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post #3031 of 3216 Old 03-12-2019, 12:57 PM
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Originally Posted by KenM10759 View Post
Those stands offered by Sound Anchor together with Blu-Tack would make LS50's or LS50 Wireless more rigid than almost any floor-standing speaker.
I bought a pair of KEF Performance speaker stands to replace the substantial two-post stands I'd been using. They remain unstable in carpet even though I've added outriggers, so I'd recommend against them although they might be fine on hardwood floors. Sound Anchors might be the way to go for carpet use.
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post #3032 of 3216 Old 03-12-2019, 01:21 PM
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I believe the main difference between LS50 and LS50 Wireless lies in the LS50W's combination of powerful bespoke internal amps and the very good DSP. While my NAD M10 on the LS50's can't touch the power of the LS50W's internal amps, once I get Dirac Live added it should be very nearly as good, with the added benefit of truly being able to contour the response.

Those stands offered by Sound Anchor together with Blu-Tack would make LS50's or LS50 Wireless more rigid than almost any floorstanding speaker. The one caveat is the lack of grilles and pretty, shiny kid-attractant drivers. Get a good amp and a pair of R7's. LOL
Passives with M10 and Dirac will most certainly sound better the LS50W since there is no Room EQ software in the wireless


It would have been nice if there was a grill for the LS50. My five year old son and his 3 year old cousin damaged both my blue drivers badly. My son poked one driver with a ball pen

Now I'm waiting for new drivers
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post #3033 of 3216 Old 03-12-2019, 01:30 PM
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KEF LS50 Owners

So i may be opting for ls50’s for seperate 2 channel . I understand they require lots of power even though i’ve noticed some have powered with likes of a marantz hdamp1 or bluesound power node.. .wondering whats the real consensus basically wondering what others on this thread are using so i can get a real idea what i can get away with as far as power for the ls50,the ls50w arent really an option fwiw.


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post #3034 of 3216 Old 03-12-2019, 01:36 PM
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Originally Posted by Timoteus Strågefors View Post
It would have been nice if there was a grill for the LS50. My five year old son and his 3 year old cousin damaged both my blue drivers badly. My son poked one driver with a ball pen

Now I'm waiting for new drivers
This was actually a concern for what may happen down the line -- so maybe I should look into speakers with grills
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post #3035 of 3216 Old 03-12-2019, 01:44 PM
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This was actually a concern for what may happen down the line -- so maybe I should look into speakers with grills
or you cover them with a blanket when its time for birthday parties or other happenings with kids or unplug them and take them away (which I should have done)
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post #3036 of 3216 Old 03-13-2019, 07:18 PM
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I have another question regarding the LS50 wireless and subwoofers. Do they downmix 5.1 to 2.0 and then do frequency crossover and feed the sub from that, as opposed to passing the .1 signal to the sub?
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post #3037 of 3216 Old 03-15-2019, 01:17 PM
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I know some people feel like the LS50 can be a bit bright/harsh at times, I think they are on the edge but I wouldn't call them bright but I have been experimenting with a bit of PEQ in the last few months and wanted to share what I've done. First, here's a graph from princeton university showing the sound power, you want this to be a gently upward sloping line, this is what sounds neutral to most people.



This is pretty good but you can see the bump centered around 2.3Khz and a smaller one at 4800Hz, I also dropped down the bump from 600-800 but that is preference, I felt like it made vocals sound a bit "honky" compared to cutting those frequencies. Next, is my in-room response, before and after EQ, you can see the same peaks in the anechoic measurements are present in the in-room curves as well. So using REW, I created the PEQ filters around 800, 2300 and 4900 and you can see the results in the after curve.



It's not a huge difference when switching back and forth but it does make the highs sound a bit more natural and the fatigue I experienced after long listening sessions is gone. Some may ask why not just get a speaker that is perfect to begin with and normally I'd agree but there is nothing close in price to the LS50 that competes in my experience. They have a robust and diffraction-free cabinet, high quality components such as the port and binding posts and a 2-way coaxial is the most realistic design I've heard. The only cabinets I know of that have a rounded face are the Revel Studio 2, Salon 2 and of course, the Blades, all of which are 15k+ so to me, it's worth it to get the last bit of performance out of the LS50 rather than buy something else.

I would probably measure your room to get them perfect but if anyone wants to try out the filters I use they are:
Frequency Cut Q
817 -1.75 2.5
2.34k -2 3.125
4.98K -1.5 3.125
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post #3038 of 3216 Old 03-16-2019, 02:29 PM
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I haven't posted in some time, but your case for LS50 is fully in line with my own. I have been setting up a new room, and considering just how and how much to use my PEQ. I am certain I'll need to manually adjust my two subs but adjustment of my mains etc was going to wait for some time. I am using LS50 as the 7 or a 7.2.2 system. The rationale for timbre matched surround has been thoroughly discussed here and elsewhere, as has the 'famous' bump. While I don't find the bump and top end rise objectionable for long term listening, I can't say that others agree when listening in long sessions.

I have REW and am just beginning to learn about how to use it. These numbers will give me some navigation markers which will not only give me a fallback position, but will enable me to ensure I'm using the software correctly. Having something which looks similar to what I may get from my own setup is invaluable. Thanks again.

Cheers, Chris

Best, Chris
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post #3039 of 3216 Old 03-16-2019, 08:54 PM
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I'm patiently waiting for Dirac Live to be activated for my NAD M10 amp as it has for my NAD T758v3. That, combined with the experience shared by Aaron will prove invaluable in fine-tuning my office LS50's.

I also appreciate the detailed posting of the graphs!

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post #3040 of 3216 Old 03-16-2019, 09:58 PM
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Originally Posted by ChristopherP View Post
I haven't posted in some time, but your case for LS50 is fully in line with my own. I have been setting up a new room, and considering just how and how much to use my PEQ. I am certain I'll need to manually adjust my two subs but adjustment of my mains etc was going to wait for some time. I am using LS50 as the 7 or a 7.2.2 system. The rationale for timbre matched surround has been thoroughly discussed here and elsewhere, as has the 'famous' bump. While I don't find the bump and top end rise objectionable for long term listening, I can't say that others agree when listening in long sessions.

I have REW and am just beginning to learn about how to use it. These numbers will give me some navigation markers which will not only give me a fallback position, but will enable me to ensure I'm using the software correctly. Having something which looks similar to what I may get from my own setup is invaluable. Thanks again.

Cheers, Chris
You definitely have to be careful with EQ, I've been experimenting with it a few months and listening back and forth to make sure the corrections sounded better than with no EQ at all. I think they do but I encourage anyone to try them out for themselves. Some advice with REW is the always measure individual speakers, multiple spots around your listening area, at least 6, and average them, the reasoning is that resonances will tend to show up in all of the measurements whereas interference only shows up in certain spots. I also prefer to average using 1/6 octave smoothing because I like to make broad EQ cuts since minor peaks and nulls in the highs aren't audible and are unnecessary to cut. Good luck.
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post #3041 of 3216 Old 03-17-2019, 04:55 AM
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You definitely have to be careful with EQ, I've been experimenting with it a few months and listening back and forth to make sure the corrections sounded better than with no EQ at all. I think they do but I encourage anyone to try them out for themselves. Some advice with REW is the always measure individual speakers, multiple spots around your listening area, at least 6, and average them, the reasoning is that resonances will tend to show up in all of the measurements whereas interference only shows up in certain spots. I also prefer to average using 1/6 octave smoothing because I like to make broad EQ cuts since minor peaks and nulls in the highs aren't audible and are unnecessary to cut. Good luck.
I can agree fully with that! When I got Dirac Live on my T758v3 running, it was easier to see exactly what was going on with each speaker. Whether or not I get the Dirac Live running in my office I'm going to wait until the work in the office is completed, and have some acoustic panels at the ready for making measurements with REW. I can really take my time with this so I can get rid of peaks and just use Dirac for the incremental fine-tuning correction.
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post #3042 of 3216 Old 04-14-2019, 01:15 PM
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I'm running a pair of LS50 Wireless as fronts in a 5.1 system. I picked up a used Denon avr-x4400h and the preouts ended up failing on me. I was able to return without issue and now have a 3400 on its way to replace it.

I'm currently running a q300 as a center but looking to replace it with a passive LS50 if I can find one at a reasonable price. Question... would it be recommended to get a separate amp to drive the LS50 center or will the 3400 avr be sufficient?

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post #3043 of 3216 Old 04-14-2019, 04:03 PM
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I'm running a pair of LS50 Wireless as fronts in a 5.1 system. I picked up a used Denon avr-x4400h and the preouts ended up failing on me. I was able to return without issue and now have a 3400 on its way to replace it.

I'm currently running a q300 as a center but looking to replace it with a passive LS50 if I can find one at a reasonable price. Question... would it be recommended to get a separate amp to drive the LS50 center or will the 3400 avr be sufficient?

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It should be fine, especially if you're not using all 5 channels of your receivers amplification. I would definitely try it first before buying an amp but I would think you'd be fine.
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post #3044 of 3216 Old 04-25-2019, 11:04 PM
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So I hooked up my LS50 wireless to the Denon 4400H AVR via the Pre Outs since the LS50 wireless has its own amp.

If I set the volume of the LS50 to anything higher than 50%, I will hear this buzzing noise coming from the LS50s, even without anything or sound is playing.

I'm using a pair of RCA cables that I just bought from Amazon (from a brand called KabelDirect) https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1



I also tried the other Pre Outs on the Denon AVR, and all of them give the same buzzing noise. So do you guys think it's the RCA cables?
I'm having the exact same issue. Anyone have any advice? Ground loop isolator?

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post #3045 of 3216 Old 04-28-2019, 06:10 PM
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I'm having the exact same issue. Anyone have any advice? Ground loop isolator?

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Isolator made things worse. I have to turn the speaker volume up to 90 to get reasonable sound levels from the Denon, which it turn drives up the audible level of the buzz/hum.

I tried 2 pronged power cables for each individual speaker, different outlet (on different circuit), made sure the outlets were grounded, tried grounding the denon to the right speaker using a speaker cable, nothing helped.

Such a frustrating situation. Im starting to question if anyone actually has these speakers running well with an avr. Speakers play perfect through the rca's, running from a 3.5mm adaptor to my phone. Clearly a power related issued.

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post #3046 of 3216 Old 04-29-2019, 07:48 AM
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I'm having the exact same issue. Anyone have any advice? Ground loop isolator?
Do you have any cable tv coaxial cables connected to the avr you could disconnect (and try again)?
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post #3047 of 3216 Old 04-29-2019, 12:00 PM
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Do you have any cable tv coaxial cables connected to the avr you could disconnect (and try again)?
No coax or any other cable involved. Ive pulled secluded the avr to include just the LS50w running through the rca's. Ive tried both a Denon AVR-4400H and now a AVR-X3400H, no diff in the buzz/hum.

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post #3048 of 3216 Old 04-29-2019, 08:52 PM
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No coax or any other cable involved. Ive pulled secluded the avr to include just the LS50w running through the rca's. Ive tried both a Denon AVR-4400H and now a AVR-X3400H, no diff in the buzz/hum.

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Have you tried talking with KEF Customer Support about this? They've been very helpful for many people and certainly would have procedures to test things and eliminate some potential causes.

In the US (and I think Canada), it's 877-271-9355

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post #3049 of 3216 Old 04-29-2019, 09:05 PM
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Have you tried talking with KEF Customer Support about this? They've been very helpful for many people and certainly would have procedures to test things and eliminate some potential causes.



In the US (and I think Canada), it's 877-271-9355
Thank you so much. I didn't even think of going that route, but will give KEF support a try.

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post #3050 of 3216 Old 05-20-2019, 06:15 AM
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If I may pick some brains here.Planning on the ls50's in near future for 2 channel/turntable. wanted to get a Marantz hd-amp1 to power but my understanding its not up to par for the ls50's. wondering what anyone thinks of the PS audio sprout100? Hopefully first hand thanks
Just came across your post. I’m running LS50s with HD-AMP1 just fine.it I shopped quite a bit. Saw this pairing recommended by a German site and their review was accurate. Amp measures much higher than rating and doubles its power into 4ohms. Originally I bought this set for office but I moved it to main room for mixed music/HT listening for next year or so until I move.

I listen below 80db avg SPL and this combo is plenty for that. Accurate, revealing.

It’s not for party rock, 100db constant avg though ...it will shut down...but then so will your ears eventually playing at that volume.

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post #3051 of 3216 Old 05-20-2019, 02:20 PM
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Does the LS50W scare anyone else in terms of long term reliability? $2200 is a lot of money to spend to have the possibility of something going wrong with all the electronics jammed into the speaker, I have heard stories peoples circuit breakers tripping and burnt boards, static, etc. The 1 year warranty isn't too spectacular either if you plan on keeping a speaker for years.

It just seems to me that the sound quality has to be substantially better OR you just must have an all-in one packing due to space restrictions and not wanting an external amp, etc for them to be worth it over the passive version which gives you more flexibility and peace of mind.

So do people feel the wireless sound that much better if being used with a subwoofer (most claim bass is better on the wireless)? You figure the passives cost $1000 less leaving you that much to spend on an amp if you don't already own one.
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post #3052 of 3216 Old 05-20-2019, 02:27 PM
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To my understanding you would have to spend more than that on an amp with the passives to match what the wireless gives you. But the passives do offer better flexibility.. this is just based what ive learned here not first hand..


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post #3053 of 3216 Old 05-20-2019, 02:52 PM
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To my understanding you would have to spend more than that on an amp with the passives to match what the wireless gives you. But the passives do offer better flexibility.. this is just based what ive learned here not first hand..
There may be some truth to that, depending upon your own ears.

I had picked up a pair of lightly used passive LS50's (in limited edition frosted black with blue driver) about 8 months ago for $900, and had been using them with an $800 Bluesound Powernode 2 for most of that time. Back in March of this I had stopped by my dealer and it turned out to be the very day they had received two of the new NAD Masters M10 streamer/DAC/amp units. I bought it minutes later. Truth be told, I did get a little discount off it's $2499 list price, but not until I hooked it up to the LS50's in my office did I know just what those speakers were capable of delivering.

A month of so later the promise of Dirac Live being implemented for it was fulfilled, and it's gotten even better!

If I had to pay full list price on both, I would have been in for $4,000. That's quite a bit more than LS50 Wireless, but I'm confident this setup (with KEF Kube 10 sub) is actually better than the Wireless. Mostly because the sub is there and perfectly integrated, but yeah...it's unreal.

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post #3054 of 3216 Old 05-21-2019, 06:05 AM
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I am looking into getting a pair of LS50s + receiver + subwoofer, but I am not exactly thrilled by the prospect of having to get so much hardware/complicated wiring around the entertainment center + added complexity (my wife would probably not approve). Therefore, I am now looking at just getting a pari of LS50 wireless, but I still have some doubts.

First off, the LS50 wireless have blown my socks off when I listened to them at a Magnolia center, but I was relatively close to them. Secondly the LS50s that I listened to without a subwoofer at a different store but without a subwoofer, and in a living room setting didn't seem that impressive (don't get me wrong - they sounded VERY good, just not LS50 wireless good when I was placed close to them). Therefore, I am also wondering whether the LS50 wireless would also sound less good from a distance of 8 ft (in a small room - 10 ft by 15 ft by 9 ft).

Secondly, I live in an earthquake prone area, and I am very worried about how to place the speakers. Everywhere I read that I should get some speaker stands, but I noticed that the stands are just that - stands. There's no mounting mechanism to secure the speakers. Additionally, having a baby who's about to start storming everywhere, I can foresee him knocking the speakers off, so I don't know whether it's a good idea to get the stands. This leads me to needing to change the entertainment center to accommodate the speakers.

For reference my room looks like <redacted, apparently I cant't include links until I get 5 posts but if you got imgur dot com slash a slash VA35b8V you can see it>, and that's an additional concern because I don't know whether the LS50 wireless can be configured for this particular configuration (the room connects to another room that you can see in the background, and there's a stairway behind the TV). In the linked image I show some M-Audio AV40s for scale to illustrate the lack of space problem. The current game plan for me is to look in other types of TV stands that could allow putting the speakers below the 55" TV.

Please note that the Magnolia guy wanted to forget about the LS50 Wireless, and instead invest in a $1500 receiver that is powerful enough to drive LS50s (I told him I never owned one before and he suggested as example getting the Marantz SR60139, which I am sure is awesome), a pair of LS50s, and a subwoofer (total cost $3000-3500 as it wasn't clear which subwoofer to get).

If you have any suggestions on how to place the speakers, or thoughts on how they may sound in the environment I linked, or what TV stand to use I would highly appreciate it.
You won't get that magic sound with LS50 and a receiver only. Maybe one of the really highend ones from Arcam or Anthem. If you really need a HT setup I would buy a mid class receiver AND a good stereo integrated amp to drive the LS50s, it will make a big difference in sound quality. Then when you want to listen to really high quality you can listen through the stereo amp only.

I've tried my LS50s with an Onkyo receiver and a Marantz receiver and the with the Marantz receiver + Hegel H80 integrated amp and it made a big difference in quality. When used with the Hegel alone, then only it was true high end sound.
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post #3055 of 3216 Old 06-29-2019, 07:28 PM
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Did any one replace KEF LS50 W Netwrok adapter? Looks like mine is dead. Any input is appreciated.
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post #3056 of 3216 Old 07-02-2019, 01:12 PM
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Has anyone used a LS50 as a center and upgraded to a true center because they werent happy with the sound.

Im using passive LS50 for fronts, phantom center. Might try moving some stuff around to test but thought I'd see if someone was unhappy with the setup to the point of moving in a different direction.

I can say I wasnt happy with a single Q100 as a center previously.

Sent from my BBF100-2 using Tapatalk
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post #3057 of 3216 Old 07-02-2019, 11:20 PM
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Quote:
Originally Posted by Turbohippo View Post
Has anyone used a LS50 as a center and upgraded to a true center because they werent happy with the sound.

Im using passive LS50 for fronts, phantom center. Might try moving some stuff around to test but thought I'd see if someone was unhappy with the setup to the point of moving in a different direction.

I can say I wasnt happy with a single Q100 as a center previously.

Sent from my BBF100-2 using Tapatalk
Sorry not me. I bought 5 more. cool:

Best, Chris
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post #3058 of 3216 Old 07-02-2019, 11:42 PM
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Originally Posted by ChristopherP View Post
Sorry not me. I bought 5 more. cool:
Ha! Awesome. So not worth the money to upgrade to a true center or just feel it sounds better with the identical speaker?

Sent from my BBF100-2 using Tapatalk
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post #3059 of 3216 Old 07-03-2019, 01:51 PM
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Cuurrent setup:

Denon AVR-X3400H
Kef LS50, Q200C, Q100 & SVS SB-2000.

Love the LS50's especially for 2 channel, but feel I'm not exploring their full potential. I've been considering a Marantz MM-7025, but wondering if it would make a noticeable difference over the Denon. I know there are better and more expensive options, but get can the Marantz for $800(CDN). I can get the Marantz PM8005 Integrated for just under 1k (CDN) as well.

Thoughts?

Kef LS50,Q200C, Q100, SVS SB-2000, Denon AVR-X3400H, NAD 216, Panasonic 50" Plasma, Xbox One.
Bedroom: Kef Q100 ,JBL Loft 20, Bic F-12, Denon AVR-S710W, PS3, 32" Insigna LED.
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post #3060 of 3216 Old 07-03-2019, 02:18 PM
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Quote:
Originally Posted by pase22 View Post
Cuurrent setup:

Denon AVR-X3400H
Kef LS50, Q200C, Q100 & SVS SB-2000.

Love the LS50's especially for 2 channel, but feel I'm not exploring their full potential. I've been considering a Marantz MM-7025, but wondering if it would make a noticeable difference over the Denon. I know there are better and more expensive options, but get can the Marantz for $800(CDN). I can get the Marantz PM8005 Integrated for just under 1k (CDN) as well.

Thoughts?
Your Denon measures ruler flat so the only way an upgrade is going to make sense is if you're clipping. I think you said you only listen around 85db max volume at your listening position correct? If so, that is only going to take 1-2 watts of power to achieve so I don't think it's worth it.
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