Welcome to the Piano World Piano Forums
Over 2 million posts about pianos, digital pianos, and all types of keyboard instruments
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

Gifts and supplies for the musician
SEARCH
the Forums & Piano World

This custom search works much better than the built in one and allows searching older posts.
(ad 125) Sweetwater - Digital Keyboards & Other Gear
Digital Pianos at Sweetwater
(ad) Pearl River
Pearl River Pianos
(ad) Pianoteq
(ad) P B Guide
Acoustic & Digital Piano Guide
Ad (Piano Sing)
How to Make Your Piano Sing
Who's Online
125 registered (accordeur, anamnesis, ando, anotherscott, Anita Potter, 35 invisible), 1594 Guests and 11 Spiders online.
Key: Admin, Global Mod, Mod
Quick Links to Useful Piano & Music Resources
Our Classified Ads
Find Piano Professionals-

*Piano Dealers - Piano Stores
*Piano Tuners
*Piano Teachers
*Piano Movers
*Piano Restorations
*Piano Manufacturers
*Organs

Quick Links:
*Advertise On Piano World
*Free Piano Newsletter
*Online Piano Recitals
*Piano Recitals Index
*Piano & Music Accessories
*Music School Listings
* Buying a Piano
*Buying A Acoustic Piano
*Buying a Digital Piano
*Pianos for Sale
*Sell Your Piano
*How Old is My Piano?
*Piano Books
*Piano Art, Pictures, & Posters
*Directory/Site Map
*Contest
*Links
*Virtual Piano
*Music Word Search
*Piano Screen Saver
*Piano Videos
*Virtual Piano Chords
(ad) Estonia Piano
Estonia Pianos
Topic Options
#2050950 - 03/19/13 04:05 PM Kawai CN34 "hum"
Ian Lash Offline
Junior Member

Registered: 02/27/13
Posts: 6
Loc: United Kingdom
I received my new CN34 yesterday. It looks great, but when I turn it on I hear a hum. I have nothing else connected to it (so I presume it's not a "ground loop"). The volume of the hum does not increase with the volume control. It's definitely an electrical hum, not a part of the case vibrating. When my wife sat in front of it for the first time she said "I can hear a hum", which wasn't a good start.

Is this to be expected? Should it be completely silent without a key being pressed? I didn't hear the hum in the shop, but there was a lot of background noise then.

I have informed the supplier, but just wanted to make sure this is not normal.

Many thanks,
Ian

Top
(ads) Sweetwater / Roland
Kawai Superb Stage Piano and Controller

Click Here


#2050962 - 03/19/13 04:14 PM Re: Kawai CN34 "hum" [Re: Ian Lash]
Scott Hamlin Offline
500 Post Club Member

Registered: 08/11/12
Posts: 593
Bummer - Have you tried plugging it
into different outlets in the house?

Also, does it have an external power supply?
_________________________
Personal Site: http://DulceLabs.com
Casio PX-5S Facebook Group: https://www.facebook.com/groups/Casio.Px5s/

Top
#2050973 - 03/19/13 04:35 PM Re: Kawai CN34 "hum" [Re: Ian Lash]
MacMacMac Offline
3000 Post Club Member

Registered: 09/24/09
Posts: 3900
Loc: North Carolina
Send it back. Defective new merchandise should not be tolerated.

Top
#2050993 - 03/19/13 05:16 PM Re: Kawai CN34 "hum" [Re: Ian Lash]
PratO Offline
Junior Member

Registered: 02/13/13
Posts: 3
Loc: Canada
I don't hear a hum from mine so It's definitely not normal. I'd follow up with the supplier.
_________________________
Kawai CN34

Top
#2050995 - 03/19/13 05:21 PM Re: Kawai CN34 "hum" [Re: Ian Lash]
Ian Lash Offline
Junior Member

Registered: 02/27/13
Posts: 6
Loc: United Kingdom
Thanks all. I just wanted to make sure it wasn't normal. @Plink88 - no, internal power supply. I've changed the power lead and tried a different socket. @Prat0 - the noise is loudest underneath, just to the left of the power cord input. If you can't hear it then mine must be faulty, as it's pretty obvious to me and my family.

The supplier has asked me to send them a recording of the sound, so I'll see what happens. They've been very helpful and apologetic so I'll see how this goes.

Cheers
_________________________
Kawai CN34

Top
#2051009 - 03/19/13 05:42 PM Re: Kawai CN34 "hum" [Re: Ian Lash]
Kawai James Offline
9000 Post Club Member

Registered: 09/06/07
Posts: 9680
Loc: Hamamatsu, Japan
Hello Ian,

I'm sorry to read that your CN34 arrived with a defect. I expect the problem is related to the power transformer. This component can typically be replaced, however it may well be preferable to ask the store to provide a new piano.

Either way, please report this issue to the dealer and allow them to resolve the problem.

Kind regarsd,
James
x
_________________________
Employed by Kawai Japan, however the opinions I express are my own.
Nord Electro 3 fan & occasional rare groove player.

"Richard, none of us could forget you have a CLP-990." - EssBrace, 2014

Top
#2051750 - 03/21/13 05:48 AM Re: Kawai CN34 "hum" [Re: Kawai James]
pv88 Offline
2000 Post Club Member

Registered: 08/31/10
Posts: 2725
Originally Posted By: Kawai James

Kind regarsd,
James
x


James,

Did I catch a typo, above? grin

Top
#2051990 - 03/21/13 02:21 PM Re: Kawai CN34 "hum" [Re: pv88]
Temperament Offline
Full Member

Registered: 09/19/10
Posts: 424
Loc: Hun,EU

His first?

Top

Moderator:  Piano World 
What's Hot!!
Christmas Header
Christmas Lights at Piano World Headquarters in Maine 2014
-------------------
The December Free Piano Newsletter
-------------------
Forums Rules & Help
-------------------
ADVERTISE
on Piano World

The world's most popular piano web site.
-------------------
PIANO BOOKS
Interesting books about the piano, pianists, piano history, biographies, memoirs and more!
(ad) Yamaha CP Music Rest Promo
Yamaha CP Music Rest Promo
(ad) HAILUN Pianos
Hailun Pianos - Click for More
Ad (Seiler/Knabe)
Knabe Pianos
(125ad) Dampp Chaser
Dampp Chaser Piano Life Saver
(ad) Lindeblad Piano
Lindeblad Piano Restoration
Sheet Music Plus (125)
Sheet Music Plus Featured Sale
New Topics - Multiple Forums
Piano Magic Fakebook
by dlovull1
29 minutes 19 seconds ago
Veritune and rescaling
by kennyz
Today at 09:29 AM
Never thought it would end up at that instrument ...
by fatast
Today at 05:45 AM
Is Yelp reliable for evaluating piano stores?
by Le Chiffre
Today at 02:08 AM
Guide to Teaching
by Arghhh
Today at 12:39 AM
Forum Stats
77375 Members
42 Forums
160034 Topics
2350146 Posts

Max Online: 15252 @ 03/21/10 11:39 PM
Gift Ideas for Music Lovers!
Find the Perfect Gift for the Music Lovers on your List!
Visit our online store today.

Visit our online store for gifts for music lovers

 
Help keep the forums up and running with a donation, any amount is appreciated!
Or by becoming a Subscribing member! Thank-you.
Donate   Subscribe
 
Our Piano Related Classified Ads
|
Dealers | Tuners | Lessons | Movers | Restorations | Pianos For Sale | Sell Your Piano |

Advertise on Piano World
| Subscribe | Piano World | PianoSupplies.com | Advertise on Piano World | Donate | Link to Us | Classifieds |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter | Press Room |


copyright 1997 - 2014 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission