Zaph ZD5: Crossover Component Checklist - diyAudio
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Old 5th August 2008, 11:49 PM   #1
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Question Zaph ZD5: Crossover Component Checklist

Hi,

Just wanted to get another set of eyes on my crossover component list before I order.

I have decided to use Jantzen Audio caps and coils and Eagle resistors.

Qty Unit Value DCR Substitue DCR Manf. Type
2 R0 5 ohm Eagle
2 R3 2.5ohm Eagle
2 R12 4 ohm Eagle
2 R19 6 ohm Eagle
2 R22 4 ohm Eagle
2 L2 0.25 mH 0.2 0.22 Jantzen Audio
2 L4 0.5 mH 0.35 0.33 Jantzen Audio
2 L8 0.5 mH 0.35 0.33 Jantzen Audio
2 L11 1.0 mH 0.5 0.48 Jantzen Audio
2 L14 1.8 mH 0.3 0.42 Jantzen Audio
2 L18 0.15 mH 0.1 0.16 Jantzen Audio
2 L21 0.3 mH 0.3 0.26 Jantzen Audio
2 C1-1 3.3 uF Jantzen Audio Superior
2 C1-2 1.0uF Jantzen Audio Superior
2 C6 12.0 uF Or 12.2* Jantzen Audio Crosscap
2 C7 12.0 uF Or 12.2* Jantzen Audio Crosscap
2 C10 100.0 uF Jantzen Audio Crosscap
2 C17 4.7 uF Jantzen Audio Superior
2 C20 80.0 uF 82.uF Jantzen Audio Crosscap


* Using a 10uf and 2.2uf Superior instead of a 12uf Crosscap.

All coils and some caps have minor value changes, how will this effect the sound?
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Old 6th August 2008, 01:27 AM   #2
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I could also use Crosscaps for all the caps which brings the cost down by $100
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Old 6th August 2008, 02:50 AM   #3
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Join Date: Jan 2002
Location: Wellington, New Zealand
The rule of thumb is as long as the difference in component value (capacitance or inductance/resistance) is within the tolerance - you are fine. After all - you could buy components with a +/-5% tolerance and they may be less accurate than a another component with a 1% change in value but only 2% tolerance.

Personally - I'd go with the crosscaps throughout. It really depends on whether you want to go all out for peace of mind, but Zaph recommends just basic poly capacitors for his designs. I'd guess if he really thought the fancy caps made a difference on a high end design like the ZD5 - he'd recommend it.

David.
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Old 6th August 2008, 03:01 AM   #4
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Sounds good to me, and it saves $100.

I've got the Ekta Grand to build next, which I will probably use the superior caps, just because of the cost of the speakers.
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Old 6th August 2008, 03:09 AM   #5
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Join Date: Jan 2002
Location: Wellington, New Zealand
I'm not familiar with the Etka Grande (is it a series design?) - if has any components with the same values as the ZD5 - you could always do a cap swap then and see if you can hear it in either speaker.

David.
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