Item TitleSingxer SA-1 Headphone AmplifierDescriptionThank you for your interest.The simple operation has been verified.There are scratches but no functional problems.All accessories are shown in the photo.Please note that we may not be able to answer technical questions. Payment Supports managed payments Please pay within 5 days after auction is finished. About Us We are located in Japan. Its our pleasure to make you happy by proposing our recommend item. If you have any questions or request about items please feel free to ask us. International Buyers - Please Note: -Import duties taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. -Please check with your countrys customs office to determine what these additional costs will be prior to bidding/buying. -These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges. -We do not mark merchandise values below value or mark items as - gifts - The US and International government regulations prohibit such behavior. Thank you for your understanding.

Singxer SA-1 Fully Balanced Fully Discrete Class A Amp XLR 6.35 Single-Ended 4.4 Balanced Pre-Amp Amplifier Like-new. Includes original box.

Fully working Sinxer SA-1 headphone amplifier. Didnt produce a discernable difference to my other headphone amp so I dont need both.

I have had this posted for a little while now. Feel free to message an offer. This item is in mint condition, with an upgraded volume knob. No defects. Great sounding. The listed price is reasonable and a value! IF YOURE INTERSTED, MESSAGE ME IF ITS BELOW MY DESIRED AMOUNT. I may accommodate or at least negotiate. Thanks! Singxer SA-1 Headphone amp V1 Used, but in Mint condition. No defects or scratches. Item comes in the original box with power cable and handbook. Installed is an an aftermarket knob from Amazon. I saw someone on Head-fi with this knob, and it looks and fits great. It has more texture on the ring, and the white volume marker makes it more visible in low light to see where your volume is at.($10 value.mxuteuk Black Guitar Knob Aluminum Alloy Potentiometer Control Knob Volume Audio Electric Guitar Bass Knob Screw Type 34 x 17mm (d*h) KNOB-06-34BK) ***The factory volume knob is installed for shipping due to the stock packaging. Custom knob will be on the side as well as hex keys for both if you want to swap them. The unit has worked very well for me, and sounds great! Im only selling it because i found an amp i like slightly more and no longer need this one. It has great connectivity and power. It works well with iems as well. A versatile amp. Side note. This amp has NOT had the jumper mod done to it. It is stock. I show a bottom of the unit photo to show the void warranty sticker is intact. Nothing has been tampered with. Description: Introducing the Singxer SA-1 Fully Balanced Class A Headphone Preamp Amplifier, a top-of-the-line audio equipment that promises exceptional sound quality. With two inputs, balanced XLR/RCA audio inputs, and compatibility with XLR 4.4mm and 6.35mm headphone jacks, this amplifier is perfect for amplifying your audio experience. Designed in China, this sleek and elegant black amplifier boasts an amplifier class A and is perfect for use in the home audio setup. Whether youre a music lover or a professional in the audio industry, the Singxer SA-1 will deliver the quality sound you need. Features: 1.Ultra-low distortion: THD+N -120db @1khz A weighting 20-22khz, When outputting 50mv at low gain, THD+N still has -96db @1khz A weighting 20-22khz. 2.Ultra-low noise: At low gain, the bottom noise is 300nv RMS A weighted 20-22khz, the direct test value of AP2522 is 0.66uv, At maximum output, SNR and DNR are 147db. 3.SA-1 adopts a true four-way fully independent fully discrete Class A amplifier circuit design, pure analog amplifier circuit and pure analog control, without EMI interference caused by digital control, in order to faithfully restore the analog flavor of music. 4.The amplifier circuit adopts the class AB architecture developed by ourselves. The differential input transistor adopts ROHMs ultra-low noise audio dedicated transistor. The transistors are purchased in large quantities and then selected by manual precision matching to ensure the consistency of the differential transistor. For other transistor, we use SMD twin transistor with excellent consistency to ensure better performance. 5.The final output circuit uses multi-stage current amplification, similar to the architecture of a high-power amplifier. Each channel uses 2 pairs of ON Semiconductors 4A mid-power transistor to output in parallel to ensure low enough internal resistance and strong driving force; it can be done calmly even in large dynamics. 6.Perfect protection functions: overcurrent, overload, overheating, short circuit, DC protection, start-up delay, and the output relay can be cut off immediately when shutting down. Multi-function and multiple play methods: 1. Support single-ended balanced input, free switching. 2. Support multi-output interface, XLR 4-pin true balanced, 6.35 single-ended, 4.4 balanced interface; also supports single-ended and balanced output as a front-end mode. 3. Support high and low gain design, you can easily connect all kinds of earplugs, super sensitive earplugs, etc. 4.When the gain is high, you can push a variety of big headphones, including a variety of high-resistance moving coils, low-resistance flat panels, and even ultra-low sensitivity headphones such as KK Earphone. 5.Support high and low impedance output, suitable for high-impedance headphones when high-impedance, and low-impedance headphones that require high current. 6.Large balanced output power: 16 10000mW 32 5500mW 68 3100mW 120 2000mW 600 380mW Volume: 234MM*170MM*46MM weighT :1.8KG

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.

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.

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

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.

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.

Singxer SA-1 Class A Balanced Headphone Amplifier + SMSL VMV D1SE DAC. This is a stack of the Singxer SA-1 headphone amplifier and the SMSL VMV D1SE DAC. It will come with the amplifier and the Dac, two balanced xlr cables for connectivity, two Monosaudio HIFI 12AWG audiophile power chords, and a usb cable. It will NOT ship in the original box, however it will be packaged with ample protection. All modules, parts, and accessories work perfectly. Contact me with questions. Send offers.