Grado RS-1 Reference Series Headphones Equipment Reviews , Headphones + Accessory Reviews , Speakers, Subs, Soundbars & Headphones. As is usual with Grado, most of the important work goes unseen. Sony MDR-Z1 $ 3. Focal Clear MG. Forums. Home. The bass was too weak and the impedance was way too high. Menu. The Grado RS1e Reference Series headphone has been improved from top to bottom end, with new. I've always favored Grado headphones because the minimal-resonance design philosophy that I feel is responsible for the uncolored midrange of their moving-iron cartridges extends. 03. Portable: (Apple Music) iPhone13 mini - Violectric Chronos / Apple Dongle -Sennheiser HD 599 SE / Sennheiser IE 300 / Koss Porta Pro. Share Mar 31, 2010 at 3:43 PM Post #12. Output Power (mW@32Ohms): 70. Hi, just bought the HD650s and currently running them on my grado RA1 amp, who is not getting the 650 fully out if i'm not wrong. Home. The sound quality is far better than the headphone jacks provided on most equipment and it is. My first real headphone rig, purchased in 1994 at Tyll's recommendation, was a Headroom Little with some Grado SR80's. Frequency Response: 12 - 30,000 hz. It’s just that it’s kind of upsetting to find out what was inside of it for the cost at the time. What amp would you recommend for a Grado RS-1 for. Again great mids and slam. I have never owned an expensive pair of headphones and have always wondered why someone would spend so much, until John Chen generously let me audition the Reference Series RS1x. これら2製品によりgradoサウンドはさらなる高みへと進化していくとのこと。 早速詳細をチェックしてみましょう！ grado rs1 . Looking into some amps to get with my RS-1 I will be purchasing, any suggestions? I'm not sure on a price range, but $200 is optimum, but will spend more if it will benefit me (worth the upgrade cost--max 400ish) Used is an option, don't mind getting better gear at a cheaper price than new. Crafted as a testament to the brand's legacy, these headphones seamlessly blend innovation and artistic finesse, delivering an unparalleled auditory journey. . source quality is really important for grado rs1-2 series. The RS1e is a total outlier in the Grado lineup. To reduce the load, the site is temporarily available only for registered users. 99. In fact, the RS1e measures closer to a HD600 than any other headphone. The HD20GA7's headphone amp is very good, though not very powerful. So in short, what are you grado rs1i's using with. Cans: Grado GH-1 / Grado SR325 x / Grado GW100x / Sennheiser HD600 / Sennheiser HD650 / Meze 109 Pro / Meze 99 Classics / Dan Clark Audio Aeon 2 Noire / Modded Beyerdynamic T70p with gaming boom mic Amps/DACs/DAPs: Oppo HA-1 / Bottlehead Crack + Speedball with integrated Khadas Tone 1 / Sony NW-A306 /. 408. In short, it gives you that front row-like experience when watching live performances. Just like all Grados, the RA1 sounds warm, smooth, full-bodied, rich and non-fatiguing. Grado GS3000x Statement review: price and release date. About this product. Popular comparisons. Search. Grado RS1 headphones. Reengineering these components for our 50mm drivers improve efficiency, reduces. deacongreg Discussion Starter. I don't think I'll ever spend what these cost new, which for the current model is around £790. I plan on getting a pair of RS-1's soon. Connected to the AK240 and Grado RS1 (32 ohms), the volume is deafeningly loud if the volume control is turned beyond the 9 o’clock position (AK240 in line-out mode). It's going to be for my Grado 325is, at least for now. Frequency response ranges from 12-30 kHz and. with Grado headphones for wonderful synergy but also works with other headphone brands that have a low impedance. The third option. Grado RS1 %THD+noise @ 90dB and 100dB 0. November 4, 2021 3:18 pm. Popular comparisons. Specifications. Featuring our new 4th generation drivers, the Prestige Series is the best way to experience the storied Grado sound for the first time. smartphones graphics cards wireless earbuds CPUs. Pros: Fun, Detailed, Engaging, Easy to drive. In the end, I myself couldn't justify relying on such a huge amount of EQ to make my headphones listenable. Grado SR325X stock F Cushion (GRY) vs. Home. PS1000. Add products. FREE 2-day Shipping: Natural, organic sound Slip on Grado's RS1i headphones and hear your music like never before startlingly clear, with a sense. That limits your choices to ZMF, a few Sennheisers,. Grado RS1e. Transducer type Dynamic. The tape mod raises everything below 1. I have been generally a sennheiser guy. com Let it be know far and wide – I'm proud to be a Grado customer! Specifications Type: Stereo headphones. I have a pair of Grado RS1i that I'd like to buy an amp for. beyerdynamic-dt-770-pro-80-closed-studio-headphones grado grado-rs1 grado-sr60-headphones headphones over-ear woodies 1; 2; 3. impedance: 32 ohms; weight: 9 oz. I love them. uk. Transducer type: dynamic; Operating principle: open air; Frequency response: 12-30; SPL 1mV: 98; Normal Impedance: 32ohms; Driver matched db: . . It's also worth noting that the RS-2s carry an impedance rating of 32 ohms--far more efficient than the 120 ohms to 300 ohms of. Categories. I listened with both SR225s and high impedance HD600s. 89. Besides, why would you take $700 home headphones outside. The lower the impedance, the easier it is to get higher volume and requires less power. Mic No. Impedance. It's going to be for my Grado 325is, at least for now. . The RS2x combines maple and hemp wood, while the RS1x combines maple, cocobolo, and hemp wood. VerdictThat noted, we use a range of headphones from the Focal Stellias and Beyerdynamic T1 Generation 2 to a pair of classic Grado RS1 without issue. Categories. A subreddit dedicated to Grado Labs. With its protruding drivers and out of the box. Show More Show Less. . The RS1e is a masterpiece in the Grado collection. New items New comments Author list Series Latest content Latest updates Latest reviews. Menu. #5 Grado PS500e. It has 100-ohm output impedance - great for ZMF dynamic-driver headphones - and TWO headphone sockets. 89 $ 3. Sennheiser HD495,HD580,HD600,Grado RS1,Grado 325 and 125. . The high. Impedance. They're decently comfortable and have a well-balanced mid-range and a good bass for an open-back design. Impedance: 32. E-A-R-Cup (Over the E-A-R), Headband. 00. Which is better for grado rs1? hifiman ef2 or little dot mkiii? or is there any amp better than both of them for 200-250 dollar Material: Plastic, Polymer, Foam. Biggie. The case is constructed with a maple sleeve, hemp core, and an extremely robust cocobolo wood cover. your RS1 too. Share Reactions: ledzep and tombrisbane. The specs that I have found are the following: It is a high output op amp circuit which is Class AB Frequency Response (-0. RS-1's are only like 10% better then sr225's on a portable rig and have a more coloured midrange. Each product within this range only weighs 9g, meaning that they are very portable, and can be used anywhere that you like. MFR # RS1x. But to be honest, it did sound nice with my Grado RS-1 I had at the time. Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. I listen to all kind of music but mostly rock, pop and heavy metal. Search first posts only. You can read more about it and peruse Grado’s history on their. 5-foot cord terminated with a 1/4-inch stereo plug, but the package also includes a 15-foot cord, and a 1/8-inch mini-plug adapter. the pads are the same old same old. Quote: OP: Grados are more expensive if NOT in the US, EXCEPT for this one:. 8dB Driver Matched: 0. It’s just that it’s kind of upsetting to find out what was inside of it for the cost at the time. Transducer Type: Dynamic. For many years I have used three sets of headphones, all from Grado Laboratories: the Reference RS-1 ($695), the SR-125 ($125), and the SR-60 ($60). . The new RS-1x retails for $920 USD/$999 AUD. The comfort isn't great either although I changed the L-cushions to the. 05:. 3mm adapter supplied) The build still wears that hand-made feel, too, which isn’t to say that it looks or feels cheap but that it doesn’t particularly look or feel machined. Click here SKU: GRADORS1x. Grado 325i Features/Specs Features: Vented diaphragm Aluminum air chamber UHPLC copper voice coil wire UHPLC copper connecting cord Tranducer type: dynamic Operating principle: open air Frequency response: 18-24 SPL 1mV: 98 Normal impedance: 32ohms Driver matched db: . En douceur, Grado poursuit la refonte de sa gamme pour passer tous ses casques en version "x" de 4ème généra on. Vinyl 404. com. If you're hellbent on a planar for rock and metal, I'd suggest finding an old HE-500 from Hifiman. grado社初、3種類の木材を組み合わせたスペシャルなハウジングを採用。温かみのある grado サウンドを新たな次元へと向上。Sennheiser HD495,HD580,HD600,Grado RS1,Grado 325 and 125. Grado RS2e. The RS1E was a revision to the line (revision 3), and includes new cup curing methods, drivers, and other materials (even new glue). The RS1e places a 50mm dynamic transducer and an eight-conductor cable design in an open-air configuration. We also discussed how the SR60 has the mellowest HF performance against other Prestige Grados, something that was important to him, since his favorite can is the DT770/80. 8 dB. The RS1x is the first headphone to be built with the larger 50mm X Drivers. 1/4" gold plated, stereo plug for full size stereo gear. Search. The company states the new X-series have a completely revised driver, new cable and the lower models have a padded headband too. Apple AirPods Max. It's also worth noting that the RS-2s carry an impedance rating of 32 ohms--far more efficient than the 120 ohms to 300 ohms of. Den GS1000 für etwas mehr Schub und Fundament und den RS1 für etwas mehr Lieblichkeit, Flair oder Magie. grado-rs-1-butonless grado-rs1 grado-rs1i-reference-series-headphones grado-sr125i-headphones grado-sr225i-headphones grado-statement-series-gs1000i-headphones headphones over-ear ttvj Replies: 12 Forum: Headphones (full-size) The Grado SR80e/SR80 are decent open-back headphones for neutral sound but a below-average choice for everything else. John carved & built the first wooden Grado AKA RS1. I also suspect a. A review of the Grado RS1e headphone including references to how it compares with the HiFiMan Sundara, Monolith M1060 v2 and Alessandro MS1Find out more here. 8 dB. This design provides very natural and accurate sound. Forums. Nominal Impedance: 32 ohms; Driver Matched dB: . Frequency Response: 12Hz to 30kHz. The driver enclosures are hand crafted from mahogany, and the other parts are made of a strong plastic material. 00. New posts Search forums. Headphones Grado RS-1 at a price from 750 to 750 $ >>> E-Catalog - catalog prices comparison & specs User & media reviews, manuals. I'm not surprised actually. Pros: - Slightly tuned SR325e sound signature. Pros: Fun, Detailed, Engaging, Easy to drive. . . Frequency Response: 12Hz to 30kHz. Click on image to enlarge. 05 dBTo put it in the most general terms possible, both provide a captivating, reliable sound signature, but the 225 will be a bit warmer and tighter while the 325 will be a bit more sparkly and loose. a. Headphones. They are light and comfortable, but sit directly on the. Here is a photo of the SR80 drivers transplanted into wood cups and with the TTVJ Deluxe pads. The thing is, do this amp power my 650 nicely and good? and. Grado SR325X vs E Impressions. RS1 + HD650 was *the* definition of the peak of head-fi on a reasonable budget for a while. Grado RS1e. The treble on the RS2 was a bit brighter than on the RS1. They're a touch. Forums. (Such a wonderful. 31 points. 8dB/mW. is dustproof and water-resistant. Mein RS-1 lief am Brocksieper Earmax und am RA-1 wirklich wunderbar und. I've had the RS1i for coming up to two weeks now. Search titles only By:Foldable devices are easier to transport and take up less storage space. Grado GW100. 32 ohm. Headphones: Audeze: LCD-X (2016), LCD-4 (Camphor Burl, 200 ohms); Beyerdynamic: DT880 (600 ohms: Custom Cans UK. The latest Alessandro Ms2 with the Grado E driver. Type Valve-powered headphone amplifier. Home > Headphones comparison > Beats by Dre Powerbeats vs Grado RS1x. The VHP-2 has a high current output and will power the Grado's greatly. adjustable headband with extra cushioning for a comfy fit. Hi all, I am currently doing very little travelling that warrants the use of the Pico and HD650/RS1, and for any short journeys I am more than content with the NE-7M's straight out of the iPhone. suggested Grado PS1000 Grado GR8 SoundPeats Q7 Grado PS500 Grado SR325e Grado RS2e Grado PS1000e Grado GS1000e Flips Audio. Grado RS1i vs Sennheiser HD 700. Search titles only By:I heard the Grado RS-1 at the Chicago show and was very impressed with the bass and dynamics it had. 1mV. They cost a bloody lot of money, but I like to gather some information and eventually start to spare bucks. Electrical Impedance and Phase Measured with 600 Ohm output impedance. (600 ohms: Custom Cans UK modified), T1 Generation 2 (600 ohms); Focal: Clear (original); Grado: 1888 Double Barrel Reserva (limited edition), GH2 (limited edition), GH4 (limited edition), GS3000x (XLR), Hemp (limited edition), PS500e,. I bought them both to have a battle of the best rock headphones. has a neodymium magnet. Impedance is the device’s electrical resistance to the current being pushed through it. 00. sound pressure level (at 1mW): 99. I have been using a Schiit Asgard 3 to drive my Grados, but someone I respect in my HiFi circle insists that I would love my new cans even more with the Schiit Valhalla 2 (since I’m a big fan of the tube sound in my loudspeaker setup). . King Size Bass Booster Ear Pads Slow Rebound Memory Foam Cushion For GRADO Rs1 Rs1x Rs2 Rs2x RS1e RS2e Headphone. Hand Assembled in. Hi all, I am currently doing very little travelling that warrants the use of the Pico and HD650/RS1, and for any short journeys I am more than content with the NE-7M's straight out of the iPhone. SPL 1mW: 99. ‘Defined’ and ‘Spacious’ Grado Labs clearly makes the RS1e for audiophiles, by every measure that matters. Weakness: Not accurate Big, and ugly design Expensive (still a good deal in comparison to Grado RS-1) Sony MDR-CD3000 is a terrific sounding closed headphone. I'm upgrading to some HD 598 SEs. Categories. Equally, we’re pleased to report that the headphone output is a good one, though its relatively high output impedance of 40 ohms means that you’ll have to match with care. I just picked up my first pair of quality cans today from my local audiophile dealer and am wondering what I got. Active and engaging, it's simply the kind of headphone that does most. . Home > Headphones comparison > Grado GR8 vs Grado RS1x. The device is designed in a way that allows sound to go out through the back of the ear cups, which usually have vents or perforations. I use MG Head OTL MKIII regularly but I found that it did an unaccept job for my ms2i, rs1 & D7000 (under transformer mode). For many years I have used three sets of headphones, all from Grado Laboratories: the Reference RS-1 ($695), the SR-125 ($125), and the SR-60 ($60). 12 reasons to shop with us. I thought it was the cheapo amps from Alislibresse that usually made these nonsensical spec sheets, but I see that European manufacturers now have. Grado RS1 Reference HeadphoneThe Grado RS1x Reference Series Headphone: According to Grado, this is the first time three different wood species were used working together in a Grado headphone. Web Enquiries: 02476 631 707 - Showroom Enquiries: 02476 525 200. PS1000. But my ears having adjusted to the LCD-2, the Grado's sounded way too thin and bright. Fiio BTR7, I-Pod Touch 2019, Grado sr225x, Grado RS1 button, Grado GH1, Grado GW100x, FiR Audio VxV, FiR Audio Radon 6, 64 Audio Volür, 634ears. suggested Grado PS500e Grado GH1 Grado PS500 Grado RS 1 Grado GS1000e Focal Clear Focal Elear Grado GH1 Grado RS1i Flips Audio HD650. The Grado RS1e is lightweight and has a big-as-all-outdoors soundstage and clarity that are unbeatable in its price class. The RS1e places a 50mm dynamic transducer and an 8 conductor cable design in an open-air configuration. 5mm (6. Hi everyone. has aptX Low Latency. 5mm, 6. Slightly diffused-sounding, not very good bass extension and tightness, forward midrange, and ever so slightly hot upper frequencies. Devices with a higher sound pressure level are generally louder when supplied with any given audio source. The Grado RS-1 headphones are the Masterpiece in the superb and world-class collection of Grado headphones. 05db * Cord length 6. I've read that the RS1 sensitivity is rated 98 dB. "i am looking amp for my grado rs1. 00. And then there is MS-Pro which is brother of RS1. The lower the impedance, the easier it is to get higher volume and. Title: Stax SR-007 SZ3-1576. The Grado SR80 headphones have an impedance of 32 ohms, so I built a CMoy Headphone Amplifier in an Altoids mint tin to drive the somewhat demanding headphones. The tape mod raises everything below 1. Retail Price: USD $695. Grado RS1e. They had a demo pair of Grado RS-1 listed on their site, and since I was interested in the RS-1i at $695, I figured their list price for these at $449, same as the RS-2 demo was a. 49 facts in comparison. Grado SR325e. 0 5 10 15 20 25 30 35 40 45 10 100 1000 10000 100000 Frequency Impedance in Ohms-60-40-20 0 20 40 60 Phase in Degrees Impedance Phase. Music -> Ears. The RS1i phones are dynamic open-ear transducers. Normal Impedance. 1 offer from $295. 3m. Comparison winner. JMHO, but you're not going to do any better than an RS1 in terms of quality of sound, it's just that the sound itself will change characteristics with a PS500 (more bass - many prefer these over the RS1), PS1000, or GS1000 (extended soundstage). This item: GRADO SR80x Prestige Series Wired Open Back Stereo Headphones. has an open-back design. Grado RS1x is the culmination of years of development of the Grado RS range using 4th Generation drivers and a combination of exotic woods. As the Grado Labs SR60x is a pair of open-back headphones, it does not attempt to block out noise at all. The Grado house sound is unmistakable. Grado RS1i. The device is designed in a way that allows sound to go out through the back of the ear cups, which usually have vents or perforations. It inherited the namesake of one of the most beloved headphones in the $200 price point range (which also happens to be one of the most popular) and knocked it out of the park. Grado RS-1i Headband Headphones - Black. I didn't have much cash and I won't be able to spend too much on an amp. It's like listening to a smooth vacuum tube amp (although we were using a solid-state Beta22 amplifier). Carboncopy, I think you have heard a lot of really good amps (good taste :smile:) . - Easy to drive. The lower the impedance, the easier it is to get higher volume and requires less power. 05dB. It’s no surprise then that our testing shows no noise attenuation below 4kHz in frequency, and higher than that it’s only cut by 25-50% in loudness. The RS1 is an open air design with vented diaphragm, has an impedance of 32 ohms and a SPL of 96 dB at 1mV. Home > Headphones comparison > Grado RS1e vs Sony MDR-Z1. 05; Sharing is caring! Impedance @ 1kHz: 33 Ohms Power Needed for 90d BSPL 0. Email us for Expert Advice or anything else: sales@hifix. Maximum Frequency. Categories. I currently have an RS1e and am the original owner of an original RS1 Vintage that I cherish. HI-FI NEWS MAGAZINE by Ken Kessler. Today Grado Labs is introducing the new Reference Series, which brings fourth-generation X Drivers to the RS1x and RS2x. The Grado in-ear headphone range offers brilliant designs, and wonderful sound quality in one very small package. . Home > Headphones comparison > Apple In-Ear vs Grado RS1x. Overview Prices Reviews Specs + Add to comparison. The RS1 might be able to produce better bass than the RS2, but I CAN'T HEAR IT WITH ALL THOSE TREBLE. Other Custom Products. In the end, I myself couldn't justify relying on such a huge amount of EQ to make my headphones listenable. Home. I love them. xls Author: Administrator Created Date: 10/11/2011 11:17:39 AMBuy Grado RS1e Reference Series Headphones, Dynamic Open Air, 12-30,000Hz Frequency Response, 32Ohms Impedance at Walmart. New posts Search forums. For the record, I've only ever heard Grado SR60's before this. I hope to purchase one of the new Emotiva ERC-2 Differential Reference CD players to use. The Grado Labs use Rhodium, the most expensive precious metal on earth, to prevent corrosion on the connectors. Price: Check Amazon! | Check eBay! Specifications. The $249 Grado GW100 Wireless headphone is what we're looking at today. Frequency response: 12-30,000 Hz. Nominal Impedance 38 ohms. The earpieces utilize an intricate curing process that optimizes the tonal quality while giving them a new look. Grado SR225X Impedance and electrical phase (GRY) Free air (YEL) and On-ear (GRN) Grado SR325X Impedance and Electrical Phase. Share Mar 31, 2010 at 3:43 PM Post #12. Valhalla 2 + Grado RS1x’s. 5mm (6. My RS1 are absolutely stock and perfect cosmetically. How much is it like the regular Grado Haadphones?. They are light and comfortable, but sit directly on the ears. grado-rs1-x Category: Headphones Tags: grado headphones, grado labs,. " i am looking amp for my grado rs1. Grado RS1 and RS2. Unlike every other model, it lacks the piercing treble that is the Grado signature sound. Desktop: (Apple Music) Imac 24 - Schiit Modi Multibit 2 / Lake People DAC RS 06 - Schiit Valhalla 2 - Grado 325 Gold Limited edition / Grado RS1 Classic. 1 & r. 8dB/mW. The specific model I’m reviewing has been discontinued for quite some time now and has been superseded by RS1e similar to other models that have carried the e series as well. Back when I first started this hobby, one of the first things I learnt from this very forum was "Grado's are for Rock lovers. Head Gear. Although CD3000 is not as accurate as the Senn HD600 (with or with out. I just brought a RA1 HG and was using them with my RS1s today. The HP1000 was the first (and only) true Joseph Grado headset, The GS1000 is the first true John Grado headset! I LOVE them both with their own signature sound and they both fit nice in my head! To be honnest the HP fills better than the GS! The HP1000 sounds flat ,smooth,detailed, accurate with average soundstage and speed!Quote: Quote: Anyone know what these sound like with the Little dot III or IVSE? I think I'm going to give one a try. Cosmetically, not much has changed. Featuring handcrafted Mahongany earpieces made using an intricate curing process, Grado has been able to optimize the tonal quality. If you could add some impressions about the two RS1 models (e and X) that would be really great. Title: Grado RS1e Flat Pads. 5mm Golden Adapter, extension cable. I was really pretty worried that the upper end would be a little too consumer-friendly in it's presentation. Transducer type: dynamic; Operating principle: open air; Frequency response: 12-30; SPL 1mV: 98; Normal Impedance: 32ohms; Driver matched db: . I am considering the Grado RS1s, Grado RS2s, Sony CD3000, or Senn HD650. Normal impedance 32ohms Driver matched db . H RS1. The all-new 'X' is Grado's fourth driver iteration in almost three decades - an earspeaker with 'reconfigured' diaphragm, higher magnetic power but lower effective voice coil mass - and will debut. 05 dB. Deals smartphones graphics cards wireless earbuds. It is way to early to tell which is the better amps for the K701, although tube amps make them sing praises. Acajou, cuir, or et cuivre, tels sont les ingrédients du casque Grado RS-1i pour ravir les oreilles des mélomanes les plus exigeants. 8 dB/mW. 37 points. Jonathan Grado is born. . Log in; Help. The 325's and the 600's are on par with each other. Categories. The RS-2s are essentially the same as Grado's flagship RS-1. Although the MS-Pro has a smooth sound, the HF2 is even smoother. Grado RS1e. I didn't have much cash and I won't be able to spend too much on an amp. grado grado-rs1 grado-rs-1-butonless. Contact Us. They come with an 8. Cons: Shouty at times, Comfort. IMHO, you'd be much happier with a ZMF Atticus, with its fantastic mids and prodigous mid bass slam. I use it with Grado SR225's but it also seems to work well with the higher impedance 'phones I have tried (300 ohm). Slightly diffused-sounding, not very good bass. The driver enclosures are hand crafted from mahogany, and the other parts are made of a strong plastic material. Frequency Response: 18 - 24,000 hz. Grado Labs 718. high impedance, leave the output transformer off, but with low impedance headphones using. . Grado SR325e. Nominal impedance: 32 Ohms Driver match db: 0. au can also sort you out with a FiiO E9 for $135 if you don't want a tube hybrid. I have no clue about the Rega, sorry. Although the MS-Pro has a smooth sound, the HF2 is even smoother. Cons: Shouty at times, Comfort. These newly built speakers are the fourth generation of. And that cable is the only thing that stands between me and the GH2. We and our partners use cookies to give you the best online experience, including to personalise advertising and content. Slightly diffused-sounding, not very good bass extension and tightness, forward midrange, and ever so slightly hot upper frequencies. Grado RS 1e is available in reports and services. 4. The impedance is pretty perfect and should not cause any problems to a reasonably designed amplifier. Product Information. A simple bend of the headband, a few hair ties (around the protruding driver, and in the channel the pad mounts to) help keep the pad from overly compressing and shoving the driver. An RS-1 would be the ideal for rock, and roughly the same price used as a K701 new ($400-500). Impedance is the device’s electrical resistance to the current being pushed through it.