Design by Mr. K PPA - 01 Owner's Manual

Passive preamplifier

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Passive Preamplifier

Model No.: PPA - 01

Owners Manual

www.designbymrk.com

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Page 1 Passive Preamplifier Model No.: PPA - 01 Owners Manual www.designbymrk.com...
Page 2: Introduction Of The Passive Preamplifier
This makes the transformer volume very different. That explains why tube amplifier usually produce sound quality superior to that of solid-state amplifier. With 1x, 3x, 5x and 10x gain options, this PPA - 01 provides the following high built quality of sound:...
Page 3 Core), is used, and that makes this kind of 59 steps mechanical volume control switch special and the sound feature gorgeous. PPA - 01 is also an entirely passive design with literally zero extra power sources plugged in to the audio signal path, meaning: •...
Page 4: Table Of Contents
Table of Contents • Introduction of the Passive Preamplifier P.1 – 2 • Table of Contents • Important Safety Instructions • Special Design Features and Philosophies • Installation Instructions P.6 – 8 • Operations P.9 – 11 • Specifications P.12 – 13 •...
Page 5: Important Safety Instructions
Important Safety Instructions Note: Please read the following instructions carefully before operating your PPA - 01. • DO NOT connect this device to Power Amplifiers/Integrated Amplifiers with input impedance lower than 10kΩ, otherwise malfunctions will be led due to the minimum output impedance of 10kΩ...
Page 6: Special Design Features And Philosophies
Special Design Features and Philosophies • 59 Steps Autotransformer Conventional passive preamplifier usually uses a traditional VR- connected transformer with single input and output ports in the design. Our Passive Preamplifier however leads a special design by using only one 59 steps autotransformer. It is an ALL-IN-ONE design.
Page 7: Installation Instructions
Installation Instructions Please read through the following instructions for the first-time installation. 1. Placement Place the PPA – 01 near to the source, input or output components when connecting your Passive Preamplifier to the system. That can minimize the negative effects of long cable connections. 2.
Page 8 * Power Amplifier/Integrated Amplifier Applicable to both tube amplifier and solid-state amplifier. Type 2 Connections CD/Network player → PPA – 01 → Preamplifier → Power Amplifier * Power Amplifier/Preamplifier Applicable to both tube amplifier and solid-state amplifier. 4. Type 3 Connections CD/Network player →...
Page 9 3.2 Input Port Connections Connect the audio players output(Source Component)to your Passive Preamplifier input. With 3 different input ports(Port A, B and C), audio players can be freely to be connected, to the corresponding RCA (Red and White Ports). Audio players can be CD players, networking players, radio sets etc.
Page 10: Operations
Operations • Front Panel 1. Volume Control Switch The high-quality and machined knob allows up to 59 steps of absolute mechanical volume control, ranging from the lowest to the highest volume by turning from far left to far right. 2. Gain Control Switch Condition Make sure the VOLUME CONTROL SWITCH is selected to the LOWEST VOLUME before using this gain control...
Page 11 The special and unique gain control knob gives a selectable 4 choices of gain value. With the application of Magnetic Hysteresis from the coil in the 59 steps autotransformer (C Core), the PPA – 01 sound quality varies. Under 1x, 3x, 5x and 10x gain options, you can definitely experience superior build quality of sound at different volume levels, so as to achieve the best control.
Page 12 • Rear Panel 4. Source Inputs Receive outputs from audio players (Source Component), with 3 input ports choices (Ports A, B and C). 5. Preamplifier Output Receive inputs from output amplifier. 6. GND House GND This GND enables metal contact for wire connection. Audio GND This GND is RCA output ground connected.
Page 13: Specifications
Specifications • Transformer Core Type C Core Core Material Confidential • Voltage Steps 59 steps • Output Range Measuring Condition Connect output amplifiers with input impedance not lower than 10kΩ to avoid malfunctions, as the output impedance of this PPA – 01 is 10kΩ.
Page 14 • Audio Connections Inputs 3 RCA Outputs 1 RCA 1 HG, 1 AG • Overall Dimensions Width 350mm Depth 280mm Height 80mm • Weight Gross 6.8kg 4.0kg • Series Type Stepped Attenuators/ 15A Resistance Taper (For 1X Gain) P.13...
Page 15: Warranty And Contact Details
Warranty and Contact Details The PPA – 01 is covered by a lifetime warranty plan from the date of purchase under normal circumstances. This lifetime warranty plan expires only when all our manufacturing components are exhausted. But our company guarantees the availability component supply for no less than two years from the date of you purchase your unit.
Page 16 If you believe you need warranty service, please contact us through the following means: Telephone: (+852) 2889 1924 Fax: (+852) 2889 2493 E-mail: info@designbymrk.com Facebook: https://www.facebook.com/Design-by-Mr-K- 386812875128890 Website: www.designbymrk.com Preliminary instruction manual. Design by Mr. K Data changed without notice. P.15 Version 1.3 Date: 04 Feb., 2021...