Rarely used almost mint condition Singer SA-1 Headphone Amp.I am using tubes amp. now so this Singer SA-1 has to go to a new home for someone else to enjoy its clean clear sound.Everything works and no issue with it.I dont see any real visible scratch anywhere unless under spotlight.Sorry, no overseas sale. Shipping to Alaska or Hawaii will be higher.Please ask if you have any questions.Payment is due by 3 days after auction close.Thanks.

Includes Interface in aluminum case and a USB A to B cable. I had this between PC and DAC and worked very good to convert USB to Coax Spdif, I since changed my system and I am no longer in need of this. Free shipping, US only. The Singxer F-1 USB Digital Interface is a top-notch device designed to enhance your home audio system. It allows for high-quality digital audio to be transmitted from your computer to your amplifier, providing crystal-clear sound for your favorite music, movies, and games. This USB digital interface is a must-have for audiophiles who demand the best possible audio quality. It is compatible with a wide range of devices and software, making it easy to integrate into your existing setup. With the Singxer F-1 USB Digital Interface, you can enjoy your favorite media with unparalleled clarity and fidelity. Output interface supports PCM 44.1 kHz,48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHzI2S out supports full sample rateS/PDIF supports up to 192 kHzOutput interface DSD: 2.8 MHz (DSD64) DoP, native; 5.6 MHz (DSD128) DoP, native; 11.2 MHz (DSD256) nativeI2S out supports all DSD formatS/PDIF and AES/EBU support DSD64 DOP modeBits wide: The highest 32 bit over I2S output; the highest 24 bit over S/PDIFScrew position, I2S is compatible with Amanero board3 active crystal oscillators (CRYSTEK CCHD audio crystal oscillator)1 x USB input socket is standard USB-B type female; USB power supply range: 4.5V–5.1V 2 x RCA connector outputs standard S/PDIF; electricity level 550 mV (standard connection load), output impedance 75 ohmsSystem compatibility: Windows 7 and 8, 32/64 bit, install driver; Native Mac OS 10.6 and later, use own driver; native Linux with UAC2-compliant kernel, use own driver; Android OS 4.2 and above, requires support for OTG function

Moderately used, never applied jumper mod on it. Does not come with the original box, just the unit and the power cord.

Singxer SA-1 Fully Balanced Amplifier condition is brand new. Condition is open box. Shipping in 48 hours(Monday through Friday) All accessories included. DOA return will be allowed with in 30 days.

Hello Happy Ebayers. Once again its time to get rid of some of my audio gear, it keeps pilling up. I love audio gear, I am a true audiophile. So my lost is your gain. GREAT AMP, VERY POWERFUL, CAN POWER MY SUSVARAS. USEDFAST FREE SHIPPING CHECK OUT THE PICTURES SHIPS IN OVER SIZED BOX, WITH BUBBLE WRAP.

Includes:Singxer SA-1 Class A Amplifier2 RCA Dust CapsPower cordAll original Packaging Materials

POWER CABLE INCLUDED.

Up for auction is one of my Singxer Su-1 USB interfaces. I no longer need one of them so here it is (still using my other one as they are great). In decent overall condition (please see images), some light scratches on top. This normally retails for well over $300 new (I believe $349 or $399). Here is a chance to get a tested and working unit in nice condition for much less. Shipping will be with Fedex Express Saver and double boxed (well protected). Does not come with any original retailbox or a power cable, but any typical power cable will work (has the socket, see back). If you need a nice power cable, I have some Pangea power cables also going up for auction on ebay soon (3 of them, but they are short). If bidding reaches $130+, or if someone chooses buy it now,I will however throw in a bonus nice USB cable (Oyaide NEO d+, green color, 3 foot length) Specifications:Each output interface supports sampling rates:PCM: 44.1KHz, 48KHz, 88.2KHz, 96KHz,176.4KHz, 192KHz, 352.8KHz, 384KHz(I2S support all sampling rate,S/PDIF support upper to 192KHzDSD: 2.8 MHz (DSD64)-DoP, native5.6 MHz (DSD128)-DoP, native11.2 MHz (DSD256)-native(I2S output support all DSD,S/PDIF,AES/EBU support DSD64 DOP mode)Bits width:the highest 32 bit over I2S outputThe highest 24 bit over S/PDIF Design Details: ....high-performance,low noise and fast response of the LDO as the main power source.The entire board using a multi-way independent of the LDO power supply,wherein the clock even partially adopted ADIs ultra low noise LDO,in order to ensure the ultimate output performance.2.PCB motherboard with 4-layer circuit board design,make sure you have a complete ground plane and power planes, high-speed digital design methods to ensure signal integrity and power integrity of the entire board.The clock signal special treatment, the use of package design and precise impedance control,thereby ensuring the signal quality and increase the clock anti-jamming capability.Input and output signals are to follow standard design,especially USB high speed signals using a 90 ohm differential impedance control.System compatibility:1:Windows XP,Windows 7,Windows 8,Windows 10;32/64 bit,need install driver2:Native MacOS 10.6 and later,use own driver3:Native Linux with UAC2 compliant kernel,use own driver4:Android OS 4.2 and above,need support OTG functionI2S port use HDMI socket output:1.Electrical level is 3.3V LVDS differential signa.2.DSD ON singnal,5Vpower supply,CPLD has processed the MUTE signal,so do not need to process it again.3.DSD ON signal can be user-defined,DSD ON signal can be connected to PIN 13,14,15,16 on the socket.4.You can adjust the phase of PIN 1-3 and PIN 7-9 with a switch. Flexible HDMI-I2S output configuration:Switch 1-4 is for PIN13-16 on the HDMI socket.When you turn it into ON,it means that HDMI PIN has DSD_ON function.Switch 5 is clock output mode,OFF is MCLK,ON is WCK.Switch 6 is for HDMI PIN1-3 and PIN 7-9 phase,ON is positive phase,OFF is negative phase.(ON is for Gustard DAC,OFF is for PS audio)If it is Gustard DAC,please turn Switch 3 and 6 into ON,others are OFF.Switch 7 and 8 are standby.

Hi everyone, You are looking at the SINGXER SU-6 AUDIOPHILE USB BRIDGE DDC INTERFACE GALVANIC ISOLATION SUPERCAPACITOR I2S TOSLINK COAX In very good working condition. 1 input: USB type A.8 outputs: MCLK/WCK BNC, 2x I2S HDMI type, optical TosLink, I2S RJ45 type, coaxial RCA, AES/EBU XLR, coaxial BNC. It comes with:the original box,the original Mean Well swith mode power supply 100-240V,a USB type B cable. Item will be dispatched after payment clears, usually 2-3 working days.Free Royal Mail Special Next Business Day delivery, sent via Parcelforce 24 hour delivery if over 2KG.No collection possible, I also update the tracking details after dispatch.Please check out my other items I may have for sale, thanks for looking : )Genuine buyers only otherwise you will be reported to the authorities. I will make a note of the serial number for security purposes. SINGXER SU6 USB Interface Product introduction:The SU-6 digital interface is a new generation of high-performance USB digital audio interface. It uses XMOS latest xCORE-200 series and Xilinxs high-performance large-scale PGA chip. The SU-6 is a digital interface using a thermostat-level clock system. Crysteks two CCHD-957 femtosecond crystal oscillators provide a solid foundation for the superior audio signal quality of the SU-6 output. The SU-6 digital interface uses a standard USB2.0 input interface, while the SU-6 has a rich output interface, including S/PDI for fiber/coaxial RCA and BNC outputs, AES/EBU for XLR balanced output, RJ45 and HDMI interfaces. Output I2S (including DSD ON signal), clock output supports MCLK main clock and WCLK word clock. The power system design was optimized and the audio section was powered by a 7.5F (7.5 million uf) supercapacitor. SU-6 is newly developed USB interface, which is positioned at the high-end interface. Compared with previous products, we mainly use the following four new self-developed technologies: 1, built-in CPLD pre-shaping technology, FPGA-based source synchronization technology re-shaping the isolated I2S signal, thus eliminating the additive jitter caused by the isolation chip. 2, the newly designed FPGA algorithm, built-in FIFO buffers the data and then outputs, SPDIF output is re-encoded by FPGA, so that the coaxial output can support PCM 384K and DSD DOP128 at the highest. 3, using CRYSTEKs CCHD-957 high-performance femtosecond crystal oscillator, with the self-developed constant temperature system and ultra-low noise super capacitor power supply system, further improve the short-stability performance of the clock. 4. Original single clock system, all circuits of the whole machine adopt synchronous clock design, in which USB clock is synthesized by PLL derived from femtosecond clock. Technical indicators:Sample rate supported by each output interface:PCM: 44.1KHz, 48KHz, 88.2KHz, 96KHz,176.4KHz, 192KHz, 352.8KHz, 384KHz DSD: 2.8 MHz (DSD64) - DoP, native 5.6 MHz (DSD128) - DoP, native 11.2 MHz (DSD256) - DoP, native 22.5 MHz (DSD512) - native Bit width: up to 32 bit over I2S outputUp to 24 bit over S/PDI, AES/EBU Electrical standards for each interface:1, USB input socket is a standard USB-B type female socket, USB power supply range is 4.5V-5.1V;2, DC POWER input socket uses DC2.1 socket, supports 7.5V-9V DC input (for fast charging of super capacitor, power supply requirement is 3A).3, BNC interface and RCA interface output standard S / PDI signal, the level is 550mV (connected to standard load), the output impedance is 75 ohms;4, XLR interface output standard AES / EBU signal, the level is 3.3V (connected to standard load), the output impedance is 110 ohms;5, the word clock (WCLK) output uses BNC interface, the level is TTL (no load), the output impedance is 75 ohms;The 6, 2 HDMI-I2S signals are output through the HDMI socket. The output four signals include MCLK, BCLK, LRCLK, and SDATA signals. The standard LVDS differential level is used, and the impedance is controlled at 100 ohms. The PIN13-15 of the HDMI socket is the DSD_ON signal, the high level is the I2S working in the DSD mode, the level is LVTTL; the PIN18 is the 5V weak power output (the output current is less than 20ma), which can be used as the interface plug-in indication; 2 output The I2S line sequence is the same.7, RJ45-I2S output I2S signal is CMOS (5V) single-ended signal, low-impedance output, the output of four signals including MCLK, BCLK, LRCLK, SDATA signal.8, the optical fiber port outputs the standard optical signal. Design details:1. Implement the design concept of electric power as the mother of sound, pay attention to the design of power circuit, adopt external DC input, built-in super capacitor power supply, with high performance, low noise and fast response LDO. The whole board is powered by up to 6 independent LDOs. The digital audio board is powered by a secondary LDO. The clock part even uses LTs ultra-low noise LDO, which lays a solid foundation for ensuring the ultimate performance of the output.2, in order to ensure excellent electrical transmission performance, XLR sockets are made of Swiss Neutrik products, USB-B sockets are made of TE, and enthusiast BNC and RCA coaxial sockets are made for Taiwanese manufacturers. Even the fuses are selected from the United States. Litteluse model.3. The audio board is designed with a 4-layer board to ensure a complete ground plane and power plane. High-speed digital design is used to ensure signal integrity and power integrity of the board. Special processing of the clock signal, using packet design and accurate impedance control, to ensure the signal quality of the clock and improve its anti-interference ability.4, input and output signals are in accordance with the standard design, especially the USB high-speed signal uses 90 ohm impedance control, also built-in anti-static TVS protection circuit; I2S signal uses LVDS differential level standard, impedance control is 100 ohms, 4 outputs are used A separate LVDS driver. System compatibility:1, Windows 7, Windows 8, Windows 10; 32/64 bit, need to install a dedicated driver2, Native MacOS 10.6 and later, using the system comes with a driver3, Native Linux with UAC2 compliant kernel, using the systems own driver, (tested on Ubuntu and Daphile systems, based on INTEL X86 platform)4, Android OS 4.2 and above, the device needs to support OTG function, in general, the Android 5.0 system is supported by default, and the following 5.0 recommendations are used with a dedicated player. HDMI -I2S interface output:1. LVDS differential signal with a level of 3.3V;2.DSD ON signal, 5V power supply (small current), the internal PGA of the MUTE signal has been processed, and the MUTE signal will not need to be output;3. The DSD ON signal can be defined by itself. The DSD ON signal can be arbitrarily output to the PIN13, 14, 15, and 16 pins of the socket.4. The phase of PIN1-3 and PIN7-9 is adjustable, and the user can configure the phase of the two pairs of outputs through one switch. Flexible I2S and clock configuration:1. Switch 1-4 corresponds to the PIN13-16 pin of the HDMI socket. When it is pulled to the ON position, it means that the PIN pin has the output function of the DSD_ON signal;2. Switches 5 and 6 are modes for configuring the clock output:When the switch 5 is at O, the clock outputs MCLK, and when it is ON, the clock outputs WCK;Switch 6 configures the frequency of MCLK, which is 22.5792M/24.576M for O and 45.1584M/49.152M for ON.The configuration of switch 6 is valid for CLK OUT, RJ45-I2S, and HDMI-I2S.3. The switch 7 can separately set the left and right channels in the DSD mode of the I2S signal.4. Switch 8 can set the line sequence of BCLK in I2S signal; when O, PIN4 is BCLK+, PIN6 is BCLK-;5. Switch 9 can set the line sequence of LRCLK in I2S signal; when O, PIN7 is LRCLK+, PIN9 is LRCLK-;6. Switch 10 can set the line sequence of DATA in I2S signal; when O, PIN1 is DATA+, PIN3 is DATA-;Note: Coaxial, optical fiber, AES/EBU output is not affected by the above code switch; RJ45-I2S wire sequence is fixed, need to adapt to different interfaces, you need to customize the network cable. Chassis size and packaging:The length and width of the chassis: 238MM*170MM*46MM, excluding the height of the feet and the protruding part of the connector behind the chassis.The weight of a single machine is about 1.6KG.The length and width of the carton packaging: 350MM*230MM*110MM.Package weight: about 2.0KG Accessories: USB cable*1, power adapter (commonly used, AC100V-240V)*1, power cord*1

This is a great amp. Selling because I don’t use it. Bought it in 2022. My loss is your gain. Feel free to ask questions. An analog amp from a digital heavyweight Since 2011, Singxer has operated as an ODM and OEM in the audio industry as well as developed their own DACs and digital interfaces. Best known for their work in digital audio, they’ve made technical achievements in clock systems, phase-locked loop technologies, and more. In a bit of a departure for a company that so heavily favors digital products, Singxer has now released the SA-1, a fully balanced pure analog class A amplifier. Call it beginner’s luck or pure talent: Singxer has knocked this one out of the park. The SA-1 offers superb amplification, vanishingly low noise floor, and nominal distortion. It’s a great choice for anyone looking to graduate to a high-end balanced amplifier that can double as a preamp. Fully independent Class A analog amplifier The Singxer SA-1 is a class A pure analog amplifier. Using simple circuits that draw the same amount of current and consume the same amount of energy whether receiving a signal or not, this is the most straightforward of amplifier types. It isn’t subject to electromagnetic interference caused by digital components, so its total harmonic distortion and signal-to-noise ratio are exceptionally low. Seven inputs and outputs The Singxer SA-1 can be used as a headphone amplifier or preamplifier. As a headphone amplifier, it supports balanced XLR input, RCA input on the back panel, and three outputs on the front panel: 4-pin balanced XLR, balanced 4.4, and single-ended 6.35. As a preamplifier, it supports balanced XLR input, RCA input, and two outputs: balanced XLR and RCA. Product highlights Fully independent class A analog amp Super clean output with low distortion and low noise floor Seven inputs and outputs Fully balanced architecture Headphone amplifier and preamplifier Amplification type: Class A Two gain modes: low/ high Specs Inputs: Balanced XLR, RCA Outputs: Balanced XLR, RCA, Balanced 4.4mm, Balanced 4-pin XLR 4, Single-ended 6.35mm SNR: 126dB Dynamic range: 147dB @A-wt THD+N: 0.000078% @balanced input and no output load 0.000128% @balanced input and 33? output load Noise level: 0.66µV @ Max output, SNR / DNR 147dB 300nV RMS @ Low gain, A-Weighting, 20Hz-22kHz Output power 6480mW @ 32? 2000mW @ 120? 380mW @ 600? Power supply: 100-240V AC, 50/60Hz Dimensions: 9.2 x 6.6 x 1.8” (234 x 170 x 46mm) Housing material: Aluminum Color: Black Weight: 3.9lbs (1.8kg) What’s included 1x Singxer SA-1 1x Power cable

Gustard DAC X16 Black Sabre ESS9068AS LDAC Bluetooth 5.0 MQA Fully Balanced XLR. VERY GOOD CONDITION + SINGXER SU -1 DDC USB DIGITAL INTERFACE VERY GOOD CONDITION BOUGHT FROM NEW . ONLY 1 YEAR OLD AES LEAD INCLUDED (good quality - cost £40 to buy) All with original packaging & accessories NO OFFERS UK BIDDERS ONLY

Hier biete ich einen Singxer SA-1 High End-Kopfhörerverstärker in gebrauchtem Topzustand, in OVP und mit Zubehör, siehe Fotos. Das stylische Gerät hat genug Power, um so ziemlich jeden gängigen (auch High End-)Kopfhörer zuverlässig und kristallklar anzutreiben. Ich trenne mich lediglich von dem Verstärker, weil ich auf ein Modell aus einer mehrfach höheren Preisklasse umgestiegen bin und das Schätzchen hier nicht nutzlos herumstehen soll. Viel Spaß beim Bieten! :-) Privatauktion, keine Garantie, keine Gewährleistung, keine Rücknahme.

For sale is this preowned Singxer SA-1 Class A headphone amplifier tested and in excellent condition, with original box, instruction manual, US AC power cord. I am the original owner and have used the amplifier infrequently; I bought a better knob for the volume control that is slightly bigger and gives you finer control over the volume. Only the updated knob is included. Works fine, no issues. There are a couple of small scrapes on the top left of the case - please see all pictures. I will ship same or next day via USPS Parcel Select Ground. Thanks for looking! Heres a blurb giving details about the SA-1: For headphones in need of classic analog amplification with modern performance, the SA-1 balanced headphone amp from Singxer is a class-leading fit. Equipped with Singxer’s own custom, four-way fully discrete Class A amplifier circuit, the SA-1 is all analog—from the internals all the way to the controls. This pure analog design delivers warm and expressive amplification devoid of any EMI interference caused by digital components, making the SA-1 loud, and quiet, in all the right ways. With an impressive signal-to-noise ratio of 126 decibels, it won’t be sending your ears anything but pure signal. And with XLR and RCA inputs alongside a wide range of outputs—including 4-pin XLR, 4.4-millimeter balanced, and 6.35-millimeter single-ended options—it’s capable of handling preamp or headphone amp duties in virtually any setup. Other Notes: Call it beginner’s luck or pure talent: Singxer has knocked this one out of the park. The SA-1 offers superb amplification, vanishingly low noise floor, and nominal distortion. It’s a great choice for anyone looking to graduate to a high-end balanced amplifier that can double as a preamp.

Singxer SA-1 Fully Balanced Amplifier. Nearly perfect condition..barely used at all.

Singxer SA-1 Full Balanced Headphone Amp Ich verkaufe meinen Gebrauchten Singxer SA-1 Kopfhörerverstärker. Um ein besseren Sound zu erzielen wurde bei dem Gerät ein Jumper Mod vorgenommen.

Singxer SA-1 Class A Fully Balanced Headphone Amplifier RCA/XLR Input 4.4mm/6.35mm Headphone Output RCA/XLR Output HiFi Fully Discrete Headphone Amp Preamplifier Preowned with little usage. ?Class A Headphone Amplifier?SA-1 adopts a true four-way completely independent fully discrete Class A amplifier circuit design, pure analog amplifier circuit and pure analog control, without EMI interference caused by digital control, and faithfully restore music. Support free switching of single-ended/balanced input mode. ?High-Fidelity Desktop Headphone Amp?Singxer SA-1 is a true fully balanced headphone amplifier that supports XLR balanced headphone output, 4.4mm balanced headphone output, and 6.35mm single-ended headphone output. ?High and Low Gain Design?In-ear-monitor earphone and ultra-high sensitivity headphones can use low gain mode. Headphones, high-resistance hybrid earphones, low-resistance flat earphones or ultra-low sensitivity earphones can use the high gain mode. Switch freely as needed and enjoy the sound with powerful driving force and control force. ?Ultra Low Distortion and Noise?THD+N:-120@1kHz A-weighting(20-22khz).When the output is 50mv at low gain, THD+N still has -96db @1khz A-weighting (20-22khz). At low gain, the bottom noise is 300nv RMS A-weighted (20-22khz) (tested after amplification by LNA), and the direct test value of AP2522 is 0.66uv. At maximum output, both SNR and DNR are 147db. ?Perfect Protection Function?When overcurrent, overload, overheating, short circuit, the DC protection function is automatically turned on, and the boot delay is delayed. The output relay can be cut off immediately when shutting down.

Singxer SA-1 Class A Fully Balanced Headphone Amplifier RCA/XLR Input 4.4mm/6.35mm Headphone Output RCA/XLR Output HiFi Fully Discrete Headphone Amp Preamplifier Preowned with little usage. ?Class A Headphone Amplifier?SA-1 adopts a true four-way completely independent fully discrete Class A amplifier circuit design, pure analog amplifier circuit and pure analog control, without EMI interference caused by digital control, and faithfully restore music. Support free switching of single-ended/balanced input mode. ?High-Fidelity Desktop Headphone Amp?Singxer SA-1 is a true fully balanced headphone amplifier that supports XLR balanced headphone output, 4.4mm balanced headphone output, and 6.35mm single-ended headphone output. ?High and Low Gain Design?In-ear-monitor earphone and ultra-high sensitivity headphones can use low gain mode. Headphones, high-resistance hybrid earphones, low-resistance flat earphones or ultra-low sensitivity earphones can use the high gain mode. Switch freely as needed and enjoy the sound with powerful driving force and control force. ?Ultra Low Distortion and Noise?THD+N:-120@1kHz A-weighting(20-22khz).When the output is 50mv at low gain, THD+N still has -96db @1khz A-weighting (20-22khz). At low gain, the bottom noise is 300nv RMS A-weighted (20-22khz) (tested after amplification by LNA), and the direct test value of AP2522 is 0.66uv. At maximum output, both SNR and DNR are 147db. ?Perfect Protection Function?When overcurrent, overload, overheating, short circuit, the DC protection function is automatically turned on, and the boot delay is delayed. The output relay can be cut off immediately when shutting down.

No flaws, works perfectly, lightly used with balanced components and in high gain. Dusted regularly, including internals with pressure can. Comes with original box, non smoking home. Singxer SA-1 Fully Balanced Class A Headphone Preamp Amplifier XLR 4.4mm 6.35mm.

Singxer SA-1 Fully Balanced Amplifier. Nearly perfect condition..barely used at all.

Singxer SU-6 USB Digital Interface XMOS XU208 CPLD Femtosecond Clock Interface. Box opened to check on contents but completely new and unused.

This is for a Singxer SU-1 Digital-To-Digital Converter that was from a secondary system that was rarely used and is still in fantastic condition, functions perfect. Will Ship in original packaging. Also includes power cord & USB Cable CONUS ONLY, Will Be shipped Via Fedex w/ signature confirmation, No P.O. Boxes.

For sale is this preowned Singxer SA-1 Class A headphone amplifier tested and in excellent condition, with original box, instruction manual, US AC power cord. I am the original owner and have used the amplifier infrequently; I bought a better knob for the volume control that is slightly bigger and gives you finer control over the volume. Only the updated knob is included. Works fine, no issues. There are a couple of small scrapes on the top left of the case - please see all pictures. I will ship same or next day via USPS Parcel Select Ground. Thanks for looking! Heres a blurb giving details about the SA-1: For headphones in need of classic analog amplification with modern performance, the SA-1 balanced headphone amp from Singxer is a class-leading fit. Equipped with Singxer’s own custom, four-way fully discrete Class A amplifier circuit, the SA-1 is all analog—from the internals all the way to the controls. This pure analog design delivers warm and expressive amplification devoid of any EMI interference caused by digital components, making the SA-1 loud, and quiet, in all the right ways. With an impressive signal-to-noise ratio of 126 decibels, it won’t be sending your ears anything but pure signal. And with XLR and RCA inputs alongside a wide range of outputs—including 4-pin XLR, 4.4-millimeter balanced, and 6.35-millimeter single-ended options—it’s capable of handling preamp or headphone amp duties in virtually any setup. Other Notes: Call it beginner’s luck or pure talent: Singxer has knocked this one out of the park. The SA-1 offers superb amplification, vanishingly low noise floor, and nominal distortion. It’s a great choice for anyone looking to graduate to a high-end balanced amplifier that can double as a preamp.

Item is in near brand new condition. Only two nearly unnoticeable imperfections on the top/front (see picture). The item is in perfect working order. It has not been tampered with in any way. Item will come with original power cable, a 2-meter AUX cable, and a UK plug adapter free of charge. The item will come very securely packaged with plenty of bubble wrap.

Selling my Singxer SA-1 Fully Balanced, Class A, Headphone amplifier / PreAmpJumper Mod installed so the full potential of the amplifier is released. The amplifier had a total usage of about 30 hours when I acquired it from an Open never used advert back in March 2023.Unfortunately, there has been an issue with how the original owner packed and posted the amplifier, that caused the dents and marks visible from the pictures during transport, at least based on what the original seller told me. I tested and inspected the amplifier: together with a friend of mine, we took some measures using a professional Multimeter analyzer, and also check distortion etc with an Audio Precision APx555 audio analyzer. All is working OK, with no internal damage, and the amplifier sounds and performs amazingly. For collection in person or alternative payment methods, the same item is listed on different online advertisement platforms. Sold as shown. Any questions/offers please ask.