I much rather prefer the Denon AH-D 950s. The RS1e is a masterpiece in the Grado collection. Focal Clear MG. Nominal Impedance: 32 ohms. I also used the Grado SR-60 headphones and the some good too. But the Reference Series One headphones represent a departure for Grado, by dint of both materials choice— wood! —and pricing. Impedance: 32 ohm. iBasso DX320 Max Ti, L&P W4, Fiio BTR7, I-Pod Touch 2019, Grado sr225x, Grado RS1 button, Grado GH1, Grado GW100x, FiR Audio VxV, FiR Audio Radon 6, 64 Audio Volur, PW Audio 1950 Shielding, Effect Audio Fusion 1. A new SR80e costs $99. Categories. We can all name at least one or two companies which have been flushed right down the toilet by the prodigal son, and those of us who wax nostalgic about firms which survive past the originator's retirement just hate it when the founder's successors turn into the destroyer of his legacy. The final amps in the inventory are the stealth black finish. 683. Headphones: Audeze: LCD-X (2016), LCD-4 (Camphor Burl, 200 ohms); Beyerdynamic: DT880 (600 ohms: Custom Cans UK. 8dB/mW. I think I must of gotten mine second hand on classified here. The company states the new X-series have a completely revised driver, new cable and the lower models have a padded headband too. The Grado in-ear headphone range offers brilliant designs, and wonderful sound quality in one very small package. 1 & r. beyerdynamic-dt-770-pro-80-closed-studio-headphones grado grado-rs1 grado-sr60-headphones headphones over-ear woodies 1; 2; 3. Frequency Response 12 - 30,000hz. 34 points. Featuring handcrafted Mahogany earpieces made using an intricate curing process, Grado has been able to optimize the tonal quality. I bought these after sort of lusting after them for MANY years. Share Aug 13, 2010 at 2:06 PM Post #4 of 57 MrSlim Member of the Trade. Our Price: $400. . I remembered you saying OTL was. 4. " i am looking amp for my grado rs1. Email us for Expert Advice or anything else: sales@hifix. I am leaning on the Grados for compatibility reasons. The RS-1 is the Masterpiece of the Grado collection, the Top Of The Range product which oozes class both in looks and. New driver cones and voice coil have been fine-tuned to be consistent throughout the frequency range. 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. 112dB/mW. It is a single stage class A MOSFET design with the right gain and a low output impedance. The lower the impedance, the easier it is to get higher volume and requires less power. Input Impedance: 50k ohm; Output Impedance: <0. Share Reactions: ledzep and tombrisbane. The one consistent aspect about the Grado SR325x is their delivery sound. Comparison of Grado RS1e and Grado SR325e based on specifications, reviews and ratings. 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 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). Headphones: Shure 846, Grado RS1, Audeze LCD-5 Speakers: Genelec 8331A, 7360A. What is the difference between HiFiMan Ananda and Grado RS1x? Find out which is better and their overall performance in the headphones ranking. When the wave of bots passes, th Grado RS1 Headphones. Hi everyone. They're decently comfortable and have a well-balanced mid-range and a good bass for an open-back design. I have an M^3 with a bass boost that sounds very warm, almost tubey. Share Sep 30, 2022 at 4:23 AM Post #56,755 of 63,058 InLoveWithHeadphones 100+ Head-Fier. Grado RS-1 Reference Series Headphones Equipment Reviews , Headphones + Accessory Reviews , Speakers, Subs, Soundbars & Headphones Reviews Published On: January 11, 2009It – for a low amount of money – makes your high impedance headphones such as the 300Ohm Sennheiser HD650, HD800 and 250Ohm Beyerdynamic units sound very good. Search. I was really pretty worried that the upper end would be a little too consumer-friendly in it's presentation. Be the first to write a review for this item OR just rate it. Impedance: 32 ohms. Joined Dec 4, 2015 Posts 15. It just sounds so natural and real. Home. The change isn't huge, which is kind of the point. 05 Features: - Vented diaphragm - Mahogany air chamber - UHPLC voice coil wire - UHPLC connecting cord Alessandro High-End Products and Grado Labs have. Headphones Grado RS-1 at a price from 799 to 799 £ >>> E-Catalog - catalog prices comparison & specs User & media reviews, manuals. I like the 325's better than the RS-1. The RS1 uses dynamic transducers in an open-air configuration, the cups being open. I for one have personally been a die hard Grado fan and loved the RS1 and felt I would never give them up. Frequency response: 12-30,000 Hz. Prev. 37 points. The Grado RS1i can get shouty at times or give a bit of weird bass. K601. Cable 1. 73 points. Title: Stax SR-007 SZ3-1576. RS-1 SRS-325 taste test. Operating Principle: Open Air. 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. Westone UM1. 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. This is a scaled-down version of Nelson Pass' Zen power amplifier for my headphones. Compare the sensitivity and impedance; Information for professionals. 04-0. Including both our first-ever headphone and metal pair, these classics embody seven decades of Grado Labs. Share Mar 31, 2010 at 3:43 PM Post #12. They're a touch. 1. Luckily I don’t have to buy the HF2, cause I know, now that it’s discontinued, its used price is. King Size Bass Booster Ear Pads Slow Rebound Memory Foam Cushion For GRADO Rs1 Rs1x Rs2 Rs2x RS1e RS2e Headphone. Grado rs1 headphones. Categories. I haven't done any AB'ing but I think the improvement over the 225's is fairly subtle. 8 dB. Sensitivity: 99. report for a newbie; The automatic selection of the optimal AMP models; Information for. player: modified teac vrds-9 cd player with custom output stage. +. 03. I regularly use it with my RS-1s. It's going to be for my Grado 325is, at least for now. Driving Grado RS1: L mode. Categories. The 1x does a better job than either and by a good margin. 01 0. It is way to early to tell which is the better amps for the K701, although tube amps make them sing praises. Home > Headphones comparison > Grado RS1i vs Sennheiser HD 700. 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). com Miroak-2,. Grado RS1e. Nepotism sucks. Home > Headphones comparison > Grado RS1e vs Sony MDR-Z1. Valhalla 2 + Grado RS1x’s. UPC: 182092000073: Availability: Back Ordered. Focal Elegia, Grado RS1, Grado SR225, Sennheiser HD6XX, Sony MDR-7506 Source: Mac Mini > Apogee Duet > Rupert. Grado Magnum V3 - Marty Cocobolo Cups - pbandstephanwichI'd like to know how would the RS-1 sound from my Kenwood HD20GA7 dap. We talked about the SR60i as the perfect Grado to mod because of its low cost ($79) and family resemblance to the higher-cost Grados. sound pressure level. Sound Quality. 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. Because of the hard-to-source parts, the Zana Deux will be retired after current inventory is sold out. 8 dB/mW. Pink Floyd, that Grado sensitivity isn't comparable to the PX-200's for being offered in a different magnitude. Both are low impedance at 32ohms for the Grado and 40ohms for the Pro 900. Featuring handcrafted Mahongany earpieces made using an intricate curing process, Grado has been able to optimize the tonal quality. warranty: 1 year (does not include earpads) 60-day returns. Hi all, At this moment Im after an amp which can drive my low impedance headphones well. has a tangle free cable. Wahrscheinlich hätte ich beide. 5 feet (also includes 4. The RS1 is an open air design with vented diaphragm, has an impedance of 32 ohms and a SPL of 96 dB at 1mV. warranty: 1 year (does not include earpads) 60-day returns. How to use the by-law. 00. 32 ohm. Impedance is the device’s electrical resistance to the current being pushed through it. After a few months of changing out various Grado headphones in search of an upgrade from my SR225 (RS1 buttonless, HF1, RS2 vintage, RS1 vintage), I think I'm just gonna keep the SR225 (with TTVJ flats), sell the RS1 and call it a day. 32 ohms. Grado RS1e. Home / Grado Grado RS-1 RS1 headphones $ 99. 1 1 10 100 10 100 1000 10000 100000 Frequency %THD+noise Left 90dB Right 90dB Left 100dB Right 100dB 30 Hz Square Wave-0. Email Us. Company Information Grado Laboratories 4614 Seventh Ave. that was my first encounter with the RS-1 (and only one with the RA-1). It's 32 ohm impedance is really user friendly. In some ways Im not sure that its been bettered. The latest Alessandro Ms2 with the Grado E driver. PS1000. Normal Impedance: 38 ohms: Driver Matched dB:. Grado RS1i. The housing is made of a maple sleeve, hemp. 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. Home > Headphones comparison > Grado RS1x vs HiFiMAN RE-600. Comparison of Grado RS1e and Grado RS2e based on specifications, reviews and ratings. 8dB/mW. Hi all, At this moment Im after an amp which can drive my low impedance headphones well. Here are my findings: I compared these headphones with the Gilmore Lite amplifier and Cary Xciter DAC. 05 dB. I hope to purchase one of the new Emotiva ERC-2 Differential Reference CD players to use. I didn't have much cash and I won't be able to spend too much on an amp. What is the difference between Sony MDR-1A and Grado RS1x? Find out which is better and their overall performance in the headphones ranking. I've pretty much decided to go with the Grados, but I want to make sure. The in-ear range from Grado are the ideal headphones for phones, iPods, and any other portable device. Pros: - Slightly tuned SR325e sound signature. . 7m, 3. You are in a professional report. RS1e: The Grado RS1e on-ear headphones have an open back design, and are hand-crafted from real Mahogany wood. Nominal Impedance 38 ohms. Click on image to enlarge. 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. The treble on the RS2 was a bit brighter than on the RS1. After purchasing 2 pairs of Grado headphones (125, RS1) I agonized about purchasing this companion product. Because of the hard-to-source parts, the Zana Deux will be retired after current inventory is sold out. . We and our partners use cookies to give you the best online experience, including to personalise advertising and content. i didn't know. Cosmetically, not much has changed. Normal impedance 32ohms Driver matched db . 29 points. Probably 15 years or so or whenever these were released. I wouldn't trade my hd600 with any Grado (soundwise/comfort) If you are looking for easier to drive headphones with similair sound. They just push a low-impedance headphones and made some improvements. Grado RS1 vs. Summary. I'm upgrading to some HD 598 SEs. Headphone Amplifiers: Beyerdynamics: A2, A20; Grado Labs: RA-1 (9V battery), RA-1. Grado GS3000x Statement review: price and release date. best amp under $1K for my. 05dB): 10Hz to 30kHz THD 1kHz (80kHz BW). Built-in headphone amps on CD gear tend to have high output impedance and I haven't tried one yet that didn't make Grados sound like tin cans. Grado GS3000x Statement review: price and release date. The RS1i is very much true to its heritage but I’m surprised how. Overview Prices Reviews Specs + Add to comparison. But my ears having adjusted to the LCD-2, the Grado's sounded way too thin and bright. . Carboncopy, I think you have heard a lot of really good amps (good taste :smile:) . 600. The housing is made of a maple sleeve, a hemp core, and a cocobolo outer ring. 【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. Comparison winner. vs. SPL 1mW: 99. 0 coins. The musical qualities of these headphones include having a warm bass, neutral mid, and smashing trebal. Après les modèles de la série Pres ge, dont nous avons testé le. 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. • Victoria BC Canada • V9A 3B8 • 250-383-6171. . They are made out of wood and dent pretty easily. Grado RS-1 Reference Series Headphones Equipment Reviews , Headphones + Accessory Reviews , Speakers, Subs, Soundbars & Headphones. I was so impressed that I kept my eye open for a good deal on a pair of RS-1's. Here is the RS1e. The RS-1x joins the ranks joins the x-series refresh like the SR-range before it. The tape mod raises everything below 1. The RS headphones carry the classic Grado sound and are the wood-cup alternatives to the more balanced plastic/metal SR-headphones. Home > Headphones comparison > Grado RS1x vs HiFiMan Ananda. Mic No. vs. - Great for Rock/Metal/Jazz. they sound full and open, like hearing a nice pair of speakers definitely bright, but smooth, not. 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. RS1. E-A-R-Cup (Over the E-A-R), Headband. grado grado-rs1 grado-rs-1-butonless. 418. The proposed controller considers a weighted controller combining the tracking and the impedance controls in a single structure. Color: Brown and Black. Meze Audio 109 Pro. I'm not surprised actually. The comfort isn't great either although I changed the L-cushions to the. For this use, the Zen topology is perfect excellent sound quality, simplicity, linearity and no multi-stage feedback. But to be honest, it did sound nice with my Grado RS-1 I had at the time. Transducer type Dynamic. 25. suggested Grado PS1000 Grado GR8 SoundPeats Q7 Grado PS500 Grado SR325e Grado RS2e Grado PS1000e Grado GS1000e Flips Audio. Transducer Type: Dynamic. I remembered you saying OTL was. . More than. I did not move for an hour when I first heard the RS1) Meanwhile, the SR60 was getting more famous every. 2 Ohms. Sennheiser HD 700. . 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. The RS 2 is an open-back, on-ear, dynamic (that is, voice-coil. I've had the RS1i for coming up to two weeks now. Let it be know far and wide – I'm proud to be a Grado customer! Specifications Type: Stereo headphones. 30. 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. Home. A friend recently loaned me a pair of Grado RS1. Pros: Fun, Detailed, Engaging, Easy to drive. Search. One of our top-rated headphones, the SR325x delivers superior sound with 4th Gen Grado drivers. Featuring our new 4th generation drivers, the Prestige Series is the best way to experience the storied Grado sound for the first time. Biggie. RS2 Home. The Sound of Wood. How much is it like the regular Grado Haadphones?. s. . RRP: £799. 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. The Grado RS-1 headphones are the Masterpiece in the superb and world-class collection of Grado headphones. The RS1x is the best RS1 in my opinion and is worth the extra dollars if your wallet allows. For this use, the Zen topology is perfect excellent sound quality, simplicity, linearity and no multi-stage feedback. In the company. I just upgraded my old, old Grado RS2’s to a pair of RS1x. Being low impedance, I read OTL tubes aren't a good match, but I saw what looked like a dark voice on here. Let's keep this short. 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). For Brooklyn's Grado, it means a new dynamic driver housed inside two new headphone models. Browse all Hardware Ads; Browse categories; Dealer eShops; Software . I mentioned previously the GS-1000's amazing level of detail and resolution. New items New comments Author list Series list Latest content Latest updates Latest reviews. Electrical Impedance and Phase Measured with 600 Ohm output impedance. 5m) and one 10′ (3m). 00. These are lively headphones with excellent midrange and treble detail, as well as swift, deep bass for a pair of this size and. 8 dB. Grado SR325X vs E Impressions. In the absence of a classic "shell," all you've got is a driver, and if all you. Impedance is not what you need to look at for amplifier requirements, it's sensitivity that is a measure of how much voltage is required at the headphone impedance to produce volume. Frequency Response: 12 - 30,000 hz. Pros: Fun, Detailed, Engaging, Easy to drive. Menu Search. Cons: Shouty at times, Comfort. So i basicly got my high impedance headphone setup under control (other than a pair of sealed. Headphones: Focal Clear, Focal Elegia, Grado RS1, Grado SR225, Sennheiser HD6XX, Sony MDR-7506 Source: Mac Mini > Apogee Duet > Rupert Neve Designs RNHP, Technics SL 1700 > Yamaha CA 600 > Rupert Neve Designs RNHP Speakers: Polk Audio Studio Monitor 10A w Peerless Tweeters 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! Grado Reference Series RS1 Specifications. It will allow you to hear your Grado headphones like never before. Frequency Response: 14 - 28,000 hz. the immediate difference for me is the separation and air between instruments/vocals. has a neodymium magnet. Including both our first-ever headphone and metal pair, these classics embody seven decades of Grado Labs. About this product. Transducer type: dynamic; Operating principle: open air; Frequency response: 12-30; SPL 1mV: 98; Normal Impedance: 32ohms; Driver matched db: . uk. . They're a touch. Hi everyone. Normal Impedance: 32 ohms Driver Matched dB: . - Easy to drive. It has 100-ohm output impedance - great for ZMF dynamic-driver headphones - and TWO headphone sockets. I was really pretty worried that the upper end would be a little too consumer-friendly in it's presentation. By. The GH1 however, gets the good stuff! Intricate cymbal work in "Thing of Gold" is killer. Search Head Gear. The RS1x is the first headphone to be built with the larger 50mm X Drivers. Austrian Audio Hi-X50. Grado RS1x is the culmination of years of development of the Grado RS range using 4th Generation drivers and a combination of exotic woods. Help. The 325's and the 600's are on par with each other. Grado SR325X TTVJ Deluxe (GRN) Frequency Response A high load on the site was recorded, presumably from scanning the site by bots. 00. 23 points. Overview Prices Reviews Specs + Add to comparison. I wouldn't use the RS1 as portable headphones. 9814 . sadly sometimes driving a lower impedance headphone is much more harder than higher impedance models because of sensitivity. i'm a big fan of buying used just cuz of upgrading and wanting to check out different things etc. Overview Prices Reviews Specs + Add to comparison. - Input impedance: 100k ohms - Output impedance: 32 ohms - Output power: 300mW - Warranty: One-year. New items New comments Author list Series Latest content Latest updates Latest reviews. Something that I don't trust the iPhone (or iPod) to provide. I am looking for a phone to replace my Senns HD600s. Impedance: 32. Grado's and Sennheiser are complete opposites. Forums. 5mm with 3. Watch Report This Ad. The $249 Grado GW100 Wireless headphone is what we're looking at today. The RS-1x intrigues especially with its larger 50mm x-series driver that sets it apart from all other Grado on-ears. 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 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. Grado RS1e. 0 5 10 15 20 25 30 35 40 45 10 100 1000 10000 100000 Frequency Impedance in Ohms-60-40-20 0. I don't think I'll ever spend what these cost new, which for the current model is around £790. I recently acquired a pair of RS1's. Until recently I have been using a full audiophile system: Naim CD2 player, Quatum Minstrel Amp, Ruark Equinox Speakers. More items related to this product. Dark mode only headphones in all categorieshas an open-back design. RS1. What is the difference between Grado RS1x and Grado eGrado? Find out which is better and their overall performance in the headphones ranking. I have been generally a sennheiser guy. Product Information. I also suspect a. Not everyone loves the traditional Grado flexible. Grado RS1e. MFR # RS1x. I just upgraded my old, old Grado RS2’s to a pair of RS1x. Show More Show Less. 31 points. Like all Grado headphones, the RS2x is both a low-impedance (38 ohms) and high-sensitivity (99. I've owned every Grado up to the RS-1i and they are all very bright sounding and uncomfortable. After countless hours o. 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. 32. Portable: (Apple Music) iPhone13 mini - Violectric Chronos / Apple Dongle -Sennheiser HD 599 SE / Sennheiser IE 300 / Koss Porta Pro. i think if you use it with better dac+amp solutions grado rs1 and rs2 simply invincible especially for rock music Something else to consider is the relatively low impedance (32 ohms) of all Grado headphones. The bass was too weak and the impedance was way too high. If you have efficient headphones, I suppose this might be all you need. 0 items in your cart. 00 . I didn't have much cash and I won't be able to spend too much on an amp. The Grado Labs use Rhodium, the most expensive precious metal on earth, to prevent corrosion on the connectors. So just received the SR325X for review and had a chance to compare them to the SR325E. High-impedance headphones need a good amp, not just for volume but for tone control. The RS-2s are essentially the same as Grado's flagship RS-1. Open-back on-ear headphones are a rarity and this pair show unwavering confidence in their unusual approach. A friend recently loaned me a pair of Grado RS1. Wenn ich mir heute einen Grado RS1 oder GS1000 ziehen würde, ginge ich bedenkenlos an die i-Varianten heran. Stereo headphones. MFR # RS1x. 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. For me, the RS1's were more relaxing to listen to. 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. The Grado R1si has been a legendary headphone for many years. SOLD - FOR SALE: Grado RS1 Reference Series Headphones with Grado Pigtail Adaptor . The GH1 however, gets the good stuff! Intricate cymbal work in "Thing of Gold" is killer. New items New comments Author list Series Latest content Latest updates Latest reviews. Then my legacy Grado RA1 headphone amplifier came into the picture. Other Custom Products. 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. 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. The Wonderful Grado RS1i Review July 14, 2021 by melvin Sound Quality The Grado house sound is unmistakable. Grado Labs is located in a nondescript four-story building in the Sunset Park neighborhood in Brooklyn, where Joe Grado started manufacturing phono cartridges in the early 1950s. "A ludicrously pricey pair of headphones but the sound is that good – really!" -. 1/4" plug adapter included. Web Enquiries: 02476 631 707 - Showroom Enquiries: 02476 525 200. Paulq. the losses are much less that way so when i was thinking about a GS-1 or Grace, I was thinking of the second hand market. Overview Prices Reviews Specs + Add to comparison. 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). Log in; Help. 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. It's going to be for my Grado 325is, at least for now. The RS-2s are essentially the same as Grado's flagship RS-1.