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GRYPHON DIABLO 300 INTEGRATED AMPLIFIER

$26,995.00

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In updating the Diablo, the Gryphon engineering team faced a considerable challenge. In addition to Product of the Year awards including Lyd & Bilde (Norway), 6 Moons.com (USA) and Haute Fidelité (France), many of the most critical professional listeners have been inspired to effusive praise, as in this evocative turn of phrase from Hi Fi Choice (UK): ”Sounds like God’s own stereo.”

And there are many more:

“Ultimately, Gryphon’s Diablo is a contradiction in terms, because the sound it makes is truly Angelic.”  – Australian Hi Fi

“Spectacular design and equally spectacular sound quality. An ultra-cool potent amplifier for demanding loudspeakers and demanding listeners.” – Lyd & Bilde (Norway)

“The phenomenal level of resolution, detail retrieval, ambience recreation and dynamics this amplifier is capable of.” – 6mooms.com

The original Diablo also found its way into the pages of the mainstream press, where the Sydney Morning Herald (Australia) praised its “exceptional sound quality, even when driving speakers other amplifiers have found difficult to handle.”

Taking It Further

Fortunately, in designing the Diablo 300, the Gryphon crew had the luxury and privilege of being able to draw heavily on concepts, components and technological breakthroughs that emerged during the evolution of the much lauded Gryphon Pandora preamplifier and Mephisto power amplifier.

The ultra-transparent, fully balanced volume attenuator topology fully exploits the two balanced inputs. Unlike the vast majority of solid state volume controls that typically introduce dozens of resistors in the signal path, the Diablo 300 employs no more than two for any given level setting.

The extreme wideband frequency response of the Diablo 300 extends from 0.5 Hz to 350 kHz and its prodigious 300 Watt (8 Ohms) power output capability represents a significant increase over the original Diablo. The extreme high current capability of the Diablo 300 allows it to double its output to 600 Watts in a 4 Ohm load and deliver a massive 950 Watts into 2 Ohms.

As these numbers confirm, the Gryphon Diablo 300 will remain rock solid when confronted with even the most viciously reactive loudspeaker loads.

Diablo 300 maintains a power reservoir capacity of 68,000 microFarad and employs local active shunt regulators for superior noise suppression compared to the Zener diode regulated low-voltage supplies of the original Diablo.

Because it operates without negative feedback, the Gryphon Diablo 300 avoids both the intrinsic time-delay caused by sending the output signal to the input for a comparator loop and the resulting intermodulation distortion between time-offset signals.

Further highlights include massive, overkill power supplies, high Class A/B bias, state of the art audiophile components throughout, mounted on military specification dual- and four-layer printed circuit boards with virtually no point-to-point wiring.

Diablo 300 utilises new, low-capacitance pre-driver transistors and increased current in the voltage amplification stage for extended bandwidth and increased slew rate. The wire-wound emitter diodes in the original Diablo output stage have been upgraded to non-inductive types.

The power supplies for various amplification stages employ only polypropylene coupling capacitors in parallel with high-grade electrolytic capacitors.

To dissipate heat generated by the increased power of the Diablo 300, the unit is fitted with twice as much heatsink area as its predecessor. The highly efficient recessed heatsink array is cleverly integrated into the smooth exterior for a stylish statement that takes the Diablo 300 architecture well beyond the realm of undistinguished laboratory styling common to so many High End audio components.

Style and Ease of Use

Despite its substantial size and heft, the satin black, brushed aluminium chassis and gleaming black acrylic faceplate of the Gryphon Diablo 300 exude luxurious elegance that will enhance any interior. Form and function come together as the non-magnetic, non-resonant chassis and isolated power supplies for pre and power stages and control and display functions shield against interference.

The Gryphon Diablo 300 is controlled via an intuitively simple touch-sensitive front panel user interface and a software-based menu display that allow the owner to customise key functions. Future software updates can be installed via flash memory as they are developed.

A large alphanumeric Vacuum Fluorescent Display prominently exhibits the name of the active input and the current volume setting. Personalised input source names up to eight characters long can be assigned in the display.

All functions are accessible from the front panel or the striking remote wand. So there are no mechanical parts to wear out or become noisy.

Exclusive Features

Diablo 300 incorporates a full-range subwoofer output and, for use in a surround setup without compromising the stereo performance of the Diablo 300, an AV throughput allows the Diablo 300 to drive the two main channels without the need to rewire or recalibrate the system when switching between stereo and surround operation.

Diablo 300 can be configured for automatic level matching of inputs to protect the owner’s ears and equipment when switching between sources with varying output levels. The volume control is linked to the Mute control to prevent increasing volume while the muting circuit is active. This eliminates the risk of loudspeaker damage through accidental overpowering.

For further protection, a fixed start level and fixed maximum level can be selected in the Diablo 300 setup menu.

An intelligent, non-invasive protection system constantly monitors operational status and, in the unlikely event of any problem, shuts down quickly and safely to protect your investment.

Custom-built Gryphon speaker terminals accept bare wire, spade lugs or banana plugs for a tight, reliable connection and 12V DC link inputs and outputs are provided for integration with a home automation system.

  • 2 x 300W (8 Ohm), 2 x 600W (4 Ohm), 2 x 950W (2 Ohm)
  • True Dual Mono configuration
  • Zero negative feedback
  • Microprocessor-controlled 43-step fully balanced relay volume attenuator for best sonic performance based on a minimalist contingent of ultra-precision resistors
  • Ultra-short signal path
  • Minimal internal wiring
  • Military spec. dual-layer and four-layer printed circuit boards with up to 105 micron copper traces
  • Dual Mono Holmgren toroidal transformer with vacuum treated core and windings to virtually eliminate mechanical noise
  • PCB-mounted sockets eliminate wiring and shorten signal path
  • New, high-speed, discrete single-ended Class A input buffer for best possible sonic performance
  • Gold-plated Swiss Neutrik XLR sockets for two balanced sources
  • Gold-plated phono sockets with Teflon insulation for 3 inputs and 2 outputs
  • Fixed-level AV throughput for uncompromising integration with surround preamplifier
  • Input level matching to prevent abrupt level changes
  • Large Vacuum Fluorescent Display for easy legibility
  • Adjustable display lighting (100%, 75%, 50%, 25%, Off)
  • Backlit touch-sensitive front panel controls
  • Optional MM/MC phonostage module
  • Optional PCM/DSD DAC module with one USB, 2 x SPDIF, 1 AES and 1 optical input
  • 12V DC link input and output
  • Flash memory upgrades via key fob
  • Local shunt regulators for optimal noise suppression
  • Non-invasive protection system
  • Infrared remote control
  • Input for external iInfrared receiver
  • Standard power consumption: less than 0.5 W, conforming to latest EU standards
  • EU CE approval
  • Designed and built in Denmark

Vinyl and Digital Options

At the time of original purchase or as the need arises at a later date, Gryphon Diablo 300 can be fitted with a specially designed Gryphon DAC PCM/DSD module based on the innovative, award-winning Gryphon Kalliope digital-to- analogue converter. The module adds five digital inputs (USB, balanced AES 115 Ω, optical and dual S/PDIF 75 Ω). USB can process PCM up to 32-bit/384 kHz as well as DSD (Windows OS up to DSD512, Mac OS up to DSD128, Linux OS up to DSD128 DoP).
The remaining digital connections can handle PCM up to 24-bit/192 kHz.

This future-proof digital module is ready for any current or foreseeable high resolution digital format.

And, in the finest Gryphon tradition, the Diablo 300 offers the option of an exceptional MM/MC phonostage for the dedicated enthusiasts who continue to enjoy the musical treasures etched in the grooves of the long-playing, black vinyl disc.

Gryphon PS2-S MM/MC Module product page
Gryphon Diablo 300 DAC Module product page

Technical Specifications
ANALOG PRODUCTS
Diablo 300
Features
Dual monoYES
Class AA/B
Green Bias
DC-couplingYES
External Power Supply
MultiVoltage OperationNO
Negative FeedbackNO
AV-inputYES
Remote controlYES
Auto Power Up / Down
+12V link (power up/down)YES
Input for external Infrared ReceiverYES
Microprocessor controlledYES
Software upgradeYES
AMX / Crestron
Wireless data transmission
Vaccum Fluorescent DisplayYES
Touch ButtonsYES
Balanced circuitYES
MM/MC, PS2Optional
DAC module, PCM/DSDOptional (Diablo 300 DAC module)
Modular built
HDCD
Upsampling
Converters
Electrical
Output Power (RMS) pro channel in 8Ohm300W
Output Power (RMS) pro channel950W / 2Ohm
MAX Output Power (PEAK) pro channel
Output level balanced, max
Output level single ended, maxSub Out: +12dB
Maximum input level. 1kHz
Noise, Unweighted, 20-20000hz< -85dBu
Noise, A-weighted< -88dBu
Dynamic range
Distortion (THD+N)< 1%, 300W
< 0,05%, 50W
Input sensivity0,617V
Gain+38dB
Bandwidth (-3dB)0 – 350KHz
Channel Separation> 120dB
Input impedance, balanced (20-20000Hz)40KOhm
Input impedance, single ended (20-20000Hz)20KOhm
Output impedance (20-20000Hz)0,019Ohm
Balanced inputs, pr. channel2 x XLR
Single ended inputs, pr. channel3 x RCA
Balanced outputs, pr. channel
Single ended outputs, pr. channel2 x RCA (tape +
sub)
Digital outputs
Speaker outputs, pr. channel1 set
Power consumption (Stand-by)<0.5W
Power consumption (Maximum)1900W
Power consumption (Idle)200W
Power Supply Capacity, preamp
Power Supply Capacity2 x 68000 uF
No. of AC inlets / cable plug type1x IEC C13
Mechanical
Size (W x H x D) cm, netto48×23.5×46
Weight, netto (without optional modules)38.1 kg
Shipping weight and dimensions (L x W x H)50 kg
55x57x37cm
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