Rogue magnum 99 tube preamplifier circuits

Totally transparent yet rich with detail, the Rogue Ninety-Nine preamplifier sets a new benchmark in ultra high performance audio. Designed and engineered without compromise, the Ninety-Nine boasts ruler flat response, tremendous bandwidth, huge dynamic range, and vanishingly low levels of distortion. However, extraordinary test-bench specifications tell only part of the story. While tube preamplifiers are widely regarded as providing the most natural and appealing sound, the Ninety-Nine preamplifier must be auditioned in person to be fully appreciated. The smooth yet detailed sound of the Ninety-Nine can only be described as remarkable, with a presence that will bring your system to new heights of sonic performance. From a technical standpoint, the Rogue Ninety-Nine utilizes four 6SN7 tubes configured in a mu-follower circuit topology.

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Content:

• A new pre-amp
• Rogue Audio Ninety-Nine Preamplifiers
• Rogue Audio 99 Super Magnum / Stereo 100
• Rogue Audio Sphinx V3 Review (Tube Amplifier)
• Rogue Audio Ninety Nine Super Magnum Preamp
• New Rogue Audio preamplifier - RP1
• Rogue Audio Super Magnum 99 Stereo Tube Preamplifier; Ninety Nine; Remote
• Call for Current Pricing
• Recommend a DIY tube phono stage (kit, schematic, whatever)

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A new pre-amp

Forums New posts Search forums. What's new New posts Latest activity. Members Current visitors. Log in Register. Search titles only. Search Advanced search…. New posts. Search forums. Log in. Install the app. Desire to learn and share knowledge of science required as is 20 years of participation in forums not all true. Come here to have fun, be ready to be teased and not take online life too seriously. We now measure and review equipment for free!

Click here for details. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser. Thread starter amirm Start date Jun 28, Prev 1 … Go to page. First Prev 9 of 12 Go to page. Stereophile reviewed and measured the V1 release of this amp in In that review, the conclusion was "Even without taking into account its affordable price, Rogue Audio's Sphinx offers excellent measured performance with little sign of the usual compromises made in class-D designs.

It also has an excellent, moving-magnet—compatible phono stage. Click to expand Forum Donor. As charleski said the results are comparable. Note 0. The plots are very interesting and revealing. Second harmonic distortion is the largest term for all three amps, but as amirm noted the Rogue has a "spray" of terms mostly not harmonic that are relatively high in amplitude, while the ARC preamp's higher terms drop about 20 dB.

The PrimaLuna has high second and third harmonic terms, then higher orders again drop precipitously. As SIY would say, it is the design, not the tubes, that are responsible for the distortion and noise. Last edited: Jun 29, Joined Mar 5, Messages 37 Likes I've never really understood why a manufacturer would design a box that looks 'solid state' but hide all the tubes inside it. Let's face it; it would sound a lot better if you could stare into the warm glow of the tubes. Joined Nov 7, Messages Likes Francis Vaughan said:.

I get amused by tube rollers, they ascribe all manner of sonic characteristics to the tubes themselves, when a very large part of the effect is that they have not taken into account that the load lines are designed for one tube type, and will not be correct for a different one, and thus the new tube is operating outside of its intended design parameters.

Ruprit New Member. Joined Jun 29, Messages 1 Likes 4. Joined Mar 4, Messages Likes To slightly change the subject, Rogue has taken something of a knocking here. But as the former owner of a number of Rogue products I can attest to the fact that the owner is very conscientious and responsive, and Rogue is a pleasure to do business with.

I wish everyone was as good as he is in the audio universe. Also, the Sphinx is their lowest ranking component, and as a dealer friend has pointed out, "they stuff that box with a lot of stuff. I see that so often, and a lot of times from people that know more about tube amps than I ever will. Some will even acknowledge that the tube is running outside of specs "at this bias, the big KT is just loafing along".

It isn't as if it is sounding exactly the same as if it were running at the proper voltage and bias but just has less power; it will likely not sound like a KT in an amp that is properly designed for it. I've messed with the power supply in my tube amp way more than anyone should and tried nearly a half dozen different model power tubes in it at the different voltage and bias levels. The same tube can sound really good and clear or muddy depending on where it is running. After realizing that, all the posts about "I put a KT66 in my amp and it sound more amazing than ever!

Or maybe they didn't like the cleaner sound of the properly setup tube they had and prefer the muddy sound of one that isn't running optimally. Or they are using the popular tube amp speaker the Klipsch RPM and need to do something to tame the sound. Many of them seem to settle on old Mallards. This seems like a perfect item for a double blind comparison to check for the audibility of the noise.

There is an ongoing quest to find someone that can truly hear a difference between items that test the same; how about a challenge to see if people can hear a difference between this and an amp that tests measurably better. Step up and prove that the numbers have relevance. Last edited: Jun 30, I once bought a Rogue preamp that was very highly regarded.

It was a demo with full warranty. When I played the thing it sounded horrible--very dry and harsh. I presumed something was out of adjustment from shipping and opened up the unit. Lo and behold, there were two Dutch Amperex vintage tubes installed instead of the factory modern ones. The dealer and I exchanged tubes and I was very happy with the sound with the correct ones installed.

Given the common practice tube "rolling" I gather that tube enthusiasts have no set objective definition of the sound characteristics they want and are constantly shuffling the tubes about. Anyhow, if you want your components to have a variable set of sound characteristics tube ones are ideal. Tube people appear to have a huge amount of fun "rolling" and it is extremely entertaining to hear them compare notes.

On going to the next page of the stereophile reviews, they have in fact also reviewed the V3. The addition of an MC mode to the phono stage is welcome, though I was puzzled by the noise problem I found at the preamplifier outputs with the MM mode. Aperiodic Active Member. Joined May 2, Messages Likes Doodski said:.

Reminds me of the Luxman LV hybrid. I never saw one blow up even with all the bad solder. DonH56 said:. Aperiodic said:. Gear that has the tubes sticking out of holes in the top cover Sometimes with ornate little cages or windows in the front panel so you can see that it's tube gear always annoyed me for some reason.

Possibly because both are completely unnecessary and designed to impress those who make purchase decisions about equipment more by eye than by ear. What he giveth with one hand, he taketh away with the other Joined Feb 26, Messages 72 Likes Ruprit said:.

This was the review that convinced me to purchase a Sphinx V2. After almost two years with them I wanted to try something new but "safe. For the most part, I liked the Sphinx. It sounded pretty much the same as the NCs, to the point where I wasn't sure if the tubes were adding much to the sound. It also had the benefit of being an integrated preamp, which I was very much in need of. What force me to sell it off after a month of ownership was the background noise.

When nothing was playing, there would be a buzz that was very audible from my listening position, six feet away.

Even during quiet moments, the buzz would overshadow the audio. The noise from the motorized volume pot would also be picked up in one of the speakers every time I changed the volume. I learned that this was a known issue and seemingly ok for owners. That was unacceptable for me. I still am always interested in Rogue Audio's products because they always look so interesting, especially their headphone amp. But I'll always remember my experience with the Sphinx.

It's a neat idea that could have been done so much better. For me, not everything needs to have record breaking measurements, but it at least needs to be free of annoyances and audible distortion. CrankyRat Member Forum Donor.

Rogue Audio Ninety-Nine Preamplifiers

A Rogues' Gallery. Setting: the Troubadour , a London dining pub with a live-gig basement bar, famous for being the scene of one of Bob Dylan's early performances - remember when he was still finding his way out of Arlo Guthrie? These days, it's also one of the better contemporary poetry venues. On a good night, the basement fills with about a hundred people hoarding 'round wooden tables with drinks in hand and knightly pursuits on their minds. Last night I went to hear Henry Shukman, a rapidly rising star in the bardic firmament. You think audio is ignored? Try poetry for a real take on how the great pleasures in life are being left to gather dust in a cupboard.

Rogue Audio 99 Super Magnum / Stereo 100

This item has some very light wear but still presents like new from your listening position. Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. Optional phono board not installed, input labeled "Phono" is line level. Designed and engineered without compromise, the Ninety-Nine boasts ruler flat response, tremendous bandwidth, huge dynamic range, and vanishingly low levels of distortion. However, extraordinary test-bench specifications tell only part of the story. While tube preamplifiers are widely regarded as providing the most natural and appealing sound, the Ninety-Nine preamplifier must be auditioned in person to be fully appreciated. The smooth yet detailed sound of the Ninety-Nine can only be described as remarkable, with a presence that will bring your system to new heights of sonic performance. Product Specifications. Reviews: Stereophile.

Rogue Audio Sphinx V3 Review (Tube Amplifier)

Updated to Super Magnum status in The unit is in very good condition, cosmetically and works perfectly. It comes with original metal remote control, power supply, and replacement black face plate as well as the silver face. Original box and manual included. I will also include 4 lightly used Chinese replacement tubes.

Rogue Audio Ninety Nine Super Magnum Preamp

Hi Guys, I am looking to try some replacement type tubes in my Rogue Magnum 99 pre amp. Just wanted to know if there were any others that would work and be linear? The 6SN7 superseded the 6F8G are are similar. You are asking about "linear", that is mostly down to your circuit design. A 6SL7 has slightly more gain.

New Rogue Audio preamplifier - RP1

Power Supply: Click to enlarge. Totally transparent yet rich with detail, the Rogue Ninety-Nine preamplifier sets a new benchmark in ultra high performance audio. Designed and engineered without compromise, the Ninety-Nine boasts ruler flat response, tremendous bandwidth, huge dynamic range, and vanishingly low levels of distortion. However, extraordinary test-bench specifications tell only part of the story. While tube preamplifiers are widely regarded as providing the most natural and appealing sound, the Ninety-Nine preamplifier must be auditioned in person to be fully appreciated.

Rogue Audio Super Magnum 99 Stereo Tube Preamplifier; Ninety Nine; Remote

Post a Comment. McGary Audio. Essential Sound. Thursday, September 1, Dynamic Duo Review!

Call for Current Pricing

Totally transparent yet rich with detail, the Rogue Ninety-nine preamplifier sets a new benchmark in ultra high performance audio. Designed and engineered without compromise, the Ninety-nine boasts ruler flat response, tremendous bandwidth, huge dynamic range, and vanishingly low levels of distortion. However, extraordinary test-bench specifications tell only part of the story. While tube preamplifiers are widely regarded as providing the most natural and appealing sound, the Ninety-nine preamplifier must be auditioned in person to be fully appreciated.

Recommend a DIY tube phono stage (kit, schematic, whatever)

Read times. Rogue 99 with Bob Backert mods. Pages: [ 1 ] Go Down. Please offer input. Hi, Anyone familiar with the Rogue 99 pre-amp?

By mobile homeless , December 26, in 2-Channel Home Audio. Interesting, Dean. I remember you writing this before and I thought it sounded different than what I was hearing. I do think the Octals also have a more open and see-thru sound than the mini tube variants.