor direct drive turntable

 

One of the problems in improving turntable performance, especially with direct drive systems, is the difficulry of reducing woa and flutter due to cogging action of the direct drive motor.

With its limited number of poles (usually 12) , a conventional direct drive system has an inherent problem, at its relatively slow operating speed, of low starting torque.

To solve these problems and improve turntable performance, Fisher has engineered the linear motor, 120 pole direct drive systems.

 

The Platter is The Motor

In effect, the platter becomes the motor of the MT6225. and Fisher's 120 pole design practically eliminates cogging action and wow and flutter - to a totally inaudible 0,03%

And the linear motor direct drive system further reduces turntable rumble to an extremely low -70 dB, so far below hearing level to be completely inaudible.

 

How it works

A continuous ring of magnetic material, containing, 120 magnetic poles, is attached to the inside bottom rim of the platter. As the platter rotates, each pole opposes one of the electromagnetic drivers on the base top. Each of the 120 poles is attracted or repelled  as it passes the driving electromagnets for smooth, stable operation.

An electronic sensing device monitors the platter's speed, and acts as a servo feedback control to maintain practically perfect speed accuracy. A built-in strobe and pitch controls are provided.

The speed accuracy of the system is independent of line voltage fluctuations.

 

The Arm

The handsomely styled Fisher MT6225 is equipped with a professional type horizontal and vertical gimbal suspended tone arm for performance commensurate with its technologically advanced design.

The arm accepts all standard cartridges. The auto-return system which returns the arm to rest at the end of a record is also an advanced design with no restraints on its lateral or vertical motion during operation.

The arm has adjustable tracking force with calibrated settings from 0,6 to 3,5 grams. There's also precise variable anti-skate, and viscous damped cueing. The MT6225 also has an aluminum alloy die cast platter, and a walnut grain vinyl veneer wood base.

 

Specifications

Motor:  Linear Direct

Drive:  Direct drive

Wow and Flutter:  0,03% (WRMS)

Rumble:  -70 dB

Speed Variation:  ±0,5%

Speed Control Range:  ±3%

Tracking Force Range:  0,6 - 3,5 grams

Platter:  Die cast aluminum

Platter Diameter:  12-15/16"

Platter Weight:  2,2 lbs

Record Speed Selector:  33-⅓ and 45 rpm

Tone-arm:  S-shape form

Resonance:  less than 10 Hz

Effective Length:  222 mm

Bearing Type

Horizontal :  Thrust

Friction Sensitivity :  0,15 gram

Vertical :  Pivot

Friction Sensitivity :  0,2 gram

Max. Tracking Error:  ±1,5°

Anti-skate:  adjustable control

Cueing:  Viscous damped

Power Requirements:  110V - 220 V Ac 50/60 Hz

Dimensions (W x H x D):  17-3/4" x 6" x 14-1/4"

Weight:  17,7 lbs

Fisher MT-6360 turntable

Studio Standard Linear Direct Drive Turntable with Automatic program Select System and Remote Control

 

120-Pole 3-Phase Linear Motor Direct Drive System

Direct drive replaces the conventional transmission system that often gives rise to rumble and wow and flutter. But the Fisher linear motor puts the direct drive control to maximum advantage by dramatically simplifying it. In this advanced system, the truntable platter itself serves as the rotor of the motor, and all complex circuitry is mounted in the base of the turntable. A magnetic ferrite band with 120 poles embedded in it runs along the rim of the platter. Three field coils oppose these poles driving the platter with a constant force for smoother rotation. An electronic  servo system maintains this speed accuracy within narrow tolerances. The result of this elegantly simple design is impressive reliability and wow and fluter rating of a mere 0,03%.

Separate Platter and Arm Motors

The linear drive motor is freed to work on precision platter drive only while greater tonearm trackability is ensured by a separate motor incorporated to handle arem movement only.

The MT-6360 has a viscous-damped "floating" tonearm with a specially designed integral stereo magnetic cartidge,and there's even a muting circuit to eliminate that annoying "pop" you hear when the tonearm touches down.

 

The micro processor controlled turntable that automatically selects and plays the tracks you want to hear - Push the wirelles remote control button and select track1, track 2, track 4 or any other. The micro processor automatically moves the arm to play te selected track. You can repeat the same track, select another or play the entire record over again all by wireless remote control. And there's an LED readout to indicate the track being played. Since you can select the music you want to record, making tapes from  your record collection becomes easier and more convenient than ever before.

The MT-6360 Linear Drive turntable is not only great for really enjoying the music you like, but it's a sophisticated audio component with some extraordinary design features.

 

Automatic program selector

Remote ontrol

Digital LED display

Auto record size and presence indicator

Auto muting circuitry protects speakers

Sturdy metal cabinet absorbs and insulates

Fully automatic operation with front-panel controls

Heavy aluminum die-cast platter

Built-in stroboscope and pitch controls

Auto repeat function

 

Specifications:

Type:  Direct drive, programmable turntable with full automatic operation

Motor:  Linear motor

Speeds:  33-1/3 and 45 rpm

Wow and Flutter:  0,03%

Signal-to-Noise Ratio:  65 dB

Tonearm Type:  Static balanced J-type pipe arm

Effective length:  222 mm

Overhang:  17 mm ±2

Cartridge Type:  VM type, MC-100S

Frequency Response:  15 to 20,000 Hz

Separation:  more than 20 dB 91 kHz)

Output Voltage:  2,5 mV ±3 dB 91 kHz)

Stylus:  0,6 mil diamond , ST-100SD

Tracking Force:  2,0 ±0,5 g

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

Power Consumption: 17 watts

Dimensions (W x H x D):  422 x 135 x 337 mm

Weight:  8,2 kg

Remote Control Box

Power Source:  4 x AA size batteries

Operation Range:  about 10 m (straight)

Dimensions (W x H x D):  65 x 30 x 149 mm

Weight:  114 g (only box)

Fisher MT-6320 turntable

Studio Standard Semi-Automatic Direct Drive Stereo turntable with DC Brushless Servo Motor

 

Direct drive system eliminates transmission elements to suppress rumble and increases service life.

DC brushles motor with servo control to maintain rotational speed accuracy

Built-in stroboscope works with servo to maintain speed accuracy and provide pitch control

Pitch controls allow platter speed adjustments of ±3%

Mechanical speed selector for increased reliability

Anti-skating and tracking force controls

Lever-type cue control helps protect records and stylus

Heavy aluminum diecast platter smooths rotation

Auto return system with reject button

Front panel controls for easy operation with dust cover down.

 

Specifications

Operation Type:  Semi-Automatic

Motor:  DC Brushless with servo

Drive System:  Direct Drive

Speeds 33-1/3 and 45 rpm

Wow and Flutter:  0,035% (WRMS)

Rumble:  -68 dB (DIN 455 39B)

Platter Diameter:  320 mm

Platter Weight:  1,0 kg

Tonearm

Shape:  S-Form

Effective length:  222 mm

Tracking Error:  ±1,8°

Power Requirements:   120 V 9220/240V ) 50/60 Hz

Power Consumption:  6 watts

Dimensions (W x H x D):  440x 140 x 365

Weight:  5,2 kg (12 lbs)

Fisher DD-280 cassette deck

Fisher Direct Drive … the most technically advanced tape drive system

In the new Fisher DD280 cassette deck, Fisher has replaced the conventional belt-drive system with a high-torque 18-pole brushless, coreless, direct drive DC flywheel motor. The motor shaft is the tape transport capstan itself. The result is a silent, one-piece direct drive system that glides at a stable 360 rpm. Wow and Flutter: are reduced to an incredibly low 0,04%. Gone forever are belt wear problems resulting in speed change, belt breakage and replacement. For long term reliability direct drive is the answer.

Feather touch electronic solenoid controls.

Don't look for "clunky" levers on the DD280. transport functions are actuated by sensitive solenoid electronic switching. IC logic circuitry assures instant, positive action. You can go directly from rewind to fast forward to play, without having to manually stop between functions. LED indicators signal mode of operation.

Metal tape compatibility.

The DD280 is also metal tape compatibile. The new metal particle tapes offer a marked improvement in Signal-to-Noise ratio and dynamic range over previous tape formulation. With its metal EQ and bias settings, plus high performance MX/Ferrite heads, the DD280 produces tapes of stunning accuracy. With metal tape, the DD280 delivers an impressive frequency response of 30 Hz - 20 kHz.

Low in profile. And high on features

The low-profile DD280 has everything you'd expect in a professional-quality cassette deck. Calibrated input level controls. Dolby Noise Reduction. Large scale dual-range VU meters. Peak level LED indicators and more.

It's what you'd expect from the new Fisher.

Fisher invented high fidelity from many years, and never stopped moving ahead. The new DD280 is a perfect example. Part of the new Fisher. Where the only thing about us that's old is our dedication to quality and craftsmanship.

Fisher MT-6330 turntable

Linear Motor Direct Drive Turntable

Fisher's model MT-6330 "Studio Standard" semi-automatic direct-drive turntable makes use a linear drive in which the platter is actually the rotor of the motor. The company claims that this 120-pole linear drive design virtually eliminates "cogging action" and greatly reduces rumble. The unit offers convenient front-panel operation, variable calibrated anti-skate control, stylus pressure adjustment, strobe light and speed controls, viscous damped cueing, automatic tone arm return and shut-off, and a 2,2 pound cast aluminum platter.

Tracking force adjustment is by means of a calibrated counterweight.

Strobo Light

Automatic functions:  Tone arm return at end of record

Auto Functions: Stop, Reject

Manual Functions: Start, Stop

Specifications

Motor:  120-pole Linear AC Servo

Drive System:  Direct-drive

Wow and Flutter (WRMS):  0,035%

Rumble (DIN 45539B):  -70 dB

Speed Variation:  ±0,5%

Speed Control Range:  ±3%

Tracking Force Range:  0,6 - 3,5 grams

Platter Diameter:  314 mm

Platter Weight:  1,0 kg

Record Speeds:  33 and 45 rpm

Tone Arm

Resonance:  less than10 Hz

Balance Adjustment:  Counterweight

Effective Length:  222 mm

Shape:  S-form

Bearing Type

Horizontal:  Thrust

Friction Sensitivity:  0,18 gram

Vertical: Pivot

Friction Sensitivity:  0,22 gram

Max. Tracking Error:  ±1,8°

Anti-Skate Control:  Calibrated adjustable

Cueing:  Viscous Damped

Cartridge Supplied:  Stereo magnetic (MG-35V)

Power Requirements:  AC 110/120 V 50/60 Hz

Dimensions (W x H x D):  440 x 380 x 138 mm

Weight:  5,2 kg

The Fisher XP-33 speakers

The Little Giant Speaker System is moderately priced, yet suitable for use with any high fidelity system. Its attracyive walnut frame and matching grille blend perfectly with any room decor. For those "problem" installations with severe space limitations, the Fisher Little Giant is unquestionably the first and only choice.

Here is a bone tide advancement of the state-of-the-art; the smallest high-efficiency speaker system ever designed. Into a space slightly larger than a shoebox, Fisher engineers have built a heavy-duty 6-inch bass speaker, a 2-1/2-inch treble speaker, and a capacitance-resistance-type network with crossover at 2,000 Hz.

The bass speaker has a 2-pound magnet structure, a half-roll surround and an aluminum core, one-inch-diameter voice coil. Free-air resonance is a low 35 Hz. The high-frequency speaker has a unique plasticized-surround and polyurethane center for precise definition of "highs", without the shrillness associated with compact systems using artificial correctives.

Specifications

Frequency Response:  38  - 18,500 Hz

Recommended Amplifier Power:  10 - 20 watts

Low Frequency Speaker:

Diameter :  6 inch

Resonance :  35 Hz

Magnat Structure :  2 pounds

Voice Coil Diameter :  1 inch

High Frequency Speaker:

Diameter :  2-1/2 inch

Voice Coil Diameter :  8/16 inch

Magnet Structure :  1/4 pound

Dispersion :  120 degrees

Crossover Frequency:  2,000 Hz

Impedance:  8 ohms

Dimensions (W x H x D):  7" x 13" x 6"

Wight:  10 pounds

Cabinatry:  Available in Walnut

Can be used Horizontally or Vertically

The Fisher XP-55 speakers

Compact Free-Piston Speaker System

Though it measures only 20" by 10" by 9" deep, the Fisher XP-55 incorporates a bass speaker that is very close to that of large speakers and at the same time free of artificial correctives like shaping networks that after the bass output of the amplifier.

This is an 8-inch unit with a magnet structure weighing 3 pounds, a flux density of 12,500 gauss and a totally new suspension system utilizing a long-throw jnverted half-roll surround. Free-air resonance is 33 Hz, an almost incredible figure for an 8" driver. The 2-1/2 inch tweeter has a new low-mass cone made of a combination of the usual fibrous materials resulting in peak-free response out to 19,000 Hz without coloration.

The completely enclosed baffle is heavily damped with Acoustiglas packing. The result is fundamental bass response down to 37 Hz, without doubling.

Specifications

Frequency Response:  37 - 19,000 Hz

Recommended Amplifier Power:  10 - 30 watts

Low Frequency Speaker:

Diameter ;  6 inch

Resonance ;  33 Hz

Magnat Structure :  3 pounds

Voice Coil Diameter ;  1-1/4 inch

High Frequency Speaker:

Diameter :  2-1/2 inch

Voice Coil Diameter :  8/16 inch

Magnet Structure :  1/2 pound

Crossover Frequency:  1,000 Hz

Impedance:  8 ohms

Dimensions (W x H x D):  10" x 20" x 9"

Wight:  20 pounds

Cabinatry:  Available in Walnut

Can be used Horizontally or Vertically

Fisher CR 4029

Recent developments have revolutionized tape technology. And all the technology is the new Fisher CR 4029. some of the new cassette decks offer one or two of these technological innovations - Fisher offers them all in one integrated package.

Two Speed Operation

You can use the CR 4029 at the standard 1-7/8 ips speed and you'll have outstanding recordings, or switch to the new high-speed 3-3/4 ips and get an incredible 30 Hz - 20 kHz ±3 dB frequency response (using normal tape). What's more, recording at high speed drastically reduces wow and flutter and tape dropout. Since a C90 cassette will record a full album at 3-3/4 ips, high speed recording is still economical.

Metal Tape

Another of the mervelous innovations is metal tape. Metal tape demonstrably improves frequency response. Combine it with the new high speed and you'll get a hard-to-believe 30 Hz -25 kHz ±3 dB frequency response with virtual freedom from distortion.

Three VHT/Sendust Heads with Dual process Dolby

All this new technology requires new recording, playback and erase heads. So Fisher engineers came up with our new VHT heads to bring out the best potential of metall tape and high speed. Because the CR 4029 is a three-head design, each head can be optimized for a specific function. There's wide 4 µm gap VHT record hesd for the best possible Signal-to-Noise ratio. A narrow 1 µm gap VHT playback head improves frequency response. And a Sendust alloy erase head overcomes the problem of hard-to-erase metal tape.

The separate record and playback heads allow you to monitor as you record - an absolute must for serious recording. And Dual process Dolby gives you the advantage of Dolby noise reduction in both the record/playback and off-the-tape monitoring mode.

The CR 4029 has all the options.

Why have only part of the new tape technology when you can have all of it? Use metal tape at the standard speed for high performance with long play. Or use normal tape at high speed for both economy and superior performance. Or  chose the ultimate metal tape at high speed.

It's what you'd expect from the New Fisher

We invented High Fidelity over 40 years ago. We've never stopped moving ahead. The CR 4029  is a perfect example. Part of the new Fisher. Where the only thing about us that's old is our tradition of quality and craftsmanship.  

The Fisher-Lincoln Model 70

 The Fisher-Lincoln Automatic Turn-Over Turntable Model 70

This marvel of American mechanical genius has at one strake removed the last barrier to the enjoyment of recorded music without interruption. For the Fisher-Lincoln model 70 plays one, or both sides at up to ten LP records - over eight hours of continuous music - automatically.

It handles 7", 10" and 12" records intermixed, in any order, 33-1/3 rpm. The only record on the turntable is the one actually being played. The turntable is of studio quality, belt-driven by a special SynDuction motor - fast start, plus constant, dead-accurate speed. Teflon bearings lubricated for life. Standard-mount tone arm for all makes of cartridges. Position and pressure adjustable from above.

Dimensions: 27" wide; 15-3/8" deep, 19-1/4" high, with base

Clearance Required: 14-3/4" above base

Fisher 514

 The new Fisher  Studio-Standard 514 Stereo/4-Channel Receiver

Every Fisher receiver is designed for people who love to play music; but the new Fisher Studio-Standard 514 goes a step further. It's designed for the active audiophiles who get their kikcs out of playing with the music, the people who can't even wait to get a new component out of the box and up on the shelf before trying it out.  These are people who listen with their hands as much as their ears, and while others are snapping their fingers and stamping their feet, they're flicking switches, pushing plugs, and twirling knobs.

If you are as concerned with what goes on inside the box as you are concerned with what comes out, if you're still shifting speakers and splicing wires long after the party's over, chances are you just won't be satisfied by anything less than the Fisher 514.

 We left out nothing.

Both to keep up our reputation of having the latest and teh most, and to make sure that you can listen to as much 4-channel as possible, the 514 has a new CD-4 discrete disc demodulator as well as an SQ matrix decoder. CD-4 has the potential for greater channel separation than SQ. This means that the musicians and studio people can do trickier stuff, and that listeners can wander around the room and still hear everything in its proper position.

SQ is a cinch to broadcast on FM while CD-4 is just about impossible right now; SQ is used on many more records than CD-4, and the decoding circuit doubles as a 4-channel synthesizer for stereo recordings. With the Fisher 514 you do not have to make the difficult choice between CD-4 and SQ; we give you both.

 In addition to all the knobs and buttons you'd expect to find on any receiver of this caliber, the 514 has a sophisticated and highly useful "joystick" balance control similar to the pan pot used in professional recording studios. The joystick is much simpler to use than the two or four knobs found on most other 4-channel receivers, yet it permits extremely precise adjustments of the acoustical field to suit music, personal preference, room acoustics, or seating arrangements.

An elaborate tone control and filter system, centering on studio-style slide potentiometers, provides further fine tuning of the audio environment.

As you might expect, there are separate bass and treble controls for front and rear, but Fisher has added a midrange presence control, with maximum effect at about 1,5 kHz. It's just about the most useful and potent control you could add to a component, and can dramatically highlight a vocal performance against an instrumental background.

Although primarily designed as the control center for an elaborate 4-channel sound system, the 514 uses an exotic Fisher-invented "strapping" technique to combine front and rear amplifiers for stereo use, with a significant increase inpower over what you would expect by just adding up the per-channel wattages.

 What's inside.

Fisher has spared no effort to utilize the latest high-technology devices and manufacturing techniques in the 514. the FM tuner section incorporates dual-gate MOS/FETs. Lumped selectivity circuitry, and a ladder-type ceramic filter to provide the highest possible signal-to-noise ratio, interference rejection, sensitivity, selectivity, and immunity to overload. A Phase Locked Loop multiplex decoder insures high separation and low distortion through temperature changes and extensive use.

It comes from a fine family.

In addition to the 514, we're very pround of our new Studio Standard models 414 and 314. they have a bit less power and not as many controls, but the music is every bit as good.

If, however, you're not ready for, or not sure about, the new CD-4 system, we strongly recommend you consider our 504X, 404X and 304X receivers. They're identical to the "14" series models, except that instead of having a built-in CD-4 demodulator, they have space for it, and sell for $100 less. Should you wish to add CD-4 later on, any of our serice stations can do the job, and the total cost of the "04X" series receiver plud decoder will not exceed the cost of the complete "14". Anybody's 4-channel receiver can be converted to CD-4 with an external add-on demodulator, but Fisher accepts an  internal circuit board - for simplicity, convenience, and reliability.

Specifications

Total Power RMS (8 Ω, 20-20,000 Hz)

Stereo : 180 W

4-channel : 128 W

Total Harmonic Distortion:  0,5% (at rated power, 4 Ω)

IM Distortion [60 and 70,000 Hz 4 : 1]:  0,8% (at rated power, 4 Ω)

Damping Factor:  than less 30 (4-channel operation, 4 - 8 Ω)

Input Senitivity/Impedance:

Phono :  2,7 mV/47 k Ω

Aux :  200 mV/100 k Ω

Monitor :  200 mV/100 k Ω

Recorder Output:  350 mV (30 % FM modulation)

Hum and Noise (below rated RMS output, volume control at minimum):

Phono :  56 dB

Aux : 65 dB

Monitor : 65 dB

Frequency Response:

Phono :  30 - 15,000 Hz (RIAA equalized ±2 dB)

Aux, Monitor :  20 - 20,000 Hz

Max. Input Signal RMS (at 1% THD, 1 kHz):

Phono : 60 mV

Aux : 5 V

Monitor : 4,5 V

Dimensions (W x H x D): 23" x 6 ¾"  x 17" 

Weight:  43 lbs

The Fisher 50-C

 The Fisher Master Audio Control, Model 50-C has been designed to specifications so far beyond those of the ordinary unit of this type, that they will long serve as the ultimate standard of comparsion. In flexibility, flawless performance, beauty of appearance and workmanship, the 50-C is a masterpiece. In sctual use, its performance will be limited on;y by the quality of the associated equipment.

 The Fisher Model 50-C features high gain with extreme reserve output voltage. Intermodulation distortion is so low as to be virtually unmeasurable. The self-contained power supply, completely shielded with DC for all filaments, results in a hum level that is inaudible even under extreme operating conditions. The circuit is all-triode, with fully shock-mounted tubes. Cathode-follower input and two cathode-follower output stages assure isolation of all control circuits, plus independence from load conditions, lead lengths, etc. The Model 50-C can be used with any amplifier.

 

Specifications:

Phonograph Preamplifier:  Has two cascaded triode stages.

Inputs (Total of five):

3 x high-level inputs (0,5 megohm)

1 x low-level magnetic phono input to match all makes of cartridges.

1 x microphone input (2,2 megohms)

Output Impedances (Both recorder and main audio outputs are from cathode followers, permiting lead lengths up to 200 feet. Recommended load  impedance):  100,000 ohms or greater, 7500 mmf or less.

Maximum Gain: 

From high level input:  22,5 dB

From low level input:  50 dB

Harmonic Distortion: 

0,02% at 1 volt,

 0,05% at 5 volts

0,15% at 10 volts

0,4% at 15 volts

Intermodulation Distortion:

0,08% at 1 volt

0,2% at 5 volts

0,5% at 10 volts

1,6% at 15 volts

Frequency Response:  20 Hz - 20,000 Hz  ±1 dB, (with controls in uniform response position)

Hum and Noise level: 

On radio input - better than 100 dB below normal signal (2 volts output) with volume control at zero.

Better tnan 90 dB below normal signal with volume control at maximum.

On phono input -66 dB below output with a 10 mV input signal.

Controls (Total of eight):

Volume Control; operates either conventionally or as a Loudnes Control accurately calibrated to the reciprocal of the Fletcher-Munsen curves

Loudness Control Switch; eliminates loudness compensation when desired

Selctor Switch; has five position (see Inputs above)

Low and High Frequency Equalization Switches; provide independent adjustment of low frequency turnover and high frequency roll-off (16 combinations)

Bass and Treble Tone Controls; produce up to 16 dB of boost or attenuation at 50 and 10,000 cycles respectively. Can be set for uniform response

Power Switch; operates self-contained power supply and three spare AC receptacles.

Five Independent Level Controls; equlize various input signal levels and permit optimum loudness control setting.

Power Supply:  Self-contained and completely shielded, including a full-wave selenium rectifier for B-plus and bridge-type selenium for Dc filaments

Power Source:  105 -125 Volts, 50 - 60 cycles

Tube Complement:  2 x 12 AX7; 1 x 12 AU7

Chassis:  is of etched aluminum

Dimensions (W x H x D):  14¾ x 3½  x 6⅛ inches

The Fisher 400-C

 Model 400-C Stereo Master Audio Control

Has 16 input jacks and 9 controls for any combination of stereo or monaural uses. Provides for stereo tapes, disc, AM-FM, FM-FM, FM Multiplex and mikes; monaural tapes, disc, Am, Fm, TV sound, Short-wave and mike; recording stereo or monaural with monitoring facilities; and, electronic crossover at 650 cps handling monaural program sources into stereo systems for stereo effects. Four outputs in two pairs for stereo or monaural use.

Twelve stage audio circuit with shielded transformer for hum-free performance.  Four AC outputs for driving other equipment. 

Specifications

Controls:

Input; Equalization; Output Selector; 3-position Rumble Filter; 3-position Loudness Contour; Volume and On-Off; Channel Volume Balance; Separate Bass and Treble and 4 input Level Adjustments.

Type Set:  AC Operated Stereo Amlifier

Frequency Response:  20 Hz - 25,000 Hz (Uniform)

Distortion:  less than 0,15% (for 2 volts output);  0,3%  (for  5 volts)

Hum and Noise:  Better than 85 dB for high level inputs and 2 volts output;  65 dB for 10 mV low level input and 2 volts output

Tube Complement:  4 x ECC83;  2 x 12 AT7;  1 x EZ80

Power Supply:  110 -125 Volts AC, 60 cycles

Power Rating:  32 Watts, .30 Amp At 117 Volts Ac

Dimensions (W x D x H):  15-1/8 x 9 x 4-13/14 inches

Weight:  10 lbs

The Fisher Speaker System

 Illustrated is an articulated, dual coaxial speaker system, shown in cutaway form to reveal its unusual design. It is the standard equipment on every Fisher instrument and combines a 15'' bass speaker with a horn-type high frequency speaker, both equipped with Alnico-5 magnets. This system features smooth response, minimum distortion and exceptional polar distribution and presence. A dividing network is provided to channel the upper treble and overtones to the high frequency unit and middle and low tones to the massive bass speaker. A multicellular horn system is available optionally at additional cost.

Illustrated is the greatest development of the last ten years in fine  sound reproduction for the home. It is a multicellular-horn coaxial speaker utilizing two driving units. The larger is designed to handle with exceptional efficiency the first 5-1/2 octaves of he scale. The second unit, small in size, is built with the microscopic accuracy of a fine watch. This mechanism converts to acoustic energy the rapid and delicate pulses of the higher tones and overtones. A nest of eight\ exponential horns diffuses the ordinarily bullet-like  higher tones over an angle of eighty degrees! This speaker system is optional equipment on the Fisher.