New coda bow rehair
Good day to you good musicians:
I have a carbon fibre Coda Diamond violin bow and I loved the sound of this bow until I got it re-haired today for the first time. I never got a bow rehaired before so I don't know what to expect. The sound dramatically has changed to a mellow dampened sound instead of loud and lively sound that it had before. I tried more rosin with little change in sound. Does the hair need time to adjust under pressure to settle down and produce the sound as before or is there a problem with the rehairing?
Any suggestions would be appreciated. Thank you.
Did they rehair it with more hair than it had before? If so, that could be the reason.
to rosin a newly rehaired bow you need to score the rosin with a sharp knife, make repeated 45' scratches all the way across and close together, then 45' the other direction so you have an x pattern of scratches, then holding the rosin upward so the rosin particles don't fall off the rosin, rosin the bow for about 2 min, then repeat the process repeating the scratching, this should be enough.
What Andrew Victor said about it having more hair than before.
There are so many factors in a rehair that can affect the sound and feel of a bow. Quantity of hair, quality of hair, hair tension, starting the hair with rosin. I recently wrote an article on rosin and about starting new hair with rosin on my blog at: https://adbowsllc.com/2018/09/25/all-things-rosin/ also on my site, I have an article on what to check for after getting back a rehair. If you continue to have issues with the bow, you should bring it to the attention of whoever did it. Most archetiers are happy to make things right at no additional cost and would appreciate your feedback.
I had my Coda Classic violin bow rehaired within a year or two after i acquired it 20 yeas ago. When I saw that it was rehaired with noticeably less hair than it had previously I went back to the bow tech who told me it would play better (i.e., it had originally had too much hair) - and indeed it did.
Thank you Andrew, Lyndon, George and Anthony for spending time to answer my question. Yes my bow originally had much less hair and it sounded great. So I think you all are correct, the issue might be that there are too much hair on the bow. However, as suggested, I will try scoring the rosin and rosining for 2 minutes and see if that will change the sound before trying to take hair off.
If you're going to take hair off, make sure to cut the strands individually near the ferrule and the tip. Don't pull the hairs off! Pulling them diminishes the overall bundle at the ends and depending on how much hair you remove could cause the wedge at the tip or the spreader at the frog to come loose or hairs to start falling off. Always cut the hair, don't pull it!
UPDATE: I heavily rosined the bow and it made a huge difference and I also removed 5 strands of hair from each side as suggested by Victor. Problem is totally resolved. I got the sound I wanted back. Thanks a million everyone. I am so happy.
I've experienced an episode about this two years ago when I bought a bow from the principle second violinist of one of our pro orchestras. He inherited it from his father who had been a professional violinist himself, and used it as his primary bow for more than a decade after university, then moved up to a Lamy, and finally wanted to get rid of it since he meanwhile owned four bows superior to it. He told me that once back then he thought it had a great sound, but experienced a big sound degradation over the years he couldn't explain, although he had a rehair some years ago and hadn't played it much since. For this I got it for very cheap, although it's not the best but a fine work of a reknown mid 20th century French bowmaker, whose bows sell in the 3-8k zone. (After a short negotiation I got it for 450 actually...) I loved it's handling, but it sounded somehow muffled.
Let me make this as clear as I can.
It would be easy to assume that the best value in a rehair is a bow that comes back with the most hair. But it just doesn't work that way. Too much hair dampens the vibration of the string.
Andrew and David - both perfectly right. I completely overread that "from the sides". Not only for playability, but by this the bow could warp and suffer damage.
Removing hairs after getting a rehair defeats the whole purpose of getting one in my opinion. The problem probably is you didn’t put enough rosin on. You have to rosin a newly rehaired bow for a good 2-3 minutes and play on it for a few hours to break it in.