--- product_id: 3502894 title: "MB15b Promatch 2-Way Stereo Converter" brand: "rolls" price: "2166 DH" currency: MAD in_stock: true category: "Rolls" url: https://www.desertcart.ma/products/3502894-mb15b-promatch-2-way-stereo-converter store_origin: MA region: Morocco --- # 1/8” headphone to line level adaptor Stereo RCA to balanced XLR conversion Independent stereo level control per channel MB15b Promatch 2-Way Stereo Converter **Brand:** rolls **Price:** 2166 DH **Availability:** βœ… In Stock ## Summary > πŸŽ›οΈ Elevate your audio game with pro-level precision and control! ## Quick Answers - **What is this?** MB15b Promatch 2-Way Stereo Converter by rolls - **How much does it cost?** 2166 DH with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/3502894-mb15b-promatch-2-way-stereo-converter) ## Best For - rolls enthusiasts ## Why This Product - Trusted rolls brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Low Noise, High Gain:** Experience ultra-clean audio with a noise floor of -88 dB and gain options up to +22 dB. - β€’ **Versatile Connectivity:** Switch effortlessly between RCA and XLR inputs/outputs, adapting to any studio or live setup. - β€’ **Compact & Durable Design:** Stainless steel chassis fits neatly into any rack or desktop setup, built to last through every session. - β€’ **Dual Stereo Level Control:** Fine-tune each channel independently to match your exact sound profile and environment. - β€’ **Pro-Grade Signal Conversion:** Seamlessly convert consumer RCA to professional balanced XLR for pristine audio clarity. ## Overview The Rolls MB15b Promatch 2-Way Stereo Converter is a compact, stainless steel audio interface that converts stereo RCA signals to balanced XLR and vice versa. Featuring independent stereo level controls, a 1/8” headphone to line level adaptor, and ultra-low noise performance (-88 dB), it delivers professional-grade audio conversion and control for studio and live environments. With a durable build and versatile connectivity, it’s a must-have for audiophiles and professionals seeking flawless signal management. ## Description The MB15 Pro match converts consumer level stereo RCA signals to balanced XLR professional line level, and back. One side of the unit, labeled 1, has two XLR inputs and stereo RCA outputs. The other side labeled 2, has stereo RCA inputs and two XLR outputs. Each side has stereo level controls, and an LED indicates that power is applied to the unit. An additional benefit of the MB15 is that it will act as a Balanced XLR line level control. By adding a stereo pair jumper between the four RCA jacks (connecting ins to outs), The two level controls may be inserted into any balanced XLR line.Specifications: Max out: balanced: +18 dB, unbalanced: +12 db*max in: balanced: +22 dB, unbalanced: +22 db*input impedance: RCA: 100K ohm, XLR: 10 K Ohm, 1/8 stereo: 10K output Impedance: RCA: 100 Ohm, XLR: 100 Ohm balanced*noise floor: -88 db*gain: +4 dB In: -8 dB, -10 dB In: + 20 db*thd: .003%*Power: 12 VDC adapter (center negative)*size: 4.15 x 2.46 x 1.55 Weight: 1 lbs. (.45 kg). ## Features - Stereo RCA to Stereo XLR - Stereo level control for each channel - Works as stereo balanced line level control - 1/8” headphone level to line level adaptor ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002IL4B4 | | Audio Output Mode | Stereo | | Best Sellers Rank | #18,583 in Musical Instruments ( See Top 100 in Musical Instruments ) #21 in Recording Signal Converters | | Brand Name | rolls | | Customer Reviews | 4.5 4.5 out of 5 stars (165) | | Global Trade Identification Number | 00675889001501 | | Included Components | Promatch 2way +4/-10 Converter | | Interface | RCA | | Item Dimensions L x W | 4.15"L x 2.5"W | | Item Type Name | ROLLS Promatch and More | | Item Weight | 1.1 pounds | | Manufacturer | Rolls | | Material Type | Stainless Steel | | Model | MB15B | | Number of Channels | 2 | | Number of Items | 1 | | Number of Pins | 4 | | Part Number | MB15B | | UPC | 675889001501 | | Unit Count | 1 Count | | Warranty Description | 2-Year Warranty | ## Product Details - **Brand:** rolls - **Interface Type:** RCA - **Number of Channels:** 2 - **Number of Pins:** 4 - **Product Dimensions:** 4.15"L x 2.5"W ## Images ![MB15b Promatch 2-Way Stereo Converter - Image 1](https://m.media-amazon.com/images/I/81uJb3EeniL.jpg) ## Frequently Bought Together - Rolls MB15b Promatch 2-Way Stereo Converter - Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black - DteeDck RCA Splitter 1 Female to 2 Male, 2 Pack - RCA Audio Video Cable Splitter Adapter, Dark Blue --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ma/products/3502894-mb15b-promatch-2-way-stereo-converter](https://www.desertcart.ma/products/3502894-mb15b-promatch-2-way-stereo-converter) --- *Product available on Desertcart Morocco* *Store origin: MA* *Last updated: 2026-08-15*