The pre-amplifier version of the tube, the tube 6J5 is polished and enlarged. The tube has a bile taste better than 6J1, with high and low sound adjustment, Bluetooth 4.2 and analog input function.
Adding a tube to enlarge, Making the sound more Natural and Resistant,
The High Frequency is more Delicate, and the low frequency is Fuller.
Machine size: 102*80*138 (80MM is the height of the tube)
The user's audio source recording, speaker unit, and placement equipment are not necessarily perfect. The pure straight-through pre-level does not necessarily meet the demand.
At this time, the adjustment of the tone is very important. The effect of improving the high and low frequencies is obvious.
The best solution is to use the high, medium and low negative feedback tones of the Class A well-regulated power supply for both positive and negative pressures.
It has a delicate and natural tone, pure and thorough, and rich in layering.
The background sound of the board is very clean, the low frequency control of the music is better, and there is strength, and the midrange becomes smooth and soft.
1. With HIFI op amp Preamplifier same phase amplification + 2 segments of negative feedback Tweeter and Bass sound adjustment, adjustment range up to 12DB
2. With Bluetooth 4.2 input
3. The op amp has a gold-plated IC holder for easy replacement.
4. No need to connect potentiometer, you can directly connect DC power supply or notebook power supply
5. Can be connected to active speakers, amplifiers and direct drive headphones
Op Amps: NE5532
Voltage range: DC12-DC16V
Input: 1 channel RCA input + 1 channel Bluetooth input
Output: 1 channel 3.5 headphone output, 1 channel RCA output
Signal Switching: Bluetooth priority.
The phone turns on Bluetooth pairing, and the board connects to Bluetooth.
The phone disconnects from Bluetooth. The analog signal is automatically turned on.
1x 6J5 tube Bluetooth Preamp with case
- Unit Type: piece
- Package Weight: 0.5kg (1.10lb.)
- Package Size: 15cm x 15cm x 10cm (5.91in x 5.91in x 3.94in)
Channels: 2 (2.0)
Maximum Power Per Channel: NO POWER
Model Number: 6J5 vacuum tube Preamp Audio Machine
Treble Bass Adjustment: Yes
Vacuum tube: 6J5