OAD Ultrafidelity Padma Preamplifier Review: A New Era in Preamplification
When it comes to ultimate control and purity in your hi-fi system, the OAD Ultrafidelity Padma Preamplifier Review reveals how this masterfully engineered unit ushers in a new era of preamplification. As the beating heart of any high-end audio setup, a preamplifier must deliver precision, transparency and rock-solid stability. The Padma from OAD Ultrafidelity achieves all this and more, making it a must-hear model for discerning audiophiles.

Design and Build Quality
The Padma sports a fully CNC machined chassis of premium-grade aluminium, providing an inert and stable base that eliminates unwanted resonances. Available in striking silver or stealthy black, its minimalist styling complements any rack system while the robust construction ensures years of dependable performance. The inclusion of a premium-grade CNC remote control extends that level of precision to your fingertips.
Dual Balanced Line Stage
OAD Ultrafidelity has harnessed six years of experience since the CP1 to develop the Padma’s dual balanced topology. By operating two discrete all-transistor line stages in parallel, the Padma reduces noise by an additional 30% compared to its predecessor. This architecture delivers an unprecedented signal-to-noise ratio of >110dB A-weighted, effortlessly revealing micro-detail and delivering a blacker-than-black background.
Revolutionary Volume Control
At the heart of the Padma is a laser-cut, zero-induction resistor array offering 73 steps of attenuation at precise 0.5dB intervals, with a balance range of +/-6dB. Unlike traditional potentiometers or stepped attenuators, this design maintains constant output impedance and near-zero Johnson noise at every level. The volume sensor is purely positional – the audio signal bypasses it entirely – while a whisper-quiet stepper motor drives the control knob for that tactile, analogue feel. The result is glitch-free operation and impeccably matched left-to-right channel balance.
Dual Mono Layout & Audio Purity
With a fully balanced signal path from input to output and a strict dual mono layout, the Padma virtually eliminates crosstalk. Minimal component count, all comprising low-noise, zero-induction resistors, ensures that your music echoes through space surrounded by silence. Image stability and depth are exceptional, making this preamplifier ideal for revealing the true character of high-resolution recordings.
Key Specifications
- Line Level Inputs: 3 Balanced and 6 Unbalanced
- Line Level Outputs: 1 Balanced, 1 Unbalanced + Home Theatre Preouts
- Gain Range: –63dB to +9.7dB
- Frequency Response: 0Hz – 650kHz (–3dB @1.8Vrms)
- Max Output: >20V RMS
- Signal-to-Noise Ratio: >110dB (A-weighted)
- Dimensions: 438 × 126 × 353mm
- Weight: 13kg
Who Should Consider the Padma?
If you’re an audiophile seeking the ultimate in transparency, control and build excellence, the Padma is for you. It’s perfectly suited to those who run balanced source components, high-end DACs or vinyl front ends, and demand uncompromising sonic performance. Whether you’re refining a reference-level two-channel system or integrating into a home theatre rig, the Padma adapts with ease.
Speak with Our Team
Curious to hear the difference the Padma can make in your system? Our specialists at The Audio Tailor are ready to guide you through its features and ensure it aligns with your setup and budget. Call us on 1300 308 711 or email sales@theaudiotailor.com.au to arrange a consultation. For full product details visit the Padma Preamplifier Product Page.
Final Thoughts on the OAD Ultrafidelity Padma
The OAD Ultrafidelity Padma Preamplifier sets a new benchmark for analogue front ends. Its dual balanced circuit, revolutionary volume control and rock-solid build quality combine to elevate every aspect of music playback. If you’re chasing that rare combination of finesse, power and purity, the Padma delivers in spades.
Pros & Cons
- Pros: Ultra-low noise floor; precision laser-cut attenuator; superb build quality; fully balanced dual mono design; seamless integration.
- Cons: Premium price point may challenge tighter budgets; weight of 13kg requires sturdy shelving.