Mission 700 loudspeakers

In any hi-fi system, it is the loudspeaker which ultimately determines the quality of sound reproduction. The intricate nature of its operation, namely the complex process of transforming electrical energy into acoustical output, results in continued controversy between designers.

 

Acknowledged as the world's finest compact speaker system by technical press throughout Europe, Britain, Canada and the U.S.A. the Mission 700 remains our most sought after product.

And no, it's not upside-down. There are many complex reasons for the reversed positions of Mission's new 8" driver and the dome tweeter. There are also many other less visible technical innovations incorporated in this design, most of which are beyond the scope of discussion here. Suffice it to say that never before did a speaker system of this size and price offer the qualities and capabilities of our baby 700.

 

Specifications

Frequency Range:  35 Hz - 25,000 Hz

Frequency Response:  60 Hz - 20 kHz ±3 dB

Recommended Amplifiers:  15 W - 80 awatts / Channel

Impedance Nominal:  8 Ω

Sensitivity (SPL at 1 m, 1 W Pink Noise):  89 dB

Drivers

LF :  205 mm Plastiflex Cone Woofer

HF :  19 mm Ferrofluid Dome Tweeter

Dimensions (H x W x D):  460 x 260 x 255 mm

Weight (net):  6,5 kg

Finish:  Walnut or Black

 

Tascam DA-45HR DAT recorder

Here's the new standard in audio mastering technology. The Tascam DA-45HR is the worlds first 24-bit high resolution DAT recorder. It combines stunning audio performance with a rugged transport, advanced features and backward compatibility with standard 16-bit DAT.

A full audio I/O complement and word sync in/thru provide all the tools to integrate into any analog or digital studio of any size. Perfect for studios and mastering houses, the DA-45HR bridges the gap between the 16 bit and 24 bit worlds with a familiar interface you already know.

 

The 24 bit format DAT uses the same DAT tape that is used in standard DAT recorders. In order to store the extra data generated by higher resolution recording, the tape speed is doubled in HR (High Resolution) mode. So, when you're recording in 24 bit HR mode, a standard 120 minute tape will last 60 minutes. Obviously, 24 bit DAT tapes will only play back on a 24 bit DAT recorder like the DA-45HR.

The DA-45HR can also run just like a standard 16 bit DAT recorder, running normal speed and writing 16 bits to the tape. Reading and writing is fully supported, so you won't have to dig out a different DAT recorder for anything else.

 

Specifications:

Tape Speed:  SP - 8.15 mm/s; HR - 16.3 mm/s

Recording Time (120 DAT):  SP - 120 minutes; HR - 60 minutes

Recording Resolution:  SP - 16 bit; HR - 24 bit

Recording Sample Rate:  44.1 kHz, 48 kHz

Frequency Response:  20 Hz- 20 kHz ±0.5 dB (SP & HR modes)

Signal to Noise Ratio: 

Better than 105 dB Playback (SP)

Better than 112 dB Recording, 105 dB Overall (HR)

Total Harmonic Distortion: 

Less than 0.005% Playback (SP)

Less than 0.002% Recording, less than 0.004 Overall (HR)

Wow and Flutter:  Unmeasurable (less than 0.001%)

Channel Separation:  better than 95 dB (1 kHz at Full Scale)

Input RCA: 

-10 dBV, 50 k Ω 

+6 dBV Maximum (2 V rms)

Input XLR: 

+4 dBu, 10 k Ω   (-16 dB, -18 dB, -20 dB Full Scale)

+20 dBV, +22 dBV, +24 dBV Maximum

Output RCA: 

-10 dBV, less than 700 Ω 

+6 dBV Maximum (2 V rms)

Output XLR: 

+4 dBu, 27 Ω   (-16 dB, -18 dB, -20 dB Full Scale)

+20 dBu, +22 dBu, +24 dBu Maximum

AES/EBU I/O:  XLR-type, IEC60958 Type I (AES/EBU)

SPDIF Coaxial I/O:  RCA pin, IEC60958 Type II (SPDIF)

Headphone Output:  2x50 mW into 32 Ω 

Word Sync IN/THRU:  75 Ω   (auto-terminating)

Control Ports:  1/8" mini plug accepts RC-D45 remote DB15 Parallel I/O

General Specifications:

Power Requirements:   

120 V AC, 60 Hz (USA/Canada Model); 

230 V AC, 50 Hz (UK/Europe Model); 

240 V AC, 50 Hz (Australia Model)

Power Consumption:  40W

Dimensions:  482 x 140.5 x 368 mm (19" x 5.5" x 14.5")

Weight:  8.3Kg, 18.25 lbs.

Optional Accessories:  Wired Remote (RC-D45)

 

Harman/Kardon hk690i receiver

The hk690i - it's the ultimate receiver from Harman/Kardon.

The hk690i provides the combination of pure power, sonic excellence and features that the true audiophile demands.

With its High instantaneous Current Capability of 45 amps, the hk690i will develop far more power under peak demand conditions than its rated 60 Watts per channel. In fact, its dynamic behavior approaches the ideal; the transient power nearly doubles into 4 ohms and continues to increase dramatically into 2 ohms. This means that the hk690i gives you louder, clearer sound than any other 60 Watt receiver.

It has an Ultrawideband Frequency Response of 0,2 Hz to 150 kHz, as well as low negative feedback for extremely fast and accurate transient response. The result is a virtual elimination of TIM distortion.

The phono section has a unique RIAA equalization circuitry  which maintains a constant low level of negative feedback throughout the audio frequency range. The tuner section automatically shuts off when the phono or aux buttons pressed to eliminate digital switching noise or the possibility of bleed-through.

The digital synthesized quartz-locked hk690i possesses a unique sample-and-hold MPX decoder to decrease high frequency switching noise while eliminating the need for much of the filtering normally required in FM processing.

Features normally expected to be found in top-of-the-line components are, naturally, included. Provisions for two tape decks (with tape copy capability) auto and manual tuning, 8 Am and 8 FM memory presets, switchable bass and treble turnover frequencies, a Moving Coil head amplifier, loudness control, subsonic and high cut filters, muting control and FM high blend.

 

Specifications

Amplifier Section

Power Output

RMS, per channel, (both channels driven into 8 Ω , 20-20,000 Hz):  60 Watts less than 0,06% T.H.D.

IHF Signal (Dynamic Power) at 4 Ω , 1 kHz :  120 watts

IHF Signa (Dynamic Power) at 2 Ω , 1 kHz :  150 watts

Negative Feedback (Overall):  12 dB

High Instantaneous Current Capability (HCC):  45 Amps

Power Bandwidth (at half-rated Output, 8 Ω ):  less than 10 Hz - 100 kHz

Frequency Response (at 1 Watt Output, +0 -3 dB):  0,2 Hz - 150 kHz

TIM:  Immeasurable

Slew Rate:  200 V/µsec

Square Wave Rise Time:  1,8 µsec

Square Wave Tilt, at 20 Hz :  less than 5%

Signal-to-Noise Ratio (IHF A Weighted, ref. 1 Watt output (New IHF)

Phono MC :  78 dB; 500 µV input

Phono MM :  80 dB; 5 mV input

Aux :  80 dB; 0,5 V input

Input Sensitivity/Impedance

Phono MC :  120 µV /47 k Ω 

Phono MM :  2,2 mV/47 k Ω , 125 pF

Aux :  135 mV/22 k Ω

Overload at 1 kHz :  200 mV/Infinite

RIAA Equalization (20 Hz - 20 kHz): ±3 dB

Tone Controls

Bass :  ±10 dB at 50 Hz

Treble :  ±10 dB at 100 kHz

Subsonic Filter:  15 Hz, 12 dB/oct

Tuner Section

Usable FM Sensitivity (dBf/µV - 75 Ω)

Mono:  10,8 dBf / 0,95 µV

50 dB Quieting Sensitivity (dBf/µV - 75 Ω)

Stereo:  14,6 dBf / 1,65 µV

FM Signal-to-Noise Ratio

Stereo:  76 dB

Capture Ratio:  1,0 dB

Alternate Channel Selectivity:  70 dB

iF Rejection:  110 dB

AM Rejection (45 dBf):  60 dB

Stereo Separation (1 kHz, 65 dBf, 100% mod.):  55 dB

FM T.H.D. (1 kHz, 100% mod.)

Mono :  0,06%

Stereo :  0,08%

Am Sensitivity:  15 µV (ext. Ant.)

AM Alternate Channel Selectivity:  45 dB

AM Image Rejection:  33 dB

AM IF Rejection:  60 dB

Dimensions (W x H x D):  440 x 134 x 368 mm (17-3/8" x 5-1/8" x 14-1/2")

Weight:  10 kg (21 lbs 19 oz)

 

Harman/Kardon hk590i receiver

Harman/Kardon's state-of-the-mind technology is expertly exemplified in the hk590i receiver

The hk590i offers a full 45 watts per channel, with 35 amps of High instantaneous Current Capability (HCC) available under peak demand conditions. With the transient power nearly doubling into 4 Ω  and continuing to increase dramatically into 2 Ω , the dynamic behavior approaches the ideal.

The Ultrawideband Frequency Response of the hk590i of 0,2 Hz to 150 kHz in the amplifier section works along with the phono section's dual RIAA circuitry to provide the most open, transparent sound.

The tuner section shuts down when the phono or aux buttons are pressed to eliminate the possibility of digital switching noise or bleed-through. Switchable bass and treble turnover frequencies allow for custom-tailoring of the tone-control characteristics to the listening environment. In addition, the hk590i has tone defeat and 2-way tape capability.

The digital synthesized quartz-locked tuning section of the hk590i can be tuned up or down manually or will scan automatically to the next station. For added convenience, stations may  be locked into one of the 8 AM and 8 FM memory presets.

 

 

Specifications

Amplifier Section

Power Output

RMS, per channel, (both channels driven into 8 Ω , 20-20,000 Hz):  45 Watts less than 0,08% T.H.D.

IHF Signal (Dynamic Power) at 4 Ω , 1 kHz :  95 watts

IHF Signa (Dynamic Power) at 2 Ω , 1 kHz :  120 watts

Negative Feedback (Overall):  12 dB

High Instantaneous Current Capability (HCC):  35 Amps

Power Bandwidth (at half-rated Output, 8 Ω ):  less than 10 Hz - 100 kHz

Frequency Response (at 1 Watt Output, +0 -3 dB):  0,2 Hz - 150 kHz

TIM:  Immeasurable

Slew Rate:  120 V/µsec

Square Wave Rise Time:  1,8 µsec

Square Wave Tilt, at 20 Hz :  less than 5%

Signal-to-Noise Ratio (IHF A Weighted, ref. 1 Watt output (New IHF)

Phono :  80 dB; 5 mV input

Aux :  80 dB; 0,5 V input

Input Sensitivity/Impedance

Phono :  2,2 mV/47 k Ω , 125 pF

Aux :  135 mV/22 k Ω

Overload at 1 kHz :  170 mV/Infinite

RIAA Equalization (20 Hz - 20 kHz): ±3 dB

Tone Controls

Bass :  ±10 dB at 50 Hz

Treble :  ±10 dB at 100 kHz

Subsonic Filter:  15 Hz, 12 dB/oct

Tuner Section

Usable FM Sensitivity (dBf/µV - 75 Ω)

Mono:  10,8 dBf / 0,95 µV

50 dB Quieting Sensitivity (dBf/µV - 75 Ω)

Stereo:  15,6 dBf / 1,65 µV

FM Signal-to-Noise Ratio

Stereo:  75 dB

Capture Ratio:  1,0 dB

Alternate Channel Selectivity:  70 dB

iF Rejection:  80 dB

AM Rejection (45 dBf):  52 dB

Stereo Separation (1 kHz, 65 dBf, 100% mod.):  50 dB

FM T.H.D. (1 kHz, 100% mod.)

Mono :  0,08%

Stereo :  0,12%

Am Sensitivity:  15 µV (ext. Ant.)

AM Alternate Channel Selectivity:  45 dB

AM Image Rejection:  33 dB

AM IF Rejection:  60 dB

Dimensions (W x H x D):  440 x 134 x 368 mm (17-3/8" x 5-1/8" x 14-1/2")

Weight:  8 kg (17 lbs 10 oz)

 

Harman/Kardon hk490i receiver

High Technology Receiver hk490i, features

High Instantaneous Current Capability (HCC)

Low Negative Feedback

Ultrawideband Response

Exceptional FM Audio Sound Quality

Digital Synthesized Quartz-locked Tuning

 

The hk490i, with its high instantaneous current capability of 18 amps, will develop far more power under peak loads than its rated 30 watts per channel. In fact, the dynamic behavior approaches the ideal, in that the transient power nearly doubles into 4 Ω  and nearly quadruples into 2 ohms. That means the hk490i gives you louder, clearer, cleaner sound than any other 30 watt receiver.

With its ultrawideband frequency response of 0,2 to 150 kHz, the hk490i delivers very fast transient response, while virtually eliminating TIM distortion. The tuner section shuts down when the phono or aux buttons are pressed to eliminate digital switching noise or the possibility of bleed-through. There are also two tape monitors with copying ability and a subsonic filter.

The digitally synthesized quartz-locked tuner provides precise, drift-free reception. The display is DC driven,, to eliminate switching noise and distortion, and an auto FM switch automatically shifts the tuner into mono when the signal is too weak for stereo reception.

For convenience, stations may be locked into one of the 8 AM and * FM memory presets. In addition, the auto-mode switch scans up or down to the next station automatically.

By the way, since our equipment has always been designed to play original master tapes, we've been ready for digital audio and coming software advances - long before they've been ready for us.

 

Specifications

Audio Section

Power Output rms (both channel driven into 8 Ω , 20-20,000 Hz):  30 watts per channel (at less than 0,08% T.H.D.)

High Instantaneous Current Capability (HCC):  18 A

Power Bandwidth (at half rated output into 8 Ω ):  less than 10 Hz - 100,000 Hz

Frequency Response:  0,2 Hz - 150,000 Hz (+0 -3 dB)

Slew Rate:  120 V/µsec

Square Wave Rise Time (at 20 kHz):  1,8 µsec

Square Wave Tilt (at 20 Hz):  5%

Signal-to-Noise Ratio IHF A weighted

Phono :  80 dB

Aux, DAD :  83 dB

Input Sensitivity/Impedance

Phono :  2,2 mV / 47 k Ω  and 125 pF

Aux, DAD :  135 V / 22 k Ω

Tone Control Characteristics

Bass (Boost/Cut) :  10 dB / -10 dB at 50 Hz

Treble (Boost/Cut) :  10 dB / -10 dB at 10 kHz

Loudness Control:  +10 dB at 50 Hz / -10 dB at 10 kHz

Filters

Subsonic :  15 Hz, 8 dB/octave

High Cut :  6 kHz, 6 dB/octave

Tuner Section

Usable FM Sensitivity (Mono):  10,8 dBf (0,95 µV /75 Ω )

50 dB Quieting Sensitivity

Mono :  15,6 dBf (1,65 µV / 75 Ω )

Stereo :  36,6 dBf (18,5 µV / 75 Ω )

Alternate Channel Selectivity70 db

Stereo Separation (1 kHz)50 db

FM Total Harmonic Distortion (1 kHz, 100% modulation)

Mono :  0,08%

Stereo :  0,12%

AM Sensitivity:  15 µV (external antenna)

General

Power Requirements:  AC 120 V, 60 Hz

Power Consumption:  100 W

Dimensions (W x H x D):  443 x 134 x 365 mm (17-7/16" x 5-1/4" x 14-3/8")

Weight:  8 kg (17 lbs 10 oz)

Sanyo RD-5030 cassette deck

A reliable, high quality performer with all the essential cassette deck features. The front-load design gives convenient access to all controls, and easy cassette viewing. Makes top-quality recordings from line level sources, or :live" with microphones.

 

Features:

DC Motor

This high-torque, Sanyo made motor is engineered for accuracy and long life providing a reliable, stable drive source for the rugged single capstan tape transport. Wow and flutter are held to inaudible levels.

Mechanical Tape Tension Servo

Automatically maintains steady tape "holdback tension to smooth load fluctuations on drive system and greatly reduces wow and flutter. Helps insure pure clean sound.

Record/Playback Head

Hard permalloy composition delivesr flat frequency response (to 16 kHz) and extended head life using any tape formulation

Illuminated VU Meters

Give a clear accurate picture of left and right channel recording levels for optimum recording quality without distortion

Dolby Noise Reduction

Virtually eliminates tape hiss, improving signal to noise performance by up to 10 dB in the critical treble region of the audio spectrum.

Separate EQ and Bias

Allows selection of accurate equalization and bias settings for optimum recording results with any tapes

Digital Tape Counter with Reset

Makes it easy index tapes and find any desired selection quickly

Full Auto-Stop Mechanism

Disengages automatically at either end of tape in any mode to prevent unnecessary tape and mechanism wear, eliminating the need to rush to shut the machine off.

Soft Eject

Air-damped cassette door glides open smoothly and quietly with the touch of "Eject"

 

Specifications

Tape:  cr02, Fe-Cr and Normal tape

Recoding System:  AC bias, 1/4 track stereo

Erasing System:  AC erasing, 1/2 track

Tape Speed: 4,75 cm/sec (1-7/8 ips)

Rewind and Fast Forward Time:  90 sec. C-60 cassette tape

Wow and Flutter:  0,08% WRMS

Frequency Response

CrO₂ Tape :  30 - 16,000 Hz

Fe-Cr Tape :  30 - 16,000 Hz

Standard Tape :  30 - 13,000 Hz

Signal-to-Noise Ratio

Dolby On :  62 dB

Dolby Off :  54 dB

Input Sensitivity

Mic :  0,3 mV / 10 k Ω

Rec/Play :  1 mV/ 10 k Ω

Line In :  50 mV / 50 k Ω

Output Level

Line Out :  0,6 mV / 3 k Ω

Headphones :  30 mV / 8 Ω  to 10 k Ω

Power Requirements:  AC 120 V 60 Hz

Dimensions (W x H x D):  420 x 286 x 132 mm (16-9/16" x 11-5/16" x 5-3/16")

Weight:  4,8 kg (10 lbs 9 oz)

 

McIntosh C-30 preamplifier

The McIntosh C 30 Preamplifier

McIntosh continues research into user desires consistent with high quality music reproduction.

Engineering that is aggressively inquisitive in the search for better ways to bring these user dictated requirements to a technologically superior, innovative and clearly useful result.

Appearance design that has long life, complements the living style, is complimentary to the owner, and is made of materials, whose characteristics permit a like new always appearance.

Easy, to operate; the unique McIntosh designed panels are always easily readable in your choice of home lighting. They are obviously designed by human beings for human beings.

Manufactured of carefully specified and selected component parts that have high quality and long predicted life.

Assembled by highly trained craftspeople who are dedicated to quality, accuracy and perfection.

Thorough verification of the desired capabilities and quality of performance by constant and complete setting throughout the entire manufacturing process.

Here is the latest advanced technology instrument that adds to the already formidable McIntosh reputation.

Five separate tone shaping controls provides musical spectra tone shaping. Each control adjusts two octave band segments to satisfy your personal preference or the demands of the program material. At the detent in the center of the rotation of each control the equalizer circuits are disconnected, completely removed from the operating circuits.

 

Loudness controls in ordinary equipment are usually simple, passive circuits connected to a portion of the rotation range of the volume control. As a consequence, loudness compensation accuracy is dependent on many variables such as speaker efficiency amplifier gain and differences in input level. The C30 loudness control is continuously variable, operates independently of the volume control, and its contour is accurately modelled after the family of "Equal Loudness" curves developed by Drs. Fletcher and Munson.

Ideal volume control tracking accuracy and noise free performance are two of the considerable benefits of the McIntosh Precision Step Attenuator. It is a thirty-two step, 70 dB range control with unheard of tracking accuracy within 1 dB. The extreme accuracy is obtained through special electronically controlled resistance element trimming. The accuracy and quiet operation are maintained because the switch commutator touches only the switch contact pad and not the precision resistor elements.

Headphone loudness is adjusted using the same type of Precision Step Attenuator. The loudness of the program when using headphones is controlled by this front panel control. The control adjusts the output to the headphone jacks only and does not affect the program loudness from the loudspeakers. Then, while wearing the headphones, adjust the headphone level controls to the desired loudness level.

The appearance of a McIntosh speaker eloquently of precision, quality, premier performance and long, trouble-free life. Consider the construction and materials used in the front panel and knobs. Each constituent part is selected for long, wear-resistant life and stable attractive styling. The panel itself is select white flint glass, free from bubbles, flow marks and other faults. It is silk screened on the reverse side with thermal setting epoxy screen inks which practically become a part of the glass. Then it is built into a brightly polished and anodized frame. The knobs used are meticulously machined of solid aluminum then anodized and thermally isolated.

 

Specifications

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

Max. Voltage Output: 

Main and Tape Output :  10 V from 20 - 20,000 Hz

Line/Headphone Output :  9 V (1,3 V with 8 Ω  headphones) from 20 - 20,000 Hz

Total Harmonic Distortion :  0,007% max. 20 -20,000 Hz at 2,5 V rated output

Sensitivity

Phono :  2 mV for 2,5 V rated output (0,4 mV IHF)

High Level :  200 mV for 2,5 V rated output (40 mV IHF)

Signal-to-Noise Ratio

Phono :  90 dB below 10  mV input (84 dB IHF)

High Level :  100 dB below rated output (86 dB IHF)

Maximum Input Signal

Phono :  100 mV

High Level :  10 V

Input Impedance

Phono :  47 k Ω  and 65 pF capacitance

High Level :  22 k Ω

Voltage Gain

Phono to Tape :  40 dB

Phono to Main :  62 dB

Phono to Headphone/line :  58 dB (51 dB with 8 Ω  headphones)

High Level to Tape :  0 dB

High Level to Main :  22 dB

High Level to Headphone/Line :  28 dB

(11 dB with 8 Ω  headphones)

Equalization Control:  Variable 12 dB boost to 12 dB cut at center frequencies of 30, 150, 500, 1500, 10 k Hz

LF-HF Filter:  Flat or roll-off at 12 dB per octave below 50 Hz and above 7,000 Hz

Semiconductor Complement:  28 Bipolar Transistors; 66 Field Effect Transistors; 15 Integrated Circuits; 91 Diodes; 1 Silicon Controlled Rectifier (SCR)

Power Requirements:  120volts, 50/60 Hz , 25 watts

Weight:  8,2 kg (18 pounds) net

 

Hafler DH-220 power amplifier

A State of The Art. Power Amplifier

The DH-220 follows in the path of the widely acclaimed DH-200 amplifier which has had highly laudatory reviews and widespread consumer acceptance. Like the DH-200 amplifier, this 115 watt per channel amplifier is available either in easy-to-assemble kit form or factory assembled. Either way it is a highly reliable piece of equipment which can satisfy the most hyper-critical listener, including the audiophile with the most difficult loudspeaker load. And, in kit form the DH-220 provides a significant cost saving for a pleasant few hours of assembly time, using factory pre-assembled and tested audio modules.

The DH-220 utilizes all polypropylene capacitors in the circuit path. All electrolytic are bypassed by polypropylene capacitors. This results in a clarity of sound unusual in an amplifier of this size.

Two completely assembled and fully tested amplifier modules comprise all of the kit's active circuitry, leaving just a handful of parts for the builder to complete the mechanical assembly and power supply wiring. This makes your job simpler and faster, and assures that your finished kit will easily meet all of its specs, and provide the ultimate in listening pleasure.

 

The DH-220 employs a unique circuit configuration using all discrete transistors, operating the very latest output devices, power MOSFETs, in a conservative array. The result is that the benefits of Class A output stages are obtained - such as high speed, minimal crossover distortion, and decreasing distortion at lower signal levels - without the disaddvantages of high cost, high heat, low efficiency and thermal instability that are a part of conventional Class A operation. Like other Hafler products, this new power amplifier has a completely symmetrical, mirror-image complementary push-pull circuit from input to output.

 

Exceptionally low distortion is apparent on reading the specifications, but such figures cannot detail the unit's true capabilities. The significance of achieving orders of magnitude reduction in total harmonic distortion and intermodulation distortion lies in the correlative elimination of other distortion products. Presently recognized test standards are seemingly unable to quantify to many listeners. The DH-220's characteristics of vanishing distortion at lower signal levels, and minimal indication of any forms of transient distortion, such as slew induced distortion, as observed at all power levels of square waves, tone bursts and pulse tests, will, we are confident, maintain its superiority as new standards and tests become applicable.

 

Specifications

Power Rating:  less than 0,02% T.H.D. at any power level up to 115 watts continuous average power per channel into 8 Ω  at any frequency between 20 Hz and 20 kHz with both channels driven.

Intermodulation DIstortion (SMPTE): less than 0,005% from 1 watt to 115 watt into 8 Ω

Typical Total Harmonic Distortion at 115 wats into 8 Ω :

1 kHz :  0,0015%

10 kHz :  0,005%

20 kh :  0,012%

Frequency Response (into 8 Ω ):

2 Hz to 160 kHz at 1 watt (-3 dB)

6 Hz to 60 kHz at 115 watts (-0,5 dB)

Typical Channel Separation:

20 Hz :  75 dB

1 kHz :  85 dB

20 kHz :  65 dB

Signal-to-Noise Ratio (Unweighted): better than 100 dB at 115 watts into 8 Ω

Input Impedance:  47,000 Ω

Input Sensitivity:  1,55 volts rms for 115 watts into 8 Ω

Damping Factor:

300 to 1 kHz into 8 Ω

60 to 10 kHz into 8 Ω

Rise Time:  10 kHz, 60 volts peak to peak square wave, 10% to 90% :  2,5 µs

Slew rate:  10 kHz, 60 volts peak to peak square wave :  30 V/µs

Semiconductors:  26 Transistors; 8 Power MOSFETs; 29 Diodes; 4 Zener Diodes; 1 Diode Bridge

Power Consumption:  Quiescent 125 VA, 115 watts into 8 Ω  ; 580 VA

Dimensions (W x H x D): 16" x 5-1/8" x 10-1/2"

Weight: 26 lbs net

Pioneer SX-9000 receuver

Solid State AM/FM MPX Stereo Receiver

Highest quality, low-noise silicon transistor are used in the advanced circuitry of the new SX-9000, the world's first receiver to include its own reverberation amplifier. There's plenty of power - 240 big watts (at 4 ohms) to handle any program material with ease. Sensitivity is 1,6 µV, a figure that ensures you'll get more stations, more clearly, always. The high-performance SX-9000 isreally versatile; you can use two tape decks with it, two record players, two headsets, two microphones. The microphone mixing feature makes this a receiver that invites your participation, in mono or stereo. You,, too, make music with the SX-9000. there's also a switch for selection of tone colors, in addition to the normal bass and treble controls. Tape-to-tape dubbing is simplicity itself.

The SX-9000 is the receiver that gives you circuitry on a par with professional designs plus the greatest variety of audio enjoyment available anywhere.

 

Features

A Multi-Purpose, Easy-to-Use Design

The SX-9000 was designed to give you a high degree of versatility in operation. You can, for example, use two microphones, tape decks and two headsets, with the SX-9000. all controls are rationally placed for easy use. The circuitry is quite advanced, on a par with professional designs.

Clean-Lined, Contemporary Appearance

The SX-9000 looks good, too. The front incorporates a folding panel that adds to its distinctive design. When in operation, the smoked glass dial window lights up with subdued illumination, and the source also lights up for quick identification.

High Performance Tuner

The SX-9000 employs the latest circuitry, including FET and ICs. The result is a professional receiver of exceptional sensitivity and stability.

Pre-Set Tone Colors

In addition to the normal bass and treble controls, there is a 4-position tone color selector knob. This provides quick switching from "flat" to "soft", "bass" or "vivid". These characteristics are symbolized in an illuminated window in the dial face.

Tape-to-Tape Monitoring

Two buttons on the front panel allow easy, one-touch monitoring of tapes "A" or "B" when you use the SX-9000 to copy directly from one tape to another.

Foolproof Microphone Use

When either microphone knob is set to Off, the unit operates in parallel to provide monophonic signals for both speakers without having to set the mode switch.

Reverberation Effect.

Also included is a reverberation effect knob. The degree of "echo" is easily read in the "Reveberation" window in the dial face.

Special "Overload Protection"

You can play up to three different pairs of speaker systems through the SX-9000 in combinations A, B, C, A+B, A+C, B+C.  If all three are accidentally turned on, however, the "Overload Protection" goes into action and the speakers are automatically shut off.

Earphone versatility

Because the SX-9000 has two "Earphones" output jacks, two people may listen simultaneously with earphones withpout having to go through an accessory junction box.

 

Specifications

Audio Section

Music Power Output

150 Watts total at 8 Ω  (IHF rating)

240 Watts total at 4 Ω

Continuous Power Output (Each Channel Driven)

62 W / 62 W at 8 Ω  (1 kHz)

85 W / 85 W at 4 Ω  (1 kHz)

Continuous Power Output (Both Channel Driven)

50 W / 50 W at 8 Ω  (1 kHz)

60 W / 60 W at 4 Ω  (1 kHz)

Total Harmonic Distortion:  less than 0,5% (at 1 kHz, Continuous power output)

Damping Factor:  30 (at 8 Ω , 1 kHz)

Frequency Response:  10 Hz to 35 kHz ±1 dB

Power bandwidth:  10 Hz to 35 kHz (IHF rating)

Hum and Noise

Phono Mag :  better than 80 dB

Aux :  better than 100 dB

Input Sensitivity/Impedance

Phono Mag 1, 2 :  2,5 mV/50 k Ω

Aux 1, 2 :  160 mV/50 k Ω

Tape Monitor A, B :  160 mV/50 k Ω

Microphone A, B :  1,6 mV/50 k Ω

Main Input :  500 mV/180 k Ω

Output Jacks and Terminals

Pre Output :  500 mV/13 k Ω 

Speakers A, B, C :  4 to 16 Ω

Stereo headphone Jacks A, B

Tape Rec jacks A, B

Tape Rec/P.b. Connector (DIN type)

Equalization Curve:  Phono RIAA

Controls

Bass :  +12,5 dB -14 dB at 50 Hz

Treble :  +9 dB -11 dB at 10 kHz

Filters

Low :  6 dB at 50 Hz

High :  12 dB at 10 kHz

Loudness Contour:  switchable to On-Off +12 dB at 50 Hz +7 dB at 10 kHz, with Volume control set at -40 dB

Reverberation:  easily controllable

Tone Color Switch:  4-position knob for "Vivid", "Bass", "Flat", and "Soft"

Microphone Mixing

Stereo :  through both "A" and "B" channels

Monophonic :  through either "A" or "B" channel

Semiconductors:  41 Transistors; 11 Diodes

FM Tuner Section

Frequency Range:  87,5 MHz to 108 MHz

IHF Sensitivity:  1,6 µV (at 98 MHz)

Capture Ratio:  1 dB (at 98 MHz)

Selectivity:  40 dB (at 98 MHz)

Image Rejection:  90 dB (at 98 MHz)

Signal-to-Noise Ratio better than 65 dB

Antenna Input:  300 Ω  balanced

FM MPX Section

Circuit:  Time-switching type demodulator; FM Mono-Stereo automatic selection

Channel Separation:  40 dB (at 1 kHz)

Harmonic Distortion:  0,8% (at 1 kHz) 100% Mod.

AM Tuner Section

Frequency Range:  525 kHz to 1,605 kHz

IHF Sensitivity:  9,5 µV

Image Rejection:  78 dB (at 1,000 kHz)

Antenna Input:  Built-in ferrite loopstick antenna

Semiconductors:  12 Transistors; 11 Diodes;  1 FET; 5 ICs

Miscellaneous

Power Requirements:  110, 120, 130, 220 and 240 V

Power Consumption:  350 VA (310 W) Max

Dimensions (W x H x D):  522 x 194 x 344 mm (20-9/16" x 7-5/8" x 10-3/16")

Weight:  15,7 (34 lb 8 oz)