--- product_id: 27573919 title: "JRC MUSES01 J-FET Input Dual Operational Amplifier" brand: "muses" price: "0 zł" currency: PLN in_stock: true reviews_count: 5 url: https://www.desertcart.pl/products/27573919-jrc-muses01-j-fet-input-dual-operational-amplifier store_origin: PL region: Poland --- # Slew Rate: 12V/μs Voltage Gain: 105dB Operating Voltage: ±9V to ±16V JRC MUSES01 J-FET Input Dual Operational Amplifier **Brand:** muses **Price:** 0 zł **Availability:** ✅ In Stock ## Summary > 🔧 Elevate Your Circuit Game! ## Quick Answers - **What is this?** JRC MUSES01 J-FET Input Dual Operational Amplifier by muses - **How much does it cost?** 0 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/27573919-jrc-muses01-j-fet-input-dual-operational-amplifier) ## Best For - muses enthusiasts ## Why This Product - Trusted muses brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Minimal Offset:** Enjoy a typical input offset voltage of only 0.8mV for accurate signal processing. - • **Robust Reliability:** Designed with bipolar technology for enhanced durability and performance. - • **Precision Performance:** Experience ultra-low noise with just 9.5nV/√Hz at 1kHz. - • **Effortless Integration:** DIP8 package ensures seamless compatibility with your existing designs. - • **Ultra-Low Bias Current:** Keep your circuits efficient with a typical input bias current of just 200pA. ## Overview The JRC MUSES01 J-FET Input Dual Operational Amplifier is engineered for precision and reliability, featuring a wide operating voltage range of ±9V to ±16V, ultra-low noise output, and minimal input offset voltage, making it an ideal choice for high-performance audio and signal processing applications. ## Description Buy JRC MUSES01 J-FET Input Dual Operational Amplifier: Parts - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: A worthy upgrade - I purchased a single MUSES01 and a pair of MUSES02 's to upgrade my Asus Xonar Essence STX. The sound improvement was immediate!!! Over the last few weeks the sound has been improving. After adding these Op-Amps the music became so much warmer. The sound stage width and depth improved. I put on some acoustic material with Piano and vocals. The timber of the notes was so much more realistic lacking much of the grainy harshness the original Op-Amps produced. I have a long way to go in my quest for better sound but this very small $50 x 3 purchase was well worth the investment. I listen to both Digital and Vinyl sources. Vinyl comes through a Denon 103R and Cambridge 641p with all Japanese caps installed. Of course I am using the Asus Xonar Essence STX and outputting to Bi-Amped Martin Logan Prodigy's. My room is damped and the corners treated. Review: No Joke. more power in bass, basically open up everything while keeping things warm and detailed. - Inserted two of these into the Xonar Essense STX II, replacing the cheap 8920 and there was immediate difference...improvements in bass, soundstage...well everything basically. It tamed the highs...before I heard slight sibilance, but now it's smooth. Now I'm thinking of getting a MUSES02 for the buffer. The question remain...is it worth $50/per? Depends on how you look at it. Personally I think it is. Saved me hundreds of dollar in getting a new headphone amp. BTW I am using a Hifiman HE-560. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00AYR2TMQ | | Brand Name | Muses | | Customer Reviews | 5.0 5.0 out of 5 stars (6) | | Item Dimensions | 4.5 x 3 x 0.5 inches | | Item Weight | 9.07 g | | Manufacturer | NJR | | Model | MUSEs01 | | Mounting Type | Surface Mount | | Number of Channels | 2 | | UPC | 710228468215 695361174431 | ## Product Details - **Brand:** Muses - **Item dimensions L x W x H:** 4.5 x 3 x 0.5 inches - **Manufacturer:** NJR - **Mounting Type:** Surface Mount - **Number of Channels:** 2 ## Images ![JRC MUSES01 J-FET Input Dual Operational Amplifier - Image 1](https://m.media-amazon.com/images/I/61RN8qm2OEL.jpg) ![JRC MUSES01 J-FET Input Dual Operational Amplifier - Image 2](https://m.media-amazon.com/images/I/61ckislSeGL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ A worthy upgrade *by P***T on September 23, 2015* I purchased a single MUSES01 and a pair of MUSES02 's to upgrade my Asus Xonar Essence STX. The sound improvement was immediate!!! Over the last few weeks the sound has been improving. After adding these Op-Amps the music became so much warmer. The sound stage width and depth improved. I put on some acoustic material with Piano and vocals. The timber of the notes was so much more realistic lacking much of the grainy harshness the original Op-Amps produced. I have a long way to go in my quest for better sound but this very small $50 x 3 purchase was well worth the investment. I listen to both Digital and Vinyl sources. Vinyl comes through a Denon 103R and Cambridge 641p with all Japanese caps installed. Of course I am using the Asus Xonar Essence STX and outputting to Bi-Amped Martin Logan Prodigy's. My room is damped and the corners treated. ### ⭐⭐⭐⭐⭐ No Joke. more power in bass, basically open up everything while keeping things warm and detailed. *by N***Y on December 21, 2015* Inserted two of these into the Xonar Essense STX II, replacing the cheap 8920 and there was immediate difference...improvements in bass, soundstage...well everything basically. It tamed the highs...before I heard slight sibilance, but now it's smooth. Now I'm thinking of getting a MUSES02 for the buffer. The question remain...is it worth $50/per? Depends on how you look at it. Personally I think it is. Saved me hundreds of dollar in getting a new headphone amp. BTW I am using a Hifiman HE-560. ### ⭐⭐⭐⭐⭐ op amp of op amps *by M***M on March 24, 2014* I broke a couple pins on my opa2227 when I was taking it out to put this one(muses01) in my Little Dot i+ with 6zh1p-ev. After 5 minutes with the muses01 any thoughts i had about replacing the opa2227 were gone. Along with the thought of rolling in any of the other op amps I currently. have(jrc4556,ad8620,mc33078,opa2227). Its that 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.pl/products/27573919-jrc-muses01-j-fet-input-dual-operational-amplifier](https://www.desertcart.pl/products/27573919-jrc-muses01-j-fet-input-dual-operational-amplifier) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-24*