Feature
●T4 PLUS vacuum tube preamp will meet the needs of more HiFi audio MM / MC phono input, supports multiple input impedance switch(1KΩ/470Ω/220Ω/100Ω/47Ω/22Ω/10Ω), convert phono signal to line level signal, ensuring clear sound with low noise integrated circuit and high quality components
●3.5mm AUX input, amplify low-level audio signals from smartphones, tablets, PCs, MP3 and more, make it easier to drive amplifiers and active speakers and greatly improve sound quality
●UNIQUE AND AMAZING COMBINATION OF APPEARANCE: The T4 PLUS preamp is integrated with retro vacuum tube and VU meter. When you enjoy HiFi music, dancing in warm light with strong vintage feeling, dynamically decorate the audio system, providing different acoustic enjoyment
●JAN5654 Vacuum Tube and Vintage Warm Sound: By default, JAN5654 comes with all improvements related to sound quality, such as detail, clarity, instantaneity, richness, dynamic, and tone, much better than the 6J1 series, especially in human voice. Plug in tube socket for sound shaping, easy to change the sound signature to your preference
●3.5mm Headphone Output and Perfect Circuit Design: The T4 PLUS also incorporates a classic headphone amplifier circuit(2 * NE5532), which makes it easy to drive 32-300Ω headphones
Description
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| Helps improve sound quality and image quality. | Unique and Amazing Combination | Retro vacuum tube and VU meter integration | 2.0/2.1CH Power Amplifier/Player | It is also a preamp and a selector. | More beautiful than pictured, you wont regret | |
| Classification | Linear Power Supply | Vacuum Tube Amplifier/DAC | MM / MC Phono Amplifier / Preamp Headphone Amplifier | Power Amplifier/Player | Preamp/Selector | Sound Level Indicator |
| Maximum output | - | 100W + 100W | 300mV (MM)/ 3V(MC) | 50W x 2 + 100W (4Ω load) | 2 V (high gain mode) / 1.4 V (low gain mode) | - |
| Input | - | Bluetooth / USB / Coaxial / Optical / RCA | MM Phono/Turntable/3.5mm AUX | Bluetooth / Stereo RCA / U-disk | Bluetooth 5.0 / 1 Stereo RCA | MIC |
| Volume adjustment | - | ✓ | ✓ | ✓ | ✓ | x |
| Headphone Amplifier Function | x | x | ✓ | x | x | x |
| sayings | 4.5 x 4.5 x 1.9 inches (115 x 115 x 49.5 mm) | 115 * 98 * 54mm | 50 * 137 * 146mm | 130 * 128 * 30mm | 115 * 123 * 36mm | 7.1 x 0.6 x 0.6 inches (181 x 16 x 1 |
| Vacuum Tube | x | 6K4 | JAN5654 | x | x | x |
| High Bass Control | x | ✓ | x | ✓ | x | x |
| Channel | x | 2.0CH | 2.0CH | 2.0 / 2.1 / 2.2CH | 2.0CH | x |
| LED sound level | x | x | x | x | x | x |
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| Can be moved wirelessly. | Attractive Pre/Headphone Amplifier | Great Prime,You wont regret it | Super compact and super convenient | Great sound level indicator | Compatible with all 3.5mm headphones and 6.5mm headphones | |
| Specifications | VU Meter | Preamp, Headphone Amplifier | Preamp/Headphone Amplifier | Power Amplifier | Sound Level Indicator | Headphone Amplifier |
Note:
1. If you use MM/MC phono input preferred, please make sure the AUX cable is pulled out.
2. Stereo RCA and 3.5mm headphone jack output simultaneously, knob control the volume of two output at the same time.
Parameters
Brand: Douk Audio
Model: T4 PLUS
Audio input: MM phono/turntable/3.5mm AUX
Audio output: Stereo L/R RCA/3.5mm headphone jack
Headphone jack max output: 150mW @ 32Ω
Matching headphone impedance: 32-300Ω
AUX Input
AUX Input Level: 0.775V
RCA maximum output level: 1.5V
Frequency response: 20Hz-20KHz (±0.3dB)
S/N ratio: ≥110dB
THD: 0.2%
Package Contents
1 x T4PLUS Preamp
2 x JAN5654 Vacuum Tubes
1 x DC 12V power adapter
1 x 3.5mm to RCA cable
Phono IN
Phono Input Level: 0.005V
RCA maximum output level: 300mV (MM)/3V(MC)
Frequency response: conforms to RIAA characteristics (±3dB)
S/N ratio: 71dB
THD: 0.8%
Operating voltage: DC 12V
Dimensions (W x D x H): 2.0 x 5.4 x 5.7 inches (50 x 137 x 146 mm).
Package Dimensions (W x D x H): 11.8 x 9.0 x 2.56 inches (300 x 230 x 65 mm).
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3.5mm AUX input, amplify low-level audio signals from smartphones, tablets, PCs, MP3 and more, make it easier to drive amplifiers and active speakers and greatly improve sound quality. UNIQUE AND AMAZING COMBINATION OF APPEARANCE: The T4 PLUS preamp is integrated with retro vacuum tube and VU meter.When you enjoy HiFi music, dancing in warm light with strong vintage feeling, dynamically decorate the audio system, providing different acoustic enjoyment. |
JAN5654 Vacuum Tube and Vintage Warm Sound: By default, JAN5654 comes with all improvements related to sound quality, such as detail, clarity, instantaneity, richness, dynamic, and tone, much better than the 6J1 series, especially in human voice.Plug in tube socket for sound shaping, easy to change the sound signature to your preference. |
T4 PLUS vacuum tube preamp will meet the needs of more HiFi audio MM / MC phono input, supports multiple input impedance switch(1KΩ/470Ω/220Ω/100Ω/47Ω/22Ω/10Ω), convert phono signal to line level signal, ensuring clear sound with low noise integrated circuit and high quality components. |
3.5mm Headphone Output and Perfect Circuit Design: The T4 PLUS also incorporates a classic headphone amplifier circuit(2 * NE5532), which makes it easy to drive 32-300Ω headphones.It adopts an affordable and advanced architecture, including TI TPS5430 + 7205MOS, TL071 + JRC2068 phono preamp circuit, etc. Mini Size and Excellent Performance: All the details of the design, such as solid aluminum alloy knobs, gold plated terminals, built-in VU meter, gray one-piece molded aluminum alloy shell, make it look vintage and elegant. Not only MM / MC phono preamplifier, but also stereo audio preamp and headphone amplifier, especially designed for audio fans seeking HiFi sound. |
