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what really strikes you is the effortless sense of power, allied to a clear sense of musical direction. Berglund gives us a reading with a real sense of purpose and that’s just what the 450s deliver; there’s never any doubt where this performance is going. The VTLs keep everything pointing the same way, binding all the threads together, building and building them as Berglund demonstrates his mastery over both the score and the forces beneath his baton. Just when you think that the music can’t get any more intense, he releases the pressure in a long, long slide before ramping it up once again into one of the great orchestral climaxes. Roy Gregory-HiFi Pus
|Vacuum Tube Complement||8 x 6550 or KT-88, 1 x 12AT7, 1 x 12BH7|
20Hz – 20kHz <2.5% THD
|Tetrode: 425 Watts, Triode: 225 Watts
|Input sensitivity||Variable between 1-2V, depending upon DF setting|
|Output load range||4Ω – 8Ω|
|S/N ratio||450W Tetrode & 200W Triode: -110dB, 120Hz|
|Power consumption||Idle = 300W, Full power = 1000W|
|Primary mains fuse rating||100/120V = 15A Ceramic Slo Blo, 220/240V = 8A Ceramic Slo Blo|
|Input fuse||100/120V = 1A Ceramic Slo Blo, 220/240V = 1A Ceramic Slo Blo|
|Logic fuse||100/120V = 1A Ceramic Slo Blo, 220/240V = 1A Ceramic Slo Blo|
|B+ fuse rating||Plate Fuse – 2.5A fast acting 600V, Screen Fuse – 0.75A fast acting 600V|
|Dimensions W x D x H||18.5 x 18 x 9 inches (47 x 45.7 x 23 cm)|
|Weight||93lbs (42kg) per monoblock unpacked, 110lbs (50kg) packed|
Music lovers have long admired the VTL MB-450 Signature monoblock amplifier for outstanding performance at a fair value. The new Series III version of the long-standing MB-450 platform features a complete re-working of the entire signal path. Upgrades include a fully balanced differential input stage driving a differential phase splitter and a lower impedance push-pull output stage with a dramatically improved, fully balanced and enhanced interleaved and coupled output transformer. VTL’s innovative engineering brings the legendary sonic performance of the venerable 450 Signature platform to even greater heights.
The new MB-450 Signature monoblock amplifier gain further sonic benefits with a shorter, faster and fully balanced negative feedback loop, with zero global negative feedback. The negative feedback loop completely eliminates ringing and requires no capacitor compensation to maintain critical phase integrity and information. The result is an amplifier that remains stable even under the most demanding loads.
Adjustable precision-regulated bias and screen supplies hold the output tube operating point constant even under AC and main power supply fluctuations, and stabilizes the critical power supplies yielding tonal stability and sonic integrity especially during complex, dynamic signal conditions.
Another new feature is a user adjustable Damping Factor feedback control that allows the user to adjust the amplifier’s output impedance by varying the amount of negative feedback. Impedance can now be precisely set to suit the listener’s taste, and to improve control of the loudspeaker loads to deliver best performance.
The 4 possible settings are:
Finally, the amplifier has been substantially re-voiced with premium Mundorf silver oil capacitors, for a sweeter, more extended top end and mid range tonality that sounds more relaxed, with better flow and integration. Input stage capacitors are also bypassed.
Even a brief listen to the new MB-450 Series III monoblock amplifier reveals the successful implementation of the new technology. The mid bass has more authority and control while the critical midrange exhibits a new effortlessness in reflecting the natural instrumental colors and timbres. This greater sense of ease and control of the critical mid bass and midrange area enables the top end to sound completely natural and unconstrained. The impact of the music’s broad brushstrokes is unmistakable, while at the same time, the listener enjoys the indelible intimacy and micro-dynamics that lay deep inside favorite recordings.
Analog Audio of Minnesota offers world class stereo equipment to the Minneapolis/St. Paul and greater Minnesota area. Located in Maple Grove, Analog Audio of Minnesota provides a unique environment to audition home audio equipment and the latest record releases. Come visit us for all of your home audio and two channel stereo system needs.
Interested in vinyl playback? Analog Audio of Minnesota is recognized nationally for its experience, product offerings and unmatched set-up and ongoing service. To learn more about our analog products, browse our turntable department.
Analog Audio of Minnesota prides itself in its service. We offer in-home consultations in the greater Twin Cities area to learn about your goals and provide expertise to guide you through the purchase process. Of course, your stereo equipment will be expertly set up and optimized in your home by our service technicians. Questions with your audio equipment? Not to worry, our service staff is available to assist you.
To learn more about Analog Audio of Minnesota, please visit our About Us page. Ready to set up an appointment to audition a component or learn about our products and services? Give us a call at (612)808-0709 or drop us a note. We look forward to hearing from you.