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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





Kenwood KR-2200 receiver

FM/AM Stereo Receiver

Brilliant Stereo performance, Amazing Stereo Value.

Ideal for den, dorm, or as the electronic center of a second stereo system in your home, Kenwood's KR-2200 receiver boasts performance specifications and control features that belie its budget price. Convinced that a lower powered receiver need not sacrifice sound quality within its ratings, Kenwood engineers have come up with a receiver whose technical specifications and features will truly astound you. If 30-watts of dynamic )IHF) power is all you need or can afford, the KR-2200 will give you the most for your stereo investment.

 


Power Amplifier Section

Harmonic and intermodulation Distortion of the power amplifier section of the KR-2200 is less than 0,8% at rated output, and the amplifier can handle any speaker impedance from 4 Ω  to 16 Ω . At normal listening levels, distortion is actually less than 0,2%

Mike Mixing In any mode

A unique features that will certainly add to your stereo enjoyment, Mike Mixing permits you to blend your own voice or instrumental accompaniment with sound from any other program source. Microphone jack and level control are positioned on the front panel for convenience

Sophisticated Controls for your sound system

The KR-2200 provides a broad range of controls to give you complete mastery over your sound system. Beside the individual bass and treble tone controls, a dual concentric Volume/Balance Control enables you to set up precise channel balance in addition to controlling overall loudness. A Speaker Selector Switch activates two pairs of stereo speaker systems, either individually or simultaneously , to let you enjoy stereo in different locations. An input Selector chooses AM, FM Auto, FM Mono, Phone, or Tape/Aux, while a Loudness Compensation Switch permits low-level listening.

FM Tuner Section

A FET (Field Effect Transistor) in the specially-designed front end, a three-section tuning system, and a permanently aligned mechanical IF filter give the KR-2200 an IHF sensitivity of 2,5 µV with a Signal-to-Noise Ratio of better than 60 dB. With an FM stereo separation of 30 dB at 1000 Hz and a spurious signal rejection of 80 dB, you can be sure of clean, interference-free FM reception of all your favorite FM stations.

Other Features

Front Panel Jack for Stereo headphones;

Signal Strength Tuning Meter

Luminous Dial Pointer for easy tuning

Pin and DIN Connector for Tape Deck

1 Switched AC Outlet

 


Specifications

FM Tuner Section

Sensitivity (IHF):  2,5 µV

Signal-to-Noise Ratio:  60 dB

Capture Ratio (IHF):  4.0 dB

Selectivity, Alt Ch. (IHF):  40 dB

Stereo Separation: 30 dB at 1 kHz

Total Harmonic Distortion (400 Hz, 100% Mod.)

Mono :  0,8%

Stereo :  1,0 %

Image Rejection:  50 dB

IF Rejection Ratio:  95 dB

Harmonic Spurious Rejection:  80 dB

AM Suppression Ratio:  45 dB

Sub-Carrier Suppression:  40 dB

Antenna Impedance:  300 Ω

AM Tuner Section

Sensitivity (IHF):  25 µV

Signal-to-Noise Ratio:  45 dB

Selectivity:  25 dB

Image Rejection Ratio:  45 dB

IF Rejection Ratio:  35 dB

Amplifier Section

Continuous Power Output

Both Channels Driven

16 watts :  8 W + 8 W at 8 Ω  from 50 - 20,000 Hz

17 watts :  8,5 W + 8,5 W at 4 Ω  at 1 kHz

Each Channel Driven

11/11 watts at 4 Ω  at 1 kHz

10/10 watts at 8 Ω  at 1 kHz

Dynamic Power Output (IHF)

Both Channel Driven

30 watts at 4 Ω

26 watts at 8 oh

Total Harmonic Distortion

0,8% at rated output

0,2% at -3 dB

Intermodulation Distortion

0,8% at rated output

0,2% at -3 dB

Frequency Response:  25 - 35,000 Hz ±2 dB

Power bandwidth (IHF):  30 - 20,000 Hz

Input Sensitivity/Impedance (for rated output)

Phono :  3 mV/50 K Ω

Aux, Tape Play:  120 mV/30 k Ω

Mic. :  4,5 mV

Hum and Noise

Phono :  60 dB

Aux, Tape Play :  70 dB

Mic. :  60 dB

Tone Controls

Bass :  ±8 dB at 100 Hz

Treble :  ±8 dB at 10 kHz

Loudness Control"  +8 dB at 100 Hz

Damping Factor:  45 at 8 Ω

General

Switches speakers:  Power Off, A, B, A + B, Phones

Tone Controls:  2 dB Step-Type, Bass, Treble

Selector:  AM, FM Auto, FM Mono, Phono, Tape/Aux

Front Panel Jacks: Phones, Microphone

Level Control: Microphone Mixing

AC Outlets:  1 unswitched

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

Power Consumption:  56 watts at full power output

Dimensions (W x H x D):  17-5/8" x 4-3/4" x 15-1/8"

Weight:  13,4 lbs

Walnut Cabinet:  Included


 

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