--- product_id: 41479977 title: "SMSL SAP-9 Full Balanced Headphone Amplifier RCA XLR Input Black" brand: "s.m.s.l" price: "75 som" currency: KGS in_stock: false reviews_count: 7 url: https://www.desertcart.kg/products/41479977-smsl-sap-9-full-balanced-headphone-amplifier-rca-xlr-input store_origin: KG region: Kyrgyzstan --- # TPA6120A2 amplification Supports RCA & 6.35mm inputs Full balanced output SMSL SAP-9 Full Balanced Headphone Amplifier RCA XLR Input Black **Brand:** s.m.s.l **Price:** 75 som **Availability:** ❌ Out of Stock ## Summary > 🎶 Elevate Your Listening Experience! ## Quick Answers - **What is this?** SMSL SAP-9 Full Balanced Headphone Amplifier RCA XLR Input Black by s.m.s.l - **How much does it cost?** 75 som with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/41479977-smsl-sap-9-full-balanced-headphone-amplifier-rca-xlr-input) ## Best For - s.m.s.l enthusiasts ## Why This Product - Trusted s.m.s.l brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Audiophile Approved:** Tested by end-users with high-end headphones like K3003 for a pure sound experience. - • **Portable Power Options:** Power up with ease using a 5V/2A battery bank or the included power supply for on-the-go listening. - • **Versatile Connectivity:** Seamlessly connect with balanced headphones, RCA, and 6.35mm jacks for ultimate flexibility. - • **Unmatched Sound Clarity:** Experience a noise-free audio environment with advanced common mode inductor filtering. - • **Precision Volume Control:** Enjoy perfectly balanced audio with independent left and right channel control, even at low volumes. ## Overview The SMSL SAP-9 Full Balanced Headphone Amplifier is designed for audiophiles seeking superior sound quality. With its full balanced output, versatile input options, and noise-purifying technology, it delivers an unparalleled audio experience. The amplifier features independent volume control for each channel and can be powered by a battery bank, making it perfect for both home and portable use. ## Description SAP-9 is a headphone amplifier which support balanced headphone and also RCA and 6.35 mm headphone jack input.Balanced and single-ended headphone both workable with sap-9. In addtion sap-9 was featured with 2.5mm four pole balanced interface. Specification: Model: SAP-9 Category: Fully Balanced Headphone Amplifier Input interface: RCA / XLR Output interface: four core XLR jack/ 6.35mm headphone jack / 2.5mm four-pole balanced headphone port Unbalanced output amp power (measured at THD + N = 0.1%): 32 ohm: 175 mW 64ohm: 130mW 150 ohm: 78mW 300 ohm: 45 mW Balanced Output Amp Power (measured at THD + N = 0.1%): 32ohm: 373mW 64ohm: 342mW 150 ohm: 245 mW 300 ohm: 155 mW Power consumption: 7.2W Main body weight: 443g Note: The balanced output port and the unbalanced output port can not be used at the same time! Packaging included 1 x SMSL SAP-9 Headphones Amiplifier 1 x 5V Power Adapter 1 x USB to DC line 1 x User Mannual ## Features - SAP-9 is a headphone amplifier which support balanced headphone and also RCA and 6.35 mm headphone jack input - It supports full balanced output.Designed by totally independent balanced circuit.There is an IC called TPA6120A2 in each channel as amplification circuit,that makes sound field wider and high separation - NO Noise: SAP-9 uses common mode inductor filter in power part, it purify noise. Audiophile end-user tested it with K3003, sound background is very pure and no any noise - Electrical volume control:left and right channel totally balanced. No need to worry about discord problem, even under a very low volume - Convenient power supply:It also can connect with 5V/2A battery bank to power SAP-9 beside package power supply ## Images ![SMSL SAP-9 Full Balanced Headphone Amplifier RCA XLR Input Black - Image 1](https://m.media-amazon.com/images/I/51SdlLzYtAL.jpg) ![SMSL SAP-9 Full Balanced Headphone Amplifier RCA XLR Input Black - Image 2](https://m.media-amazon.com/images/I/51BiDBgEKqL.jpg) ![SMSL SAP-9 Full Balanced Headphone Amplifier RCA XLR Input Black - Image 3](https://m.media-amazon.com/images/I/51uZu7Ai0kL.jpg) ![SMSL SAP-9 Full Balanced Headphone Amplifier RCA XLR Input Black - Image 4](https://m.media-amazon.com/images/I/51aJlRDvmoL.jpg) ![SMSL SAP-9 Full Balanced Headphone Amplifier RCA XLR Input Black - Image 5](https://m.media-amazon.com/images/I/51CRp5sIjHL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Best Value Balanced Headphone Amp *by K***R on Reviewed in the United States on June 16, 2017* All my testing was done with balanced output to balanced headphones (separate grounds, 4 wires, 2 to each ear cup). If your headphones aren't balanced, there's no need to get the SAP-9, and you should probably get the SAP-8 since it has more power.There's some snobbery involved when reviewing SMSL products I've seen, and I haven't found any of it to be true based on the SAP-8 or SAP-9. Both are super-clear headphone amps with enough power to push the demanding T50RP MK3 drivers to my satisfaction. Note, the SAP-9 just barely accomplishes this, as I can turn them to max without it hurting my ears, and some might want it louder. As promised in their broken English description, I detect absolutely no noise when cranked to the highest setting and absolutely no distortion, not that my hearing is the best tool for measuring either.Should you get the 8 or the 9? Unless your OCD requires you to go balanced (mine did) I'd say the SAP-8. I can't detect any sound quality difference, but that doesn't mean that it isn't there. There's a definite possibility that the SAP-9 (I'm running balanced headphones) sounds better, but both are good enough amps that I can't discern it. Definitely do NOT get the sap-9 if you don't want to run balanced, since its power will really be lackluster in that case.YES, you can take an unbalanced input and feed a balanced output, contrary to what others have said. You cannot feed a balanced and unbalanced output at the same time. You press the volume button to switch between balanced/unbalanced input. You can HOLD the volume button for a while to turn it on and off.The volume knob is digital. It spins freely left and right with no stops, and there are clicks for every adjustment. They are fine tuned enough for my needs. ### ⭐ 1.0 out of 5 stars defected item delivered *by S***E on Reviewed in the United States on February 23, 2018* they sent to me defected item. that is the reason why I give 1 star.actual sound wasnt bad.but 1/4" headphone jack didnt work with balanced intput.there is a reason why I say this is defected,because when fully volume up from this & input source volume hits crazy clipping,then hard pop sound came out from the 1/4" headphone out with balanced input.so actual sound came in, but couldn't get out of it well.and also from the z reviews, in youtube video, 1/4" also working with balanced inputat least, smsl need to check item before selling or shipping it.I don't want waste my time for repair or return...it needs 1~2weeks more. so I just give up this item.as I give up the warranty, I already open it to check inside. there is weird soldering point.small chips(maybe resist or something?) which is near around the volume potentimeter are ugly thick coated with solder paste.none of other parts did, only them of each channel's.what does it mean? it feels like item not a NEW. wrong repairing or refurbished?check my photo uploaded. check the red sqaure of right top of image.it seems to bright white dirt because I already peel off the covered solder paste slightly with tweezers and it reflect sunlightsbut initial state of that also weird. ### ⭐⭐ 2.0 out of 5 stars Missing parts and other issues *by R***K on Reviewed in the United States on February 9, 2018* Shipped without the power supply. Might have exchanged it, but then I noticed that the volume control has no zero stop or increments, so there's no way of knowing what volume you're at, and how can you find a best setting for different inputs? I'm sure it sounds great when it's configured and shipped properly, but I opted for the Schiit Magni 3, which has gotten rave reviews at CNET and other sites. Not balanced like the rest of my studio system, but if it really delivers well over a watt into 32 or 64 ohms I'll be a happy camper. Hope Amazon makes a deal with Schiit to sell their products, they're made in USA and look really good. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kg/products/41479977-smsl-sap-9-full-balanced-headphone-amplifier-rca-xlr-input](https://www.desertcart.kg/products/41479977-smsl-sap-9-full-balanced-headphone-amplifier-rca-xlr-input) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-04-29*