Upgraded Preamplifier Amplifiers HiFi Tube Preamp Amp Speaker Sound Home Theater
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$30.36at WalmartChecked Nov 12
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The qiya tube preamplifier is a small desktop line-stage built around a 6A2 tube. It boosts low-level sources about 5x and feeds a power amp or active speakers; it cannot drive passive speakers or headphones. Its socket accepts a long list of pentode tubes, including 6J1, 6K4, 6AK5, 6AU6 and GE5654, so you can tune the sound by rolling tubes. A three-position switch adjusts the high-frequency lift. It is a budget way into tube sound for a desktop or home theater setup, but it ships without a power supply and needs a clean, shielded signal chain to stay quiet.
In stockSold by GoaderReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
This is a tube preamplifier. It must be connected to an active speaker or a power amplifier. It cannot connect directly to car speakers, passive speakers, headphones or phono amplifiers.
It takes low-level signals from sources such as a mobile phone, CD player, computer, TV or MP3 player. Voltage amplification is 5 times. The preamp works in Class A amplification. It supports replacement tubes, and the included 6A2 tube comes disassembled.
It has a three-level waveform switch for adjusting the high-fidelity lift. Shielded signal wires and a clean, well-filtered power supply are recommended, since unshielded wires or poor filtering can cause noise or leakage. The preamp also amplifies noise from the sound source, so a good source is recommended.
