Sennheiser HD800S & FiiO K13 R2R DAC / AMP
Sennheiser HD800S Headphones & FiiO K13 R2R DAC & Headphone Amplifier
Email me when the availability or price changes
Finance this product
- From £38.04 / month (APR 16.9%) for 48 months or 0% for 4 months
- With a 10% deposit from just £33.69 / month (APR 15.9%)
Sennheiser - HD 800 S Open-Back Headphones
& FiiO K13 Desktop R2R DAC and Headphone Amplifier
scan pro audio exclusive bundlePrecision listening starts with transducers and conversion you can trust. Pairing the expansive transparency of the Sennheiser HD 800 S with the organic, analog-inspired character of the FiiO K13, this bundle is built for listeners who demand spatial accuracy, tonal realism, and uncompromising details. The HD 800 S is renowned for its vast soundstage and pinpoint imaging, revealing micro-dynamics and mix decisions with surgical precision, while the K13 R2R's architecture delivers natural timbre, depth, and effortless headroom.
For mastering engineers, mix specialists, and critical-listening enthusiasts, this pairing creates a reference-grade monitoring chain that translates with confidence. Expect controlled low-end extension, articulate mids, and extended highs without fatigue — whether you’re evaluating a final master or rediscovering a favorite high-resolution recording. This isn’t just a headphone setup; it’s a finely tuned signal path designed to expose the truth in every track.
what's included?
• Sennheiser - HD 800 S Open-Back Headphones
• FiiO K13 Desktop R2R DAC and Headphone Amplifier
Open-Back Headphones
Sennheiser - HD 800 S
The new standard for critical listeningThe Sennheiser HD 800 S headphones bring together the care dedicated to a handcrafted instrument and the precision of modern manufacturing, the HD 800 S allows you to explore your entire music collection from the inside out. After launching its predecessor - the HD 800, Sennheiser gave themselves the challenge to completely disappear from the last link in the audio chain, with the aim of providing acoustics so immersive that your awareness dissolves into the creator’s perspective. Each and every component of the HD 800 S is world-class. The signature sound of the HD 800 S is possible not because of a single component, but through the combination of them all.
300 ΩImpedance
4Hz - 51kHzFrequency Response
56mmDriver Size
At A Glance
• Reference class open-back audiophile headphones
• Comfortable microfiber ear and headband padding on key contact points
• Acoustic absorber system prevents frequency masking for unheralded detail
• Impressively natural and spatial listening experience
• 56mm Ring Radiator dynamic transducer system
What's In The Box?
• HD 800 S
• Cable with 6.35 mm jack plug
• Cable with balanced 4.4 mm jack plug
• Manual
Setting The New Industry Standard
Ring Radiator transducerThe transducer leverages the main benefit of a large diaphragm transducer, which is air displacement without losing the rigidity that favourably impacts rest and response times. Instead of a single attachment on the outer circumference of the transducer, both outer and inner edges of the “ring” are secured to the drive unit. The voice coil excites the diaphragm, connected to the v-shaped groove found near the center of the ring. A feat in itself, the voice coil is 40mm and wound in-house to ensure the shape and consistency is held to the highest standard.
complete stabilityEvery transducer is manufactured, tested, and measured to the highest tolerance to ensure the most dependable performance out of the box. The steel mesh found in the baffle is also matched and integrated with consistency as a priority, as it adds to the ultra-low variance in the management of travelling sound waves. Each HD 800 S includes the frequency response plot unique to those perfectly matched transducers, sparing no resource to help you hear the most vital nuances from every section of your music collection.
Mesmerizing Soundstage
perfectly matched transducer systemsA result of several key features, the drivers are mounted at a precise angle, guiding the sound directly to the listener’s ears at their natural inflection point. Instead of hearing a sound that forms between your ears, you hear a vivid blend of frequencies and sensory-stimulating transients.
When combined, the vibration damping chassis, perfectly matched transducer systems and wide-open construction work in concert to provide the most impressive soundstage yet. This orientation rivals or exceeds loudspeaker setups costing exponentially more, especially when room acoustics are factored in. The HD 800 S gives you a personal concert hall on-demand, without disturbing the neighbours.
Advanced Sound Reproduction System
Incredible ExtensionGaining acoustics that are true to the source also requires management of compounding frequency clusters that produce undesirable masking effects. Sennheiser integrated a patented frequency absorber, which is a principle similar to that found in the breakthrough IE 800S, to reduce resonances that hide extraordinary musical details in plain sight.
The transducer system is also mounted in a vibration damping chassis using aerospace-grade materials. Together with the previously mentioned headband, the problematic energy peaks of lower frequencies are managed to display the purity your hi-fi setup is capable of.
An Ergonomic Treat
Ultra ComfortEvery contact point utilizes ultra-soft microfiber padding, while purpose-made composites reduce weight and unwanted pressure. Each earcup offers dual-axis articulation, as soon as you put them on the HD 800 S will instantly and seamlessly conform to your unique structure. The result is an incredible listening session that never stands in the way of your passion for hi-fidelity sound reproduction.
Desktop DAC and Headphone Amplifier
FiiO - K13 R2R (Black)
Unlock Your Best MixesThe FiiO K13 R2R features a proprietary four-channel fully differential 24-bit R2R resistor array DAC, featuring 48 precision thin-film resistors per channel, for a total of 192 resistors across four channels. Each resistor features 0.1% accuracy and low temperature drift (30ppm). This R2R DAC allows the K13 R2R to deliver a uniquely rich and musical sound, and employs a fully differential architecture that leads to lower noise, and fewer FFT harmonics, resulting in a darker music background.
At A Glance
• Fully differential True 24bit R2R DAC Resistor Arrays
• Fully Balanced Audio Amplifier Circuit
• XLR+RCA Preamplifier/Line Output
• 2400mW+2400mW Powerful Output
• 10-Band High-Precision PEQ
• DC/AC Dual Power Supplies
• NOS/OS Dual Modes
• LDAC Bluetooth
Dual NOS/OS Modes Double The Fun
NOS (Non-Oversampling) ModeMaintains the original sampling rate for decoding, preserving authentic sound and allowing you to enjoy an organic and captivating musical experience.
OS (Oversampling) ModeUpsamples globally to a high sampling rate of 384kHz, for superior audio performance and even more refined, clear sound.
The K13 R2R supports 1Bit DSD native decoding. When playing DSD tracks, slightly lower volume is a normal phenomenon. It is recommended to adjust the volume to a normal listening level. In this mode, the menu setting SAM:OS will be disabled. In different modes, the actual listening experience may vary depending on various subjective and objective factors. Please refer to your own personal listening experience.
Preamplifier + Power Amplifier Output
Desktop Decoding HubWith a wide range of inputs and outputs, this unit functions as both a preamplifier and a power amplifier, catering to various listening preferences.
It also supports PCM 384kHz/32bit and DSD256 decoding, allowing it to effortlessly process high-resolution audio signals to deliver rich sonic detail and for an outstanding listening experience.
Ten-Band High-Precision PEQ
Effortless Sound CustomizationThe K13 R2R, with the help of the XMOS XU316 platform, features specially-developed PEQ, with support for 10 frequency band adjustments across all operating modes.
With FiiO's proprietary tuning algorithm, accessible through their app or web interface, you can easily utilize preset tunings like "Retro PEQ", or even simulate and correct headphone frequency response curves. It also supports exporting, importing, sharing, and saving EQ curves, and auto-EQ, making sound tuning effortless.
Specially-Designed Power Supply
DC/AC Dual power suppliesThe built-in 30W switching power supply is protected by an alloy nickel-plated shielding cover, which significantly boosts its anti-interference capabilities and ensures a cleaner power supply.
Additionally, it also features an external DC power input, allowing you to pair it with a higher-performance linear power supply for a different sound experience.
Fully Balanced Audio Amplifier Circuit
ultimate clarityThe entire audio chain, including the R2R DAC, LPF, volume control, and headphone amp, uses fully differential signal processing for excellent interference rejection, minimal distortion, and high dynamic range. The amplification circuit also features gain control, headphone protection mechanisms, and POP noise elimination for a robust and reliable audio experience.
Multi-Rail Power Supply
Robust performanceWith up to 18 low-noise LDOs and 5 DC-DC converters in total, this unit employs a multi-rail power supply to provide strong and clean power for exceptional audio output.
Premium Features
ELNA RA3 audiophile-grade electrolytic capacitorsPremium ELNA RA3 series silk-film audio capacitors and specialized audio tantalum electrolytic capacitors work together to ensure a pure, stable power supply for the device, delivering a warm and natural sound.
Robust output Revealing every last detailWith a balanced output power of 2400mW+2400mW into a 32Ω load, the K13 R2R can effortlessly drive both high-fidelity IEMs and headphones, unlocking their full potential and allowing them to render every last detail.
Superior screen ClarityA custom, high-contrast, long-lasting HD LCD display clearly shows the device's current status at a glance, including sampling rate, volume, gain, and output mode.
Adjustable RGB logo lightingWith support for Bluetooth 5.4 and reception for the LDAC/AAC/SBC codecs, the K13 R2R allows you to be immersed in a world of high-quality music even when listening wirelessly.
Precisely Designed Perfect Performance
Three gain levels, three independent volume curvesDifferent gain levels mean the K13 R2R is better able to adapt to various kinds of IEMs and headphones for better listening experiences. Moreover, volumes of PO and PRE can be memorized independently.
Overheating protection, overload protectionProtection mechanisms will automatically kick in when abnormal operating conditions are detected to avoid damage to the unit, making it safer to use.
Adjustable RGB lightingNot only does the RGB lighting indicate the current audio sampling rate, but you can also customize the brightness, colours, and whether it pulses or not.
1-99 minutes timer shutdownConvenient functionality, meeting your needs. Timer shutdown works one time after being set each time.
Sennheiser - HD 800 S
The Tech Spec
| Features | Specification | Type | Wired |
|---|---|
| Open/Closed | Open |
| Fit Style | Circumaural (Around the Ear) |
| Driver Size | 56mm |
| Frequency Response | 4Hz - 51kHz (-10 dB) |
| Impedance | 300 ohms |
| Connectivity | 1/4" plug, 4.4mm plug |
| Cable Type | Straight |
| Cable Length | 9.8 ft. |
| Detachable Cable | Yes |
| Colour | Black |
| Material | Microfiber Earpads |
| Weight | 0.73 lbs. |
FiiO - K13 R2R
The Tech Spec
| Features | Specification | Hardware Solution | SoC: ESP32-S3 DAC: FIIO-developed R2R DAC USB decoding: XU316 AMP: OPA1642 x2 + TPA6120A x2 |
|---|---|
| Working Mode | USB DAC mode/Coaxial decoding mode/Optical decoding mode/Bluetooth receiving mode |
| Colour | Black |
| Gain | L/M/H |
| Remote Control | Supports IR remote control (only the one included in the accessory) |
| Volume Control | Knob/Remote control |
| FiiO Control | Supported |
| Driver-Free Mode (switch mode) | Supported |
| Bluetooth Receiving (5.4) | SBC/AAC/LDAC |
| Oversampling Setting | OS/NOS |
| PEQ | Supported |
| MQA | Supports MQA full decoding |
| Knob Indicator Light/Top Ambient Light | Supports customizing brightness and colour, and supports always-on indication or RGB pulsing |
| Display | 1.1-inch LCD |
| Screen Status Indication | Sampling rate, volume, gain, output mode, etc. |
| Max. Supported Sampling Rate (PEQ=OFF) | USB decoding: 384kHz/32bit; DSD256 Coaxial decoding: 192kHz/24bit; DSD64 Optical decoding: 192kHz/24bit |
| Firmware | MCU firmware: Upgrade through the side USB-C port XMOS firmware: Upgrade through the side or rear USB-C port Bluetooth firmware: Upgrade through the FIIO Control app |
| Adaptive Impedance | PO: 8~350Ω BAL: 8~350Ω |
| USB Port | Type-C USB x 2 (data transmission port) |
| Digital Coaxial Input Port | RCA plug |
| Digital Optical Input Port | Optical port |
| Balanced Output Port | Standard 4.4mm port |
| Headphone Output Port | Standard 6.35mm port |
| Balanced Line Output Port | XLR3 balanced port |
| Single-Ended Line Output Port | RCA port x 2 |
| Toggle Switch | Power toggle switch |
| Dimensions (including feet) | 210mm x 188mm x 42mm |
| Weight | 980g |
| In The Box | K13 R2R Infrared Remote Control AC Power Cord Quick Start Guide Warranty Card Headphone Adapter USB Data Cable |
PayPal Credit
| Monthly Payment: | £122.22 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £1,349.00 |
| Total inc. interest: | £1,466.59 |
| Monthly Payment: | £65.87 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £1,349.00 |
| Total inc. interest: | £1,580.84 |
| Monthly Payment: | £47.24 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £1,349.00 |
| Total inc. interest: | £1,700.56 |
| Monthly Payment: | £38.04 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £1,349.00 |
| Total inc. interest: | £1,825.64 |
| Example | |
| Minimum Spend: | £99 |
| Instalment Rate: | N/A |
| Cost of purchase: | £99 |
| Total inc. interest: | £99 |
Representative Example:
Purchase Rate: 23.9% p.a. (variable)
Representative: 23.9% APR (variable)
Assumed Credit Limit: £1,200
Subject to status. Terms and Conditions apply.