
Integration Upgrade for Reduction Phono Preamp
Now the benefits of increased dynamics, more quiet background, better bass control, more gain and a sense of better frequency extension can be had for the Reduction Phono Preamp. Four Camille Cascode Constant Current Sources (C4S) replace the stock plate load resistors, dramatically increasing the load impedance for approximately 60dB better Power Supply Ripple Rejection (PSRR) and the extraction of the full gain available from the tubes (up from about 36dB to about 40dB). The addition of a Zener shunt voltage regulator lowers the power supply impedance yielding a sense of increased extension of both bass and treble.
Note that this is for the Reduction Phono Preamp and not the Eros or Eros 2.
Pairs well with

Integration Upgrade for Reduction Phono Preamp
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
We start fulfilling orders as soon as they're received. We do what we can to ship orders within 3-5 business days, but depending on component lead times this may take a few weeks. We'll reach out if we think this will take longer than usual.
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Customer Support
For questions about your order or replacement manuals and parts, the chat feature on the site is the best place to start.
If you have technical support questions about your kit, we recommend joining us on the Bottlehead Forums.
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FAQs
Check out our FAQ page.
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Contact Us
Call us at 618-233-3223, email us at info@bottlehead.com, or join us on the Bottlehead Forums.
Additional details
More information
Product specifications
Gain:
Input Impedance:
Output Impedance:
Max Output:
Tube Complement:

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Just add tools
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