The Pre Box RS2 Digital is a class-leading pre-amplifier, DAC and headphone amplifier with an ultra-linear signal path and ultra-low noise. Boasting a host of connection options, it is the ideal system hub for driving high-end headphones, power amplifiers or active speakers.
Built around a very sophisticated digital stage, it boasts a dual-mono configuration of the high-class ESS Sabre ESS9038Q2M DAC chips with upsampling technology. Unlike most other DAC designs, the Pre Box RS2 Digital boasts dual DAC chips and separate signal paths for the left and right channels. This allows for the finest conversion possible and support for digital transmission up-to 32-bit / 768kHz PCM and DSD512 over USB. There's also full authorisation and hardware/software support for Master Quality Authenticated (MQA) audio files, and Roon Tested certification for quick integration into a Roon-based system. To handle all this complexity, the Pre Box RS2 Digital's USB input is processed by a powerful multi-core XMOS microcontroller with advanced Multi-Core RISC architecture. The CPLD MAX II (Complex Programmable Logic Device) Altera is used for re-clocking, which together with the XMOS microcontroller brings high-quality processing of both traditional and MQA source material.
In addition to the extensive USB options, the Pre Box RS2 Digital can also connect directly to the matching CD Box RS2 T via a proprietary HDMI connection that carries I²S and the master clock (16,9344 MHz) signal. There are also additional optical, coaxial, AES/EBU and wireless Bluetooth (v4.0) digital connections as well as two analogue inputs (balanced and unbalanced) for connection to more traditional devices.
For sound personalisation, the Pre Box RS2 Digital offers a switchable solid-state / 6922 tube output stage. Then there are also eight (8) digital filters, including the proprietary optimal transient digital filter designed by the creators of MQA, for further customisation of the end performance.
At the output stage, both the pre-amplifier and headphone amplifier outputs are treated with equal care. For the headphone amplifier, there has been absolutely no compromises made. There are no coupling capacitors - not even on the output - and though the whole amplifier is DC coupled there is a very fast DC servo that assures no DC voltage on the output for absolute signal integrity. The output power is also suitable for all kinds of headphones. The pre-amplifier output is equipped with RCA and XLR connection options for any high-end system.
For ease of use, the Pre Box RS2 Digital is equipped with a large LCD display that matches the CD Box RS2 T design. Control is best achieved with the supplied aluminium IR remote, where the extensive setting options menu can be navigated with ease. The Pre Box RS2 Digital is a truly complete solution, and is available in high-quality aluminium black or silver finish.
- Luxury pre-amplifier with DAC and headphone amp features
- Dual Mono ESS Sabre DAC chip configuration
- Multiple digital inputs, including wireless Bluetooth connectivity
- Full MQA support over USB and when connected to a CD transport
- Roon Tested, for easy set-up in a Roon system
- Extensive digital filter options built-in
- Fully-balanced dual mono design for absolute audiophile performance
- Output stage switchable between 6922 tubes and solid state signal paths
- High-quality headphone amplifier stage optimised for high-end playback
- Ultra-linear and ultra low noise design throughout
- New high-quality display with responsive and fast UI design
- Aluminium IR remote included
|DAC:||X2 ESS9038Q2M (dual mono - 32bit/768kHz/DSD512)
with 8 different digital filter settings
|Digital Inputs:||1 x USB 2.0 Audio 32/768 + DoP and Native-DSD up to DSD512
1 x HDMI I2S for CD Box RS2 T
2 x S/PDIF optical 24/192, 1 x S/PDIF coaxial 24/192
1x AES/EBU balanced 24/192
|MQA Support:||Full MQA unfolding by hardware|
|Line-level Input||1 pair XLR
1 pair RCA
|Input Impedance:||15 kΩ|
|Output Impedance:||180 Ω solid state, 220 Ω tube|
|Analogue Outputs:||Pre-out (XLR & RCA)
Headphone (6.35mm jack)
|Headphone Output Power:||90 mW / 300 Ohm, 245 mW / 32 Ohm, 90 mW / 8 Ohm|
|THD+N (20Hz - 20kHz):||< 0.006% solid state/0.017% tube @ 2V RMS, 1 kHz|
|Bluetooth Version:||Fully embedded Bluetooth® v4.0|
|Bluetooth Codecs:||SBC, AAC and AptX|
|Output Buffer:||Discrete and balanced, tube and solid state|
|Tubes:||4 x 6922EH|
|Power Supply:||20V / 3A DC|
|Power Consumption:||Max. 1.2A DC (< 0.5W in Standby)|
|Dimensions (W x H x D):||206 x 72 x 222 mm|
|Weight:||1710g without power supply|
We are still delivering orders as normal. When your order ships you will still receive tracking details. For UK shipments, Our couriers have procedures in place to ensure deliveries are arriving as quickly & safely as possible. Drivers can now sign for your parcels, however will notify you that they have arrived, in order to ensure you receive your parcel. Signing for the parcel has now been stopped temporally for hygiene reasons. Drivers are also working with customer instructions, so you can ask them to leave the parcel in a safe place (doorstep etc...) if you prefer not to come into direct contact with the driver.
There has been no changes to deliveries with Brexit. All deliveries to the UK mainland, Northern Ireland and the Republic of Ireland are operating as normal. No VAT or charges are applicable.
Express Delivery is FREE on all orders over £50. Express Delivery offers delivery in 24-72 hours from time of purchase. We use premium couriers for this service, mainly DPD & Royal Mail. DPD will offer you a one hour window for delivery to make sure someone is at home, or you can reschedule the delivery if no one is around.
Here at Kronos AV, we have vast experience with e-commerce sales. Making sure that your parcel arrives undamaged is a huge priority for us. That’s why at Kronos AV, we only use premium couriers for all our orders. All our parcels are shipped with DPD or Royal Mail and are always sent Signed For to make sure it gets to the right person.
If for any reason your parcel does arrived damaged, please get in touch, and we will be happy to get everything resolved for you. We are always on hand to help!
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