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Korg CA-30 Ultra Compact Chromatic Tuner | 
 enlarge | Brand: Korg
Category: Musical Instruments
List Price: $32.00
Buy New: $12.88
You Save: $19.12 (60%)
New (30)
Avg. Customer Rating:  32 reviews
Sales Rank: 4
Color: black
Media: Electronics
Autographed: No
Memorabilia: No
Number Of Items: 1
Shipping Weight (lbs): 1
Dimensions (in): 6 x 6 x 1
Warranty: 3 year parts and labor
MPN: CA30
Model: KOR CA30
UPC: 603384021878
EAN: 0603384038067
ASIN: B000BBRZ3S
Release Date: July 22, 2008
Availability: Usually ships in 1-2 business days
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| Features:
| • | Compact chromatic tuner, ideal for brass band or orchestra | | • | High-precision LCD needle-type meter for stable tuning | | • | Wide range of pitch detection covers C1--C8 | | • | Calibration function supports a variety of concert pitches | | • | Reference tone can be produced from an internal speaker. (Sound Out) |
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| Editorial Reviews:
Product Description
The Korg CA-30 is a compact chromatic tuner with high-tech features, ideal for brass band or orchestra instruments. Tuning - 12 note equal-tempered Detection range - C1 (32.70Hz) - C8 (4186.01Hz) Reference tone - C4 (261.33Hz) - C5 (523.25Hz), One octave (Built-in Speaker) Tuning modes - Meter (auto), Sound (manual) Calibration - 410 - 480Hz (1Hz steps) Tuning accuracy - +/-1cent Sound accuracy - +/-1.5cent Connection jack - Input jack (1/4 mono) Power supply - Two AAA batteries 3V Battery life - Approximately 100 hours Dimensions - Wide 4.1 x Depth 2.52 x Height 0.6 (104mm x 64mm x 15mm) Weight - 2.86 ounces (81 grams) including the batteries
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| Customer Reviews: Read 27 more reviews...
 Its Great August 28, 2008
I recomemnded this tuner , is easier to use and vere accuracy.
I dont know nothing about music but with this tuner was very easy tunning mi guitar and my violin.
Guillermo Rivas
 Excellent, but not perfect August 24, 2008
I've had two of these tuners. They are well known among bass instrument players for being able to lock in on the lowest pitches better than most other tuners. They're durable and have a long battery life. Unlike most other tuners, in noisy environments they don't lock in on higher pitches before lower ones, again a plus for low instrument players.
The one problem that I've had with these tuners is that one of them had to be set to A-439 to tune pitches that other tuners recognized as A=440. Strange.
compact Chromatic Tuner August 13, 2008
I love this tuner! I liked it so much I purchased a second one for my son. they are handy. very nice tuner. Easy to use.
It's AWESUM!! August 4, 2008
I love this tuner! It's cheap and efficient. I bought it to tune my Guzheng, a Chinese zither. Now when I play the instrument, it doesn't sound like I'm playing a score off the soundtrack of a horror movie. Haha.
This chromatic tuner is a necessity if you're self-teaching yourself how to play. I also use it with my violin, and my Bro uses it for his guitar. When I don't have the music sheets for a particular song, I have to find the notes myself. I sing in the tuner to find the correct notes. It hasn't failed me yet!!
Great for tuning a piano June 12, 2008
1 out of 1 found this review helpful
Bought this item to tune a fine, 75 year-old piano that was last tuned 40 years ago; with just a piano lever bought for $15, a single rubber mute, and this Korg tuner, I had all I needed. (And, watched a few videos on the web showing how to use the mutes...)
My concern before buying this was two-fold: could it really "hear" the pitches well, i.e. would it be confused by harmonics, and did it really display the sensitivity I needed to tune the piano so precisely that with my good ear for pitch, I wouldn't be disturbed by it? The answer on both counts is definitely, yes.
Following advice on videos & websites, I first tuned the entire middle octave of the piano just using the Korg, then tuned all other notes using a combination of watching the dial of the Korg, and listening to the current note - comparing to the note I had just tuned an octave away. I was genuinely surprised to find the Korg's precision was better than my ear... (I seem to have a tendency to want to tune everything just a wee bit sharp, according to the Korg. And I know from my singing, that everyone else in a choir always sounds slightly flat to me... this confirmed it for me! ouch! I'm not perfect!)
The Korg reads the pitch and decides (for example) if it's a C or a D-flat, then shows you with its dial-simulated LCD display how far off from its presumed pitch it really is, so that when the needle points "up" you're perfectly in pitch. In addition, you can set the entire Korg's scale up or down, so you're not limited to tuning to A-440 (e.g. you can tune it to A-441 etc. if you prefer.) However, it cannot do non-well-tempered scales; for that, you need a higher model of Korg device.
In the highest and lowest half-octaves of the piano, the Korg began to fail to properly read the note and was useless for tuning; presumably, the harmonics confused it. Not a problem, and it's so hard for the human ear to properly discern very low pitches, I wasn't surprised that the Korg couldn't do it well either.
Regarding the sensitivity of the device, all I can give are a few examples and let you infer for yourself whether it is sensitive enough. First, the Korg device gave me more sensitivity than the piano hammer / lever. That is, with the lever in place adjusting a single note, the most minimal adjustment by the hammer would produce a noticeable difference on the Korg display. That means, that simply applying pressure to the tuning hammer, which makes the tiniest shift of the gear in the piano, would be "read" by the Korg. This also happens to be the absolute minimum that I could detect a pitch change by ear. In other words, the Korg is plenty sensitive. The "resolution" of the Korg barely seems better than my ears -- but my ears are pretty good.
Looking at sensitivity another way: the most sensitive tuning you can do with a piano, when you tune two strings at the same pitch, is to listen to the "beats" (+ and - wave interference of the two pitches.) As you bring the second string into tune with the first, the beats get slower & slower until they finally disappear. Violinists may know that when you play two notes a perfect major third apart, you can sometimes "feel" a third note that results from their interference pattern; it's an incredibly sensitive phenomenon. Well, the Korg wasn't intended to capture the pitch of two notes that are slightly off from each other, but the needle did shift up as I tuned the flat note up, and could distinguish when the two notes were exactly right and the beats disappeared. That, is sensitive indeed, believe me.
As a singer, I'm quite good at hitting notes, e.g. I've got the ability to sing next to someone else... e.g. a quarter tone above them or below them (try it -- most people can't do it) but the Korg is so sensitive, that I defy anyone to sing a note so precisely that the needle rests precisely in the center... that's really a description of how sensitive it is, not how off-pitch a singer I can be! Believe me, this device is quite sensitive.
Various other things:
There is a groove embossed in back into which you can insert an old credit card that will make it stand up -- useful, but if it collapses and the card falls inside the piano...
The model I bought in 2008 was made in Vietnam. That was a first for me, and I'm glad to see it.
More expensive Korg models will let you adopt different tunings other than well-tempered. But would I ever re-tune a piano non-temperered? Highly doubtful, and if I ever really need to, then I'll buy the more expensive Korg.
The Korg can also play a tone, a synethesized single-pitch that sounds like a sine wave, on any note. Useful for tuning a violin etc., and the pitch is more reliable than a tuning fork (beware of cheap tuning forks.)
This Korg model doesn't act as a metronome; others do. I haven't used a metronome since I was a kid learning to keep a consistent beat, and I don't believe any musician should ever use a metronome... unless if they need to play at a specific pace for a commercial recording or something that needs precise timing. (Metronomes stifle proper musicality.) Think carefully, and I seriously doubt you'll ever want a portable metronome in a Korg device like this. So I believe for 97% of shoppers, this is the item for them, as it was for me.
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