INTRODUCTION

Congratulations on your purchase decision! We at Rogue Audio truly believe that our amplifiers provide the “smartest” value in high-end audio. If you have never owned a vacuum tube amplifier you will be thrilled by the silky-smooth sound and incredible detail that only a tube amplifier can provide. And with the Stereo 90 amplifier, you can be sure that you are getting the very best in tube amplification. We at Rogue Audio are extremely proud of our products and want you to enjoy them to their fullest potential. So please, take the time to read through this short manual so that you can be confident that you have set up your amplifier properly.

UNPACKING THE STEREO 90 POWER AMPLIFIER

Tools required: # 2 Philips Screwdriver

WARNING - This amplifier uses voltages that could cause injury or death. Never open the amplifier while it is plugged in, and always wait at least one hour after turning the unit off to unplug and open the unit. Lethal voltages can remain in the electronics after the unit is unplugged.

The Stereo 90 amplifier has been painstakingly inspected for cosmetic flaws during and after assembly. In order not to damage the cosmetic appearance of your amplifier it is important that you follow the unpacking instructions carefully.

1.Remove the Styrofoam packing material from the box, and remove the two small white boxes. One of the boxes contains the Output Tubes, while the other contains the power cord.

2.Lift the unit from the box, and carefully remove the protective plastic bag. Remove the shipping pallet from the bottom of the amp. The pallet serves two purposes. First, and foremost it acts to tie down the mechanically isolated transformer platform. Secondly, it provides strength to the main chassis. Both of these are critical to ensure that no damage occurs in transit.

3.Save the packing materials. The packing materials and box have been carefully designed to protect your valuable equipment during shipping so you don’t want to throw them away.

4.Remove the top cover of the amp using a #2 phillips screw driver to remove the 10 cover screws. Using a glove or a clean dry cloth , install the tubes using the diagram in Figure 1. The Output Tubes will have a label designating their proper locations.

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Rogue Audio owner manual Introduction, Unpacking the Stereo 90 Power Amplifier
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Stereo 90 specifications

Rogue Audio Stereo 90 is a high-performance power amplifier that stands out in the competitive landscape of audiophile equipment. Renowned for its exceptional sound quality, the Stereo 90 embodies a blend of innovative technology and classic design principles, making it a favorite among music enthusiasts and professionals alike.

At the core of the Rogue Audio Stereo 90 is its all-tube design, which delivers a warm, rich sound that many audiophiles cherish. It utilizes a pair of KT90 output tubes, known for their high power handling and superb linearity. This tube configuration enables the amplifier to produce up to 90 watts per channel into an 8-ohm load, making it versatile enough to drive a wide range of speakers with ease and finesse.

One of the standout features of the Stereo 90 is its push-pull topology, which enhances the performance of the amplifier by minimizing distortion and improving overall efficiency. This design approach allows the Stereo 90 to maintain clarity and detail across the frequency spectrum, delivering a lifelike and engaging listening experience.

In addition to its exceptional sound quality, the Rogue Audio Stereo 90 also boasts a robust, high-quality build. Its chassis is constructed from heavy-duty steel, ensuring durability while also minimizing vibrations that can negatively impact audio performance. The amplifier is equipped with high-quality components throughout, including premium capacitors and transformers, which further contribute to its reliability and sonic excellence.

For ease of use, the Stereo 90 features a front-panel bias adjustment, allowing users to easily set the bias on the output tubes for optimal performance. The amplifier also includes a variety of input options, including RCA inputs, making it compatible with a broad range of source components.

The aesthetic appeal of the Rogue Audio Stereo 90 cannot be overlooked. Its classic design features an attractive black chassis with chrome accents, giving it an elegant yet timeless look that will complement any audio setup. The rotary controls add a touch of vintage charm while also providing intuitive access to its features.

In summary, the Rogue Audio Stereo 90 is a powerhouse amplifier that combines advanced tube technology with meticulous craftsmanship. With its ability to deliver stunning audio fidelity, it has become a cornerstone in many audiophile systems, captivating listeners with its detailed soundstage and dynamic range. Whether used for casual listening or critical listening sessions, the Stereo 90 proves to be an exceptional choice for anyone looking to elevate their audio experience.
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