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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





Visualizzazione post con etichetta KENWOOD. Mostra tutti i post
Visualizzazione post con etichetta KENWOOD. Mostra tutti i post

Kenwood KX-1030 cassette deck

Most advanced technology of cassette deck design

The KX-1030 achieves electrical and performance characteristics equal to , or better than those of any cassette deck available today at any price. The extraordinary performance of this cassette deck is a direct result of the many years of research and development of dedicated Kenwood engineers, and their desire to achieve a level of performance that goes far beyond the state-of-the-art..

Consider just one performance feature of the KX-1030. there exist a number of cassette decks which incorporate "three-head" design for the purpose of monitoring recordings directly from the tape as they are being made. The KX-1030 provides for such instant playback of recordings, but Kenwood engineers have incorporated independent record and playback heads for this purpose, thereby achieving a performance level not possible with dual-purpose combination record/playback heads. As a result, the KX-1030 provides extended frequency response, wider dynamic range and higher saturation levels - performance qualities that are indispensable for high quality tape reproduction.

 

Flat Drive Belt - the key to further improvement in woa and flutter

The drive system used to transfer rotational energy from the motor to the flywheel can be used to further reduce undesirable wow-and-flutter. A round cross-sectional type of belt, such as that used in most cassette decks, does not provide sufficient contact surface to be used in a precision cassette deck such as the KX-1030. in order to reduce slippage and vibration caused by the subtle, irregular motion that takes place between the flywheel and the drive belt, Kenwood engineers elected to use a flat belt having a width of 5 millimeters. This belt not only reduces slippage because of its large contact surface, but also absorbs vibration caused by the irregular motion inherent in the remainder of the drive system.

Unlike flywheels with V-grooves gouged into their surfaces, the flat, polished surface of the flywheel used in the KX-1030 provides exact concentricity required for precise rotation. Such accurate roundness is difficult if not impossible to achieve with conventional V-grooved flywheels.

 


Vertical Tape Trasport using Independent Belt Drive System

In most cassette decks employing a single-motor drive, one belt is used to drive the tape as well as the take-up reel. In such systems, so long as there is no tape on the take-up reel side, the capstan drive system operates without interruption. However, as tape accumulates on the take-up side, irregularities or "bumps" in the action of the take-up reel may affect the operation of the capstan drive.

In order to reduce wow created by such vibration, Kenwood engineers decided to incorporate two separate belts; one solely for driving the capstan; the other for driving the take-up reel. As a result of this two-belt system, the KX-1030 provides low wow-and-flutter as well as accurate and stable rotation of the capstan, regardless of tape accumulation on the take-up reel of the cassette.

 

Capstan Roundness Accuracy

The capstan used in Kenwood's KX-1030 is machined to the critical roudness tolerance of 0,1 microns, thus reducing another important cause of wow-and-flutter. The capstan roundness chart , indicates clearly the degree of roundness achieved in Kenwood capstans.

Capstan accuracy must be maintained indefinitely, and not only when the cassette deck leaves the factory. In order to maintain this built-in accuracy, Kenwood engineers have incorporated a triangular capstan support system. This three-point support (as opposed to single or dual-support systems used by other manufacturers) can withstand shock from any direction without affecting the mechanical stability of the capstan system. Thus, long term reliability and low wow-and-flutter performance are assured through many years of continued use.

 

High Power, High Torque DC Servo Motor

While the use of a large flywheel in a cassette deck's transport system contributes significantly to stable and accurate rotation of that drive system, driving such a heavy flywheel requires a motor with high rotational torque. Kenwood engineers have incorporated a motor with a rotational torque of 50 gram centimeters in the KX-1030 - compared with approximately 20 gram centimeters of torque provided by the motors used in many other cassette decks. Another important feature of this well designed DC servo motor is that a sudden increase in load (often encountered in cassette drive systems when less-than-perfect cassette tape housing are used) has a negligible effect upon the stability of the tape drive system.

 


Specifications

Type:  Front Loading Stereo Cassette Deck with Dolny System

Track:  4-track 2-channel Stereo/Mono Recording/Playback

Recording System:  AC Bias System (Bias Frequency: 85 kHz)

Erasing System:  Ac System

Tape Speeds:  4,76 cm/sec (1-7/8 ips)

Heads:  Three Ferrite Heads

Recording and Playback Dual Combination Head x 1

Erasing Head x 1

Motor:  Electronically Controlled DC Motor

Fast Winding Time:  Approx. 80 sec. C-60 tape

Frequency Response

Normal Tape :  25 Hz to 17,000 Hz (35 Hz - 15,000 Hz ±3 dB)

CrO₂ Tape :  25 Hz to 20,000 Hz (35 Hz - 18,000 Hz ±3 dB)

Ferri-CrO₂ Tape :  25 Hz to 19,000 Hz (35 Hz - 17,000 Hz ±3 dB)

Signal-to-Noise Ratio

Dolby On (over 5 kHz):  65 dB (Normal Tape ):  67 dB (CrO₂ tape)

Dolby Off :  55 dB (Normal tape); 57 dB (CrO₂ tape)

Total Harmonic Distortion:  less than 1,3% (at 1 kHz, 0VU with Normal tape)

Wow and Flutter:  0,06% (WRMS)

Input Sensitivity/Impedance

Line x 2 :  77,5 mV/56 k Ω  ( or 0,1 mV/1,0 k Ω  )

DIN x 1 :  10,9 mV/1,5 k Ω

Microphones x 2 :  0,19 mV/10 k Ω

Output Level/Load Impedance

Line x 2 :  775 mV (0VU) / 2,0 k Ω

DIN x 1 :  775 mV (0VU) / 2,0 k Ω

Headphones x 1 :  48,9 mV / 8 Ω  - 16 Ω

Power Requirements:  AC 120 V 60 Hz (USA, Canada); AC 220 V , 50 Hz (Australia); AC 240 V, 50 Hz (UK )

Power Consumption:  13,0 watts

Dimensions (W x H x D):  430 x 167 x 332 mm (16-15/16"x 6-9/16"x13-1/16")

Weight:  7,5 kg (16,5 lbs)


 

Kenwood KR-9600 receiver

AM/FM Stereo Receiver

The KR-9600 Receiver puts independent power supplies behind each channel, so demanding musical passages in one channel won't cause distortion in the other. At 160 watts per channel minimum RMS power at 8 Ω , from 20 to 20,000 Hz, with no more than 0,08% Total Harmonic Distortion. The KR-9600 is the most powerful receiver we have ever made. What's more the KR-9600 is loaded with special features. A mid-range presence control, MIC mixing and source fading a deviation meter for source fading, a deviation meter for perfect off-air recording and 2 big power meters, to mention a few.

 


Kenwood's finest KR-9600 incredible power, advanced new circuitry and full complement of controls for unsurpassed performance. Features:

Dual power supplies end crosstalk distortion

Two selectable-range Power meters

Separate equalizer amplifiers for Phono 1 and Phono 2

FM front end couples a dual-gate MOS FET with 5-gang tuning capacitor for the theoretical limit in FM sensitivity (1,5 µV)

Low-distortion, 8-element linear phase IF filter

PLL in FM Multiplex for improved stereo separation

FM Dolby deemphasis switch

Dual function Signal/Deviation Meter

Microphone input for overdub on tape and Public Address

 wo tape deck capability with bi-directional dubbing and tape-through circuit

Triple tone controls with Defeat switch

Optional CB-15 walnut veneer cabinet available

 


Specifications

FM Tuner Section

Usable Sensitivity:  8,7 dBf (1,5 µV)

50 dB Quieting Sensitivity:

Mono :  14,1 dBf (2,8 µV)

Stereo :  36,1 dBf (35 µV)

Signal-to-Noise Ratio

Mono :  75 dB

Stereo :  70 dB

Total Harmonic Distortion

Mono :  0,15%

Stereo :  0,2%

Frequency Response:  20 Hz to 15,000 Hz +0 dB, -1,5 dB

Capture ratio:  1,3 dB

Alternate Channel Selectivity:  83 dB

Spurious Response Ratio:  115 dB

Image Response Ratio:  100 dB

IF Response Ratio (Balanced):  115 dB

AM Suppression Ratio:  60 dB

Stereo Separation:  45 dB at 1,000 Hz ; 35 dB from 50 Hz to 10,000 Hz

Subcarrier Product Ratio:  65 dB

Antenna Impedance

Balanced :  300 Ω

Unbalanced :  75 Ω

AM Tuner Section

Usable Sensitivity:  10 µV

Signal-to-Noise Ratio:  50 dB

Image Rejection:  70 dB

Selectivity (IHF):  35 dB

IF Rejection:  75 dB

Power Amplifier Section

Power Output (20 to 20,000 Hz with no more than 0,08% T.H.D.):

160 W per channel minimum RMS at 8 Ω 

200 W per channel minimum RMS at 4 Ω 

Dynamic Power Output:  750 W (at 4 Ω )

Total Harmonic Distortion

0,08% at rated power into 8 Ω

0,05% at 1 W power into 8 Ω

Intermodulation Distortion (60 Hz : 7 kHz = 4 : 1)

0,08% at rated power into 8 Ω

0,05% at 1 W power into 8 Ω

Power Bandwidth:  5 Hz to 50,000 Hz

Damping Factor:  55 at 8 Ω

Input Sensitivity/Impedance: 1 V/50 k Ω

Speaker Impedance:  4 Ω  to 16 Ω

Pre Amplifier Section

Input Sensitivity/Impedance

Phono 1 :  2,5 /50 k Ω

Phono 2 :  5,0 mV / 50 k Ω

Aux :  150 mV/50 k Ω

Tape :  150 mV/50 k Ω

Mic :  1,5 mV/50 k Ω

Signal-to-Noise Ratio

Phono 1 :  76 dB

Phono 2 :  80 dB

Aux :  95 dB

Tape :  95 dB

Mic :  65 dB

Maximum Input Level

Phono 1 :  500 mV (RMS) T.H.D. 0,08% at 1,000 Hz

Output Level/Impedance

Tape Rec Pin :  150 mV/100 Ω

Tape Rec DIN :  30 mV/80 k Ω

Pre Out :  1 V/5,3 k Ω

Frequency Response;

Phono 1 :  RIAA standard curve +0,2 dB, -0,2 dB

Aux , Tape :  20 Hz to 40,000 Hz +0 dB, -1 dB

Mic :  100 Hz to 8 ,000 Hz +0 dB, -3 dB

Controls

Bass :  ±10 dB at 100 Hz

Mid :  ±10 dB at 800 Hz

Treble :  ±8 dB at 10,000 Hz

Loudness Control (-30 dB): +3 dB at 100 Hz; +6 dB at 100 Hz

Low Filter :  -9 dB at 100 Hz

High Filter :  -9 dB at 10 kHz

General

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

Power Consumption:  820 W at full power

AC Outlet:  1 Switched, 2 Unswitched

Dimensions (W x H x D):  580 x 169 x 420 mm (22-27/32" x 6-21/32" x 16-17/32")

Weight Net:  24 kg (52,9 lbs)


 

Kenwood KR-8010 receiver

If you're enthusiastic about today's less efficient, super-accurate speaker systems, you know you need a very efficient, super-power receiver to drive them. And if your ears are good enough, you know the value of lots of power to handle critical musical passages with any speaker system.

That's why we created the new KR-8010. with 125 Watts per channel, minimum RMS both channels driven at 8 ohms, from 20 Hz to 20,000 Hz with no more than 0,03% Total Harmonic Distortion, you've got all the power you really need.

But more important, the KR-8010 gives you an extremely clean, low-distortion signal at the same time. For example, the Signal-to-Noise Ratio through the phono input is the best you'll find on any receiver (90 dB). Its overall frequency response is matched precisely to the RIAA curve ±0,2 dB. And the tuner delivers sensitivity and selectivity that you'll really appreciate in signal-crowded-cities.

To shape that signal into music, the KR-8010 offers a full range of front-panel control, usually found only in esoteric separates and recording studios. Like tape dubbing while listening to another source. And dual FM muting levels, Mic input and fade control. Bass, treble and midrange tone control. And more.

 

Features:

Direct-mounted power transistors permit greater heat sink efficiency for cool operation

Exceptionally low-noise phono equalizer with high overload level

4-pole dual-gate MOS FET's in RF stage and 6-element ceramic filters in IF stage for excellent sensitivity and selectivity

New PLL IC in FM Multiplex with Pilot Canceller Circuit

FM Dolby deemphasis switch and 2-level FM Muting switch

Microphone input for overdub on tape and Public Adress

2 tape deck capability with bi-directional dubbing and tape-through circuit

Triple tone controls with defeat switch

Optional CB-14K walnut veneer cabinet, B-14 walnut veneer side panels, or D-10 carrying handles available

 

Specifications

Power Output:  125 watts per channel (min. RMS both channels driven, at 8 Ω  from 20 to 20,000 Hz with no more than 0,03% Total Harmonic Distortion

Power Output

Both Channel Driven: 

130 + 130 W into 8 Ω  at 1 kHz

135 + 135 W into 4 Ω  at 1 kHz

Dynamic Power Output:  360 W into 4 Ω

Total Harmonic Distortion (20 to 20,000 kHz from Aux): 

0,03% at rated power into 8 Ω

0,02% at 1/2 rated power into 8 Ω

Intermodulation Distortion (60 Hz : 7 kHz = 4:1):  0,03% at rated power into 8 Ω

Power Bandwidth: 5 Hz to 70,000 Hz

Frequency Response:  5 Hz to 100,000 Hz -1 dB

Signal-to-Noise Ratio :  120 dB (short circuited)

Damping Factor:  35

Input Sensitivity /Impedance:  1 V/40 k Ω

Preamplifier Section

Input Sensitivity/Impedance

Phono 1, 2 :  84 dB for 2,5 mV input; 90 dB for 5,0 mV input

Aux , Tape :  105 dB for 150 mV input

Mic :  73 dB for 2,0 mV input

Maximum Input Level:  250 mV (RMS) T.H.D. 0,03% at 1 kHz

Frequency Response:

Phono :  RIAA standard curve ±0,2 dB

Aux, Tape :  10 Hz to 100,000 Hz - 1,0 dB

Tone Control

Bass :  ±12 dB at 50 Hz

Mid :  ±12 dB at 800 Hz

Treble :  ±12 at 15 kHz

Loudness Control (Vol -30 dB):  +10 dB at 100 Hz

Subsonic Filter:  18 Hz 6 dB/oct

Output Level/Impedance

Tape Rec (Pin) :  150 mV/300 Ω

Tape Rec (DIN) :  30 mV/80 k Ω

Pre Out :  1,9 V/1 k Ω

FM Tuner Section

Usable Sensitivity:  9,8 dBf (1,7 µV)

50 dB Quieting Sensitivity

Mono :  14,1 dBf (2,8 µV)

Stereo :  36,3 dBf (30 µV)

Signal-to-Noise Ratio at 65 dBf

Mono :  80 dB

Stereo :  72 dB

(75 dB at 10 mV)

Total Harmonic Distortion

Mono :  0,1%

Stereo :  0,15%

Frequency Response:  20 Hz to 15,000 Hz +0,2 -2.0 dB

30 Hz to 15,000 Hz +0,2 -0,5 dB

Capture Ratio:  1,0 dB

Image Rejection Ratio:  85 dB

Spurious Response ratio:  105 dB

IF Response ratio:  90 dB

Alternate Channel Selectivity:  85 dB

AM Suppression Ratio:  60 dB

Stereo Separation Ratio:  45 dB at 1,000 Hz (30 dB at 50 Hz - 15,000 Hz)

Subcarrier Product Ratio:  67 dB

Antenna Impedance:  300 Ω  balanced; 75 Ω  unbalanced

FM Frequency Range:   88 MHz to 108 MHz

AM Tuner Section

Usable Sensitivity:  10 µV (250 µV/m)

Signal-to-Noise Ratio:  50 dB

Image Rejection:  50 dB

Selectivity:  35 dB

General

AC Outlet:  1 Switched, 1 Unswitched

Power Consumption:  850 W at full power

Dimensions (W x H x D):  534 x 167 x 459 mm (21-⅓2" x 6-19/32" x 18-1/16")

Weight:  18,3 kg (40,3 lbs)


 

Kenwood KA-660D amplifier

Stereo Integrated Amplifier

Features:

Digital-ready power amplifier with excellent low-impedance drive capability

Dynamic Power Output (EIA) 2 x 165 W into 2 ohms

Ultra-short signal paths and circularised linear circuit layout to produce high-quality, high-definition sound especially for the UK market

Type monitor Source Direct position

Super Bass switch

Independent L/R channel volume control

MM/MC phono cartridge selector

Relay operated A/B speaker selectors with protection

Headphone Jack

 

 

Specifications

Power Output:  60 watts per channel minimum RMS, both channel driven at 8 Ω  from 20 - 20,000 Hz with no more than 0,08% Total Harmonic Distortion.

Maximum Continuous Power Output

DIN,  at 4 Ω  :  100 W + 100 W

IEC, at 8 Ω  :  70 W + 70 W

Total Harmonic Distortion : 

20 Hz - 20,000 Hz, 8 Ω  :  0,08%

1 kHz, 8 Ω  :  0,009%

Intermodulation Distortion:  0,03% at rated power (60 Hz : 7 kHz= 4 : 1)

Frequency Response:  10 Hz to 90 kHz +0 dB -3 dB (IHF)

Damping Factor:  250 (50 Hz input 8 Ω )

Signal-to-Noise Ratio (IHF-A)

Phono (MM) :  78 dB

Phono (MC) :  74 dB

Tape, Tuner, Aux, CD :  106 dB

Input Sensitivity/Impedance:

CD, Aux, Tuner, Tape :  150 mV / 47 k Ω

Phono (MM) :  2,5 mV/47 k Ω 

Phono (MC) :  0,2 mV/47 k Ω 

Tone Controls

Treble :  ±10 dB at 10 kHz

Bass :  ±10 dB at 100 Hz

General

Power Requirements:  110, 120, 220 - 240 V 50/60 Hz

Power Consumption:  250 W

Dimensions (W x H x D):  440 x 102 x 345 mm (17-5/16" x 4-1/16" x 13-9/16")

Weight:  8,8 kg (19,0 lbs)


 

Kenwood KA-550D amplifier

Features

Digital-ready power amplifier with excellent low-impedance drive capability

Dynamic Power Output (EIA) 2 x 90 W into 2 ohms

Ultra-short signal paths and circularised linear circuit layout to produce high-quality, high-definition sound especially for the UK market

Type monitor Source Direct position

Independent L/R channel volume control

Headphone Jack

 


Specifications

Power Output:  35 watts per channel minimum RMS, both channel driven at 8 Ω  from 20 - 20,000 Hz with no more than 0,08% Total Harmonic Distortion.

Maximum Continuous Power Output

DIN, 1 kHz, at 4 Ω  :  52 W + 52 W

DIN, 1 kHz, at 8 Ω  :  41 W + 41 W

IEC/NF, 63 Hz - 12,500 Hz, 0,7% T.H.D. at 8 Ω  :  40 W + 40 W

Total Harmonic Distortion : 

20 Hz - 20,000 Hz, 8 Ω  :  0,08%

1 kHz, 8 Ω  :  0,009%

Intermodulation Distortion:  0,03% at rtaed power (60 Hz : 7 kHz= 4 : 1)

Frequency Response:  10 Hz to 80 kHz +0 dB -3 dB (IHF)

Phono Frequency Response :  RIAA Standard curve ±0,4 dB (30 Hz to 20 kHz)

Damping Factor:  250 (50 Hz input 8 Ω )

Signal-to-Noise Ratio (IHF-A)

Phono (MM) :  76 dB

Tuner, Aux, CD :  82 dB

Tape :  82 dB

Signal-to-Noise Ratio at Unweighted, 50 mW Output (DIN)

Phono (MM) :  57 dB

Tuner, CD, Aux, Tape :  57 dB

Input Sensitivity/Impedance:

Phono (MM) :  2,5 mV / 47 k Ω

Tuner, CD, Aux, Tape :  150 mV / 47 k Ω

Phono Maximum Input Level (MM) :  150 mV, 0,08% T.H.D. at 1 kHz

Output Level Impedance:

Tape Rec :  150 mV / 220 Ω

Rec Out :  150 mV / 220 Ω

Channel Separation (DIN) at 1,000 Hz

Phono (Terminated with 2,2 k Ω ) :  64 dB

Aux (Terminated with 47 k Ω  +  250 pF) :  68 dB

Tone Controls

Treble :  ±10 dB at 10 kHz

Bass :  ±10 dB at 100 Hz

Phono Input Capacity :  320 pF

General

Power Requirements:  110, 120, 220 - 240 V 50/60 Hz

Pc :  150 W

Dimensions (W x H x D):  440 x 102 x 345 mm (17-5/16" x 4-1/16" x 13-9/16")

Weight:  6,8 kg (15,0 lbs)


 

Kenwood DP-1100SG


CD Player with Optical Digital Output

Special Features:

Twin linear full-bit DACs with Digital Pulse Axis Control

4-times oversampling digital filter

Totally separate digital/analogue circuits and power supplies with twin transformers

Multi-insualation system with Dyna-Pneumatic Suspension

Optimum Servo Control type III

3-beam laser pick-up

High-rigidity structure with diecast pick-up frame

Internal optical coupling

Full function infrared remote control

Rapid durect play system with +10 - +50 keys and 10-key input

4 play modes;Track, Program, Time, Single

Compu-Time Edit function

5-mode real-time display

20-track random programme memory

A-B section repeat

Index search

Optical/coaxial output



 

Specifications

Type:  Compact disc plyer

Read System:  Non-contact optical pickup

Laser:  GaAlAs, wave lenght = 780 nm, 3-beam tracking

Rotational Speed:  about 500 to 200 rpm

Error Correction:  Cross Interleave Read-Solomon code

Audio Channel:  two

Frequency Response:  4 Hz - 20 kHz

Signal-to-Noise Ratio :  more than 108 dB

Total Harmonic Distortion :  0,001% at 1 kHz

Channel Separation:  more than 106 dB at 1 kHz

Wow and Flutter:  below measurable limit

Output Voltage:

Analog Outputs

Line Out Fixed :  2,0 V

Line Out Variable :  0 - 2,0 V

Digital Output

Coax Cable Terminal :  0,5 V p-p, 75 Ω

Optical Output:  -15 dBm …. -25 dBm

Headphone Jack:  60 mW (8 Ω )

Power Consumption:  23 W

Dimensions (W x H x D):  440 x 124 x 360 mm (17-5/16" x 4-7/8" x 14-3/16")

Weight:  11,8 kg (26 lb)

Kenwood KL-5080 loudspeakers

 

Damped Pipe Duct 4-way 5-speaker System

Kenwood 's inspired engineering has produced - through a series of elaborate simulations and modifications - a damped pipe duct 4-way, 5-speaker system that takes you to the very heart of musical sound essence combined with many other superior qualities for which Kenwood enjoys justifiable international acclaim, this KL-500 speaker system rightfully belongs on that creative pinnacle that enables it to represent the best features of artistry and technology. Noted for exacting over-all high efficiency in true-total-tone reproduction, the KL-5080 fully complements all IDS music system.

 

Special Features

4-way 5-speaker

The luxurious 5-speaker system reproduces really natural hifi sound covering wide 30 - 22,000 Hz. The bass sound made by 12" free-edge type woofer has enough heaviness and excellent damping. The 1-1/4" metal cone type super tweeter adds very delicate nuance on the high frequencies over 10,000 Hz, and it makes the total sound fascinating

 

Large Power Input and High Sensitivity

Designed for high-power amplifiers, KL-5080 allows maximum input of 70 watts, which enables to use this system even in a large hall. Furthermore, thanks to its extra high sensitivity (102 dB), it can be satisfactorily driven with small output amplifiers

 

Damped Pipe Duct Type Bass Reflex

A dullness in the bass sound is inevitable in most bass reflex type enclosure, while the sealed enclosure give clean bass at the cost of decrease in the sensitivity. Kenwood, through elaborate simulations, has realized the exclusive Damped Pipe Duct, which provides true bass sound, free from distortion and dullness and with high efficiency.

 

3-Step Tone Selector

According to your individual preference or room acoustic condition, the most suitable tone characteristics can be selected as follows;

Clear - slight emphasis of highs

Normal - flat, hi-fi response

Soft _ slight attenuation of midrange and highs

 

High Quality Dividing Network

Smooth, distortion-free 4-way crossover, all between speaker units, is provided by a 12 dB/oct. L-C network which uses heavy-duty, copper, wire-wound inductance coils.

 

IDS Connection

The terminals for separate 3-way connection with 3 main-amplifiers reserve the development into ideal IDS music system. Kenwood's receiver and IDS amplifier, MA-5100, will be of use for the total line-up.

 

Pleasing Exterior

The carefully finished metal grille exterior will match, as a result of kenwood's craftmanship, the listening atmosphere and modern furniture.

 


Specifications

Enclosure:  Damped Pipe Duct, Bass Reflex Type

Mounted Speakers:

1 x 12"  free-edge type woofer

1 x 6,5" cone type midrange

2 x Horn type tweeter

1 x 1,25" metal cone type super tweeter

Maximum Input

Full Range :  70 watts

Woofer :  70 watts

Midrange (over 600 Hz) :  25 watts

Treble (over 5 kHz) :  25 watts

Impedance:  8 Ω

Sensitivity:  103 dB

Frequency Response:  30 Hz - 22,000 Hz

Crossover Frequency:  600 Hz; 5,000 Hz; 10,000 Hz

Crossover Network ;  12 dB/oct

Dimensions (W x H x D):  15" x 25-1/2" x 11-5/6"

Weight:  48 lbs

Kenwood KT-1100D tuner

 

High-Quality FM/MW Tuner with 4D System

Features

Pentacle Power Supply System

Improved Direct Linear Reception Circuit (DLRC)

Direct Linear Loop FM Detector (DLLD)

IF Distortion Correcting Circuit (DCC)

New Direct Pure MPX Decoder (DPD)

RF Direct/Distance selectors

Wide/Narrow FM IF band selectors

Recording calibration with modulation meter

Quieting control

16-station randon preset memory with display

Digital-rotary tuning system

Dynamic tuning process display

 


Specifications

FM Tuner Section

Sensitivity (DIN)

Mono (S/N 26 dB, 40 kHz dev.) :  0,9 µV

Stereo (S/N 46 dB, 46 kHz dev.) :  20 µV

Limiting Level -3 dB point, 40 kHz dev>"  0,46 µV

Frequency Response:  20 Hz - 15 kHz ±0,5 dB

Total Harmonic Distortion (1 kHz)

Mono (40 kHz dev.) :  0,02% (Wide); 0,06% (Narrow)

Stereo (46 kHz dev.) :  0,1% (Wide); 0,35% (Narrow)

Signal-to-Noise Ratio  Unweighted

Mono (40 kHz dev. 1 mV input) :  78 dB

Stereo (46 kHz dev. 1 mV input) :  67 dB

Signal-to-Noise Ratio  Weighted

Mono (40 kHz dev. 1 mV input) :  82 dB

Stereo (46 kHz dev. 1 mV input) :  67 dB

Capture Ratio:  2,0 dB (Wide); 3,5 dB (Narrow)

Alternate Channel Selectivity:  64 dB (DIN ±300 kHz)

FM Stereo Separation (1 mV input DIN)

250 Hz :  50 dB  (Wide); 45 dB  (Narrow)

1 kHz :  50 dB  (Wide); 45 dB (Narrow)

6,3 kHz :  40 dB  (Wide); 35 dB (Narrow)

12,5 kHz :  35 dB   (Wide); 30 dB (Narrow)

Alternate Channel Selectivity (±300 kHz DIN):  55 dB (Wide): 80 dB (Narrow)

Image Rejection Ratio :  80 dB

IF Rejection Ratio :  110 dB

Spurious Rejection Ratio :  100 dB

AM Suppression Ratio:  70 dB

Subcarrier Suppression Ratio:

19 kHz, 46 kHz Dev :  55 dB

38 kHz, 46 kHz Dev :  68 dB

MW Tuner Section

Usable Sensitivity:  10 µV (250 µV/m)

Signal-to-Noise Ratio (1 mV input):  52 dB

T.H.D.  0,4% (Wide); 0,6% (Narrow)

Image Rejection Ratio:  40 dB

Selectivity (IHF):  25 dB (Wide); 50 dB (Narrow)

General

Power Consumption:  18 W

Dimensions (W x H x D):  440 x 88 x 331 mm

Weight:  4,6 kg