Douk Audio P7 Vacuum Tube Preamp with Phono Equalizer for Record MM PSVANE ECC83 Newly Produced Adjustable High and Low Compatible with Records and

---------------------------------------------------------------------- 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ----------------------------------------------------------------------

Dual MM Phono & Line Input Functionality: Easily amplify records and a variety of other audio sources with one unit: The P7 combines the functionality of an MM (moving magnet) phono equalizer with the functionality of a vacuum tube preamplifier with a standard line input (RCA). Connect a turntable to enjoy the rich sound of your records, or connect a line output source such as a CD player, smartphone, or TV and enjoy the warmth and depth that only a vacuum tube can provide. Input switching is easily controlled with a front switch, making it the centerpiece of your audio system, perfect for a variety of applications. Utilizing genuine PSVANE ECC83S vacuum tubes: Replaceable design ensures future sound exploration. At the heart of the sound are two brand new ECC83 (12AX7 equivalent) vacuum tubes from PSVANE, a premium Chinese vacuum tube manufacturer. These aren't stock tubes; they're reliable, brand new tubes still in production. The design allows for easy replacement with other compatible tubes, such as Shuguang 12AX7B or 7025, depending on your preference. This allows for easy upgrades to accommodate tube aging and further sound quality development. Enjoy long-term use without worrying about using up old tubes. Equipped with XLR balanced output and high-pass filter (HPF): High-quality connection and low-frequency noise reduction for record playback. The XLR output terminals enable connection to compatible power amplifiers or active speakers for noise-resistant, wide dynamic range, and clear audio transmission. A dedicated high-pass filter (HPF)* is also built in for phono input. This effectively cuts out subsonic noise* below 20 Hz, caused by record groove distortion and player vibration, reducing unwanted speaker vibration and distortion. The result is a clearer sound image, improved clarity and a wider sound field, especially in the mid- and high-range frequencies, for a more harmonious playback experience. Treble/Bass Adjustment & Bypass Mode: Fine-tune your sound or preserve the original sound. The front panel features knobs for adjusting treble and bass levels within a ±6dB range. This allows you to fine-tune your sound to suit your speakers, your preferred music genre, and your listening environment. Alternatively, select Bypass mode if you want to pass the signal through unadulterated without any sound quality correction. This mode completely bypasses the tone control circuit, faithfully reproducing the original signal while preserving the nuances of a tube amplifier. This versatile mode offers flexibility to accommodate a variety of listening styles. Interchangeable Op-Amps & Reliable Power Supply Design: Enjoy further customization and a foundation for stable operation. The unit features three NE5532 pluggable op-amps, which can be replaced with other dual op-amps, such as the OPA2604 or MUSES02, to suit your taste. The op-amp's characteristics affect the sound character, allowing for greater enjoyment in fine-tuning the sound quality. While the operating voltage is simple, at DC12V/2A or higher, the power supply design prioritizes sound quality, generating high voltage (180V) internally to optimize the operating point of the vacuum tubes. This compact unit is packed with thoughtful features. The warmth of vinyl records and the rich resonance of vacuum tubes are captured with modern technology. The Nobsound P7 Vacuum Tube Phono Preamp accurately amplifies MM cartridge signals, utilizing the rich, satisfying tone of PSVANE's brand new ECC83 vacuum tubes. The XLR balanced output ensures low-noise transmission, while the HPF filter eliminates ultra-low-frequency noise. Adjust the high and low frequencies to your liking. This premium audio component offers interchangeable tubes and op-amps, allowing you to explore new sonic possibilities.