Octave HP 300 SE Tube Preamplifier
The HP 300 SE is Octave’s reference tube preamplifier — built in Karlsbad, Germany to the standard Andreas Hofmann has been applying to his amplifiers for thirty years. The external power supply is not an accessory or an upgrade option. It is part of the design: separating the power circuitry from the sensitive audio stage eliminates the primary source of noise in a preamplifier chassis and raises the noise floor to a level that most tube preamps do not approach. Silver finish. The combination of German build quality, external PSU, and Octave’s circuit refinement makes this a long-term piece — the kind you stop replacing.
*Stock Photos Used
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Return Policy
Return Policy
We offer a 3-day return window on all purchases. Returns made to a credit or debit card will incur a 5 percent processing fee. Shipping costs, both to and from, are the responsibility of the customer if applicable.
After the 3-day window and up to 3 weeks from the date of purchase, items may still be returned, subject to a 20 percent restocking fee.
For shipped orders, customers must notify us within 3 days of receiving the item to initiate a return. Once the item is received back in the same condition it was sent, we will issue a refund minus all shipping charges and a 5 percent credit card processing fee.
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The HP 300 SE is Octave’s reference tube preamplifier — built in Karlsbad, Germany to the standard Andreas Hofmann has been applying to his amplifiers for thirty years. The external power supply is not an accessory or an upgrade option. It is part of the design: separating the power circuitry from the sensitive audio stage eliminates the primary source of noise in a preamplifier chassis and raises the noise floor to a level that most tube preamps do not approach. Silver finish. The combination of German build quality, external PSU, and Octave’s circuit refinement makes this a long-term piece — the kind you stop replacing.
*Stock Photos Used
8.5/10 - Excellent Condition