Schiit SYS Passive Preamp Volume Control and 2-Input Switch (Silver)
It's a 2-input passive preamp that adds no distortion, and gives you complete volume control.
Works with pretty much any line-level source.
It's just a 2-way switch and a volume knob. That's all.
Designed and assembled in the USA from high quality components.
For those times when you want to switch sources without unhooking one and rehooking up another. Hook them both up to SYS and have full control over which one you're listening to and at what volume.

Fosi Audio SK01 Headphone Amplifier Equalizer Preamp with Bass Midrange Treble Tone Control and Loudness Compensation Portable Class A Analog Amp for Electric Guitar Instrument with 3.5mm 6.35mm Jacks
Combo Design: Whether as a powerful headphone amp, a customizable analog preamp, or an acoustic equalizer for the instrument, it effortlessly elevates your listening experience, delivering exceptional sound quality and personalized sound signatures.
Tri-Band Control: By enabling adjustments for treble, midrange, and bass, in conjunction with central detents for tone-defeating, achieving the most suitable equilibrium becomes effortless. Up to 2400mW power is available in high impedance mode.
Diverse Capabilities: Instantly restore original sound with the one-click tone- defeating button; Immerse yourself in music during the quiet hours using the loudness function; Tailor the gain level to accommodate headphones with various impedances through the gain level switch.
Superb Finishing: The aluminum alloy body showcases meticulous attention to details. Built-in 2500mAh battery, up to 6 hours of battery life. It offers versatile connectivity through the 3.5mm & 6.35mm headphone jacks (32-300 ohms), serving as both a portable and desktop headphone amplifier.
What You'll Get: Fosi Audio SK01 Headphone Amp x1, User Manual x1, 2-in-1 USB Type-A/C to Type-C Cable x1, a 24-month worry-free warranty and responsive customer service.

Turntable Record Player with Built-in Speakers, Vinyl Record Player Support Bluetooth Playback Auto Stop 33&45 RPM Speed RCA Line Out AUX in All-in-one Belt-Drive Turntable for Vinyl Records Green
[All-in-one Turntable] Built-in stereo speakers, wireless playback, Aux-in, RCA output, 33&45 speed and auto-stop, which is an ALL-in-ONE machine. It is equipped with four speakers, including two high-pitched speakers and two low-pitched speakers. The turntable provides high-fidelity and powerful stereo performance and put you in a wonderful musical atmosphere.
[Vintage and Exquisite Design] Made of high-quality wood with a very atmospheric and vintage look. Not only is it a turntable, but it’s also a home decoration that shows a personal taste in home decoration, which can be a living room/bedroom/study decoration. Besides, it can be used as a beautiful gift for all ages.
[Complete and Premium Accessories] Adjustable counterweight and aluminum platter ensure that turntable remains in a balanced position. AT-3600 stylus and ‘S’ shape tonearm enable the arm to have better tracking performance and moment of force relationship and can reproduce more delicate sound quality. High-quality accessories allow record player to have better sound quality and a longer lifespan.
[Multiple Playback Options for You] The turntable has 33 and 45 RPM to play records directly. At the same time, you can switch to PH to connect passive speakers and switch to LINE OUT to connect active speakers. In addition, you can also connect turntable to your cell phone and other devices to play any song you want to listen to(remember to adjust the device volume and record player volume at the same time).
[Easy to Use] It combines turntable, preamp and speakers, even novices can learn to use it quickly. If you have any questions about our turntable, please feel free to contact our tech support.

Pro-Ject Audio - Phono Box DC - MM/MC Phono preamp with line output (Black)
Compact phono preamplifier
Adjusts for MM or MC cartridge via switch on rear panel
Small size allows installation close to record player
Ultra-low impedance output stage

U-Turn Audio – Pluto 2 Phono Preamp (Natural Aluminum)
Low-noise phono preamp for all MM (moving magnet) cartridges.
Designed and assembled in Woburn, MA. Comes with a 3-year warranty and lifetime product support from U-Turn Audio.
Combines elegant circuit design and high-quality components like WIMA film capacitors and precision resistors for remarkably clear and accurate amplification.
Active subsonic filter removes low-frequency noise. Dual high-performance gain stages for low THD (distortion).
Compact aluminum enclosure shields sensitive electronic components from interference.

Supermicro SYS-E301-9D-8CN8TP Xeon D-2146NT 8 Core Mini Server, 4X GbE LAN, 2X 10GBase-T, 2X 10G SFP+, IPMI (32GB ECC RDIMM, 1TB NVMe M.2)
Intel Xeon D-2146NT 8-Core Processor, Configured with ECC RDIMM Memory and NVMe M.2 Drive
Supports up to 512GB DDR4 ECC LRDIMM, Supports 4 x 2.5" SATA Drive Bays or 2x U.2 drives
PCI-E 3.0 x8 Low Profile Slot, 1 x M.2 2242 slot (PCI-E 3.0 x2, SATA, B Key)
Quad GbE LAN, 2 x 10GBase-T, 2 x 10G SFP+, and IPMI
Compact 1.5U Form Factor: 10" x 2.6" x 8.9"

Topping E50 MQA Full DAC ES9068AS XU216 32Bit/768kHz DSD512 PCM768kHz Decoder RCA TRS Ultra Low Noise Preamp (Silver)
ES9068AS DAC Chip--- E50 uses the latest high-performance DAC chip ES9068AS. Our excellence in design and engineering provides realistic and transparent sound quality.
The sound quality is good enough for all kinds of applications--- With the help of careful design and adjustment, E50 provides a distortion as low as 0.00009% and a dynamic range of 126dB, providing you with perfect sound quality. This also makes E50 suitable for applications: high-fidelity PC-HIFI system, mobile phone/tablet OTG, CD player/turntable external DAC, digital broadcasting external DAC, TV DAC, and so on.
Ultra-low jitter for USB inputs, jitter is no longer anxious--- Using CPLD to process the clock and greatly optimize the digital signal, achieved incredible jitter suppression capabilities. The use of new technology makes the femtosecond crystal and external clock no longer needed to suppress jitter.
5V power supply, anytime and anywhere--- E50 uses a DC5V power supply, which can be easily accessed almost everywhere. You can power it up by USB port of PC, mobile phone charger or even a power bank. Note: The product does not provide a 5V power adapter.
All inputs support Auto On/Off function--- E50 auto On/Off function, it will automatically turn on and set to the input which the signal is valid. And when the signal of E50's selection is not valid for 1 minute, E50 will turn off automatically.

Fluance RT81+ Elite High Fidelity Vinyl Turntable Record Player, Audio Technica VM95E Cartridge, Anti-Resonant Platter, Acrylic Mat, Phono Preamp, Wood Plinth, Adjustable Isolation Feet - Piano White
PURE ANALOG LISTENING EXPERIENCE - Premium components allow this high-fidelity belt driven turntable to recreate the performance the way the artist intended
SUPERIOR VIBRATION ISOLATION - Three adjustable isolation feet, an acrylic mat with similar resonant frequency to vinyl, and a dampened aluminum anti-resonant platter, resulting in improved frequency response, enhanced imaging, and greater signal clarity
HIGH PERFORMANCE CARTRIDGE -The next generation Audio Technica VM95E, featuring a diamond elliptical stylus, VM series upgradability, and greater frequency response, is mounted on a removable head shell for easier cartridge swapping
HIGH MASS ENGINEERED PLINTH - The gorgeously finished cabinet is crafted from solid engineered (MDF) wood which results in superior isolation from unwanted vibrations
CAPTIVATING SIGNAL CLARITY - Featuring a built-in Texas Instruments phono preamp, gold-plated RCA connections, and a ground terminal that deliver warm, and true sound

Supermicro SYS-E301-9D-8CN8TP Xeon D-2146NT 8 Core Mini Server, 4X GbE LAN, 2X 10GBase-T, 2X 10G SFP+, IPMI (64GB ECC RDIMM, 1TB NVMe M.2)
Intel Xeon D-2146NT 8-Core Processor, Configured with ECC RDIMM Memory and NVMe M.2 Drive
Supports up to 512GB DDR4 ECC LRDIMM, Supports 4 x 2.5" SATA Drive Bays or 2x U.2 drives
PCI-E 3.0 x8 Low Profile Slot, 1 x M.2 2242 slot (PCI-E 3.0 x2, SATA, B Key)
Quad GbE LAN, 2 x 10GBase-T, 2 x 10G SFP+, and IPMI
Compact 1.5U Form Factor: 10" x 2.6" x 8.9"

Fluance RT84 Reference High Fidelity Vinyl Turntable Record Player with Ortofon 2M Blue Cartridge, Speed Control Motor, High Mass MDF Wood Plinth, Vibration Isolation Feet - Piano Black
PURE ANALOG PERFORMANCE - The definitive vinyl record listening experience for beautifully warm and natural music, transporting you into the center of the performance
SPECTACULAR MUSICAL ACCURACY - Immerse yourself in the detailed high resolution sound of the Ortofon 2M Blue elliptical cartridge delivering improved linearity, higher channel separation and reduced distortion
SPEED CONTROL FOR PRECISION PLAYBACK - The isolated motor prevents unwanted vibrations and noise while the speed control mechanism ensures consistent platter velocity (0.07% Wow/Flutter)
High Mass MDF Wood Plinth - Revel in the gorgeously crafted cabinet with real wood finish and a highly precise metal platter with adjustable resonance damping feet, ensuring superior isolation from unwanted micro-vibrations (Note: phono preamp not included)
SPECTACULAR SIGNAL CLARITY - Caress your records with the balanced S-shaped tonearm for accurate tracking of the record groove and no electronics in the signal path for a cleaner, exceptionally detailed sound

Fluance RT85 Turntable with Ortofon Cartridge, Acrylic Platter, Speed Control, and Vibration Isolation - Walnut
PURE ANALOG PERFORMANCE - The definitive vinyl record listening experience for beautifully warm and natural music, transporting you into the center of the performance
SPECTACULAR MUSICAL ACCURACY - Immerse yourself in the detailed high resolution sound of the Ortofon 2M Blue elliptical cartridge delivering improved linearity, higher channel separation and reduced distortion
HIGH DENSITY ACRYLIC PLATTER - The greater mass of the acrylic platter damps unwanted vibrations resulting in a more 3-dimensional sound with tighter bass, a fuller midrange, and overall improved clarity
SPEED CONTROL FOR PRECISION PLAYBACK - The isolated motor prevents unwanted vibrations and noise while the speed control mechanism ensures consistent platter velocity (0.07% Wow/Flutter)
High Mass MDF Wood Plinth - Revel in the gorgeously crafted cabinet with real wood finish and a highly precise metal platter with adjustable resonance damping feet, ensuring superior isolation from unwanted micro-vibrations (Note: phono preamp not included)