(According to customers' need, now MC5 are all 1K version.) MC5 stereo audio mixer with 4 channel 3.5mm inputs and 1 channel 3.5mm output, which is capable of mixing the signals from CD players, instruments, portable recording devices, video playback devices and so on. | Mini size with exquisite appearance, passive circuit design won’t boost or reduce the audio signal. And MC5 can work without battery or external power, very convenient to carry and use any time any where. | With one main output volume knob and four independent input volume knob, 4 channels input have no interference to each other. Providing the highest sonic quality even at maximum output level. | Please note this is a passive mixer. It cannot be used for headphones directly. You need to add a headphone amplifier between the mixer and headphone.

AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE. 5654W tubes should only be used to replace 7-Pin /6Ж1/6J1/6J1P / 6J1P-EB / 6Zh1P-EV/6AK5/ 6AK5W and EF95 tubes. DO NOT SUBSTITUTE FOR ANY OTHER TYPE OF 7-pin tube. | Tested and matched Pair tube (2PCS) of low-noise 7-Pin United States GE JAN 5654W are considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio

A fantastic kit for all the people who wash their records in the sink | This handy device keeps the labels dry and gives you a handle to hold and rotate the records under the running tap | Ultra thick acrylic material, very dense, effective protection of records | Innovative R rounded design for favorable drainage. Large nut for easy operation | Ultra thick acrylic material, very dense, effective protection of records; Douk Audio Studio Exclusive patented design, Quality assurance

KN102 is a 2-way passive XLR splitter with 1-IN-2-OUT and 2-IN-1-OUT version. You can choose freely according to your audio device. This is 2-IN-1-OUT version. | KN102 is designed for customers have several audio equipment with XLR balanced output. It is conveniently for you to switch different sound sources and compare their sound performance. | With MIX switch, A and B independent selector and one key mute function, you can freely choose A Mode/ B Mode /Mix mode(A and B output at the same time). | All aluminum shell to effectively avoid external noise and guarantee high-quality signal transmission; Gold-plated XLR ports to ensure high reliability electric connection and minimize signal attenuation during its transmission. | Exquisite appearance with mini size; can be easily placed and carried to enjoy the charming of music everywhere.

VFD253 integrates mutiple functions into a whole: As an audio spectrum analyzer: adopts dedicated green VFD display screen with 25 × 15 high resolution, guarantee the accuracy of each frequency band. As a Bluetooth receiver and audio switcher: besides microphone pickup, also with Bluetooth 5.0 and 2 groups of 3.5mm AUX input, works perfectly with your phone/PC/game player/amplifier/speaker etc. As a high-precision clock: using RX8025T built-in crystal oscillator whose clock accuracy is ±3ppm, year error within 1 minutes, very cool and interesting. | Wide frequency range & special AGC display: 80Hz-16KHz frequency sweep, high-precision display even can do frequency point test. Speical AGC algorithm and customized output curve, ensure ideal visual effects even the input signal is in a small to large range, avoid that no display when input low and display in full screen when input high. | Many adjustable items & display effects: gain, brighntness, falling speed of main light column, holding time and falling speed of the peak can be adjusted separately. 5 music spectrum display mode and 2 clock display mode, all settings with power-off memory function, no need to set again after restarting. | Attractive looking and convenient use: with remote control, easy to adjsut all settings and see the music level status in real time and every slight change of sound.CNC machined aluminum and transparent acrylic case, both solid and beautiful, compact design not occupy your desktop space.

Universal Compatibility: Designed to fit 7-inch, 10-inch, and 12-inch vinyl records with a central hole diameter of approximately 6.5mm, ensuring broad applicability across various record sizes. | Effective Label Protection: Safeguards record labels from water damage during cleaning by securely clamping both sides of the label, allowing for thorough cleaning without compromising label integrity. | Secure Grip Design: Equipped with a secure grip, the label protector facilitates the suspension of the record, allowing for cleaning without touching the vinyl surface. | Durable and Waterproof Construction: Made from high-quality, waterproof materials, this clamp ensures longevity and reliable performance during repeated cleaning sessions. | Essential Tool for Vinyl Enthusiasts: An indispensable accessory for audiophiles and collectors aiming to maintain their vinyl records in pristine condition, preserving both sound quality and label appearance.

Versatile Connectivity: Easily switch between four audio sources with our 4-in-1-out/1-in-4-out configuration, perfect for seamless transitions between gaming, calls, and music. | Compact & Portable: MC104’s ultra-small design fits any desk setup or travel bag, making it the ideal audio solution for on-the-go professionals and audiophiles. | No Power Needed: Enjoy a pure, unaltered audio experience with our passive selector that requires no external power, preserving sound quality without any interference. | User-Friendly Controls: Manage your audio with ease using the intuitive input selector, volume control, and one-button mute function, all designed for quick adjustments. | High-Quality Build: Constructed with customized potentiometers and isolation modules, MC104 ensures minimal background noise and reliable performance for all your audio needs.