PHATLab Sassy Manuel utilisateur
PHATLab Audio
Sassy
Single-Ended Triode / Solid-State
Hybrid Portable Headphone Amplifier
User’s Manual
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Congratulations and thanks for choosing PHATLab’s single-ended triode/Solid-State hybrid amplifier
Sassy as companion of your premium headphones. Sassy is one of a kind amplifier based on directly
heated triode and solid-state output stage to provide unprecedented musicality and driving
capability for a wide range of headphones up to 600-ohm impedance. Sassy is based on pure analog
design and rugged for you daily usage. When paired with top-notched music source, you are ready
to enjoy sensational music performance as on best single-ended stereo system.
Features
Directly heated triode with single-ended circuit topology
High power full discrete direct energy solid-state output stage
Up to 20V and 1A output capability
Zero global feedback design
Hand selected military grade subminiature valve JAN6418
Military and audio grade passive components
Recommended for headphones with 30 –600 ohm impedance
Instant-on without warm up time
5V micro-B USB charging port
Over 10-hour operation on battery and fully charge within 3-hour
Contents
Precaution
Front Panel
Back Panel & Display
Connections
Playback & Operations
Specifications
Precaution
Sassy is designed with highest quality components and handcrafted to extreme precision for
extended service lifespan. Still, users are advised to be cautious on usage to avoid damage due to
carelessness.
1. Avoid high-G force shock on Sassy. Due to nature of vacuum tubes, extreme shock may lead to
microphonics noise at output
2. Microphonics is the ringing noise induced by vibrations of vacuum tubes. Though
countermeasure has been taken to minimize it. When happens, keep device steady for few
seconds and the noise shall fade away soon. If noise extended, keep device steady and turn
Sassy off then back on.
3. Please recharge battery before use. It takes 3-hour to fully charge when battery is empty
4. Sassy, same as all electronic devices, shall avoid high humidity or water-spill
5. Only use certified 5V USB charger and cable for battery recharge
6. When the sound quality is abnormal or distorted, do the following checklist
If low battery light is on, charge immediately
Lower the volume to avoid clipping or overload on amplifier
Front Panel
1. Power switch and Volume knob
2. 3.5Φphone jack for music input
3. 1/4”(6.3Φ) stereo phone jack for headphone output
4. Power on (green) and low battery (red) indicators
1
2
3
4
Back Panel
1. Micro-B USB port for 5V DC supply
2. Recharge indication (On during charging and Off after fully charged)
1
2
Connections
Connecting music source
Smartphone or DAP
Analog / phone out
Connecting headphone
Tip: Insert plug before power on can avoid microphonics ringing noise
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