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Old 13th August 2019, 04:49 AM   #1
vkung is offline vkung  Canada
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Default PARTTIME AUDIOPHILE - SPARKLER AUDIO

PARTTIME AUDIOPHILE - REVIEW BY JOHN RICHARDSON

Sparkler Audio Spiral, Ether | Review | Part-Time Audiophile
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Old 13th August 2019, 06:21 AM   #2
abraxalito is offline abraxalito  United Kingdom
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Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though...
Very interesting to see a CD player using the TDA1543. As the partnering 7W integrated amp has a 'current mode' input, what's its current sensitivity (or transresistance if you prefer)?
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Old 13th August 2019, 07:08 AM   #3
vkung is offline vkung  Canada
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model S502i ― for current-mode signaling
Input: RCA jack (unbalanced), current-mode (0Ω) 2, voltage-mode (680Ω) 1
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Old 13th August 2019, 07:12 AM   #4
abraxalito is offline abraxalito  United Kingdom
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Thanks for that - do I take it that 'zero ohms' means the input's the -ve input pin on an I/V opamp?

Incidentally 'voltage mode' looks a lot too low impedance at 680ohm.

No indication then how much current input is needed to drive the amp to full power?
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