--- product_id: 37158569 title: "Mini Fully-Balanced/Single-Ended Passive Preamp; Hi-Fi Pre-Amplifier; XLR/RCA Volume Controller for Active Monitor Speakers (Black)" brand: "nobsound" price: "£67.39" currency: GBP in_stock: true category: "Nobsound" url: https://www.desertcart.co.uk/products/37158569-mini-fully-balanced-single-ended-passive-preamp-hi-fi-pre store_origin: GB region: United Kingdom --- # Switchable balanced/single-ended & input/output modes ALPS 09 quadruple fully-balanced potentiometer Pro-grade NEUTRIK XLR & RCA connectors Mini Fully-Balanced/Single-Ended Passive Preamp; Hi-Fi Pre-Amplifier; XLR/RCA Volume Controller for Active Monitor Speakers (Black) **Brand:** nobsound **Price:** £67.39 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your sound, not your clutter — pure control in a compact form. ## Quick Answers - **What is this?** Mini Fully-Balanced/Single-Ended Passive Preamp; Hi-Fi Pre-Amplifier; XLR/RCA Volume Controller for Active Monitor Speakers (Black) by nobsound - **How much does it cost?** £67.39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/37158569-mini-fully-balanced-single-ended-passive-preamp-hi-fi-pre) ## Best For - nobsound enthusiasts ## Why This Product - Trusted nobsound brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Sleek:** Minimal footprint with a clean black finish that complements any modern workspace or studio. - • **Audiophile-Approved:** Engineered for discerning listeners who demand pristine, unaltered audio fidelity. - • **Pure Passive Design:** No amplification, no coloration—preserve your active monitors’ authentic sound signature. - • **Versatile Connectivity:** Seamlessly switch between XLR and RCA inputs/outputs to fit any professional setup. - • **Precision Volume Control:** Experience ultra-smooth, distortion-free adjustments with the premium ALPS 09 potentiometer. ## Overview This Mini Fully-Balanced/Single-Ended Passive Preamp by Nobsound is a compact, high-end volume controller designed specifically for active monitor speakers. Featuring the premium ALPS 09 quadruple fully-balanced potentiometer and professional-grade NEUTRIK XLR and RCA connectors, it offers switchable balanced/single-ended modes and input/output configurations. Its passive design ensures zero signal coloration, preserving the original timbre of your audio. With a sleek black metal enclosure and minimal footprint, it’s the perfect addition for audiophiles and professionals seeking precise, uncolored volume control without added amplification. ## Description The Best Choice for Active SpeakersMore and more audiophiles find that the behavior of normal multimedia speakers cannot meet their demands, and then they choose professional active monitor speakers. However, this kind of speakers usually doesn't have a volume controller, which means a pre-amplifier is needed.Active monitor speakers are mostly placed on the desk and used for near field listening. So they need to consider the area required for Hi-Fi pre-amplifiers (normally very big). What'more, different pre-amplifiers may differ in their timbres and this is the most bothersome issue.As an audiophile brand, Nobsound decided to solve this problem and designed this product. Its small size won't take much place and its clean silver color suits for various usage scenarios. There is no amplifying circuit in the device and won't change the timbre, while the amplifier in the active speaker is enough to drive it. With this product, you can enjoy the most original timbre and quality of the speakers and won't be trapped in the selection of pre-amplifiers. Specifications:Dimension: 148 x 48 x 80 (mm)Weight: 0.6 (Kg)Impedance: 50KΩInput: RCA / XLR (selection switch)Output: RCA / XLR (selection switch) Package:1 * pre-amplifier ## Features - This product uses the expensive ALPS 09 quadruple fully-balanced potentiometer, NEUTRIK XLR, Pro-Singnal RCA. Nobsound never be stingy in the components and materials of our products. - This prodcut has a small size, while is still euipped with commonly-used interfaces. There is a selection switch which you can choose the fully-balanced or single-ended audio signal mode, as well as the output or input mode. - This prodcut has no amplifying circuit and won't change the timbre. You can enjoy the most original sound of your active monitor speakers. - Its clean black appearance suits for almost every usage scenarios. - PLEASE NOTE: This is a PASSIVE PREAMPLIFIER. It has NO amplifying circuit. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MXC9HHW | | Best Sellers Rank | #89,843 in Electronics ( See Top 100 in Electronics ) #571 in Audio Component Amplifiers | | Brand | Nobsound | | Color | Black | | Compatible Devices | Active monitor speakers, possibly some musical instrument amplifiers | | Connector Type | rca,xlr | | Customer Reviews | 4.3 4.3 out of 5 stars (183) | | Enclosure Material | Metal Or High-Quality Plastic | | Item Dimensions D x W x H | 1.89"D x 5.83"W x 3.15"H | | Item Weight | 1.1 Pounds | | Manufacturer | Nobsound | | Mfr Part Number | 4330356338 | | Model Name | Mini Fully-Balanced/Single-Ended Passive Preamp | | Model Number | 4330356338 | | Output Channel Quantity | 2 | | Output Wattage | 1 Watts | | Power Source | Corded Electric | ## Product Details - **Brand:** Nobsound - **Color:** Black - **Compatible Devices:** Active monitor speakers, possibly some musical instrument amplifiers - **Material:** Metal Or High-Quality Plastic - **Output Wattage:** 1 Watts ## Images ![Mini Fully-Balanced/Single-Ended Passive Preamp; Hi-Fi Pre-Amplifier; XLR/RCA Volume Controller for Active Monitor Speakers (Black) - Image 1](https://m.media-amazon.com/images/I/615Y5WVy0+L.jpg) ## Questions & Answers **Q: Is the reason for this box to convert unbalanced rcas to a balanced xlr signal? it’s just for defeating possible unbalanced signal noise?** A: I think most people purchase this box for volume control. It has a high quality potentiometer for this purpose. It will convert an RCA input to a balanced, XLR, output. But it would probably be more cost effective, and space saving, to purchase RCA to XLR cables if that’s all you want to do. **Q: Does this preamp output +4dBu or -10dbV?** A: Hello. This is a fully passive preamp with no amplification function. **Q: Is the case (including front panel) made of metal?** A: Yes, all metal. It is a ver solid unit. **Q: Can i use this between an amp (Topping MX3) and powered speakers to protect the speakers amp?** A: No. It would make more sense to use the headphone output and find a splitter to connect it to your powered speakers. ## Frequently Bought Together - Nobsound Mini Fully-Balanced/Single-Ended Passive Preamp; Hi-Fi Pre-Amplifier; XLR/RCA Volume Controller for Active Monitor Speakers (Black) - Cable Matters 2-Pack Premium Short XLR to XLR Cables - 3ft, Male to Female Microphone Cable, Oxygen-Free Copper (OFC) Mic Cord, Black - VANDESAIL XLR Cables, 3ft 2 Pack Microphone Cable, XLR Male to Female Balanced Microphone Cord 3 pin, 3 Foot Short mic Cord Oxygen-Free Copper (OFC) Nylon Braided --- ## 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.co.uk/products/37158569-mini-fully-balanced-single-ended-passive-preamp-hi-fi-pre](https://www.desertcart.co.uk/products/37158569-mini-fully-balanced-single-ended-passive-preamp-hi-fi-pre) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-29*