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<blockquote data-quote="ChrisR" data-source="post: 7752957" data-attributes="member: 554633">Just finished the install of an all-Alpine system in my &#039;11 F150, INA-W910 HU, 2 PDX-F4 4 channel amps, Alpine 10&quot; subs and SPR-69 co-ax rear doors, Alpine SPR-60C components in the front.Have the system more or less tuned now and the one thing I can&#039;t seem to get past is the mid-range on the SPR-60C&#039;s in the front. It just seems edgy and harse at times. Depends on the recording. Yesterday I was listening to Allman Brothers Live At the Fillmore East and the lead guitar on a couple tracks was just brutal as far as mids. Using the G-EQ in the 910 HU, I was able to tone it down some, mostly in the 4-8KHz range using a 2db cut. Don&#039;t like doing that though. I am thinking of spending the $130.00 or so for the optional Alpine IMPRINT processor which is advertised as a cure for all SQ woes but before I do that, wanted to see if anybody else has experienced mid to upper mid-range problems and what you did about it. I do want to keep my system all-Alpine if possible. BTW, I am using the factory (Ford) wiring to the door speakers; wondering if that may be a contributing factor.</blockquote>

[QUOTE="ChrisR, post: 7752957, member: 554633"] Just finished the install of an all-Alpine system in my '11 F150, INA-W910 HU, 2 PDX-F4 4 channel amps, Alpine 10" subs and SPR-69 co-ax rear doors, Alpine SPR-60C components in the front. Have the system more or less tuned now and the one thing I can't seem to get past is the mid-range on the SPR-60C's in the front. It just seems edgy and harse at times. Depends on the recording. Yesterday I was listening to Allman Brothers Live At the Fillmore East and the lead guitar on a couple tracks was just brutal as far as mids. Using the G-EQ in the 910 HU, I was able to tone it down some, mostly in the 4-8KHz range using a 2db cut. Don't like doing that though. I am thinking of spending the $130.00 or so for the optional Alpine IMPRINT processor which is advertised as a cure for all SQ woes but before I do that, wanted to see if anybody else has experienced mid to upper mid-range problems and what you did about it. I do want to keep my system all-Alpine if possible. BTW, I am using the factory (Ford) wiring to the door speakers; wondering if that may be a contributing factor. [/QUOTE]

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