5.1.2-Ch Home Theater Receiver & Speaker Package

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The 3D home cinema that fits in with you

Dolby Atmos® and DTS:X® sound can be yours, minus speaker clutter and installation hassle, with the 5.1.2-Ch HT-S5915 Home Cinema Package. High-current amps develop 160W/Ch to wrap your friends and family in 3D sound thanks to Dolby Atmos-enabled woofers concealed in the front speakers. The latest DTS® and Dolby® audio upmixing and virtualization technologies ensure the best reproduction from your chosen speaker layout. The receiver makes home entertainment easy with features such as Vocal Enhancer to boost dialog in-program; Zone B line-out ideal for a wireless headphone transmitter; powered Zone B audio distribution; video pass-through for 4K HDR; and AccuEQ speaker calibration with AccuReflex™. Get your tunes flowing with digital and analog audio connections or tap and stream with Bluetooth® wireless technology. Everything you need, down to a chunky 90 W subwoofer, is in one carton, ready to transform your evenings into events worth rushing home for.

* Enabled with a future firmware update.

Surround yourself in Dolby Atmos and DTS:X sound  Image

Surround yourself in Dolby Atmos® and DTS:X® sound

With Dolby Atmos and DTS:X audio formats, sounds in the movie scene are mapped to their corresponding positions within the entertainment space, allowing any audio to be localized or moved from one speaker to another all around the audience in sync with the on-screen action. The sense of spatiality unlocks a new dimension to movies and games. Enjoy classic titles through your Dolby Atmos-enabled speaker system with Dolby Surround® and DTS® Neural:X upmixers finding localization cues in legacy soundtracks and remapping them for 3D playback.

Dolby Atmos Height Virtualizer Image

Dolby Atmos Height Virtualizer

When playing any Dolby® format, engaging Dolby Atmos Height Virtualizer enables a more immersive listening experience, creating a virtual surround and height effect from traditional speaker layouts without employing additional surround or height speakers.

Note: Enabled with a future firmware update.

Elevated sound with DTS Virtual:X Image

Flexible 3D sound with DTS Virtual:X™

DTS Virtual:X is a surround virtualization technology that works with DTS:X, DTS® formats, and non-encoded stereo soundtracks to create an immersive 3D sound-field from horizontal speaker layouts without height speakers connected. It uses algorithms to create a convincing sense of 3D spatiality through a 5.1-ch layout, leaving you with a pair of channels for audio distribution in Zone B.

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Flexible speakers make 3D sound easy

Factory-matched speakers suit the amp’s personality and look cool in any room. Solid 2-Way front speakers include a 12 cm driver and 2.5 cm tweeter and have a strong, confident, vibrant sound. Sealed enclosures house Dolby Atmos-enabled drivers powered by the Height channels. These reproduce the vertical dimension in 3D audio without any installation clutter. The center unit has two big drivers and tweeter while an active 90 W subwoofer with 20 cm cone punches out deep, taut bass for a visceral impact. Compact surround speakers are easily placed about the listening position, or use them in Zone B with a 3.1.2 layout in Main.

Supports new 4K HDR video formats Image

Supports 4K HDR and Media Data Display

The receiver has four HDMI® inputs and one ARC-enabled output that supports up to 18 Gbps transmission of 4K video at 50/60 Hz along with HDR (HLG, HDR10, Dolby Vision™), the BT.2020 color standard, and 4:4:4/24-bit video. Video passes from connected players through the receiver to the TV via one easily concealed HDMI cable. You can check your player, receiver, and TV are working harmoniously by calling up a transparent on-screen media input-output display to confirm playback conditions such as audio codec, sound mode, video frame-rate, video resolution, and HDR format without interrupting your program.

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Discrete high-current analog amplification

Watts seem like the most important number on an amp’s spec sheet. However, they only indicate loudness, not audio quality. Amperes (current) are the secret to good sound. Current grips the speaker cones to control their travel. The higher the current, the greater the control. Better speaker control means faster dynamic response, clearer detail, and more rhythmically exciting sound. The HT-S5915 features a High-Current Low-Noise Power Transformer, large capacitors, and discrete high-current amp circuitry that combine to deliver the highest current flow of any AVR in its class.

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AccuEQ Room Acoustic Calibration with AccuReflex™

AccuEQ creates a harmonious sound-field in your room. It detects speaker presence and size, and distance from a measurement position and sets appropriate sound-pressure levels. It then selects the subwoofer crossover and EQ’s all speakers, including the sub. AccuReflex optimizes 3D audio reproduction through Dolby Atmos-enabled speakers. It resolves phase-shift that arises from path differences between directional and non-directional sounds.

Share sound or enjoy privately Image

Clearer dialog at the touch of a button

This Onkyo technology solves the problem of inaudible dialog in TV programs and movies. DSP-controlled Vocal Enhancer identifies voice frequencies so you can raise or lower them using keys on the remote or controls on the front panel.

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Flexible powered and unpowered zone audio

The Zone B line-out is ideal for connecting a compatible transmitter to make audio in the main room available to a pair of wireless headphones. This is great for watching TV at night or when you’re viewing the screen from a distance. Any hi-fi with an analog RCA input can be connected to share audio (including SPDIF and HDMI) simultaneously in Main and Zone B. In addition, the HT-S5915 includes assignable Powered Zone B outputs that share amplified audio to speakers in another area of the home.

Bluetooth wireless technology with Advanced Music Optimizer Image

Stream with Bluetooth® wireless technology

Stream virtually any audio from your smartphone, tablet, or PC to your home cinema with Bluetooth wireless technology. Select Advanced Music Optimizer™ listening mode to restore high-frequency bit information lost during the compression process in real time, leading to fuller, richer sound upon playback.

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USB power for streaming sticksy

A USB terminal on the rear panel powers any media streaming stick plugged into an adjacent HDMI input—great if you don’t have enough power-points.

Supplied Accessories


160 watts per channel

5.1.2-ch Dolby Atmos® and DTS:X® playback

Dolby Atmos Height Virtualizer and DTS Virtual:X™*

Supports 4K/60p and HDR (HDR10, HLG, Dolby Vision®, BT.2020)

AccuEQ Room Acoustic Calibration with AccuReflex™

Discrete high-current amp system with 4-ohm drive capability

Bluetooth® wireless technology and Advanced Music Optimizer™™

Vocal Enhancer DSP function improves voice audibility

Zone B line-out connects wireless headphone transmitters or hi-fi systems for sound in Main and Zone B (including HDMI®/SPDIF)

OSD window shows media format data for quick confirmation

* Enabled with a future firmware update. DTS Virtual:X is not selectable when Height speakers are connected.


HT-R495 7.1-Channel Home Theater Receiver

160 W/Ch x 7 (6 Ω, 1 kHz, 10% THD, 1-ch driven), 135 W/Ch x 7 (6 Ω, 1 kHz, 1% THD, 1-ch driven, IEC)

Dolby Atmos® and DTS:X® audio format playback through 5.1.2 channels

Dolby Atmos Height Virtualizer* and DTS Virtual:X 3D audio processing

Dolby Surround® and DTS® Neural:X upmixing technologies

Supports Dolby® TrueHD, DTS-HD Master Audio®, 3D Video, ARC (Audio Return Channel), DeepColor™, x.v.Color™, and LipSync

Supports 4K/60p, HDR (HDR10, HLG, Dolby Vision™, BT.2020), and 4:4:4/24-bit video pass-through via HDCP 2.2-compliant HDMI terminals

Discrete 7-ch analog amplification system with 4-ohm speaker-driving capability

High-Current Low-Noise Power Transformer and audio-grade capacitors

AccuEQ Room Acoustic Calibration, Subwoofer EQ, and AccuReflex

Bluetooth® wireless technology and Advanced Music Optimizer to enhance compressed audio playback quality

DSP-controlled Vocal Enhancer function improves dialog audibility via remote control keys or front-panel controls

High-quality AKM 384 kHz/32-bit multichannel D/A conversion

Direct Mode for source-authentic stereo sound

4 HDMI® inputs and 1 output with ARC (4K/60p, HDR, HDCP 2.2)

2 digital audio inputs (1 optical and 1 coaxial, assignable)

3 analog audio inputs (assignable)

Zone B pre-/line-out shares any audio source to components with an RCA input, including mini hi-fi systems, integrated amps, wireless headphone docks, etc.

Zone B speaker output for powered audio distribution in Main and Zone B (including SPDIF and HDMI audio)

Supports Front L/R channel bi-amping

Rear USB power supply terminal (5 V/1 A) for media streaming devices

2 subwoofer pre-outs

Speaker terminals (screw-type x 2 [Front L/R], lever-type x 5)

6.35 mm headphone output (front)

GUI via HDMI with OSD featuring new A/V input/output information display

3.5 mm input for AccuEQ (front)

1080p to 4K Ultra HD Super Resolution upscaling over HDMI

Numbered Quick Connection Guide illustrations on rear panel

Direct Power On activates receiver when input key is pressed

HDMI passthrough standby mode

Tone controls for Front L/R channels (bass/treble)

3-Mode front-panel display dimmer (Normal/Dim/Dimmer)

AM/FM tuner with 40 random presets

Sleep timer

Redesigned simple remote controller

* Enabled with a future firmware update.

HTP-598 5.1.2-Channel Home Theater Speaker System

SKF-596 2-Way Bass-Reflex Front Speakers Full-Range Acoustic-Suspension Height Speakers

12 cm cone woofer

2.5 cm balanced-dome tweeter (Front)

8 cm cone (Dolby Atmos-enabled Height channel)

Max. input power: 130 W

Ready to wall-mount

SKC-596 2-Way Bass-Reflex Center Speaker

8 cm cone woofer(x2)

2.5 cm balanced-dome tweeter

Max. input power: 130 W

Ready to wall-mount

SKR-594 Full-Range Acoustic-Suspension Surround Speakers

8 cm cone

Max. input power: 130 W

Ready to wall-mount

SKW-658 Bass Reflex Powered Subwoofer

20 cm cone

Max. output power: 90 W(4 Ω, 100 Hz, 10% THD)

Energy-saving high-power amplifier

Down-firing design

Note:All speakers have 6-ohm impedance (excluding subwoofer) and are not certified for Hi-Res Audio playback.



Power Output (All channels):
160 W/Ch (6 ohms, 1 kHz, 10% THD, 1 channel driven)
135 W/Ch (6 ohms, 1 kHz, 1% THD, 1 channel driven, IEC)

THD+N (Total Harmonic Distortion + Noise):
0.08% (20 Hz–20 kHz, half power)

Input sensitivity and impedance:
200 mV rms/47 kΩ (Line)

Frequency response:
10 Hz–100 kHz/+1 dB, -3 dB (Direct Mode)

Tone control:
±10 dB, 20 Hz (Bass) / ±10 dB, 20 kHz (Treble)

Signal-to-noise ratio:
109 dB (Line, IHF-A)

Speaker impedance:
4 Ω–16 Ω

Tuning frequency range:
FM 87.5 MHz–108 MHz
AM 530 kHz–1,710 kHz/522 kHz–1,611 kHz

Power supply:
AC 220–240 V~, 50/60 Hz

Power consumption:
480 W

Standby power consumption:
0.2 W

Dimensions (W x H x D): 435 x 160 x 328 mm

Weight: 8.2 kg


Speaker Type:
Front 2-Way bass-reflex, 12 cm cone woofer, 2.5 cm balanced-dome tweeter
Height Full-range acoustic-suspension, 8 cm cone woofer
Center 2-Way bass-reflex, 8 cm cone woofer x 2 2.5 cm balanced-dome tweeter
Surround Full-range acoustic-suspension, 8 cm cone woofer
Subwoofer Bass-reflex, 20 cm cone

Frequency Response:
Front 55 Hz–50 kHz
Height 80 Hz–20 kHz
Center 65 Hz–50 kHz
Surround 80 Hz–20 kHz
Subwoofer 27 Hz–150 Hz

Output Sound Pressure Level:
Front 83 dB/W/m
Height 82.5 dB/W/m
Center 86 dB/W/m
Surround 81 dB/W/m

Max. Input Power:
Front, height/center/surround 130 W

Max. Output Power:
Subwoofer 90 W (4 Ω, 100 Hz, 10% THD)

Nominal Impedance:
Front, height/center/surround 6 Ω

Dimensions (W x H x D):
Front/height 155 x 467 x 183 mm
Center 409 x 115 x 121 mm
Surround 115 x 230 x 96 mm
Subwoofer 230 x 425 x 410 mm

Front/height 3.6 kg
Center 2.2 kg
Surround 1.0 kg
Subwoofer 7.7 kg

Due to a policy of continuous product improvement, Onkyo reserves the right to change specifications and appearance without notice.

Product Information