Block CVR-100+ MKIII silver

The Block CVR-100+ MKIII perfectly embodies the philosophy of its German manufacturer: making audiophilia accessible without sacrificing quality. This third-generation all-in-one system brilliantly combines the legacy of German engineering with the demands of modern streaming, creating a natural bridge between music lovers attached to physical media and those who have embraced digital formats.

German Heritage and Exemplary Build Quality

Audioblock GmbH continues a manufacturing tradition that is evident from the very first handling of the CVR-100+ MKIII. The fully aluminum chassis features an imposing front panel complemented by solid metal sides 1.3 cm thick, adorned with heat-dissipating fins across their entire surface. This approach is not just aesthetic: it ensures optimal thermal management and structural rigidity, both of which contribute to sound quality.

The internal assembly reveals the same attention to detail, with a high-power toroidal transformer shielded to isolate the amplification stages from the CD player. This robust construction, weighing 9.4 kg, reflects a philosophy where durability takes precedence over cost-cutting.

Audiophile Core: Amplification and Sound Reproduction

The class A/B amplification delivers 52 watts into 8 ohms and 60 watts into 4 ohms per channel. These integrated modules, likely based on Texas Instruments LM3876 chips, offer a sound described as “airy and open” by reviewers of the previous model.

The frequency response ranges from 10 Hz to 26 kHz, comfortably covering the audible spectrum with ample headroom at both extremes. The tone control, often overlooked on modern devices, allows you to tailor the sound to personal taste and the acoustic constraints of your listening room.

Modern Connectivity and Multi-Format Streaming

The CVR-100+ MKIII stands out for its comprehensive connectivity, especially its bidirectional Bluetooth module. This transceiver function not only allows it to receive signals from a smartphone but also to transmit to wireless headphones—a rare feature in this product category.

Dual-band Wi-Fi (2.4 and 5 GHz) provides access to streaming services via the UNDOK app. Spotify Connect is natively integrated, while DLNA and UPnP protocols allow access to music libraries stored on your home network.

Digital inputs (three optical, one coaxial, one USB) support high-definition formats up to FLAC, while the four analog RCA inputs and the phono input maintain compatibility with traditional sources.

Multi-Room and Block Ecosystem

One of the MKIII’s innovations lies in its multi-room capabilities, allowing you to connect up to five Block speakers to create a distributed audio system. This proprietary approach ensures perfect synchronization and centralized management via the UNDOK app, though it limits your choice to the brand’s products.

This closed ecosystem strategy offers the advantage of easy installation and reliable operation, at the expense of less flexibility in choosing satellite speakers.

Ease of Use and Unified Control

Despite its rich feature set, Block has prioritized accessibility with three complementary control modes. The large color display makes local navigation easy, while the UNDOK smartphone app centralizes all functions. More uniquely, the system can learn commands from an existing TV remote, integrating seamlessly into a home theater environment.

The 6.3 mm headphone jack, hidden behind a front cover, preserves the unit’s aesthetics while offering high-quality private listening. This attention to detail is also evident in the dimmable display, which adapts to ambient lighting conditions.

Thoughtful Evolution from the MKII

The transition from MKII to MKIII represents a considered evolution rather than a revolution. The core construction and sound quality remain intact, while improvements focus on modern connectivity and user experience. The addition of Bluetooth transmission, the color display, and multi-room capabilities meet current expectations without compromising the product’s identity.

Versatility: Reconciling Tradition and Modernity

The CVR-100+ MKIII excels in its ability to satisfy a wide range of users. Traditional audiophiles will appreciate the quality of the HDCD-compatible CD player and the phono input for vinyl. Modern users will find immediate access to an almost unlimited music catalog through streaming functions and internet radio.

This duality is also reflected in listening modes: the two pairs of speaker outputs allow you to switch between a main living room setup and a secondary zone, while the Bluetooth transmitter offers wireless headphone listening so as not to disturb others.

Positioning and Use Cases

The CVR-100+ MKIII targets users who care about quality but are reluctant to deal with the complexity of a separate system. It is particularly suited to situations where space is limited or where aesthetics call for a compact solution. Its versatility makes it an ideal candidate for a secondary setup or a main system in a medium-sized environment.

Compatibility with TV remotes makes it especially suitable for home theater installations, where it can serve as an amplifier for the front channels while retaining its standalone music functions.

Technical Specifications

Audio Performance

• Output power (4 / 8 Ω): 2 × 60 / 2 × 52 W
• Total harmonic distortion: < 0.01% (at 1 W)
• Signal-to-noise ratio: > 88 dB
• Frequency response: 10 Hz - 26 kHz
• Tone control: bass / treble ± 14 dB

Connectivity

• Analog inputs
  • 4 × stereo 300 mV
  • 1 × moving magnet phono 5 mV
• Digital inputs
  • 1 × coaxial
  • 3 × optical (S/PDIF)
  • 1 × USB
• Analog outputs
  • 6.35 mm headphone jack (front panel)
  • Variable preamplifier output
  • Fixed recording output
• Speaker outputs: A / B / AB switchable

Radio and Streaming

• FM frequency band: 87.5 - 108 MHz
• DAB+ frequency band: 174.928 MHz - 239.200 MHz
• Internet radio: over 30,000 stations worldwide
• Station memory: 40 internet radio / 10 FM / 10 DAB+
• File formats: MP3
• Streaming: Bluetooth transmitter and receiver
• Streaming services: Spotify Connect-Ready
• Network: Wi-Fi 2.4 and 5 GHz
• CD compatibility: HDCD, CD-R, CD-RW, MP3

Power Supply and Consumption

• Power consumption (off): < 0.01 W
• Power consumption (network standby): 2.5 W
• Power consumption (operating): 300 W (max.)
• Power supply with main switch: 230 V AC - 50 Hz

Physical Specifications

• Dimensions (W × H × D): 430 × 118 × 327 mm
• Weight: 9.1 kg

Equipment and Features

• Color display
• Metal chassis
• System remote control
• Logo engraving on top plate
• Remote control learning function