TX-SR504 7.1-Channel Home Theater Receiver

Want more than a superb balance of precise surround sound processing, powerful amplification and signal-enhancing technologies to bring out the very best in your home theater? The TX-SR504 goes above and beyond by giving you the capability to switch up to three high-definition components for simple connection to HDTVs. So, on top of sensational DVD movies and your own music catalog, the TX-SR504 easily integrates recorded video content, live high-definition broadcasts and the most gripping console games. While this receiver’s sophistication can’t be denied, it’s also designed to make operating your home entertainment a stress-free, simple exercise. A perfectly laid out rear panel features color-coded ports, while the preprogrammed RI (Remote Interactive) remote control and accessible front panel controls do all the work for you. In more ways than one, the TX-SR504 will set you up for the best home theater entertainment yet.

Key Feature Change
XM® Satellite Radio* (through XM Passport™) with XM HD Surround

With the next-generation XM Connect and Play port on the TX-SR504’s rear, it is possible to access 160 digital channels of radio programming including 100% commercial-free music; over 30 channels of news, sports, talk and entertainment; and over 20 dedicated channels of XM Instant Traffic & Weather. Now with XM Passport, a mini satellite tuner can be easily connected to other XM Ready devices (like car audio and portable device players) using only one subscription. And in a landmark breakthrough for radio, XM is able to offer XM HD Surround: radio content with six discrete channels of digital audio, enabling 24-hour, 5.1-channel surround sound radio for the very first time. Using the TX-SR504’s onboard Neural Audio decoder, XM HD Surround is possible with the free-form music channel Fine Tuning (XM Channel 76) and XM Pops (XM Channel 113), as well as with a variety of special shows and live music performances.

*Requires XM Passport/Connect and Play Kit

Power Specifications
Power Output* (8 ohm, 20 Hz-20 kHz, FTC)
Front L/R 75 W/Ch
6 ohm Capable
4 ohm Capable
Center 75 W
Surround L/R 75 W/Ch
Surround Back 75 W
Dynamic Power**
3 ohm (Front) 160 W
4 ohm (Front) 150 W
8 ohm (Front) 95 W
Amplifier Design
Color Coded Speaker Terminals x
Identical Full-Bandwidth Channels 5
Reduced NFB (Negative Feedback) Design x
WRAT (Wide Range Amplifier Technology) x
Non-Scaling Configuration x
DACs 192 kHz/24-Bit x 7
High Current Low Impedance Drive x
All Discrete Output Stage Amplifiers x
Optimum Gain Volume Circuitry x
Digital Upsampling
Comb Filter for Composite to S
Home Theater Features
HDMI Video Upconversion
THX Surround EX and THX Certified
Cinema Re-EQ
HDMI Switching Input/Output
Extended Frequency Response (+ 1 dB, - 3 dB) 10 Hz-100 kHz
DTS, DTS-ES Discrete/Matrix 6.1, DTS Neo:6 x
DTS 96/24 x
Dolby Digital, Dolby Pro Logic II x
Dolby ProLogic IIx x
Dolby Digital EX x
A-Form Listening Mode Memory x
Composite and S-Video to Component Video Upconvers
Composite to S-Video Conversion
Multichannel Input 5.1
CinemaFILTER x
Digital Soundfield Processing Modes 9
Late Night Mode x
On-Screen Display
Adjustable Digital Delay
Crossover Adjustment x
Internet Features
Number of Presets (Internet Radio)
Front-Panel Optical
Audio and AV Inputs 2/4
HDTV-Ready Component Video Input/Output x
Front-Panel Video Input (with S-Video) x
S-Video Compatible Jacks Input/Output 4/2
Digital Inputs 3 Optical, 1 Coaxial
Digital Output
Amp In
RS-232 Control Port
IR In/Out
Pre Outs
Front L/R, Center
Surround L/R
Surround Back
Time Base Correction (TBC)
Subwoofer x
Other Features
Dot-Matrix Display x
Display Dimmer 3 Levels
DS-A1 Compatible x
Enhanced IPOD Compatibility
Pure Audio Mode
XM-Ready x
Dual Banana Plug Compatible Speaker Terminals x
Zone 2 Subwoofer
Zone 2 Composite Video
Zone 2 OSD
Sleep Timer (90 minutes; 10-min steps) x
Absolute/Relative Volume Display Absolute
Intelli Volume
Phono Input
Headphone Jack x
Zone 2 (Multisource) Line Out
Powered Zone 2
12 Volt Trigger
A/B Speaker Drive A and B
Tuner Features
Number of Presets (FM/AM) 30
RI-Compatible Remote Control Prepro
Macro Function
Amplifier Section
Tone Controls
Front L/R75 W/Ch
Center75 W
Surround L/R75 W/Ch
Surround Back75 W
3 ohm180 W
4 ohm140 W
8 ohm95 W
THD (Rated Power)0.08 % (all channels)
Damping Factor (1 kHz, 8 ohm)60
CD and TAPE Play200 mV, 50 k ohm
TAPE REC200 mV, 470 ohm
PRE OUT1.0 V, 470 ohm
Frequency Response10 Hz-100 kHz (+ 1 dB, - 3 dB)
CD/TAPE100 dB (IHF-A, 0.5 V input)
BASS+/- 10 dB at 50 Hz
TREBLE+/- 10 dB at 20 kHz
Tuner Section
FM Mono0.2 %
FM Stereo0.3 %
AM0.7 %
FM Stereo Separation 45 dB at 1 kHz,30 dB at 100 Hz-10 kHz
Dimensions (W x H x D)17 1/8" x 5 7/8" x 14 3/4"
Weight20.7 lbs