Nobsound DA7 HiFi Bluetooth Tube Amplifier Stereo Audio Amp w/ VU Meters USB DAC

Features

Authentic Pure Tube Amplifier: Adopting 4*6P1 tubes for power amplification stage and 3*6N1 for voltage amplification and driver stages, DA7 delivers warm, natural sound with an expansive dynamic range, bringing an organic and immersive listening experience.

Versatile Input Options: Equipped with dual RCA inputs, a USB port, and Bluetooth, the DA7 enables various audio sources such as phones, tablets, laptops, and more, and features a dedicated input switch knob for seamless switching.

Fast Digital & Wireless Connectivity: The DA7 supports USB 3.0 for high-speed audio transmission and superior sound quality. Its dual-mode Bluetooth 5.3/5.0 ensures fast pairing, stable connections, and high-resolution wireless audio with lossless clarity.  

Dual VU Meters for Real-Time Monitoring: Featuring two analog VU meters that respond dynamically to the power amplification signal. The warm, rhythmic needle movement adds a classic touch while providing real-time audio monitoring.

High-Quality Construction: Featuring an imported wideband EI output transformer, gold-plated pure copper connectors, and a durable steel mesh protective cover that enhances tube safety while ensuring efficient heat dissipation.  

Parameters

Brand: Nobsound

Model: DA7

Audio input: Bluetooth / Stereo RCA / USB

Audio output: Banana speaker jacks / Stereo RCA

Tube model: 6P1*4+6N1*3

Rated output power: 12W×2 (4Ω); 8W×2 (8Ω)

Frequency response: 10Hz-40KHz (-3dB)

THD: 1% (1KHz)

SNR: 85dB

Input sensitivity: 300mV

Input impedance: 100KΩ

Output impedance: 4Ω / 8Ω

Power consumption: 150W

Max storage of U-disk: 128G

Supported file system of U-disk: FAT32 / ExFAT

Supported formats of U-disk: MP3 / WMA / APE / FLAC / AAC / WAV

Input voltage: AC 220V IN

Dimensions (W*D*H): 318*305*155mm / 12.52*12.01*6.10in

Package dimensions (W*D*H): 410*350*220mm / 16.14*13.78*8.66in

Net weight: 7.6kg / 16.75lb

Package weight: 8.5kg / 18.74lb

Packing list

1* DA7 Tube Amplifier

1* Power Cord

1* Bluetooth Antenna