# Got ARC X in group by - should I use it with my MTM Mark 1's? **URL:** \ **Category:** Recording\ **Created:** [May 16, 2026, 1:28pm UTC](https://forum.ikmultimedia.com/t/got-arc-x-in-group-by-should-i-use-it-with-my-mtm-mark-1s/321 "2026-05-16T13:28:51Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![dougs.ik](https://avatars.discourse-cdn.com/v4/letter/d/8797f3/32.png) [@dougs.ik](https://forum.ikmultimedia.com/u/dougs.ik)\ **Post date:** [May 16, 2026, 1:28pm UTC](https://forum.ikmultimedia.com/t/got-arc-x-in-group-by-should-i-use-it-with-my-mtm-mark-1s/321/1 "2026-05-16T13:28:51Z")
Does it make any sense to use ARC software when I’ve already done the MTM Mark 1 built in ARC? Thanks in advance for any advice on this ---
**Author:** ![Solidtrax](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.ikmultimedia.com/solidtrax/32/246_2.png) [@Solidtrax](https://forum.ikmultimedia.com/u/Solidtrax)\ **Post date:** [May 19, 2026, 8:13am UTC](https://forum.ikmultimedia.com/t/got-arc-x-in-group-by-should-i-use-it-with-my-mtm-mark-1s/321/2 "2026-05-19T08:13:35Z")
Would be nice to have a standpoint from @Peter-IK on this indeed. My assumption is that you better measure your MTM’s first - and then do the ARC software measurement. Since the MTM mk1 - unfortunately - are not supported. 😕 ---
**Author:** ![Peter-IK](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.ikmultimedia.com/peter-ik/32/39_2.png) [@Peter-IK](https://forum.ikmultimedia.com/u/Peter-IK)\ **Post date:** [May 19, 2026, 12:38pm UTC](https://forum.ikmultimedia.com/t/got-arc-x-in-group-by-should-i-use-it-with-my-mtm-mark-1s/321/3 "2026-05-19T12:38:54Z")
That is correct technically that you can’t run ARC X **on-speaker correction** on iLoud MTM MK1 but the software will work as a plugin if you want the advanced ARC X features you see on the [ARC X web page](https://www.ikmultimedia.com/products/arcx/utm_source=ikforum&utm_medium=link&utm_campaign=arcx). For system-wide on-speaker correction you could either use ARC Studio or iLoud Sub for full ARC X with any speakers including iLoud MTM MK1 or you can use the calibration built in but that is not ARC X technology. ---
**Author:** ![Solidtrax](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.ikmultimedia.com/solidtrax/32/246_2.png) [@Solidtrax](https://forum.ikmultimedia.com/u/Solidtrax)\ **Post date:** [May 19, 2026, 1:06pm UTC](https://forum.ikmultimedia.com/t/got-arc-x-in-group-by-should-i-use-it-with-my-mtm-mark-1s/321/4 "2026-05-19T13:06:47Z")
Ok, great, and what would be the recommendation if one has MTM MK1 and the iLoud Sub? First MTM onboard calibration and then the calibration on the iLoud Sub @Peter-IK ? ---
**Author:** ![Peter-IK](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.ikmultimedia.com/peter-ik/32/39_2.png) [@Peter-IK](https://forum.ikmultimedia.com/u/Peter-IK)\ **Post date:** [May 19, 2026, 2:05pm UTC](https://forum.ikmultimedia.com/t/got-arc-x-in-group-by-should-i-use-it-with-my-mtm-mark-1s/321/5 "2026-05-19T14:05:54Z")
You don’t need to do the MK1 on-board calibration if you are using iLoud Sub with them connected. The ARC X measurements that you can load onto iLoud Sub will suffice. ---
**Author:** ![dougs.ik](https://avatars.discourse-cdn.com/v4/letter/d/8797f3/32.png) [@dougs.ik](https://forum.ikmultimedia.com/u/dougs.ik)\ **Post date:** [May 19, 2026, 2:51pm UTC](https://forum.ikmultimedia.com/t/got-arc-x-in-group-by-should-i-use-it-with-my-mtm-mark-1s/321/6 "2026-05-19T14:51:30Z")
I don’t have an iLoud Sub but have thought about it. If I did it would allow me to store ARC X calibrations? EDIT - only saw post above this one - didn’t notice @Solidtrax had joined thread. To summarize: I should stick with the MTM Mk1 onboard ARC calibration unless I add ARC Studio or the iLoud Sub