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Monolith 9X - 9 Channel Amplifier (3x200W & 6x100W) - $1,200 (Briargate (COS))
Woodmen Rd near Austin Bluffs
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In perfect working order, used for about 3 years (and boxed up for about 1). This beast of an amp is ultra-powerful and extremely sturdy. It is 82 pounds of clean ATI-built power that can drive a very demanding surround theater setup. Perfect for a 1-rack solution to Dolby Atmos, running either a 5.x.4 or 7.x.2 setup!
I currently have this model installed in my 5.1.4 theatre setup, so a buyer could hear this equipment in action before purchasing (and if we can schedule when my family isn't home, it can definitely achieve reference level sound--loud enough to shake the walls). FYI: I am home on weekdays, so morning/afternoon weekdays could be a good time if you want to try audio tests...
The reason I have another 9X to sell is because this is coming from my father, who asked me to sell it on here for him (I was so impressed with his that I purchased my own a couple years ago!). It is coming from a smoke free and pet free home.
Dimensions (Overall): 10.0 inches (H) x 10.0 inches (W) x 20.0 inches (D)
Weight: 82 pounds
Number of channels: 9 speaker channels
Model name: 33306
Number of audio inputs: 18
You can do a deep dive into the manufacturer specifications here:
https://www.monoprice.com/product?p_id=33306&srsltid=AfmBOop04jKEnhVC0xTIQCye-saHbwPeNVIM0FNcM89lmNHOrKv-Q4Nc
This youtube performance review could also be useful for a prospective buyer: https://www.youtube.com/watch?v=LCbXKTruOqY
And here are some of the specs from their product page:
Description:
The Monolith 9X is a state-of-the-art, high-performance, audiophile-grade 9 channel home theater amplifier. With three channels of 200 watt amplification and six channels of 100 watts of amplification, the Monolith 9X is capable of driving the most demanding home theater systems and reproducing the most dynamic soundtracks, while also articulating all the subtle sonic details found in music. Supercharge your existing receiver or create the foundation of a no compromise home theater system with the Monolith 9X.
Power:
The Monolith™ 9X is a 9‑channel amplifier comprised of 200 watts per channel into 3 channels, and 100 watts per channel into 6 channels of amplification. This rating is measured with all channels driven across the full power bandwidth of 20Hz to 20kHz into 8-ohm loads. Additionally, there is NO current limiting and there is no protection circuitry in the amplifier circuit path. Even if the speakers' impedance drops to a low level, the Monolith is robust enough that the current is never limited.
Dynamics:
High resolution audio delivers the best in music and movie soundtracks. You deserve an amplifier capable of delivering clear and clean audio across a wide dynamic range! With a more than 100dB signal to noise ratio, the Monolith 9X can clearly and accurately articulate the quietest portions, the loudest portions, and everything in between.
Two Toroidal Transformers:
The source of an amplifier's power. Each amplifier channel gets its own set of transformer windings, and also its own storage capacitor. Essentially, each channel has its own power supply meaning if one channel gets maxed out, the other channels are not affected.
Class AB: More efficient than Class A, many high end, audiophile grade amplifiers utilize a Class AB design.
Made in U.S.A.: The Monolith 9X is designed, engineered, and assembled in the United States of America.