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Author Topic: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance  (Read 3123 times)

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Offline voltronic

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Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« on: February 12, 2017, 06:03:43 PM »
After purchasing a Rycote Duo-Lyre 68 to hold a stereo mounting bar, I was surprised to find how much stiffer / less compliant it is than the individual lyres even though the shore rating is rather close to the 62-shore single lyres I was using.  I reached out to Simon Davies at Rycote, and he gave me a detailed reply and also agreed to let me post his responses here.

Here is Simon's explanation for the difference between the single and duo lyres (emphasis mine):

Quote
The single Lyre & Duo-Lyres have many different parameters within their design that allow us to control the overall compliance of the suspension. Shore-hardness is one, and probably the easiest to measure given that it's the material used that sets the hardness. However the difference between the single Lyre & Duo-Lyre isn't just the shore hardness, it's the overall thickness of the Lyres used on the Duo version. As their primary role is for a cantilevered shock-mount, the Duo-Lyres are much thicker than the single Lyre at key points. This means the point at which the Lyre "swings" to allow the compliance up & down becomes much stiffer. This is needed if there is front loading (ie a foam or slip-on windshield). The front/back compliance of the 68-shore Duo-Lyre (the critical compliance for a shotgun or cardioid mic) is actually very close to that of the 72-shore single Lyre - so will indeed feel much stiffer than the softer 62-shore singles.

And from a later reply:

Quote
I'm glad that helped. I'm more than happy for you to share anything I've written. If anyone has any questions, on of my small team will be able to help (here's a link: http://rycote.com/support-form/)

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Offline ArchivalAudio

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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #1 on: February 13, 2017, 01:45:11 AM »
Thanks that's interesting and goo d to know.
So far I really like my DIY Rycote lyre shock mount w/ rapid release
Some day I may try a duo lyre..
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Offline F.O.Bean

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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #2 on: February 13, 2017, 11:12:59 PM »
I IMMEDIATELY noticed the difference in stiffness between the single vs. Duo Lyre's, since I switched from the Grey 82 Shore Single Lyre's, to the Black & Grey Duo Lyre's!

After owning both the INV6 & INV6HG's [first], and now the INV-HG mkiii's & SRS Duo Lyre Bases with the Grey & Black Duo Lyre's, I MUCH prefer the stiffer Duo Lyre setups! BUT, I ONLY use my Duo Lyre's to mount 2 & 4 channel setups, and NOT individual mics. So it depends on what you're running to determine which setup you need IMO!

If you're running stereo & 4 channel setups like me, I would just get the INV-HG mkiii or SRS Duo Lyre Base from the get-go, and be 100% DONE with it :) However, if you're running individual mics, I'd definitely consider the 72 Shore Black or 82 Shore Grey SINGLE Lyre's for each mic. Or a single Black/Grey Duo Lyre setup for each individual mic, depending on it's weight capacity! Naks are heavy as shit with their internal batteries, so they might need a Duo Lyre for EACH mic FWIW ;)
« Last Edit: February 13, 2017, 11:16:13 PM by F.O.Bean »
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Offline voltronic

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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #3 on: February 14, 2017, 07:50:10 AM »
Taking Mr. Davies' explanation and looking at the range of Lyres, it would seem that they progress as follows from softest / most compliant > stiffest / least compliant:

Single Lyre 62 > Single Lyre 72 > Duo-Lyre 68 > Single Lyre 82 > Duo-Lyre 72




NOTE: The URL in the image no longer takes you to this info after the terrible website redesign.  You may find the Lyre info here.
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Offline waltmon

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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #4 on: February 14, 2017, 09:08:18 AM »
Their LD shock mounts look pretty interesting as well.
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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #5 on: February 14, 2017, 12:23:35 PM »
Taking Mr. Davies' explanation and looking at the range of Lyres, it would seem that they progress as follows from softest / most compliant > stiffest / least compliant:

Single Lyre 62 > Single Lyre 72 > Duo-Lyre 68 > Single Lyre 82 > Duo-Lyre 72




NOTE: The URL in the image no longer takes you to this info after the terrible website redesign.  You may find the Lyre info here.

I know that is the shore ratings, but IMO the Black Duo Lyre is stiffer than the 82 shore lyres ;) I just went from the 82 shore Grey Single Lyre's, to the Black & Grey Duo Lyres, and the Black Duo Lyre's are DEF stiffer than the 82 shore Grey single lyre's :) Also, the Black & Grey Duo Lyre's seem about the SAME stiffness to me and in my hands. I know the Grey Duo Lyre is supposed to be stiffer, but if it is, I sure don't notice it!

Their LD shock mounts look pretty interesting as well.

I wouldn't run ANYTHING but those for LD's if I owned them ;)
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Offline jmitchell

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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #6 on: February 15, 2017, 10:43:43 AM »
The light grey dual lyre seems to on backorder from a number of places.  I'm waiting on another for my SRS ORTF Nak mount
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Offline voltronic

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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #7 on: February 15, 2017, 03:05:11 PM »
The light grey dual lyre seems to on backorder from a number of places.  I'm waiting on another for my SRS ORTF Nak mount

The separate lyres are often a special order item.  The 62 Lyres were for me, and it looks like the 82 are most places.  72 is what comes standard with the INV-6 and INV-7.

Back before I ordered the 62 lyres, I contacted Redding Audio, who are the US distributor for Rycote.  They said that it is possible to purchase a set of INV series mounts with whatever Lyres you want; just contact them and let them know which retailer you'd like to purchase from and they would special order it.
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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #8 on: February 16, 2017, 08:57:39 AM »
Their LD shock mounts look pretty interesting as well.

I have a pair of the LD shock mounts that I used for a pair of AKG 414's and l still use with my Gefell UM-70's...

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Offline John Willett

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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #9 on: February 18, 2017, 12:55:22 PM »
Their LD shock mounts look pretty interesting as well.

I have a pair of the LD shock mounts that I used for a pair of AKG 414's and l still use with my Gefell UM-70's...

There is also a special Gefell version of the USM and USM-L available - thay have green Gefell buttons instead of the red Rycote ones and the L version has black lyres instead of red ones.  Price is about the same as the Rycote one and available from Gefell distributors.

This is the G-USM-L



For the Gefell UM 70, UMT 70S etc., the Rycote INV-7HG III is an excellent option - Håkan now do a special Pop Killer for this combination:-



This picture is the pre-production version of the Håkan P110 INV-7HG-V pop killer - the production version will be black.

« Last Edit: February 18, 2017, 12:58:27 PM by John Willett »

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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #10 on: March 27, 2018, 01:38:18 PM »
Thanks that's interesting and goo d to know.
So far I really like my DIY Rycote lyre shock mount w/ rapid release
Some day I may try a duo lyre..
Archival- do you have  a thread link or pictures of your single Lyre DIY? Thanks
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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #11 on: March 27, 2018, 01:58:08 PM »
This thread just reminded me that my dual lyres are too rigid.  Ugh, I still have to come up with a solution. 
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Offline voltronic

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Re: Rycote Single Lyres vs. Duo-Lyre Stiffness / Compliance
« Reply #12 on: March 28, 2018, 07:50:01 PM »
This thread just reminded me that my dual lyres are too rigid.  Ugh, I still have to come up with a solution.

What are you running?  I now have one pair of 72 lyres to run my stereo bar with the CM3s and it's the perfect amount of compliance.  This is replacing the Duo-Lyre which was much too stiff as I mentioned earlier.
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