- THX
- THX CERTIFIED AV RECEIVERS
THX CERTIFIED AV RECEIVERS

Only the very best AVRs can stand up to the rigorous testing inside THX labs. Our engineers analyze everything from noise levels and distortion to frequency response and bass management in over 1,000 laboratory tests. THX Certified AVRs recreate high impact cinema sound and best-in-class audio fidelity.
WHAT WE TEST
FEATURED ON ALL CERTIFIED RECEIVERS, THX LISTENING MODES MAKE IT CONVENIENT TO HAVE ONE SPEAKER SET UP FOR MOVIES, MUSIC AND GAMES.
POWER OUTPUTPower output is tested to ensure the receiver accurately plays source material at THX Reference Level in every input and mode and at every sampling rate for all possible playback combinations selected by the listener.
BASS MANAGEMENTTHX requires an 80Hz crossover point in the setup menu to ensure proper bass management in ever y THX Certified AVR. This setting confirms that the subwoofer handles low frequencies, freeing up the loudspeakers to handle mids and highs.
SIGNAL-TO-NOISE RATIOTHX tests the signal-to-noise ratio to ensure the unit is designed to have low noise performance with very little to no audible hiss from the speakers.
AV RECEIVER FEATURES
FEATURED ON ALL CERTIFIED RECEIVERS, THX LISTENING MODES MAKE IT CONVENIENT TO HAVE ONE SPEAKER SET UP FOR MOVIES, MUSIC AND GAMES.
RE-EQMany movie soundtracks are mixed in studios for playback in large cinema auditoriums with an array of speakers. When played on home systems, they may appear abrasive and edgy. Re-EQ establishes a more accurate tonal balance when enjoying movies in your home.
TIMBRE MATCHINGYour ears hear different tonal qualities in sounds coming from different directions. Timbre Matching restores the frequency balance between your front and surround speakers ensuring seamless and smooth panning between the front to back of the room.
BOUNDARY GAIN COMPENSATIONSitting near a wall may result in distorted bass response. BGC corrects the way low frequency sound is perceived when seated near a wall. This results in a more accurate bass response.
THX LOUDNESS PLUSTHX Loudness Plus™ is a volume control technology featured in THX Certified Dominus, THX Certified Ultra and THX Certified Select AV Receivers, and preamplifiers that automatically adjusts the front-to-back speaker level relationship as you turn the volume down. With THX Loudness Plus, home theater audiences can now experience the rich details of surround sound at any volume level.
THX LISTENING MODES
FEATURED ON ALL CERTIFIED RECEIVERS, THX LISTENING MODES MAKE IT CONVENIENT TO HAVE ONE SPEAKER SET UP FOR MOVIES, MUSIC AND GAMES.
THX CINEMA LISTENING MODERecreates the ambiance of the movie theater by positioning the 5.1, 7.1 and immersive mixes to submerse you in the movie’s soundtrack.
THX GAME LISTENING MODEDistributes the sound effects and dialogue generated by the game engine by placing the audio from a 5.1, 7.1 or immersive mix to the appropriate “action” location – creating 360-degree gaming experience.
THX MUSIC LISTENING MODEEmulates the original studio environment for the 5.1, 7.1 or immersive mix for an accurate and increased sense of spaciousness and localization – placing you directly in the recording session.
THX SURROUND EXDecodes the third surround channel from the traditional two surround channels to create a more immersive entertainment experience.
PERFORMANCE CLASS
* Previously known as Select2
* Previously known as Ultra2