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Thomastik RO41 Rondo Cello A String 4/4


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    Thomastik Rondo for Cello

    Clear and velvety

    The Thomastik-Infeld RONDO® product line is defined by a very clear, powerful and direct sound with a velvety tone color. Cello strings are often associated with the throaty singing of a tenor. However, RONDO® strings sound closer to the chesty voice of a baritone, giving the cello a full, rich and deeper sound. These sound characteristics are also what set the strings apart from other, well-known strings and alternatives within the current Thomastik-Infeld range.

    Smooth transition

    The NO.RO400 set is very homogeneous. The strings are matched in such a way that the tonal and haptic transition between the strings is hardly noticeable.

    The present D-string

    Cellists frequently complain that the sound and volume of D-strings deteriorates after a short time. This was taken into account in the development of this set, and the RONDO® D-string was deliberately manufactured to emanate a present sound. This makes it a stable bridge between the G- and A-string! The entire set is very powerful and the strings’ sound fills the room even when little bowing pressure is applied.

    Fast response

    RONDO® strings have a fast and precise response that is not aggressive.

    For professionals

    Thomastik-Infeld RONDO® NO.RO400 have been tested by over 500 professional cellists worldwide on instruments of the famous old and new masters. The product offers lots of radiance, color, volume and projection, especially for new builds. The strings are very present and masculine with an intense depth of sound, meaning they are more likely to meet the demands of professionals and advanced players. For beginners, enthusiasts and those looking for a more subdued sound character, we recommend Thomastik-Infeld VERSUM® strings.

    Available Sizes | Gauges

     4/4 | medium


    Click here to download the Thomastik guide / glossary of terms


    Cello 4/4 vibrating string length 70cm | 27.6"

    NR. Core Material Outer Material Tailpiece End   kg lb Peg End
    DTRO41 a la I Carbon Steel Multialloy Wound Br. B              18.8 41.4           
    DTRO41XP a la I Carbon Steel Multialloy Wound Br. B              18.1 39.9           
    DTRO42 d re II Carbon Steel Multialloy Wound Cp. B              14.3 31.5           
    DTRO43 G Sol III Carbon Steel Tungsten/Chrome Wound Nk. CB              14.3 31.5           
    DTRO44 C Do IV Carbon Steel Tungsten/Chrome Wound Br. CB              13.8 30.4           
    SET NR. DTRO400                  

    DTRO41; DTRO42;
    DTRO43; DTRO44

    MEDIUM 61.2 kg | 134.8 lb                  

    Click here to view full Rondo Brochure

    Click here to download the Thomastik guide / glossary of terms

    Download the full comprehensive Thomastik catalogue

    Shipping Policy


    Direct to Consumer Delivery Policy

    What GIG Guitars Does:

    • GIG Guitars will process an item for a direct to consumer order. This can be shipped to a business or residential address using either Australia Post E-Parcel or StarTrack Express or collected by a courier selected by GIG Guitars on behalf of the Purchaser.
    • GIG Guitars will provide the Consignment details to the nominated email address.

    What we don’t do

    GIG Guitars takes no responsibility for lost or stolen goods.

    Australia Post and Star Track Express have their own policy regarding this procedure. We recommend you visit their websites at for a better understanding of their proof of delivery policy.

    • As GIG Guitars are delivering on behalf of the purchaser, insurance of the goods is the responsibility of the purchaser. If any goods are damaged in transit, the store takes no responsible for the item and all logistics of return and it’s cost of re-supply.

    If you require GIG Guitars to insure the goods on your behalf, please request this on the Purchase order for each Direct Ship order.

    An additional insurance charge will be applied to the invoice.

    • All goods lost or stolen, after being left at the consumer’s premises, is not the responsibility of GIG Guitars.
    • GIG Guitars will not be responsible for following up delivery details, or any delivery discrepancies, this is the responsibility of you, the purchaser. We will only provide a consignment tracking info.

    Details of your parcel can then be viewed on the Courier Website, using the Consignment number provided by GIG Guitars. If the matter cannot be resolved easily by tracking the Consignment Number from the relevant tracking Websites, GIG Guitars will endeavor to resolve it.

    Return Policy

    Conditions of Returns

    Returnable items are subject to the following…

    The product is faulty

    The product is not the same product that was ordered

    The product does not perform to the Manufacturers specifications

    The product has been damaged in transit (please take note of all parcels immediately upon receiving from postage or courier and where possible take a photo of damage)

    Items must be returned within 14 days

    Items must be returned with original packaging and supplied accessories (ie; power supply, manuals)

    Items must be returned as new, and free of scratches or marks

    A copy of original receipt must accompany your return

    You must contact the store before sending back any items

    Returns may not be granted for products such as Print Music (due to Copyright Laws), Kazoos, Tin Whistles, Recorders (due to hygiene reasons)

    Returns will not be granted due to a customer’s change of mind, or ordering the wrong product.

    All faulty items will be directed back to suppliers for warranty assessment. This is no guarantee that a product will be replaced, repaired or refunded.

    Contact Us

    Contact Us


    Call Rico on 0488200801

    Thomastik RO41 Rondo Cello A String 4/4