This product is a hybrid type preamp that combines vacuum tubes and opire amps.
The opamp placed on the front level allows you to adjust the volume and sound quality, and the rear vacuum tube adds a combination of supersonic ingredients, and the benefits of vacuum tube and opire amplifier, so you can enjoy the unique sound of the vacuum tube without any unpleasant distortion even at the maximum volume.
In addition, we have put the reputation of high quality components to ensure that you can use it for professional audio applications, while still providing a low price and affordable price.
How to Use:
Please insert this product between the output of a CD player, DAC, silicone player, and other audio source player, and the power amplifier.
INPUT: Connects to analog output terminals such as CD players and DACs.
OUTPUT: Connects to analog input terminals such as power amplifiers, main amplifiers, etc.
Product Features:
■ Uses 6K4 as a standard vacuum tube.
TUBE-03J used 6J1 military tubing for the included vacuum tube, but since 6J1 is already difficult to find, TUBE-03J+ uses 6K4 as standard.
The design itself is done at the 6J1 base, and the 6K4 has been adjusted so that it is not a problem, but we recommend the 6J1 (sold separately) to enjoy the original power.
The 6K4 is not good, but the difference in taste, so try out your favorite vacuum tube is one of the fun of TUBE-03J+.
- Hybrid preamp with vacuum tube and opire amplifier
The front buffer and tone control parts are made with Texas Instruments "NE5532" (DIP socket type) for audio with high performance in terms of sound quality.
The rear stage is a hybrid structure of vacuum circuit and the advantage of vacuum tubes and opp amplifiers to enjoy high quality sound and depth and flavorful sound quality.
■Tone control function (tone direct function).
■ Gain setting function
The DIP switch on the back of the main unit allows for two levels of gain settings: High/Low.
■ Powered Active Filter Circuit by Power Transistor
■ Obviously selected parts
■ Reviewing the artwork improves its characteristics.
- Even with DC 12 V, this product is fully capable of supporting noise from boosting.
[Note]
AC adapter sold separately. Buy recommended AC adapter at the same time.
This unit is a preamp. A separate power amplifier is required to connect with passive speakers (not built-in amplifiers).
Product Specifications:
Brand:FX-AUDIO-
Product warranty period: 6 months from date of purchase
Input terminal: Stereo RCA terminal
Output terminal: Stereo RCA terminal
Functions: Tone control function (BASS/TREBLE), gain setting function (High/Low), and tone direct function.
Power Supply: Rated Voltage: DC 12 V; Power Supply Capacity: 1A or more (AC adapter sold separately)
Power Connector: DC Jack, Outer Diameter: 0.2 inches (5.5 mm), Inner Diameter: 0.08 inches (2.1 mm) (Center Plus Specification)
Accessories: Instruction manual (English language not guaranteed), 6K4 vacuum tube x 2 (type is Akebono light, Beijing or Shanghai, you cannot choose the product).
Size (H x W x D): 1.3 inches (33 mm) (max. including vacuum tubing): 3.9 inches (76 mm) x 3.9 inches (98 mm) x 4.6 inches (118 mm) (exclud
Weight: 11.8 oz (318 g) (with included vacuum tube installed).
Specifications and design may change without prior notice due to improvements.