The STR-V6 stereo receiver is designed for those whit critical listening tastes and power-hungry musical appetites. It's precision engineered for those who demand formidable performance capabilities. But it's also human-engineered for those who insist on smooth uncomplicated operation. In other words, the V6 is Sony-designed Sony-produced. Which means maximum performance convenience and value.
Outstanding FM Tuner Design
From MOS FET RF front end amplifier to uni-phase IF filters and FM bandwidth selector the FM tuner section is designed for maximum performance. Outstanding FM quality with all types of broadcast signal conditions, whether you're in a weak, distant signal area or crowded, metropolitan dial location. An enclosure surrounds the MOS FET front-end circuitry including the integral 5-gang tuning capacitor and precision-built local oscillator. This combination results in higher frequency stability and exceptionally accurate dial calibration. In addition, the MOS FET front-end helps provide the V6 with its steep quieting slope, high interference rejection, high signal overload capability and low noise. It also assures high stability with both weak and strong signals.
High Selectivity, Low Distortion
The Sony V6 tuner section incorporates advanced circuitry to achieve excellent performance in the critical areas of selectivity, Total Harmonic Distortion and Stereo Separation. Our specially-designed, uni-phase 4-element ceramic filters are employed in the IF stage differential amplifier, together with five stages of limiters. This design assures a wide, flat passband, a smooth response slope and uniform phase characteristics. Which enables us to achieve high selectivity and low distortion, as well as excellent capture and Signal-to-Noise Ratios. And to maintain exceptionally wide stereo separation, we've included a Phase-Locked-Loop IC in the multiplex decoding stage.
To maintain consistently excellent FM sound quality, the V6 also includes a "selectivity switch", or FM IF bandwidth selector - so you don't have to settle for less than the best, even under adverse signal conditions. In the "normal" position, the lowest distortion and widest stereo separation can be achieved. But when alternate channel interference is a problem, the "narrow" position provides higher selectivity , lower noise.
Accurate Tuning
But the best in FM performance and value doesn't stop here. The V6 assures the ulmost tuning accuracy and convenience, too. First, there's the precision of frequency linear FM and AM dial calibration, which makes station selection easy. Next, there's the convenience of smooth, flywheel-coupled tuning action, plus the silence provided by interstation muting as you tune up and down the band. And to help you pinpoint the desired station, the V6 also features a center-station tuning meter, with a second meter that can be switched for signal strength indication.
Low-Noise Preamp Circuitry
The direct-coupled preamplifier section, which includes our newly developed, low-noise transistors, provides wide, flat frequency response for all high-level inputs, exceptionally accurate RIAA equalization and excellent Signal-to-Noise Ratios with all input sources. The advanced preamp circuitry also yields a phono overload capability of 200 mV - assuring more than adequate headroom with any of today's high-output phono cartridges. And with any type of cartridge you use, you can rely on precise RIAA equalization (±0,5 dB) which is maintained through a special DC negative feedback circuit, independent of voltage fluctuations.
Precision Control
The V6 provides for flexible sound system operation and precision controls. The clean, logically-arranged control panel allows precise sound adjustment, with maximum control convenience. A large easy-to-grasp, stepped-attenuator volume control has 41 detent positions, for smooth, yet positive control action. The studio-type volume control also eliminates tracking error between channels, a common problem with conventional potentiometers. The result is accurate left/right-channel level adjustment. For precise tonal compensation, the V6 features negative-feedback, stepped-attenuator bass and treble controls, each with 11 dent positions. There's also a tone control defeat position, for absolutely flat response with the tone controls switched out of the circuit. And for effective program-source noise elimination, the V6 is equipped with high and low filters. A loudness compensation switch is included, too.
When switched in, the loudness circuit provides both high and low frequency boost, for realistic tonal balance at low volume levels.
Rugged Power Performance
The V6's direct-coupled DC power amplifier section delivers clean, rugged power. Enough power to drive even inefficient speaker systems to realistic volume levels. With plenty of power reserve to handle sharp transient attack tones with clarity, and without overload clipping. At all output levels and with all types of musical content, the V6 delivers authoritative, well-defined bass, and clean, transparent midrange and treble.
To accurately monitor power being fed to speakers, the V6 features two power output meters, which indicate output levels in watts per channel, from 0,03 to 200 watts. The highly visible, easy-to-read meters offer maximum overload waring. In addition, they help achieve accurate stereo-channel balancing at both high and low output levels.
Accuracy is typical of the entire power amp design, from its differential comparator input stage to its parallel connected, true complementary-symmetry output stage, with positive and negative power-supply voltages. A design which assures low noise, high phase linearity and especially impressive low-frequency performance. The V6 power amp section also incorporates a high efficiency, high-regulation toroidal-coil transformer and two 10,000 µf capacitors. This combination assures the utmost operating stability and provides the V6 with a clean, effortless "feel" of power across the entire frequency spectrum
Specifications
Power Amplifier Section
Continuous Power Output RMS: 115 watts per channel minimum RMS at 8 Ω from 20 - 20,000 Hz with no more than 0,07% T.H.D.
Total Harmonic Distortion : no more than 0,07% at rated output
Intermodulation Distortion (60 Hz : 7 kh = 4 : 1): 0,07% at rated output
Damping Factor: 40 at 8 Ω
Residual Noise: 0,3 µV
Speaker Outputs: Two per channel
Headphone Outputs : One
Preamplifier Section
Input Sensitivity/Impedance
Phono : 2,5 mV/50 k Ω
Aux, Tape: 150 mV/100 k Ω
Phono Overload: 200 mV
Output Level/Impedance
Rec Out : 250 mV/ 4,7 k Ω
Frequency Response;
Phono : RIAA ±0,5 dB
Aux, Tape : 5 Hz - 50 kHz +0 -2,0 dB
Tone Controls
Bass : ±10 dB at 100 Hz
Treble : ±10 dB at 10 kHz
Filters:
High : 6 dB /oct above 9 kHz
Low : 6 dB/oct below 50 Hz
Signal-to-Noise Ratio (IHF-A weighted)
Phono 2,5 mV input : 75 dB
Phono 10 mV input : 87 dB
Aux, Tape 150 mV input : 100 dB
FM Tuner Section
Antenna: 300 Ω Balanced; 75 Ω unbalanced
Usable Sensitivity: 9,3 dBf (1,6 µV)
50 dB Quieting Sensitivity:
Mono : 14,2 dBf (2,8 µV)
Stereo : 37,3 dBf (40,0 µV)
Signal-to-Noise Ratio
Mono : 75 dB
Stereo : 70 dB
Capture ratio: 1,0 dB
Alternate Channel Selectivity:
Narrow Bandwidth Position : 80 dB
Normal Bandwidth Position : 50 dB
Image Rejection: 80 dB
IF Rejection: 100 dB
Spurious Rejection: 100 dB
AM Suppression: 60 dB
Total Harmonic Distortion
Mono : 0,08% at 1 kHz
Stereo : 0,15% at 1 kHz
Intermodulation DIstortion Distortion
Mono : 0,08%
Stereo : 0,15%
Frequency Response: 30 Hz - 15 kHz +0,2 -1,5 dB
Stereo Separation
At 100 Hz : 40 dB
At 1 kHz ; 48 dB
At 10 Hz : 43 dB
Subcarrier Suppression : 60 dB
AM Tuner Section
Sensitivity: 100 µV (ext antenna)
Signal-to-Noise Ratio : 50 dB
Selectivity: 35 dB
Image Rejection: 40 dB
IF Rejection: 40 dB
General Specifications
Power Requirements: AC 120 V 60 hz
Power Consumption: 200 W
AC Outlets:
Unswitched : 1 x 300 W max
Switched : 1 x 100 W max
Dimensions (W x H x D): 20-1/2" x 7-9/16" x 17-3/4"
Weight: 47 lb 12 oz
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