dennis1077Forum ResidentThread Starter
- Location:
- Philadelphia, PA usa
I bought a pair of KEF LS50 Metas for Christmas and have been powering them with a Marantz PM8006 at low volume in a medium size room.
I keep reading that LS50s need 100 watts to sound their best. Presumably this is because they drop to 4 ohms. One reviewer even outright questioned KEF's 8 ohm rating and claimed the LS50 Meta was actually a 4 ohm speaker.
My PM8006 is rated at 70 watts into 8 ohms and 100 watts into 4 ohms. So, is my Marantz actually feeding the KEFs 100 watts when they drop to 4 ohms?
dennis1077,Jan 13, 2022
#1
Alright4nowForum Resident
- Location:
- New Orleans, LA
Do you like the way the Metas sound?
Alright4now,Jan 13, 2022
#2
avanti1960 likes this.
dennis1077Forum ResidentThread Starter
- Location:
- Philadelphia, PA usa
I do. At first they seemed WAY too bright and fatiguing. Like, too forward in a bad way. I kept reaching to turn the volume down. This has gotten a lot better. I suppose break in IS real.
I have no complaints about sound quality. I'm just curious about what is happening power wise. Especially because I keep reading LS50s need 100 watts.
dennis1077,Jan 13, 2022
#3
Alright4now likes this.
avanti1960Forum Resident
- Location:
- Chicago metro, USA
many times what an amp speaker match should sound like "on paper" as a caution becomes absolutely fine when you actually listen in reality.
yes, an amplifier that increases power as the resistsnce is lowered is what you have with the Marantz.
power = voltage x current
current = voltage / resistance
lot of variables determine the ear test including room size, listening levels and distance from speakers.
it is at the extremes where power to resistance matches become tested, e.g higher volume levels in larger rooms further away from speakers.
if you are satisfied then no worries.avanti1960,Jan 13, 2022
#4
aunitedlemon and Ilusndweller like this.
jeffmackwoodForum Resident
- Location:
- Ottawa
Everything that you posted after the part I've bolded is therefore ignorable.
Don't worry. Enjoy listening.
Jeff
jeffmackwood,Jan 13, 2022
#5
drh, Ilusndweller and dennis1077 like this.
Dream OnForum Resident
- Location:
- Canada
The specs suggest the Marantz is capable of outputting 100 watts into 4 Ohms. But is it actually doing that? Depends on how loud you listen. If you play your speakers at low volumes in a small/medium sized room, most of the time you are probably using 1 watt or less. If you play louder then it will draw more power. And peaks, at moderate to loud volumes, will require good amounts of power for short durations.
I think when people mention an amp that puts out 100 watts, they are referring to the 8 ohm rating. The Marantz is under that. But that is a generality. As above, how much you actually need is largely dictated by how you use the speakers. I'd guess the Marantz has enough power as long as you aren't really cranking up the volume.
Dream On,Jan 13, 2022
#6
fishSenior Member
- Location:
- NYS, USA
They are rated at 40-100 W at 8 Ω (min. 3,5 Ω) , Sensitivity (2.83V/1m) 85 dB
Just means that they will max out with a 100 watts and have a low sensitivity.
You're amp is giving them everything they want. Maybe with a bit more current they will have more overhead but likely not necessary unless you want to push them near their max SPL at 106 dB.
All of this is their maximum threshold.Im my opinion if you're looking for more from them you'd want to consider the R3 model over the LS50. 15-180 W at 8 Ω (min. 3,5 Ω) , Sensitivity (2.83V/1m) 87 dB.
Steve Gutenberg, who is a fan of the LS50's always says the better choice is the R3.fish,Jan 13, 2022
#7
TheVinylAddictLook what I found
- Location:
- AZ desert
Oh, you'll also find many that will say that you *don't* need 100W too with the LS50's.
Who do you believe? In the end, like many sometimes you just have to try them yourself after getting answers all over the spectrum.
Remember, synergy plays a key role, and not everyone who posts have they're systems well integrated or set up.
So, as asked are you posting because you're not happy with the sound, or wondering if there's greener grass with a better amp driving them?
TheVinylAddict,Jan 13, 2022
#8
dennis1077 likes this.
Larry ISenior Member
- Location:
- Washington, D.C.
I don't think you have to worry about sufficient power. If you like what you are hearing, that is all that matters. You will not be taxing your amp at all unless you plan to recreate a rock concert at full volume (which your speakers can't do no matter how much power it is fed).
Larry I,Jan 13, 2022
#9
fish likes this.
dennis1077Forum ResidentThread Starter
- Location:
- Philadelphia, PA usa
This is definitely a greener grass type of post. I think they make a great match! Still, there's this nagging voice that ponders whether an amp with higher wattage would somehow drive the speakers better.
dennis1077,Jan 13, 2022
#10
Alright4now and TheVinylAddict like this.
TheVinylAddictLook what I found
- Location:
- AZ desert
Well, greener grass recs are right in this forum's wheelhouse but I'd need a budget to know what level of quality is available, and whether it'd be worth it then.
But I don't think you're in a bad spot with the Marantz, and if your budget gets too high in your spot I'd start wondering about new speakers then.... if you catch my drift. (that voice you mentioned)
TheVinylAddict,Jan 13, 2022
#11
aunitedlemon likes this.
Dream OnForum Resident
- Location:
- Canada
I would guess an Anthem 225 would be a great option. Lots of power, on the warm side, and affordable on the used market - around $1K.
Just a guess though. Never heard the combo, so this guess isn't worth a lot. But the Anthem is a beast and sounds very good.
Dream On,Jan 13, 2022
#12
2channelforeverForum Resident
- Location:
- Western Washington, the State, USA
Something to consider if you're wed to power amp specs which Marantz is not, at least with their 8000 series. I believe the 8006's power amp is the same as the 8004, an americanization of the euro market's PM-KI-Lite, which was tested by Australian HiFi circa 10 years ago at close to 90 & 150 watts, 8 & 4 ohm respectively.
2channelforever,Jan 13, 2022
#13
dennis1077 likes this.
dennis1077Forum ResidentThread Starter
- Location:
- Philadelphia, PA usa
Thank you for sharing this. I was reading through reviews on Amazon and one guy claimed the PM8006 puts out 100 watts and had a source to back up.
"Marantz is always very conservative with their power ratings; the PM8006 actually outputs a continuous 100wpc into 8 ohms, with dynamic power handling of 128wpc into 8 ohms. These measurements were published in HiFi News magazine, September 2018 issue, page 51 — I've attached a screenshot."
https://www.amazon.com/portal/custo...dL&imageExtension=jpg&reviewId=R23LSLMP8IJV5U
dennis1077,Jan 13, 2022
#14
2channelforever likes this.
IlusndwellerS.H.M.F.=>Reely kewl.
- Location:
- Columbus, Ohio
Im sure those who have had amps with power meters will attest that "generally speaking" they arent usually using (granted some like to really turn up the volume every once in a while) much power to get nice listening levels. As has been mentioned, larger rooms, listening positions farther away, and inefficient speakers increase power requirements/usage. If the low end starts to suffer at louder volumes, then you need a more powerful amp.
Ive played around a good amount with B&W CDM-1SE (8 Ohm, 88 dB efficiency, 58 Hz on the low end, 30-120W recommended power) with both Luxman M120A (120W@8 Ohm, ?@4 Ohm) and Forte Model 3 (200W@8, 400W@4). Im convinced that 120W max power rating is rather conservative. The Forte could play them noticeably cleaner at louder volumes, and louder period. When I threw in a 50 Hz high pass filter with the Forte, the results were scary. I was absolutely blown away by how loud and clean they could play.
Last edited: Jan 13, 2022
Ilusndweller,Jan 13, 2022
#15
dennis1077 likes this.
Dale A BForum Resident
- Location:
- Greenville, WI
I think you need to quit reading about the LS50’s - that will drive you crazy.
Dale A B,Jan 13, 2022
#16
dennis1077, aunitedlemon and Alright4now like this.
fishSenior Member
- Location:
- NYS, USA
Many of the Marantz amps were under rated.
The KI Ruby on a bench tests closer to 260 watts in 4 ohms. While the PM10 showed over 550 watts in 4 ohms and below.fish,Jan 13, 2022
#17
2channelforever likes this.
Confused by power rating (2024)
Table of Contents
dennis1077Forum ResidentThread Starter
Alright4nowForum Resident
dennis1077Forum ResidentThread Starter
avanti1960Forum Resident
jeffmackwoodForum Resident
Dream OnForum Resident
fishSenior Member
TheVinylAddictLook what I found
Larry ISenior Member
dennis1077Forum ResidentThread Starter
TheVinylAddictLook what I found
Dream OnForum Resident
2channelforeverForum Resident
dennis1077Forum ResidentThread Starter
IlusndwellerS.H.M.F.=>Reely kewl.
Dale A BForum Resident
fishSenior Member
References
References
- https://forums.stevehoffman.tv/threads/confused-by-power-rating.1127821/
- https://www.manualslib.com/manual/1764141/Graff-G-8006.html
- https://www.kbauthority.com/graff-g-8006-m-series-thermostatic-rough-valve.html
Top Articles
16 Eye Makeup Tips for Mature Eyes, According to Makeup Artists
11 of the Best Eyeshadows for Mature Lids
The Best Eye Makeup for Older Women, According to a Celebrity MUA
Latest Posts
13 Top Eyeshadows for Older Women and Age-Defying Looks
Makeup Artists Always Recommend *This* Type of Eyeshadow for Mature Skin—Plus the Best to Shop
Recommended Articles
- Louisville-based Texas Roadhouse CEO Kent Taylor took his life after COVID-19 struggle
- Cặp Cấp 2 Xbags - Chất Lượng Bền Bỉ, Phong Cách Và Tiện Ích, Đáp Ứng Mọi Nhu Cầu Học Tập
- ‘Star Wars: Skeleton Crew’: What To Know About the New Disney Plus Series
- Av Club How A Realist Hero Rebuilt The Kingdom Part 2
- What Is Tom Clancy's Rainbow Six 3: Raven Shield Coded In
- Mariinsky Ballet Delivers a Legendary La Bayadère
- Actor From Golden Dream On Green Island
- When Does Cat & Dogs! Come Back
- Politics latest: Starmer makes key appointment - as No 10 condemns 'misogynistic' Gregg Wallace comments
- Carnival King 110 oz. Cheddar Cheese Sauce Bag - 4/Case
- Where Can I See Shaun The Sheep: One Giant Leap For Lambkind (2010)
- Aaron Paul Bio, Wiki, Age, Height, Family, Wife, Breaking Bad, Bojack Horseman, Black Mirror, Net Worth, Movies, and TV Shows
- Mashed: Drive To Survive Afk
- Pachinko Tetsujin: Shichiban Shoubu Samurai
- Shimmer and Shine Season 4 Episodes - Watch on Paramount+
- Cleaning Our Make-Up Brushes Is A New Year's Resolution We Should All Make
- Anime Like My Hero Academia – 2. Staffel
- Hand Soaps : Natural Cleaners : Target
- Choosing the Right Physiotherapy Equipment - Buying Guides MedicalExpo
- What's The Order Of The Harsh Look (2024) Movies
- "Your Wife Shouldn't Have Dug That Hole, Jim": What The Man In Yellow's Line To Jim Means In From's Season 3 Finale
- 梅府有女初长成 Blu Ray
- How Death Becomes Her Gave Writing Duo Julia Mattison and Noel Carey Permission to Be Ridiculous
- How Long Is Oxygène (2021) Book
- 10 Best Time Killer Games to Play On Mobile
- Northwest suburban religion notes
- Ho-Ho-Hold the alcohol: non-alcoholic beverages lead holiday trends
- Exploring the Characteristics and Uses of Soy Protein Isolate
- King Bundle Trucchi
- Add dentist to your CV with the GHI's winning water flosser
- Mahou Tsukai Kurohime
- What Is 超重神グラヴィオン
- Ferencvaros vs Malmo | UEFA Europa League | SuperSport
- Oral-B Sensitive & Gum X X-Filament Replacement Brush Head, 1 Count
- Sakae Umezu Movies 2019
- Where Can I Watch 78 Dana (2024) Free
- Titanic Rising: Música en la Caja de Schrödinger
- Zombie Vote Three Pals Jacob Rothschild Hits Six Words Of Character Bob The Builder Christmas Street Report Urban Cavanagh Sajak Grown Up Dad Silverback Icy World Menopause Songs From Rock & Roll 1990 Hockey Drug Take Back Day The Alpha Baa Baa Twinkle
- The Tale of the Princess Kaguya | Rotten Tomatoes
- Basic technology and proper usage of home health monitoring devices
- Prefabricated Stall vs. Tiled Shower Product Guide
- 渡洋史 Baby
- Passage Of The Stars: Birth Ep14
- Is Gary Fleder Republican Or Democrat
- Girl Literature Girl Ova
- The Best Lighted Makeup Mirrors
- Television Archive News Search Service
- Finger Rolling Your Curls May Be Time-Consuming, But It Works - Glam
- Best Dior Lipstick Guide (Plus Extra Lip Gloss Recommendations!) - Glamour 'n Glow
- This Off-Season Color Is This Winter's Biggest Manicure Trend
- Terra e... - Anime - AniDB
- Mahjong Solitaire - Play Online & 100% Free | Solitaired.com | Solitaired.com
- Bloodstone Online: The Ancient Curse Xbox Amazon
- Star Wars: Shadows Of The Empire Math
- Review Of Joou-Heika No Petit Angie
- What Streaming Service Has At The Moment
- The Best Toe Spacers To Align Your Toes & Relieve Foot Pain
- Joesi Prokopetz Gaza
- [REVEALED] Unique Names That Start With W - WhatStartsWith.com
- Targeted stimulation of the vagus nerve reduces renal injury in female mice with systemic lupus erythematosus
- Castle Strike Xbox Multiplayer
- Kiraboshi No Dance Movie Online Stream
- 📌 Tool: Using Splunk to analyse MikroTik logs 4.0 (Graphing everything) 💾 🛠 💻 📊
- Hair Relaxer Hysterectomy Lawsuit
- Kaiketsu Yanchamaru Tournament
- Kazue Tsunogae Charities
- Alejandra y Richard Gere derrochan complicidad en una cena en su honor en Madrid
- Protection for whistleblowers
- Is The King (2019) Based On A Book
- Unveiling The Truth: Do Toothbrush Uv Sanitizers Effectively Eliminate Germs? - ToiletSense
- Jello Run Multiplayer Cross Platform
- A multivariate Polya tree model for meta-analysis with event-time distributions
- Was 我们来了 A True Story
- Is Deodorant the New Perfume?
- Where to play trivia any night of the week in Maine
- Fini Bocchino Bodybuilding Forum
- 항거: 유관순 이야기 (2019) Film Score
- Hexuma: Das Auge Des Kal Making Money
- 2023, The Year Of The Mermaid, But What Does Astrology Have To Do With It?
- My Brother's Friend Episode 82
- The ಲವ್ ಮಾಕ್ಟೇಲ್ (2020) Movie
- Fructo-oligosachariden: wat verstaan we daaronder ? Wat doen ze voor ons?
- Breaking Bad: The 15 Most Hated Supporting Characters
- 50 Shades Of Graytall Map Legend
- Allez, un peu de flood ~ - Page 4
- AKB49: Renai Kinshi Jourei
- Best Episode Of Chi Yori Mo Koi Wa
- 1000 Pack Cotton Buds | Extra Value & Big Pack
- 1000 Pack Cotton Buds | Extra Value & Big Pack
- 1000 Pack Cotton Buds | Extra Value & Big Pack
- 1000 Pack Cotton Buds | Extra Value & Big Pack
- 1000 Pack Cotton Buds | Extra Value & Big Pack
- 1000 Pack Cotton Buds | Extra Value & Big Pack
- 1000 Pack Cotton Buds | Extra Value & Big Pack
- Bleach TYBW Anime Episode 24 Discussion
- Alzheimer's & Dementia Dressing Guide
- Nina Trofimova Adult Movies
- Watch Childhood Friend Panic Ova Online
- ALL GENRES - from Piccadilly Records
Article information
Author: Dong Thiel
Last Updated:
Views: 6103
Rating: 4.9 / 5 (79 voted)
Reviews: 86% of readers found this page helpful
Author information
Name: Dong Thiel
Birthday: 2001-07-14
Address: 2865 Kasha Unions, West Corrinne, AK 05708-1071
Phone: +3512198379449
Job: Design Planner
Hobby: Graffiti, Foreign language learning, Gambling, Metalworking, Rowing, Sculling, Sewing
Introduction: My name is Dong Thiel, I am a brainy, happy, tasty, lively, splendid, talented, cooperative person who loves writing and wants to share my knowledge and understanding with you.