SI-300.2d
High-current solid-state integrated amplifier with digital section, in the Cary Audio SI-300 line.
Price, selected version, availability and estimated lead time are confirmed individually before any order.
Discuss purchase and listeningCatalogue information verified on the 19 June 2026. Official Cary Audio page.
Summary
The SI-300.2d is a solid-state integrated amplifier with a converter and digital inputs, thus it is listed under both integrated amplifiers and digital sources in the catalogue.
Key Points
- Solid-state integrated amplifier in Class A/B, featuring a fully balanced design.
- Integrated AKM converter with digital inputs: USB, AES/EBU, coaxial, optical, and Bluetooth.
- RCA analogue inputs and balanced XLR inputs.
- Home theatre bypass input for integration into a multichannel system.
- Subwoofer output.
- Network and Wi-Fi connectivity for app control (does not include network music services).
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Purchasing, listening and delivery
Ordering and system matching
Ask about the selected version and matching with your amplifier, sources and room. Supply arrangements will be confirmed in the quotation. An enquiry does not confirm a sale.
Listening sessions and demonstrations
You can request a listening session by appointment at our Barcelona office (Carrer de Modolell, 57). When we arrange the appointment we confirm which equipment is available to hear, along with the date and time.
Home demonstrations are not offered for this product.
Delivery and setup
Delivery, its cost and the estimated timing are confirmed in writing in your quotation, for your delivery address and before you accept it.
Installation and setup can be requested as an additional service. We assess feasibility and quote it separately.
Editorial Reference
Model context
Position within the Cary range
Fully balanced high-current solid-state integrated amplifier, featuring an AK4490EQ digital section and both analogue and digital inputs.
Why choose this model?
When seeking high balanced power, an integrated DAC, and cinema bypass, but without relying on network playback as in the DMS platform.
For which system does it make sense?
- Integration of digital sources (USB, AES/EBU, SPDIF, Bluetooth) and analogue inputs in a 300 W/ch (8 Ω) amplifier.
- Home cinema systems with Home Theater Bypass to a multichannel processor.
- Users seeking integrated digital conversion without a network player featuring Connect services.
Differences compared to similar models
Unlike the DMS-300A, it does not include network playback with third-party Connect applications: Ethernet and Wi-Fi are solely for app control. It offers greater power than the DMS-300A and focuses on digital-analogue integration compared to the pure DMS players.
Architecture and Design Decisions
Fully balanced high-current amplifier featuring AK4490EQ and 8× oversampling. USB via XMOS supports up to DSD256; digital inputs include SPDIF and Bluetooth with oversampling, though not via USB as per the manual. Includes cinema bypass and subwoofer output; stated power consumption is 950 W.
Compatibility and Use
Pair with the SLP-05 or ES amplifiers for cinema; XLR/RCA inputs from the DMC-600SE or analogue sources. Ethernet/Wi-Fi is solely for the Cary control app.
Official specification limits
It is not a network player: the Connect platform documented in the DMS range should not be referenced. Oversampling is not applied via USB according to the manual.
Related Technologies: Solid State — ES Series .
FAQ
Frequently asked questions
- Does the SI-300.2d play network music services?
- No. Its network connection is app control only; it does not play network services. It is a fully balanced solid-state integrated amplifier with a built-in DAC.
- Does it have a DAC and home-cinema bypass?
- Yes. It integrates a DAC (AK4490EQ, DSD256 over USB) and offers a Home Theater Bypass to fit into a cinema system while keeping its stereo preamplifier.
Technical Specifications
Specifications
- Output power
- 300 W RMS per channel (8 Ω); 450 W per channel (4 Ω)
- Topology
- Solid-state amplification in Class A/B, fully balanced
- Converter (DAC)
- AKM AK4490EQ; 8× oversampling
- Digital formats
- DSD up to DSD256 (via USB)
- THD (amplifier)
- < 0,5 % (SMPTE-1M)
- Signal-to-noise ratio
- > 100 dB (ponderada A)
- Audiovisual Integration
- Home Theater Bypass
- Oversampling
- Active on SPDIF and Bluetooth inputs; not on USB (as per manual)
Technical Specifications
Connectivity
- Inputs
- Analogue: RCA ×2 (10 kΩ) and balanced XLR ×2 (20 kΩ). Digital: USB (XMOS, DSD256), AES/EBU, coaxial ×2, optical, Bluetooth aptX
- Outputs
- Pre-amplifier/subwoofer output (RCA); coaxial and optical digital outputs
- Network and Connectivity
- Ethernet and Wi-Fi for app control only; no network music services
- Network Control
- Ethernet and Wi-Fi for control via the Cary app (without network playback from third-party services)
- USB
- XMOS reception; DSD up to DSD256
- RCA input impedance
- 10 kΩ
- XLR input impedance
- 20 kΩ
Technical Specifications
Design and Construction
- Power Supply
- Consumo 950 W
- Dimensions
- 17.25 × 6.0 × 18.0 inches (W × H × D)
- Weight
- 52 lbs
Specifications compiled from official Cary Audio sources, reviewed on 19 June 2026. Unverified data is not published; unavailable fields are omitted.
Digital Ecosystem
Connectivity and Services
Capabilities as stated by Cary Audio in the official specification sheet for this model. The absence of a service indicates it is not listed in the manufacturer's documentation, not that it is silently excluded.
Bluetooth aptX
Bluetooth connectivity with aptX codec for wireless sources.
App control
Ethernet and Wi-Fi for control via the Cary app (iOS / Android); does not imply streaming services.
Documentation
Official Manuals and Resources
Links to PDFs and guides published by Cary Audio on caryaudio.com. They open in a new tab.
- ManualOwner's Manual (SI-300.2d)
Integrated amplifier manual: digital and analogue inputs, cinema bypass, and specifications.
- BrochureProduct Sheet (SI-300.2d)
Commercial summary with main features of the SI-300.2d.
Technologies
Engineering Behind This Equipment
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Solid State — ES Series
Alongside valve technology, Cary Audio develops high-current solid-state amplification. The ES series encompasses stages designed for both two-channel high fidelity and home cinema systems.
In the press
What the critics have said
“the Cary showed its mettle by providing both the generous soundstage and low-volume dynamics”
Home Theater HiFi · Piero Gabucci · 2017
“It is a warmer sounding amplifier that majors on tonal saturation”
Pursuit Perfect System · Terry Ellis · 2021
Brief excerpts from specialised press reviews, in their original language with a link to the source. They reflect the opinion of each publication.
Launch context
Origin and Journey
Introduced in 2016: solid-state integrated amplifier with digital section.
Recommended Applications
Where it fits
- High fidelity
Integrated Amplifiers. For those seeking a complete and straightforward system: a preamplifier and power amplifier combined into a single unit, requiring only the connection of sources and speakers.
Digital Sources. For those who listen via network, files, or disc and seek a meticulously crafted digital source as the starting point of their system.
Within the Cary catalogue
Its position in the range
The SI-300.2d is part of Integrated Amplifiers and Digital Sources in the Cary Audio catalogue.
- Families
- Design family
- solid state
Reference
More context about this model
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Ecosystem
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Related Products
Other products in the catalogue
DMS-300A
Network player from the DMS platform that integrates amplification: a digital source and an integrated amplifier in a single unit.
Request information →
SLP-05
Cary Audio's reference valve preamplifier, a distinguished example of high-end line control within the brand's range.
Request a listening session →
SA-200.2 ES
Stereo solid-state power amplifier from the ES series, suitable for both high-fidelity audio and home cinema applications.
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