Grado rs1 impedance. best amp under $1K for my. Grado rs1 impedance

 
 best amp under $1K for myGrado rs1 impedance What is the difference between HiFiMAN RE-600 and Grado RS1x? Find out which is better and their overall performance in the headphones ranking

Grado PS2000e headphones are the new flagship of the Grado lone. I enjoy my Feliks Echo OTL amp. Thanks to Bangraman, I have a pair of DT880s here on loan at the moment, and I guess that I should really put his generosity to good use. It's a very flexible arrangement. Carboncopy, I think you have heard a lot of really good amps (good taste :smile:) . The thing is, do this amp power my 650 nicely and good? and. It is a single stage class A MOSFET design with the right gain and a low output impedance. 05-0. Grado SR225X Impedance and electrical phase (GRY) Free air (YEL) and On-ear (GRN) Grado SR325X Impedance and Electrical Phase. Après les modèles de la série Pres ge, dont nous avons testé le. There are better headphones out there without any cons. I found a. 1000+ Head-Fier. My budget is 200-250 dollar. I recently bought myself a pair of used RS-1 and currently running them with my stereo amp CA Azur 740A. 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. Normal Impedance: 38 ohms: Driver Matched dB:. au can also sort you out with a FiiO E9 for $135 if you don't want a tube hybrid. So just received the SR325X for review and had a chance to compare them to the SR325E. Forums. en. Probably 15 years or so or whenever these were released. MS2i is best bang for the buck, but if you feel Grados uncomfortable, their heavyness will only enhance it. Quote: Originally Posted by subtle Isn't your thread in the for sale section enough? I don't think it's really kosher to go around advertising. Quote: OP: Grados are more expensive if NOT in the US, EXCEPT for this one:. Basically, even though Grados are 32 ohm, they are still sensitive to amplifier selection. These newly built speakers are the fourth generation of. Search titles and first posts only. 【Grado RS1(調音片)、RS1i、Hemp、HP2】音源:Pioneer BDP-3140(接隨身碟)光纖:Audioquest Optical DiamondDAC:Chord Hugo 2(純DAC模式)耳擴:SPL Phonitor XRCA線:RAMSES-II IC耳機: Grado RS1(單端) Grado RS1i(平衡) Grado Hemp(平衡) Grado HP2(Electrical Impedance and Phase Measured with 600 Ohm output impedance. Grado RS1e. The latest Alessandro Ms2 with the Grado E driver. Frequency response ranges from 12-30 kHz and the drivers are matched to 0. Headphones Grado RS-1 at a price from 799 to 799 £ >>> E-Catalog - catalog prices comparison & specs User & media reviews, manuals. Grado Labs 718. It can also automatically adjust to a lower bitrate of 330kbps or 660kbps to increase stability. It sounds identical to both the 60e and 80e, it contains the same pads and the same exact build, yet it costs more money. Comparison winner. has a tangle free cable. Transducer type: dynamic; Operating principle: open air; Frequency response: 12-30; SPL 1mV: 98; Normal Impedance: 32ohms; Driver matched db: . 683. The RS1e places a 50mm dynamic transducer and an 8 conductor cable design in an open-air configuration. In the absence of a classic "shell," all you've got is a driver, and if all you. Agent 800. Do any of the setups i am considering have that feature? the output impedance of the lyr is less than 1 ohm, and sounds wonderfulValhalla 2 + Grado RS1x’s. Title:. . Well-known member. Overview Prices Reviews Specs + Add to comparison. Featuring handcrafted Mahongany earpieces made using an intricate curing process, Grado has been able to optimize the tonal quality. sound pressure level. verbum sapienti sat. 5mm Golden Adapter, extension cable. Hi all, At this moment Im after an amp which can drive my low impedance headphones well. The RS headphones carry the classic Grado sound and are the wood-cup alternatives to the more balanced plastic/metal SR-headphones. 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. Little Dot 1+ would be a good pairing with the RS1 for little money, and they should aid in taking the edge off the occasional sibilant highs from the Pro 900. Company Information Grado Laboratories 4614 Seventh Ave. "In 1994 my dad (John Grado) went downstairs in the middle of the night to build our first RS1 headphone," says Jonathan Grado. I think I must of gotten mine second hand on classified here. This new R1i improves on the sound of the old RS1 with more detail and better bass performance. The PS500's treble is still Grado-esque, but it doesn't bring the energy and raw texture that the 325 and RS1 are capable of. I've had the RS1i for coming up to two weeks now. The RS1i uses dynamic transducers and the 8 conductor cable design all in an open air configuration, the cups being back opened. It marked the first time the RS2 could outshine the RS1, thanks in part to the RS1e's disappointing sound when it first got released. xls192. K601. Menu. You guys say that 600's aren't good for rock, well I don't agree. Nominal impedance and sensitivity on each model. The GS-1000s place the listener at least 10 rows back. . I guess i need to get a tube model. Nominal impedance: 32 Ohms Driver match db: 0. Grado RS1 vs. I remembered you saying OTL was. Home > Headphones comparison > Grado RS1x vs Yamaha EPH-100. Impedance. I haven't done any AB'ing but I think the improvement over the 225's is fairly subtle. We and our partners use cookies to give you the best online experience, including to personalise advertising and content. Gallery. Though each model has received the 4 th gen refresh, the radically redesigned RS-1x is their most ambitious yet. 408. Transducer Type: Dynamic Operating Principle: Open Air Frequency Response: 12 - 30,000 hz SPL 1mW: 99. has an open-back design. 8dB/mW. Mic No. This is a scaled-down version of Nelson Pass' Zen power amplifier for my headphones. The change isn't huge, which is kind of the point. Browse all Hardware Ads; Browse categories; Dealer eShops; Software . I like the 325's better than the RS-1. The RS1e is a masterpiece in the Grado collection. King Size Bass Booster Ear Pads Slow Rebound Memory Foam Cushion For GRADO Rs1 Rs1x Rs2 Rs2x RS1e RS2e Headphone: $27: Grado RS2e. I feel they are better balanced. (Such a wonderful. When the source material is up to standard, these headphones really shine. player: modified teac vrds-9 cd player with custom output stage. Forums. Home. I am now in a position where I can no longer accomodate these speakers and will have to go down the headphone only route. Until recently I have been using a full audiophile system: Naim CD2 player, Quatum Minstrel Amp, Ruark Equinox Speakers. The lower the impedance, the easier it is to get higher volume and requires less power. Specifically tuned for the tri-wood RS1x, this new speaker design features a more powerful magnetic circuit, a voice coil with decreased effective mass, and a reconfigured diaphragm. I haven't heard that Grado model, but if push came to shove between the two, I'd take the Grado. Cons: Cable insulation tears off after several months of use, too much weight on head. Home. 26. RS2 Home. impedance: 38 ohms. Categories. The tape mod raises everything below 1. New media New comments Browse Albums Search media. optional 15-foot Grado headphone extension cable available. Each product within this range only weighs 9g, meaning that they are very portable, and can be used anywhere that you like. Talented on-ears that set high standards at this level. Nominal Impedance: 38 ohms SPL @ 1mW: 99. With higher-impedence cans, you'd keep dialing but the gain should be. 2 oz. The RS1i is very much true to its heritage but I’m surprised how. Fit: Supra-aural (On-ear). Type Valve-powered headphone amplifier. HI-FI NEWS MAGAZINE by Ken Kessler. Grado SR325e. We used the battery-powered version for our tests, alongside the reference Graham Sleek Solo (US $950). 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. RRP: £799. Impedance peak is about 115 ohms with free air and 85 ohms on ear. +. A low-impedance pair of headphones at $300 seems like. The RS2x combines maple and hemp wood, while the RS1x combines maple, cocobolo, and hemp wood. 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). . 05 dB. I wouldn't trade my hd600 with any Grado (soundwise/comfort) If you are looking for easier to drive headphones with similair sound. The comfort isn't great either although I changed the L-cushions to the G-cushions which changes the comfort to a point. Frequency Response: 14 - 28,000 hz. I have a budget at about $500-600 give or. The Grado SR80es are exceptional and exceptionally odd headphones; very similar to the SR80is they replace. report for a prozero-ohm output impedance? I know very little about tech specs, sorry. The musical qualities of these headphones include having a warm bass, neutral mid, and smashing trebal. The snag here is, that I can't really find anything good to write about the Beyers, they seem to pale against the RS1s, so is it really worth me writing. The store will not work correctly in the case when cookies are disabled. The Zana Deux’s Hi /Lo impedance switch will drive most headphones and the nickel plated caps enhance the detail in design. Frequently bought together. Otherwise, for a high sensitivity headphone, very low noise is a plus. Categories. As such, I am looking to upgrade my main rig at home. Even. Biggie. Impedance: 32. Output Power (mW@32Ohms): 70. Just like all Grados, the RA1 sounds warm, smooth, full-bodied, rich and non-fatiguing. Forums. 52 facts in comparison. Grado RS1e. 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: . The RS1e is great with acoustic music and vocals. Something that I don't trust the iPhone (or iPod) to provide. This, together with Grad's new 50mm X Driver, has allowed the trademark. 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. The new RS1 does deviate from the standard Grado comfort. 8 dB; impedance: 38 ohms; warranty: 1. The Grado RS1 headphones: a classic! (Photograph by clothfairy via Flicker; Creative Commons license is at. New items New comments Author list Series Latest content Latest updates Latest reviews. adjustable headband with extra cushioning for a comfy fit. The in-ear range from Grado are the ideal headphones for phones, iPods, and any other portable device. . Specifically tuned for the tri-wood RS1x, this new speaker design features a more powerful magnetic circuit, a voice coil with decreased effective mass, and a reconfigured diaphragm. en. 600. Grado RS1e. smartphones graphics cards wireless earbuds CPUs. . 5 feet (also includes 4. Entry-Level Redefined The brand new Grado RS1x ($750 USD) and RS2x ($550 USD) X Driver Headphones have arrived in time for Black Friday and we’re rather impressed. I don't want to carry a portable amp around with me. . I have enjoyed listening to them and. Joined Dec 4, 2015 Posts 15. optional 15-foot Grado headphone extension cable available; frequency response: 12-30,000 Hz; sound pressure level (at 1mW): 99. 0 5 10 15 20 25 30 35 40 45 10 100 1000 10000 100000 Frequency Impedance in Ohms-60-40-20 0. The new e-Series version of the Grado RS1 Reference Series headphone continues the evolution from the original model RS1 through the award-winning RS1i to the latest enhanced version, the RS1e. ESL-1 Headphoneus Supremus. However I dont have higher impedance headphones that are most often suggested for OTL amps. 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. What is the difference between Yamaha EPH-100 and Grado RS1x? Find out which is better and their overall performance in the headphones ranking. Frequency Response: 18 - 24,000 hz. The bass was too weak and the impedance was way too high. The Rs2 might be more aggressive and maybe more intimate(?) which I absolutely love about them. $12500. Head Gear. p. The result is a stunningly beautiful looking warm-sounding headphone. Being low impedance, I read OTL tubes aren't a good match, but I saw what looked like a dark voice on here. What is the difference between Grado RS1x and Grado eGrado? Find out which is better and their overall performance in the headphones ranking. 05. Grado Magnum V3 - Marty Cocobolo Cups - pbandstephanwichI'd like to know how would the RS-1 sound from my Kenwood HD20GA7 dap. - Versatile for all genres except for EDM. like myself have either “Grado ears” or lobes made of steel. 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. The Grado RS1i is the flagship model of their ‘ Reference Series ‘. 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 /. 03. Today Grado Labs is introducing the new Reference Series, which brings fourth-generation X Drivers to the RS1x and RS2x. "A ludicrously pricey pair of headphones but the sound is that good – really!" -. RS1. Let's keep this short. The HF2 has a very smooth and liquid sound. Features: Vented diaphragm Wooden air chamber UHPLC copper voice coil wire UHPLC copper connecting cord Specifications: Transducer Type: Dynamic Operating Principle: Open Air Frequency Response: 12 - 30,000 hz SPL 1mW: 99. But to be honest, it did sound nice with my Grado RS-1 I had at the time. The Grado Labs use Rhodium, the most expensive precious metal on earth, to prevent corrosion on the connectors. The Grado RS1x combines maple, hemp and cocobolo woods into an elegant headphone that showcases what Grado's 4th gen X drivers can do. It just sounds so natural and real. Normal impedance: 32ohms: Driver matched db. 00. Categories. 5mm mini adapter. I did not move for an hour when I first heard the RS1) Meanwhile, the SR60 was getting more famous every. The best deal in Grado headphones are hands down without question the Alessandro/Grado Music Series One for $99. I can say from direct experience that Valhalla 2 is a great headphone amplifier for Audeze LCD-X, Focal Clear OG, Grados (GH2, GH4, Hemp, RS-1x), Kennerton Gjallarhorn JM Edition. The Grado RS-1 headphones are the Masterpiece in the superb and world-class collection of Grado headphones. Brooklyn Grown. Nominal impedance: 32 Ohms Driver match db: 0. King Size Bass Booster Ear Pads Slow Rebound Memory Foam Cushion For GRADO Rs1 Rs1x Rs2 Rs2x RS1e RS2e Headphone. . Images. I use MG Head OTL MKIII regularly but I found that it did an unaccept job for my ms2i, rs1 & D7000 (under transformer mode). Weighing 9oz, the headphones are an example of the wonders of Mother Nature. 43 points. E-A-R-Cup (Over the E-A-R), Headband. X Series Drivers. Nominal Impedance 38 ohms. I know low impedance cans need high current so Im wondering whether tube amps. Reengineering these components for our 50mm drivers improve efficiency, reduces. That extra efficiency allows the RS-2 to work with your iPod, but the Grados still won't play all that loud and might not cut it with whimpier MP3 players. Overview Prices Reviews Specs + Add to comparison. Specifically tuned for the tri-wood RS1x, this new speaker design features a more powerful magnetic circuit, a voice coil with decreased effective mass, and a reconfigured diaphragm. Be the first to write a review for this item. If you want to provide feedback about the accessibility of this website or you want discuss accommodations to help you use this website, please contact our team at 718-435-5340. 5mm, 6. Cosmetically, not much has changed. Looking for an amp for my Grado RS1i headphones, any recommendations would be welcomed. The CablesHere comes the kicker: I do think that the recently released, slightly cheaper, Grado HF2 is better than the RS1 in playing RS1’s own playlist. I don't think I'll ever spend what these cost new, which for the current model is around £790. 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. A subreddit dedicated to Grado Labs. 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. I have been generally a sennheiser guy. Item #649497130. The new RS1 does deviate from the standard Grado comfort. Search. Impedance is the device’s electrical resistance to the current being pushed through it. Our Price: $400. frequency response: 12-30,000 Hz. Grado SR325X vs E Impressions. Acajou, cuir, or et cuivre, tels sont les ingrédients du casque Grado RS-1i pour ravir les oreilles des mélomanes les plus exigeants. Active and engaging, it's simply the kind of headphone that does most. They're decently comfortable and have a well-balanced mid-range and a good bass for an open-back design. I have a pair of Grado RS1i that I'd like to buy an amp for. that was my first encounter with the RS-1 (and only one with the RA-1). The RS 2 is the number three model in Grado’s headphone lineup, but among headphone aficionados it enjoys a reputation for capturing much of the essential goodness of the very expensive, top-tier Grado models (the RS 1 and GS 1000), yet at a more accessible price. Home. Classified: FOR SALE - Grado RS1 Headphones asking for $450. 25. 27 points. 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. " i am looking amp for my grado rs1. I own a grado Rs-1's which replaced my pair of HD500 classic's which I use for my recording and work on my keyboard's. "i am looking amp for my grado rs1. Sep 20, 2014. vs. Two Channel: Rega Planar 2 / NAD D3045 / Elac Debut B6. Grado RS2e. 97. . Category: Audiophile Headphones:. Grado RS1e. Material: Mahogany, Foam, Leather. 05 Features: - Vented diaphragm - Mahogany air chamber - UHPLC voice coil wire - UHPLC connecting cord Alessandro High-End Products and Grado Labs have. The RS1 has a distinctively higher treble than both GS1000 and RS2; with about the same bass as the RS2. The Sound of Wood. 32 ohms. 05 dB. Yes, wood cups are part of the sound, and different wood = slightly different sound. The RS1 uses dynamic transducers in an open-air configuration, the cups being open. Find many great new & used options and get the best deals for Grado Rs1e Dynamic Headphones Audiophile Official at the best online prices at eBay! Free shipping for many products!. 163 Langford St. Frequency Response 12 - 30,000hz. Help. Categories. The RS-1i is the Masterpiece of the Grado collection, the Top-Of-The-Range product which oozes class both in looks and sound. A 4-pin XLR balance cable option is available. The RS1e is a total outlier in the Grado lineup. It's also worth noting that the RS-2s carry an impedance 5rating of 32 ohms far more efficient than the 120 ohms to 300 ohms of competing high-end headphones. 7 ohms (low gain), 19. . If turning the volume control of AK240 down and the RA1 up, the low is lost and the mid is too bright. has a neodymium magnet. I regularly use it with my RS-1s. I bought these after sort of lusting after them for MANY years. Little Dot 1+ would be a good pairing with the RS1 for little money, and they should aid in taking the edge off the occasional sibilant highs from the Pro 900. November 4, 2021 3:18 pm. demonstrate the silence of their BIG power amplifiers by hooking them up to Grado RS-1 headphones. RS325. Textfeud. Operating Principle: Open Air. . 05:. 00 . Driver Type: Dynamic. I was so impressed with my SR225i I brought the RS1i after reading many posts which suggest the RS1i is a good upgrade over the 225's. The RS1i is very much true to its heritage but I’m surprised. 5mm with 3. Frequency response: 12 Hz – 30kHz. The sound quality is far better than the headphone jacks provided on most equipment and it is. Share Sep 30, 2022 at 4:23 AM Post #56,755 of 63,058 InLoveWithHeadphones 100+ Head-Fier. - Great for Rock/Metal/Jazz. The final amps in the inventory are the stealth black finish. 98. Grado GS1000e. uk. Grado PS2000e headphones are the new flagship of the Grado lone. The increased build quality has given it more durability and it packs serious sound for its small size. 2 Ounces. 5m) and one 10′ (3m). The RS1 sounded like you're listening to an RS2 with slightly louder volume, and your equalizer preset set to "ROCK". Let it be know far and wide – I'm proud to be a Grado customer! Specifications Type: Stereo headphones. Grado RS1e Flat Pads %THD+noise @ 90dB and 100dB 0. On another note, I'd be interested to. 8 dBNormal Impedance: 32 ohmsDriver Matched dB: . That’s not great for people looking for commuter buddies. In the company. 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. Search. is dustproof and water-resistant. I mentioned previously the GS-1000's amazing level of detail and resolution. I love them. Follow us. Show More Show Less. Grado RS1e. Despite their high-end pedigree, the 109 Pros should be drivable from whatever device you can dredge up, from a top-quality headphone amp to a cheap old laptop you picked up on Craigslist for $50. I was really pretty worried that the upper end would be a little too consumer-friendly in it's presentation. Very lively with a smooth sound. Comparison winner $. I've read that the RS1 sensitivity is rated 98 dB. Other Custom Products. The Grado SR225x had big shoes to fill. 37 points. The increased build quality has given it more durability and it packs serious sound for its small size. Driving Grado RS1: L mode. sadly sometimes driving a lower impedance headphone is much more harder than higher impedance models because of sensitivity. The lower the impedance, the easier it is to get higher volume and. Modèle de référence de Grado, le RS-1i tend à la perfection sonore : ses écouteurs en acajou sont travaillés de façon artisanale tandis que les aimants et les conducteurs en cuivre savent retranscrire les détails les plus fins de. The Zana Deux’s Hi /Lo impedance switch will drive most headphones and the nickel plated caps enhance the detail in design. Unlike every other model, it lacks the piercing treble that is the Grado signature sound. Asking Price: USD $ 375. Specifications. The case is constructed with a maple sleeve, hemp core, and an extremely robust cocobolo wood cover. I already have a Pair of sennheiser hd600's and an ASL MG/OTL head. "We went through quite a few species of wood before finding this mahogany—which type, we'll just keep our secret for the moment. 31 points. Grado SR325e. The RS-1x joins the ranks joins the x-series refresh like the SR-range before it. McIntosh MHA200 tech specs. 112dB/mW. 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. Add products. In fact, the RS1e measures closer to a HD600 than any other headphone. impedance: 32 ohms; weight: 9 oz. Price: Check Amazon! | Check eBay! Specifications. The Grado SR225x had big shoes to fill. Click on image to enlarge. It supports Apple and Android devices and produces a smooth and warm sound ideal for bright-sounding IEMs. Info: Grado RS1 Reference Series Headphones with Grado Pigtail Adaptor. The RS1x is the first headphone to be built with the larger 50mm X Drivers. I hope to purchase one of the new Emotiva ERC-2 Differential Reference CD players to use. Because of the hard-to-source parts, the Zana Deux will be retired after current inventory is sold out. Headphones. 3m. The GH1 however, gets the good stuff! Intricate cymbal work in "Thing of Gold" is killer. What is the difference between HiFiMAN RE-600 and Grado RS1x? Find out which is better and their overall performance in the headphones ranking. Over time, there will be many debates, and in the end, it will all come down to personal preference. Grado RS1x is the culmination of years of development of the Grado RS range using 4th Generation drivers and a combination of exotic woods. Cons: - Comfort (if you don't bend the headband). 8 dB Normal Impedance: 32 ohms Driver Matched dB:. Grado PS500e. Search Head Gear. Search first posts only. Sony MDR-Z1 $ 3. Grado GS 2000e; Grado LA&OC Audio Society 25th Anniversary Edition; Grado RS1; Grado RS1e; Grado PS1000e; Grado PS2000e; Grado Special Maple Wood Limited Edition; Ultrasone Edition 8; Audeze LCD-X with Kimber Axios and UITaudio PMP headphone cable; Audeze EL-8; Astell&Kern Beyer AK T1p 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 / Earstudio ES100 The Grado RS1i is the flagship model of their ‘ Reference Series ‘. It is a stellar product, brimming with elegance in finish and sound reproduction. Help and Instructions. Search. report for a newbie; The automatic selection of the optimal AMP models; Information for. Search first posts only. Electrical Impedance and Phase Measured with 600 Ohm output impedance. smartphones graphics cards wireless earbuds CPUs. By. (Such a wonderful headphone. Our Price: $625. i've tried the RS-1 with bowls once from sources i didn't know, with the RA-1, and i thought that they even lacked the highest end, but not in a negative way.