Crossover install on Magnepan 1.7i

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thingone62

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Re: Crossover install on Magnepan 1.7i
« Reply #20 on: 15 Dec 2024, 02:14 pm »
Interesting - I have been playing with trying to get my MMG's (which originally came with the 2.2mH and 12 uf cap) to sound right (like Quads).
I have tried various "cheap" caps such as Solen, ClarityCap, Jantzen. 

Using the same values of caps and switching between brands, the Solens (which are all really old (and therefore have been broken in for 20 years))  sound great - much more detail and "bite" and "attack" the HF than the others.

The Clarity Cap PX sound "slow" and "hollow" and "syrupy" and muffled.

The Jantzen Standard Z-caps sound "aluminum-foily" and "boxy" and sort of "springy" (weird).

Anyway - I have not gone to any effort to "break in" the new caps (Clarity and Jantzen).  How would one go about breaking them in "on the bench"?  What would the benefits be?

My latest iteration is a big coil (like 3.0mH) on the LF panel and a 12/db oct on the HF producing a big "HOLE" in the midrange - my MMGs at least need a HUGE cut somewhere around 6,7,8,9 hundred Hz, and doing that does it. 

corndog71

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Re: Crossover install on Magnepan 1.7i
« Reply #21 on: 15 Dec 2024, 07:46 pm »
The only clarity caps worth using are the MR/CMR.  At least for full range duty.  For mids and below the CSA series are good.

Edit: I like their new PUR series too.
« Last Edit: 19 Jan 2025, 06:57 pm by corndog71 »

Danny Richie

Re: Crossover install on Magnepan 1.7i
« Reply #22 on: 24 Dec 2024, 07:37 pm »
More importantly than just a value for value parts upgrade is an upgrade that fixes the response issues and keeps the drivers from playing on top of each other.

Getting those steal parts and fuse, on the back panel, out of the signal path goes a long way too. 

Ohappyday

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Re: Crossover install on Magnepan 1.7i
« Reply #23 on: 18 Jan 2025, 08:07 am »
Great to find this step by step guidance with photos on upgrading the Maggie 1.7i crossover.
What a kind information!!
I wished a lot, but never had a courage to do it for myself.
Now with this guidance, I seem to manage do do it.
As a further assistance, I wonder if anyone could provide a tip as to how to remove the aluminum side stiles.
That seems a last hurdle in deciding the upgrade.
Thanks in advance,
Steve

reyii

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Re: Crossover install on Magnepan 1.7i
« Reply #24 on: 16 Mar 2025, 05:03 pm »
As a further assistance, I wonder if anyone could provide a tip as to how to remove the aluminum side stiles.
That seems a last hurdle in deciding the upgrade.
Thanks in advance,
Steve

they just pop off, try it with your bare hands, is not that difficult.