The Stax SR-L500 and SR-L700 Impressions Thread
May 4, 2022 at 10:40 PM Post #1,726 of 1,866
I don’t have an L700 but I have an L300 LE and an L300 and I would agree with you that they love tubes. They sounded great on my Bottlehead Stat and now on my EC Electa, but less so on the Carbon. My ES-1a is the opposite - wonderful on the Carbon but less so on the Electra.
When I had a Carbon I though it sounded really good with L700 MK I, EXCEPT that the treble kind of murdered my ears after a while. Too bad! The L700 Mk II might do a little better here since it seems smoother up top - but I'd still go with tubes for L700. The 009 suffered a similar problem on Carbon. The 009S worked a lot better here, and the 007 Mk I was absolutely amazing on the Carbon.
 
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May 6, 2022 at 3:38 AM Post #1,727 of 1,866
It's currently pulling me even more than my beloved ES-R10 (but that headphone is great too).
Damn, that's some very high praise for the lambdas!



Wait, that's the R10 clone, not the original..............
 
May 24, 2022 at 11:17 PM Post #1,728 of 1,866
I'm borrowing a pair of L500k2 from Stax for review. Funnily enough, this is the first pair of Lambda shape stax I've actually spent any time with.

I have to admit, so far they are better than I thought they would be, but I'm honestly not sure what I was expecting. They certainly are interesting.
I'm curious how much of this sound the L300mk2 capture at a lower price.
 
Jun 21, 2022 at 11:16 PM Post #1,729 of 1,866
Jun 28, 2022 at 7:22 PM Post #1,730 of 1,866
img_2217.jpg

Hi Guys,

Today we are talking about an entry level, or should I say closer to entry level headphone from Stax Headphones of Japan. The L500mk2, which I will simply refer to as the L500 for the rest of this review. This is the middle of the road headphone in Stax Lambda line up, retailing currently at $830USD. The Lambda line up has existed in one form or another since the 1980s, always featuring the distinctive square housing. I think this is perhaps the most commonly thought of shape and design when people mention Stax headphones. Like their Omega, top of the line siblings, the Lambda series from Stax are electrostatic headphones, thus requiring some form of dedicated amplification to drive them, not being able to be driven from a conventional headphone or speaker amplifier.

For the majority of this review, I used a KGSSHV Carbon, fed from an iFi iDSD Pro DAC.

img_2223-2.jpg

The most interesting and surprising part of the L500’s tuning for me was its bass response. Electrostatic headphones have a fairly poor reputation for their overall bass level, usually being quite light handed in this area. I figured the L500 would be similar to the 009 in its level of bass, but it was actually much fuller sounding, by a large margin. It also had a slight amount more mid bass, as well as overall impact in the low end. For me personally this was a welcome change. It does have a bit less overall bass level than the 007mk2, but not massively so. Some listeners may actually much prefer the L500’s bass level and overall presentation, based on their personal preferences.

The midrange of the L500 was somewhat forward sounding, but slightly less so than the 007mk2, which is still the warmest headphone I have heard from Stax. I was entirely ok with the stock midrange response of the L500, apart from one area. Right around 1Khz, there is a bit of a peak which can cause some sounds and vocals to become slightly nasal sounding. Its not a large enough peak to be a deal breaker on enjoying the headphones, but bringing this area down slightly via EQ did really increase my enjoyment of these headphones. Apart from that, the mid range came across as slightly warm and forward, certainly not sucked out or cold and clinical. This is an interesting tuning choice, and I think it makes sense given the price range of the L500 and its overall goal in the marketplace. It’s not striving to be the most technically advanced headphone, but a good all rounder that is enjoyable to listen to for long periods of time. In that sense, the mid range tuning works very well.

The highs of the L500 are less bright and piercing than the SR009, and less dark and muted than the SR007mk2, making me think that they are doing their best to walk the path between the tuning of the two former flagship headphones from Stax. Again, this is a smart tuning decision, as it allows you to get a fairly high amount of clarity and sense of detail, whilst also being enjoyable for longer listening sessions.

img_2221-2.jpg

In terms of detail and technical performance, the L500 is interesting for a few reasons. The overall details levels are absolutely commendable for their $830 MSRP, although this comes with a caveat I will mention a bit later. As I mentioned earlier, I actually found the slam, or impact of the L500 to be better than it is with the 009, but its overall dynamic performance does fall behind. The L500 is also a slightly slower sounding driver overall, not having that same level of speed and “notes are tied together” feeling some top level electrostatic headphones do. There was also a very small sense of a somewhat“plastick-y” nature vs some other more natural sounding headphones on the market. I didn’t find this to be bothersome at all, it was just something I noticed on a few tracks.

The soundstage of the L500 is actually incredibly enjoyable, being very open and airy sounding, fairly wide and tall, which may be due to the shape of the driver (more of a tall oval, than round.) Imaging again is entirely acceptable in this price range, though not class leading. Not that you would expect a middle of the lineup headphone to be class leading I suppose. The comfort of the L500 is very well done, I found them incredibly comfortable. The build quality is acceptable, but do be warned they are fully made out of plastic, thus leading to an overall feel that is not the most premium.

This leads me to the Caveat I mentioned earlier. The L500 is an $830 dollar headphone, and its overall sound and performance is commendable at that price

BUT

You need an amp, or transformer of some sort to drive them. This is less of a concern when dealing with the flagship level Stax headphones, as it is generally understood you need a good amp of some sort for them, and many listeners will already have one in their collection. These amplifiers come in at varying price points, but cannot be avoided. If you already have one at your disposal, then the L500 is easy to recommend. If you don’t, then it becomes a question of – do you like the sound of electrostatic headphones, and if you do, how much, do you like that sound signature? Its very easy to buy a $1000 dollar conventional headphone, and drive it with a suitable $99 dollar amp, and reach totally satisfying sound quality levels. With the L500, you will be looking at probably equalling the headphones cost at a minimum for the amplification of said headphones. This is a conundrum, and as mentioned before, it comes down to your personal preferences, and where you feel your money will go farthest. As such, I would recommend trying out the L500 locally if possible, or at a trade show, before deciding to go all in on the land of electrostatic headphones.

img_2218-1.jpg

With all that being said, these headphones sound seriously great for their MSRP, and electrostatics do offer some traits and qualities that other headphone technologies simply can’t. Whether it is worth it to you to try them out, is entirely up to the individual. For me personally, I’m glad I’ve been exploring electrostatic headphones lately after spending just short of a decade largely avoiding them, as its been incredibly fun to do so, and as mentioned before, they just do some things others headphones can’t (and it’s up to the individual if they value those particular things.)

916bdfcb-bc11-462b-9dc4-ff192b17b105

The Stax L500mk2 is a very interesting headphone. I love that it carries on a similar look to the classic Lambda series headphones from the 1980s, whilst also sounding quite modern and presenting a sound signature that is enjoyable for long chilled out listening session. They also seem to bridge the gap between the much more expensive former flagship Stax headphones and other conventional headphones on the market. If you are willing to take amplification needs into account, I would very much recommend these headphones to someone looking to try out electrostatic headphones. I am hoping to borrow the L300 from Stax at some point, as that may prove to be an even more compelling entry level electrostatic headphone at its $455 MSRP. Two thumbs up from me
🙂
 
Jun 29, 2022 at 12:41 AM Post #1,731 of 1,866
I don't know about the L500, but with the L700 you can EQ the plasticky quality out as well. There's some unevenness in the upper mids and a sizeable dip in the FR around 3700-3800hz, and leveling all that out gets rid of much of the plasticky tembre to my ears. With no EQ, there is also a bit of a peak around 5.5 that balances things out so the plasticky tembre is not as big of an issue. But when you balance the highs by EQ then you also need to even out the upper mids or the plasticky quality will be very noticeable.

These things take very well to EQ and can be made to sound very natural while keeping their high technicalities.
 
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Jul 5, 2022 at 7:34 PM Post #1,733 of 1,866
img_2217.jpg

Hi Guys,

Today we are talking about an entry level, or should I say closer to entry level headphone from Stax Headphones of Japan. The L500mk2, which I will simply refer to as the L500 for the rest of this review. This is the middle of the road headphone in Stax Lambda line up, retailing currently at $830USD. The Lambda line up has existed in one form or another since the 1980s, always featuring the distinctive square housing. I think this is perhaps the most commonly thought of shape and design when people mention Stax headphones. Like their Omega, top of the line siblings, the Lambda series from Stax are electrostatic headphones, thus requiring some form of dedicated amplification to drive them, not being able to be driven from a conventional headphone or speaker amplifier.

For the majority of this review, I used a KGSSHV Carbon, fed from an iFi iDSD Pro DAC.

img_2223-2.jpg

The most interesting and surprising part of the L500’s tuning for me was its bass response. Electrostatic headphones have a fairly poor reputation for their overall bass level, usually being quite light handed in this area. I figured the L500 would be similar to the 009 in its level of bass, but it was actually much fuller sounding, by a large margin. It also had a slight amount more mid bass, as well as overall impact in the low end. For me personally this was a welcome change. It does have a bit less overall bass level than the 007mk2, but not massively so. Some listeners may actually much prefer the L500’s bass level and overall presentation, based on their personal preferences.

The midrange of the L500 was somewhat forward sounding, but slightly less so than the 007mk2, which is still the warmest headphone I have heard from Stax. I was entirely ok with the stock midrange response of the L500, apart from one area. Right around 1Khz, there is a bit of a peak which can cause some sounds and vocals to become slightly nasal sounding. Its not a large enough peak to be a deal breaker on enjoying the headphones, but bringing this area down slightly via EQ did really increase my enjoyment of these headphones. Apart from that, the mid range came across as slightly warm and forward, certainly not sucked out or cold and clinical. This is an interesting tuning choice, and I think it makes sense given the price range of the L500 and its overall goal in the marketplace. It’s not striving to be the most technically advanced headphone, but a good all rounder that is enjoyable to listen to for long periods of time. In that sense, the mid range tuning works very well.

The highs of the L500 are less bright and piercing than the SR009, and less dark and muted than the SR007mk2, making me think that they are doing their best to walk the path between the tuning of the two former flagship headphones from Stax. Again, this is a smart tuning decision, as it allows you to get a fairly high amount of clarity and sense of detail, whilst also being enjoyable for longer listening sessions.

img_2221-2.jpg

In terms of detail and technical performance, the L500 is interesting for a few reasons. The overall details levels are absolutely commendable for their $830 MSRP, although this comes with a caveat I will mention a bit later. As I mentioned earlier, I actually found the slam, or impact of the L500 to be better than it is with the 009, but its overall dynamic performance does fall behind. The L500 is also a slightly slower sounding driver overall, not having that same level of speed and “notes are tied together” feeling some top level electrostatic headphones do. There was also a very small sense of a somewhat“plastick-y” nature vs some other more natural sounding headphones on the market. I didn’t find this to be bothersome at all, it was just something I noticed on a few tracks.

The soundstage of the L500 is actually incredibly enjoyable, being very open and airy sounding, fairly wide and tall, which may be due to the shape of the driver (more of a tall oval, than round.) Imaging again is entirely acceptable in this price range, though not class leading. Not that you would expect a middle of the lineup headphone to be class leading I suppose. The comfort of the L500 is very well done, I found them incredibly comfortable. The build quality is acceptable, but do be warned they are fully made out of plastic, thus leading to an overall feel that is not the most premium.

This leads me to the Caveat I mentioned earlier. The L500 is an $830 dollar headphone, and its overall sound and performance is commendable at that price

BUT

You need an amp, or transformer of some sort to drive them. This is less of a concern when dealing with the flagship level Stax headphones, as it is generally understood you need a good amp of some sort for them, and many listeners will already have one in their collection. These amplifiers come in at varying price points, but cannot be avoided. If you already have one at your disposal, then the L500 is easy to recommend. If you don’t, then it becomes a question of – do you like the sound of electrostatic headphones, and if you do, how much, do you like that sound signature? Its very easy to buy a $1000 dollar conventional headphone, and drive it with a suitable $99 dollar amp, and reach totally satisfying sound quality levels. With the L500, you will be looking at probably equalling the headphones cost at a minimum for the amplification of said headphones. This is a conundrum, and as mentioned before, it comes down to your personal preferences, and where you feel your money will go farthest. As such, I would recommend trying out the L500 locally if possible, or at a trade show, before deciding to go all in on the land of electrostatic headphones.

img_2218-1.jpg

With all that being said, these headphones sound seriously great for their MSRP, and electrostatics do offer some traits and qualities that other headphone technologies simply can’t. Whether it is worth it to you to try them out, is entirely up to the individual. For me personally, I’m glad I’ve been exploring electrostatic headphones lately after spending just short of a decade largely avoiding them, as its been incredibly fun to do so, and as mentioned before, they just do some things others headphones can’t (and it’s up to the individual if they value those particular things.)

916bdfcb-bc11-462b-9dc4-ff192b17b105

The Stax L500mk2 is a very interesting headphone. I love that it carries on a similar look to the classic Lambda series headphones from the 1980s, whilst also sounding quite modern and presenting a sound signature that is enjoyable for long chilled out listening session. They also seem to bridge the gap between the much more expensive former flagship Stax headphones and other conventional headphones on the market. If you are willing to take amplification needs into account, I would very much recommend these headphones to someone looking to try out electrostatic headphones. I am hoping to borrow the L300 from Stax at some point, as that may prove to be an even more compelling entry level electrostatic headphone at its $455 MSRP. Two thumbs up from me
🙂
Hi. I rarely post anymore just mostly lurk. But as a L500 efficionado (have owned one now for 4 years, having previously went down the head-fi rabbithole), I must say your words are incredibly precise to my own opinion and experience, which is a rare thing indeed in this hobby. Cheers!
 
Jul 13, 2022 at 3:48 AM Post #1,734 of 1,866
I would like to ask a question to my more electrostatic knowledgeable fellow headfiers.

I am looking to purchase the L700MK2. I owned one in the past along with the 009 and though the 009 was far better with detail retrieval and a handful of other things I felt the L700 was more musical still very detailed and far less fatiguing.

All that being said I am looking for an amp or energizer and could use some advice. I am considering a used SRD-7 or a Woo Wee. I'd like to know if you would pick one over the other or if you could offer any alternatives in the $1k range?

Thanks guys
Dan Lee
 
Jul 13, 2022 at 3:58 AM Post #1,735 of 1,866
There is also an SRM-T1,SRM-400s, and SRM-006ts in the classifieds, but don't know if any of them would sound better than an energizer through a power amp.
 
Jul 13, 2022 at 2:01 PM Post #1,736 of 1,866
For a transformer box in the $1K range, I'd also take a look at the SRD-1 produced by Mjolnir Audio (bottom of this page: https://mjolnir-audio.com/products/). Spritzer is widely respected as an amp builder and electrostat aficionado, and I have high confidence in his products. He also has modded SRM-006t models on sale, of which I own a modded SRM-006tA. I have heard from other users that the L700 pairs well with tubes, so the T1 or the 006t would work better in that regard than the 400s. I've found that with my L700mk2, the 006tA improved the treble, clarity, and bass punch, but part of that might be due to its increased power over the SRM-D10 rather than just the tubes.
 
Jul 14, 2022 at 8:57 PM Post #1,737 of 1,866
@SolarCetacean thank you so much for the response. I was originally considering a Woo Wee, but I've read a lot of negative things about it. I considered Mjolnir audios Octave II or their SRD-1 (which I'd run through a power amp. Now I've got a few more options to play with. I was hopin to find a good price on a KGSS or KGST but haven't at a price that I could justify yet. I considered the SRM-D50, but I hate paying for a dac that I dont need.
 
Jul 15, 2022 at 7:25 PM Post #1,739 of 1,866
I wanna second the part about tubes pairing well with the lambdas. Also, I want to add that the MK2s are quite significantly better sounding than the mk1s in my personal opinion.
 
Jul 16, 2022 at 1:06 AM Post #1,740 of 1,866
I wanna second the part about tubes pairing well with the lambdas. Also, I want to add that the MK2s are quite significantly better sounding than the mk1s in my personal opinion.
What specifically do you find improved in the Mk2?
 

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