This is an Apos Certified product. That means it's refurbished, like new, eligible for our 45-day return policy, carries an Apos Certified One-Year Warranty, and ships from our US facility. Currently, Apos Certified products are only available to customers with a US shipping address. We appreciate your understanding as we aspire to expand our offerings to a broader audience in the future.

An Airport For Your Aux Cables

If you’re swimming in aux cables from all of your analog devices, you’re going to love the xDuoo MT-603. Connect all of your analog sources for fast and convenient switching, while enjoying the benefits of tube amplification. 

3 RCA input ports

Connect a turntable, CD player, cassette player, radio, or other RCA-equipped unit into one of the MT-603’s four RCA inputs and then run them to a single amp. 

Warm tube pre-amplification

There are many benefits to tube pre-amplification, like boosting a weak signal before it reaches your amplifier or adding the warm tube sound to a solid state amplifier. The MT-603 uses a nine-pin 12AU7 vacuum tube. A classic of the tube world, the 12AU7 is easily replaced and rolled. 

Toneluck switches

Chunk. Clunk. Is there anything more satisfying than analog switches? Enjoy highly-durable, highly-satisfying switching with the MT-603’s TONELUCK switches. 

Aluminum alloy shell

There’s more than meets the eye with this pre-amp. A sandblasted aluminum alloy shell is a delight to operate, providing long-lasting protection and style. 

Product highlights

• 3 RCA inputs
• Sweet tube sound
• TONELUCK analog switches
• Professional capacitors
• Gold-plated RCA ports
• Aluminum alloy shell

Specs

• Inputs: RCA x3, 3.5mm x1
• Outputs: RCA x1
• Tube: 12AU7
• Power supply: DC12V/2A
• Frequency response: 10Hz - 40kHz (±0.5dB)
• THD+N: ≤0.01%
• SNR: 100dB
• Gain: 0dB
• Size: 4.7 x 3 x 1.5” (12 x 7.8 x 4cm)
• Weight: 0.79lbs (0.36kg)