Kool-Aid? Thats so 60's..Red Bull Baby!.I need to clarify further on feedback designs and why preamps with feedback methods are inferior. Since the early 80's, designers of Preamps loop and feedback the signal current through the Preamp several times which raises the gain level. Your best Preamps in the world all have S/N ratios between 125 and 135 db's since they use different methods to avoid or minimize feedback looping. The negative with feedback is lower S/N ratio and more distortion. FM Acoustics in the 90's developed the most advanced circuitry called feedforward instead of feedback which avoids looping the signal. This keeps noise and distortion out of the signal path and boards. Hegel has come up with a patented feedforward design they call SoundEngine which eliminates feedback, equal to the FM Acoustics design, which is why their $7500.00 P-30 Preamp sounds and performs like a Preamp costing $30K and above, and why the P-30 has a S/N ratio of 132 db's. A real game changer. No bullshit. I recently heard the Hegel system with the P-30 through a pair of Amphion speakers. Blew me away. Very, very analog sounding. Rich, lush, slightly warm, with very smooth highs and mids. Bass was killer.
World's best Pre-amp for $10K and above?
Looking for the HOLY GRAIL in Audio? Here it is. I'm in my early sixties and retiring to my final system, which I was going to purchase during the past twelve months and decided to put on the brakes, and investigate whats out there as the most advanced engineered high end audio products for the money in the market place. As far as I'm concerned, the two top engineers in the world for the best Amp and Preamp at low prices are Bent Holter with Hegel Audio in Norway and Roger Sanders with Sanders Sound in Colorado. Why? The Hegel P-30 Pre-amp is a game changer, and will easily compete with Pre-amps at $30K and above. The FM Acoustics 268 Preamp that retails for $107K, uses a technology thats called "feedforward" instead of feedback.
Amps and Pre-amps since the early 80's have all used either global feedback, zero feedback or local feedback to filter out noise and lower distortion by sending and filtering the feedback current to filter capacitors or or an extra filter transformer. A small amount of voltage feedback occurs at the output stage in amps and preamps which goes back into the parts and boards causing noise and distortion which smears the quality of the music.The best Preamps in the world all have S/N noise ratios at 125 db's or above. The Hegel P-30 Preamp uses the same feedforward technology as FM Acoustics but is a more current design that Bent Holter calls "Sound Engine" patented technology that eliminates feedback which is why the P-30 Preamp has a S/N ratio of 132 db's, which has never been accomplished in high end audio with a Preamp costing $10K or below. The same applies to Roger Sanders Magtech amplifier which uses a patented linear voltage regulator that controls and regulates voltage with no excess voltage going back into the amp causing heat and distortion problems. The amp puts out 900 watts into 4ohms. Krell makes a pair of mono blocs that also use a similar voltage regulator. The amps are $100K a pair. HERES THE PERFECT SOLID STATE SYSTEM. A Hegel P-30 Preamp. A Sanders Magtech amp, A pair of Aerial Acoustics 7T speakers. The worlds finest SACD player, the Playback Designs MPS-5, designed by Andreas Koch, who invented SACD technology when he worked for Sony. He built the worlds first outboard DAC in 1982 and is legend in digital engineering. The MPS-5 is the most analog sounding player on the market which costs $17K. The Hegel P-30 is only $7500.00 and the Magtech amp is only $5K. The Aerials are $10K. Buy the solid core cables from Morrow Audio. They are low capacitance cables which matches up perfectly with these components. This combination sounds like the very best tube and solid state gear on the market. The whole system will cost about $42K but will sound as good as any system costing $200K. All of these products are game changers. If you want better looking cabinets and faceplates, then blow your money, but you will not get better performance for what this system has to offer. It is the HOLY GRAIL you are searching for and there is no better combination for the total cost of the system.
Amps and Pre-amps since the early 80's have all used either global feedback, zero feedback or local feedback to filter out noise and lower distortion by sending and filtering the feedback current to filter capacitors or or an extra filter transformer. A small amount of voltage feedback occurs at the output stage in amps and preamps which goes back into the parts and boards causing noise and distortion which smears the quality of the music.The best Preamps in the world all have S/N noise ratios at 125 db's or above. The Hegel P-30 Preamp uses the same feedforward technology as FM Acoustics but is a more current design that Bent Holter calls "Sound Engine" patented technology that eliminates feedback which is why the P-30 Preamp has a S/N ratio of 132 db's, which has never been accomplished in high end audio with a Preamp costing $10K or below. The same applies to Roger Sanders Magtech amplifier which uses a patented linear voltage regulator that controls and regulates voltage with no excess voltage going back into the amp causing heat and distortion problems. The amp puts out 900 watts into 4ohms. Krell makes a pair of mono blocs that also use a similar voltage regulator. The amps are $100K a pair. HERES THE PERFECT SOLID STATE SYSTEM. A Hegel P-30 Preamp. A Sanders Magtech amp, A pair of Aerial Acoustics 7T speakers. The worlds finest SACD player, the Playback Designs MPS-5, designed by Andreas Koch, who invented SACD technology when he worked for Sony. He built the worlds first outboard DAC in 1982 and is legend in digital engineering. The MPS-5 is the most analog sounding player on the market which costs $17K. The Hegel P-30 is only $7500.00 and the Magtech amp is only $5K. The Aerials are $10K. Buy the solid core cables from Morrow Audio. They are low capacitance cables which matches up perfectly with these components. This combination sounds like the very best tube and solid state gear on the market. The whole system will cost about $42K but will sound as good as any system costing $200K. All of these products are game changers. If you want better looking cabinets and faceplates, then blow your money, but you will not get better performance for what this system has to offer. It is the HOLY GRAIL you are searching for and there is no better combination for the total cost of the system.
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Good point..I jumped the gun on the D.R.E.I. topology and moved on..however, Bent Holter is in a whole different league at Hegel. He holds a degree in micro electronics and is a transistor engineer. His challenge was to equal FM Acoustics at a fraction of the price with his Sound Engine patent. Mission accomplished. I'm still shaking my head how damn good the P-30 sounds for $7500. I have not heard any better up to $35K. And its been compared to units at much higher prices. |
Wow, Audiozen, I don't know what kind of crazy stuff you're on, but keep it to yourself! You can improve your presentation by brushing up on your descriptions -- see the Audiophile Cliché Generator for some ideas! |
Kana813, certainly nothing like what is being claimed in this thread! We have found though that if you want tubes to be quiet, you have to do very similar things that the transistor designers do- fully differential, with excellent regulation and 2-stage constant current sources. We developed a proprietary voltage regulator that gives our supplies some of the best numbers in the business, and to date I think we are the only manufacturer using 2 stage CCS circuits in our differential amplifiers. Plus we have that patented direct-coupled output, a real game-changer :) Of course the entire preamp is zero feedback and I think we are still the only manufacturer that has sorted out how to do differential equalization, a real game-changer :) The noise floor on our line stage depends on low noise tubes but is typically in the 100 db range, so its quiet on horns. Sorry if I am being a bit flippant; when I hear cliches like this sometimes it bothers me, especially when its obvious that the user of said cliches has not seen/heard everything thing out there that might have an innovation in it. |
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