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Updated Version of a Vincent Favorite Now Boasts Bluetooth Streaming
Vincent never leaves "well enough" alone! Not when the company decides that a proven design can be made even better. That's exactly the case with the new MK version of Vincent's acclaimed SA-T7 preamplifier.
The SA-T7 MK boasts the same basic circuitry as before, because the sound quality is outstanding. The big change is the addition of a built-in Bluetooth receiver, which allows you to easily stream your favorite music from your cell phone, tablet, or computer. So now you can enjoy your favorite digital music files wirelessly in addition to taking advantage of the SA-T7 MK's Toslink and coax wired digital connections.
In addition to the Bluetooth streaming, Vincent also added a nice cosmetic upgrade. The chrome elements on the SA-T7 front panel have disappeared, giving the SA-T7 MK a modern and elegant appearance. It now matches the appearance of Vincent's new SV-237MKII integrated amplifier.
"Packs an Audiophile Wallop"
"For the relatively reasonable MSRP of $3500, the SA-T7 MK packs an audiophile wallop… The tube choice is excellent and adds a lovely, detailed warmth to digital sources and vinyl. It’s a solid choice for matching the widest possible number of amplifiers," notes Anthony Kershaw, audiophilia.com, August 1, 2024.
"No matter the genre or medium, the Vincent SA-T7 MK Tube Stereo Preamplifier is an excellent partner and now adds Bluetooth streaming for a full-function component. German engineering and manufacture, lovely sound at a reasonable price," Kershaw concludes.
"The Highest Level of Craftmanship"
In his joint review of the Vincent SPT-700 monoblocks and SA-T7 preamp, ifidelity.net's Stephan Schmid observes, "The Vincent SA-T7 preamp and the SP-T700 monoblocks form a pre/power amp combination with the highest level of craftmanship, designed with smart technical innovations far from the beaten track. The result is a high sound quality level, which, thanks to the powerful monos, will not get wobbly knees even with current guzzlers."
"The Preamplifier That Has It All"
"At the core, the SA-T7 MK is a direct upgrade of the SA-T7 preamplifier. In fact, it is a better version of the SA-T7 in almost all the factors," reports reviewer Slava at makelifeclick.com, terming the SA-T7 MK "the preamplifier that has it all."
Combines Highly Linear Amplification with Extremely Low Noise
Vincent Audio's SA-T7 MK preamp combines highly linear amplification with extremely low noise and excellent speed for the best possible music enjoyment. Still used is the highly successful BestPentode-circuit by legendary designer Frank Blöhbaum, which eliminates the electrical current noise typical for pentode tubes.
Modern music sources place completely new demands on the performance of preamplifiers and power amplifiers. Conventional 'classic' vacuum tube circuit technology using the tried and true ECC81, ECC82, ECC83, or ECC88 tubes, for example, does not fully exploit the potential of vacuum tube technology, as it can be implemented today.
Tubes are capable of far more in terms of audio reproduction that they are often given credit for. And far from being outmoded by today's hi-res music, tube circuitry when properly engineered by Vincent Audio can bring out the best in everything from jazz to hip-hop to symphonies to movie soundtracks.
The BestPentode stage used by Vincent Audio has a much higher gain with less noise than comparable triodes. The 85A2, 6SCH9P, and 6SCH51P grid pentodes used in the SA-T7 MK can thus develop their full potential. The tubes are a new old stock (NOS) from storage that was used for amplifying high frequency signals and used 24/7 in the telecommunication.
Exceptional Purity with Analog and Digital Sources
Vincent's BestPentode vacuum tube circuit technology is used for the first time as a standard feature together with the clever new Vimala power source coupling system for exceptionally pure audio.
Not only does this new technology squarely position the SA-T7 MK in the vanguard of tube components, the SA-T7 MK also has a built-in DAC. This allows you to enjoy digital sources along your analog source components.
New Developments in Tube Technology
Vincent asked itself the question, is it possible to improve vacuum tube technology in hi-fi equipment so that it takes a quantum leap compared to what was available before? It's probably no surprise that Vincent's answer was yes.
With the SA-T7 MK, the German company has developed a preamplifier that raises the purity of the amplification of delicate music signals to a level of authenticity never conceived of before with tubes. This was made possible with a patent pending circuit technology, which is fundamentally different from classic tube circuitry.
Vincent innovation has avoided the usual shortcomings of vacuum tube technology. Thanks to the newly developed BestPentode circuit, developed by esteemed engineer Frank Blöhbaum – who designed and managed the production of the award-winning Thorens TEM 3200 power amp and TEP 3800 preamp – the current-distribution noise problems which have been typical of pentode-based designs for years are now a thing of the past.
The BestPentode circuit technology boasts far higher amplification with less noise than comparable triodes. The 6SCH9P and 6SCH51P frame grid pentode tubes used in the SA-T7 MK (one pair of each) can exploit its potential here to the full. The vacuum tube is a NOS (New Old Stock) component stored in old stocks fresh from the factory. The original use of these tubes was to amplify high-frequency signals in telecommunications circuitry which had to operate 24-hours a day, seven days a week. The guaranteed life for these tubes, developed in England for professional continuous use, was 10,000 hours. So this is a highly robust and dependable vacuum tube.
Analog and Digital Connections + Built-in 24/192 DAC
The SA-T7 MK includes connections for a wide range of audio sources, accommodating both analog and digital. Inputs consist of six stereo RCA-type connections, one Toslink optical digital connection, and one coax digital connection. The digital inputs let you enjoy two-channel audio from Blu-ray players, streamers, set-top boxes, CD players and much more. Inside the SA-T7 is a PCM 5100-based DAC providing 24-bit/192 kHz performance. It will play WAV, FLAC, APE, LPCM, MP3, ACC, AC3, and WM music files.
This premium DAC really brings out the best in your music when you stream content wirelessly from your phone, tablet, or other device via Bluetooth. The SA-T7 MK fully supports Bluetooth 5.0 for a quality listening experience. Stream files stored on your devices, music from streaming services, Internet radio, and more, depending on the capability of your source gear. This opens up a whole new world of listening enjoyment, and the SA-T7 MK is fully up to the task.
On the output side, the Vincent offers two stereo RCA-type preamp outputs along with one stereo RCA-type 'Record' out.
Precision Bass and Treble Tone Controls
The impedance converter stage was created using a type 6S3P-EV grid triode tube – a Russian military vacuum tube formerly used in MIG airborne radar systems and also designed for a long service life. The extremely pure audio transmission is ensured by the low-noise power supply couplings of the BestPentode stage. In fact, a special module was developed for this purpose, which Vincent calls the Vimala – Sanskrit for "pure, transparent, clear."
Another gain stage, comprising the 6H9P, 6H51P, 6S3P-EV, and Vimala modules, gives you control over the precision regulation of treble and bass, so that you can tailor the sound quality to your personal listening requirements. The tone controls can, of course, be bypassed if you prefer to listen to the purest music signal.
Outputs Designed for Critical Listening
Thanks to the extremely low output resistance of this novel amplifier technology – typically less than 1 Ohm – the amplifier outputs were designed with a purely resistive behavior. This ensures uniform transmission across the entire frequency range and compatibility with the finest cables and interconnects for critical listening. Two different output resistances (50 Ohm and 600 Ohm) are available.
Made in Germany
Critical circuit boards used in this component, including the patent pending Vimala circuitry, are assembled and hand-tested in Germany by designer Frank Blöhbaum. No one else has access to this proprietary circuitry, which is a Vincent Audio excusive. Final assembly and testing are also conducted by Frank Blöhbaum in order to maintain the highest possible level of quality in the finished product.
Vincent is justifiably proud of the SA-T7 MK. It represents the pinnacle of the company's long-term experience in the production of innovative vacuum tube amplifiers.
