Crossover adjustment for Alpine CDA-9857?
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Pro
Joined: May 2003
Posts: 687
Likes: 228
From: Kemah Texas
Crossover adjustment for Alpine CDA-9857?
I recently purchased a new Alpine CDA-9857 HU for my C5.
It has front, rear, and sub line outputs. I am using the front L/R and sub outs with an external amp. The question is whether the CDA-9857 has an internal crossover and how to select the xover frequency.
The presence of a sub out would suggest a crossover but the only sub parameter controls are on/off, level, EQ center frequency and bandwidth (Q) - nothing to suggest that when the sub is set to "on" there is a frequency split between the sub out and the front channels, what the xover frequency might be or how to adjust it.
The manual offers no spec, schematic, or explanation.
I'm going to check with Alpine in the morning but has anyone run into this issue - any thoughts? Thanks
It has front, rear, and sub line outputs. I am using the front L/R and sub outs with an external amp. The question is whether the CDA-9857 has an internal crossover and how to select the xover frequency.
The presence of a sub out would suggest a crossover but the only sub parameter controls are on/off, level, EQ center frequency and bandwidth (Q) - nothing to suggest that when the sub is set to "on" there is a frequency split between the sub out and the front channels, what the xover frequency might be or how to adjust it.
The manual offers no spec, schematic, or explanation.
I'm going to check with Alpine in the morning but has anyone run into this issue - any thoughts? Thanks
Pro
Joined: Sep 2005
Posts: 595
Likes: 38
From: San Jose CA.
I believe the eq is the crossover freq but I just adjusted mine by ear changing settings and seeing what sounds best as you adjust. Note that depending on the source: CD vs Tuner vs Sat vs Ipod, the sub response will change, sometimes dramatically with the same settings.
Originally Posted by tomlink
I recently purchased a new Alpine CDA-9857 HU for my C5.
It has front, rear, and sub line outputs. I am using the front L/R and sub outs with an external amp. The question is whether the CDA-9857 has an internal crossover and how to select the xover frequency.
The presence of a sub out would suggest a crossover but the only sub parameter controls are on/off, level, EQ center frequency and bandwidth (Q) - nothing to suggest that when the sub is set to "on" there is a frequency split between the sub out and the front channels, what the xover frequency might be or how to adjust it.
The manual offers no spec, schematic, or explanation.
I'm going to check with Alpine in the morning but has anyone run into this issue - any thoughts? Thanks
It has front, rear, and sub line outputs. I am using the front L/R and sub outs with an external amp. The question is whether the CDA-9857 has an internal crossover and how to select the xover frequency.
The presence of a sub out would suggest a crossover but the only sub parameter controls are on/off, level, EQ center frequency and bandwidth (Q) - nothing to suggest that when the sub is set to "on" there is a frequency split between the sub out and the front channels, what the xover frequency might be or how to adjust it.
The manual offers no spec, schematic, or explanation.
I'm going to check with Alpine in the morning but has anyone run into this issue - any thoughts? Thanks
