Description
- Denon AVR X1800H
- Polk ES20BK
- Polk ES35BK
- Polk ES50BK
- Q Acoustic QB.12 (SUB)
The Denon AVR-X1800H is a 7.2-channel network AV receiver designed for home cinema, gaming, and music streaming. It delivers immersive surround sound with support for Dolby Atmos and DTS:X, and combines modern connectivity with 8K video pass-through and upscaling for future-ready video performance. With built-in HEOS® technology, Wi-Fi, Bluetooth, and popular streaming services support, this receiver is ideal for small to medium home theater setups seeking excellent audio-visual experiences with flexible multi-room streaming.
Key Features :
Audio & Surround Sound
7.2-Channel Amplifier: Discrete high-current amplifiers deliver up to 80 W per channel (8 Ω) to drive speakers with clear, dynamic sound.
Dolby Atmos & DTS:X: Full support for modern object-based surround audio formats that create realistic 3D sound fields.
Dolby Surround & DTS Neural:X: Upmix legacy content into immersive formats for a richer experience.
Audyssey MultEQ XT Room Calibration: Automatic speaker and room correction optimize sound performance based on your room acoustics.
Two Subwoofer Outputs: For smoother, more evenly distributed bass.
Video & HDMI Support
8K Pass-Through & Upscaling: Supports 8K/60 Hz and 4K/120 Hz signals on multiple HDMI inputs for next-gen video sources.
HDR & Enhanced Formats: Compatible with Dolby Vision, HDR10+, HDR, HLG, and Dynamic HDR for richer contrast and color.
HDCP 2.3 Support: Ensures compatibility with copy-protected 4K/8K content.
eARC/ARC Support: Enhanced Audio Return Channel lets your TV send high-quality audio back to the receiver.
Streaming & Connectivity
HEOS® Built-In: Stream music from Spotify, Tidal, Amazon Music, and more; also supports multi-room playback with HEOS-enabled speakers.
Wi-Fi, Bluetooth & AirPlay 2: Flexible wireless options for direct streaming from mobile devices.
Voice Assistant Compatibility: Works with Alexa, Google Assistant, Siri/Apple AirPlay via network control.
Multiple HDMI Inputs: At least six HDMI inputs plus one output for connecting Blu-ray players, game consoles, and set-top boxes.
User Experience & Extras
Guided Setup Assistant: Simplifies installation with step-by-step on-screen instructions.
Multi-Room & Zone 2 Support: Play different audio in another room or the same audio throughout the home.
Headphone Output & USB Power: Adds convenience for headphones and powering streaming sticks.
Broad Format Support: Plays high-resolution audio (ALAC, FLAC, WAV, DSD) and supports various digital and analog inputs
Ideal Use Cases
Home Theater Enthusiasts looking for cinematic surround sound with Dolby Atmos and DTS:X.
Gamers who want low-latency 4K/120 Hz and VRR support (via HDMI 2.1).
Music Streamers who enjoy wireless streaming and multi-room playback.
Owners of 8K Displays preparing for future video content and next-gen consoles.
The Polk ES20 is part of Polk Audio’s Signature Elite series — a line of hi-res certified bookshelf speakers built to deliver balanced, detailed sound for music, movies, and gaming. These speakers combine Polk’s acoustic design and advanced technologies to produce a wide, immersive soundstage from a relatively compact enclosure. They’re suitable as front left/right speakers in stereo setups or as part of larger surround sound systems.
Key Features :
Audio Performance
High-Resolution Audio Certified: Reproduces detailed sound with broader frequency capability, ideal for high-quality music streaming and UHD movie soundtracks.
1″ High-Resolution Terylene Dome Tweeter: Provides crisp, extended high frequencies up to ~40 kHz for clear vocals and instruments.
6.5″ Mica-Reinforced Polypropylene Woofer: Delivers rich midrange clarity and dynamic bass response that enhances music and on-screen effects.
Polk Power Port® Technology: Patented port design that smooths airflow to reduce distortion and increase low-frequency output you can feel.
Soundstage & Compatibility
Dynamic Balance Acoustic Array: Precision-tuned crossover and driver layout create a wide, natural soundstage with minimal distortion.
Wide Frequency Response: Roughly 41 Hz – 40 kHz, ensuring both deep lows and detailed highs.
High Sensitivity (~86-88 dB): Efficient output makes these speakers easy to drive with a wide range of amplifiers and AV receivers.
Compatible with Dolby Atmos & DTS:X Systems: Works well as part of a modern surround setup when paired with an AV receiver.
Build & Design
Acoustically Inert Cabinet: MDF enclosure with optimized bracing minimizes resonances for cleaner sound reproduction.
Anti-Diffraction Magnetic Grilles: Reduce interference and preserve clarity while offering a sleek look.
Gold-Plated 5-Way Binding Posts: Provide secure, low-loss connections to amplifiers or receivers.
Compact, Versatile Form Factor: Perfect for bookshelves, stands, or small room installations.
Technical Specs (Highlights)
Impedance: Compatible with both 4 Ω and 8 Ω outputs.
Recommended Amplifier Power: ~20 W – 150 W per channel.
Crossover Frequency: ~2,500 Hz.
Frequency Response: ~41 Hz – 40 kHz.
The Polk ES35 is a slim, high-resolution center channel speaker designed to deliver clear dialogue, detailed audio, and impactful performance for movies, TV shows, and music. It’s part of Polk Audio’s Signature Elite series, blending modern acoustic design with versatile placement options. The low-profile design fits easily beneath most TVs or can be wall-mounted, making it ideal for living rooms where space is limited but sound quality is still a priority.
Key Features :
Audio & Performance
Hi-Res Audio Certified: Equipped with a Terylene high-resolution dome tweeter that reproduces finely detailed highs up to around 40 kHz, perfect for music and high-resolution content.
Dynamic Balance Acoustic Array: Uses six 3″ mica-fortified polypropylene drivers and a Terylene tweeter with phase-optimized, cascaded crossovers for a balanced, immersive soundstage with minimal distortion.
Polk Power Port® Technology: Dual port design enhances bass output, providing deeper, cleaner low frequencies than typical slim center channel speakers.
Dialogue Clarity: Designed to make voices and dialogue stand out clearly in movies and TV shows, anchoring the center of your home theater sound.
Home Theater Compatibility
Slim, Space-Saving Design: Low-profile speaker fits well under flat-screen TVs and can be mounted vertically or horizontally, making it flexible for different setups.
Dolby Atmos & DTS:X Friendly: Works seamlessly as a center channel or as part of a larger surround sound configuration when paired with an AV receiver that supports immersive audio formats.
Flexible Placement: Includes keyhole slots on the cabinet for easy wall mounting or shelf placement.
Build & Connectivity
Gold-Plated 5-Way Binding Posts: Ensure secure, low-loss connection to amplifiers and AV receivers.
Acoustically Rigid Cabinet: MDF cabinet with optimized internal bracing reduces resonance for cleaner sound reproduction.
Technical Specs (Highlights)
Frequency Response: ~68 Hz – 40 kHz — wide range for rich audio detail.
Sensitivity: ~89 dB — efficient output with many receivers.
Impedance: Compatible with 4 Ω and 8 Ω outputs — works with most home audio systems.
Recommended Amplifier Power: ~20 W – 150 W per channel.
Dimensions: ~24.4″ × 4.1″ × 6.1″ (WxHxD) — slim footprint for tight spaces.
Weight: ~14 lb (6.4 kg).
The Polk Signature Elite ES50 is a high-resolution floor-standing loudspeaker that delivers spacious, detailed, and immersive sound for movies, music, and gaming. Its design focuses on achieving balanced performance across low, mid, and high frequencies, making it suitable as the main left/right speakers in a stereo or surround sound system. The ES50 towers are engineered to work with a wide range of receivers and amplifiers, whether vintage hi-fi gear or modern AVRs with Dolby Atmos/DTS:X support.
Key Features
Audio Performance
Hi-Res Terylene Dome Tweeter: A 1″ high-resolution dome tweeter delivers crisp, detailed high frequencies, extending up to ~40 kHz for nuanced music and clear dialogue.
Dual 5.25″ Mica-Reinforced Polypropylene Woofers: Provide tight bass and smooth midrange response with minimal distortion, enhancing both music and movie soundtracks.
2.5-Way Cascaded Crossover: Precision crossover design ensures seamless blending between drivers for coherent and balanced sound.
Bass & Soundstage
Polk Power Port® Technology: Patented port design enhances low-frequency output while reducing turbulence and distortion, resulting in deeper, cleaner bass that’s musical and impactful.
Dynamic Balance Acoustic Array: Carefully tuned driver and cabinet design create a wide, immersive soundstage that fills the listening space.
Design & Buil
Quiet, Rigid Cabinet: MDF enclosure with internal bracing minimizes cabinet resonance and standing waves for cleaner audio.
Anti-Diffraction Magnetic Grille: Reduces sonic interference and provides a sleek aesthetic, with easy removal for a more traditional look.
Dual Gold-Plated 5-Way Binding Posts: Ensure secure, efficient connections to amplifiers or AV receivers.
Compatibility
Wide Amplifier Support: Works with both 4 Ω and 8 Ω outputs from a variety of amps and receivers.
Suitable Power Range: Recommended amplifier power per channel is roughly 20 W – 150 W, making it flexible for mid-range systems.
Dolby Atmos & DTS:X Friendly: Integrates well with modern surround sound AV receivers for immersive home theater setups.
Technical Highlights
Frequency Response: ~42 Hz – 40 kHz — wide range for deep bass and detailed highs.
Sensitivity: ~89 dB — efficient output suitable for most receivers.
Crossover Frequency: ~2,500 Hz — optimized driver transition point.
Dimensions: ~37.4″ (H) × 7.5″ (W) × 10.9″ (D) — tall, space-filling tower design.
Weight: ~32 lbs each — solid, well-built speaker
The Q Acoustics QB12 is a high-performance 12-inch powered subwoofer engineered to deliver deep, accurate, and dynamic low-frequency sound for music and movies. It’s the first 12-inch subwoofer from Q Acoustics, built to complement both stereo hi-fi systems and multichannel home theater setups. The sealed (infinite baffle) cabinet design and robust internal construction help produce tight, controlled bass rather than boomy or loose low end, making it ideal for users who want clarity and authority in the bass range without sacrificing detail.
Key Features :
Powerful Bass Performance
12-inch Long-Throw Driver – Large high-excursion driver delivers deep and impactful bass with strong dynamics, suitable for both music and cinematic soundtracks.
220 W RMS Class D Amplifier – Efficient Texas Instruments Class D amplifier provides plenty of power with low distortion and high control, ensuring clean output even at higher volumes.
50 mm Voice Coil – Helps reduce thermal compression for better performance during extended listening sessions and low-frequency passages.
Design & Build
Sealed (Infinite Baffle) Enclosure – The sealed box design delivers tight, controlled bass with less resonance and smoother response compared with ported subwoofers, making placement more flexible.
Reinforced MDF Cabinet with Dart Bracing – Internal structural support improves cabinet rigidity, reduces vibrations, and minimizes unwanted coloration in the bass.
Adjustable Spiked Feet – Spike feet (with rubber caps for hard floors) help stabilize the subwoofer and reduce energy transfer to the floor.
Controls & Integration
Phase Switch & Adjustable Crossover – Rear panel controls let you align the subwoofer with your main speakers and set a custom crossover frequency for seamless integration.
Level (Volume) Control – Easily adjust the output level to match your main speaker system and room acoustics.
Line-Level Inputs (RCA / LFE) – Standard connections ensure simple setup with AV receivers and preamps.
Performance Specifications
Frequency Response: ~28 Hz – 300 Hz — deep bass that supports both movies and music.
Peak Amplifier Output: ~440 W — provides headroom for dynamic peaks.
Continuous Amplifier Power: ~220 W — steady, reliable performance.
Crossover Range: ~40 Hz – 250 Hz — flexible tuning with your main speakers.
Dimensions: ~400 × 400 × 446 mm — compact yet substantial for robust bass.
Weight: ~18.5 kg — solid and well-built.
