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<blockquote data-quote="Doxquzme" data-source="post: 8922968" data-attributes="member: 689267">Well, not a country music fan per se, ( excluding some rap and re-bassed music), they utilize some of the cleanest, bass-strong recordings in the industry.Which leads me back to the Epicenters adding bass that isn&#039;t there and LOCs, or any equipment that utilizes AccuBASS: it&#039;s not nearly as much the genre as the recordings and the era limitations at the time/ERA the music was recorded in that limit/negate low-end output.It may also be a result of OEM head units limiting low-frequency output as volume goes up.They do different things for different reasons.Purpose:AccuBASS fixes bass loss (roll-off) at high volumes in OEM stereos. The Epicenter adds deep, sub-bass harmonics to music that lacks them (e.g., oldies, rock, metal).Operation:AccuBASS restores the bass that is there, but removed by the OEM radio. The Epicenter creates bass that isn&#039;t present.Frequency Range:AccuBASS generally operates in the 50–125 Hz range. The Epicenter focuses on 27–63 Hz.Usage Example (AccuBASS):You turn your factory stereo volume up, and the bass gets quieter (rolls off) compared to the mids/highs. AccuBASS triggers at a certain threshold to maintain consistent bass.Usage Example (The Epicenter):You are playing a song from the&nbsp; 1960s-1970s or a recording that sounds &quot;thin.&quot; The Epicenter adds synthetic sub-bass to create a &quot;chest-thumping&quot; effect.I would wager his issues are related to either the coils on one of the subs being wired out of phase (or it&#039;s got a polarity issue or damaged coil internally) or the two subs are wired out of phase, which has a dramatic effect on the bass output, and not in a good way.Will be interesting to see if the OP comes back and lets us know what the shop found.</blockquote>

[QUOTE="Doxquzme, post: 8922968, member: 689267"] Well, not a country music fan per se, ( excluding some rap and re-bassed music), they utilize some of the cleanest, bass-strong recordings in the industry. Which leads me back to the Epicenters adding bass that isn't there and LOCs, or any equipment that utilizes AccuBASS: it's not nearly as much the genre as the recordings and the era limitations at the time/ERA the music was recorded in that limit/negate low-end output. It may also be a result of OEM head units limiting low-frequency output as volume goes up. They do different things for different reasons. Purpose: AccuBASS fixes bass loss (roll-off) at high volumes in OEM stereos. The Epicenter adds deep, sub-bass harmonics to music that lacks them (e.g., oldies, rock, metal). Operation: AccuBASS restores the bass that is there, but removed by the OEM radio. The Epicenter creates bass that isn't present. Frequency Range: AccuBASS generally operates in the 50–125 Hz range. The Epicenter focuses on 27–63 Hz. Usage Example (AccuBASS): You turn your factory stereo volume up, and the bass gets quieter (rolls off) compared to the mids/highs. AccuBASS triggers at a certain threshold to maintain consistent bass. Usage Example (The Epicenter): You are playing a song from the 1960s-1970s or a recording that sounds "thin." The Epicenter adds synthetic sub-bass to create a "chest-thumping" effect. I would wager his issues are related to either the coils on one of the subs being wired out of phase (or it's got a polarity issue or damaged coil internally) or the two subs are wired out of phase, which has a dramatic effect on the bass output, and not in a good way. Will be interesting to see if the OP comes back and lets us know what the shop found. [/QUOTE]

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