Siren

Siren

The Essential Phono Stage

Now, the introduction of Siren, the Ultimate Phono Preamplifier, adds the next component to the world’s finest audio system.Those connoisseurs who understand the magic lurking in the grooves of the vinyl LP will find Siren the essential audio component.

The Drive

Siren shares its sculptural “Nordic Noir” aesthetic with Apex and Commander. Its 4.3” TFT capacitive touch screen with 4mm hardened glass panel is identical to Commander’s, as is its Dual-Mono Power Supply Unit (PSU), which offers a power reservoir whose size and quality is unprecedented in a Phono Preamplifier. Weighing over 83 lbs (38 kg), Siren’s massive PSU features local, fully regulated power supplies for all sensitive voltage amplifying stages. These ultra-low–noise circuits provide a deep black background: the ideal foundation for ultimate phono performance. In addition to separate left- and right-channel power supplies, a third, purpose-engineered supply for all digital functions keeps Digital and Analog circuits totally separate, all the way back to the AC Cords.

Like Apex and Commander, Siren boasts four-layer Printed Circuit Boards with 70µ copper traces: more than twice the thickness of competitive components. These Boards are stuffed with the finest parts available for audio use, including Mundorf MCap ZN Capacitors, low inductance resistors from Vishay, matched transistors from ROHM and ultra-low noise transistors from ZETEX. Sensitive audio circuitry is floated on aproprietary, internal isolation base which employs “Constrained Layers” of Kerrock, Bitumen and steel to optimize component damping and eliminate smearing of fine detail.

A hallmark of all Gryphon components, Siren’s circuit topology features true Dual Mono configuration as well as Zero Global Negative Feedback. And since the phono cartridge is the only true-balanced signal in the audio playback chain, Siren preserves signal integrity by employing a fully discrete, fully balanced circuit topology: a hallmark of Gryphon Phono Preamplifier design for more than 30 years! Befitting a state-of-the-art component, extreme measures have been taken to ensure ultra-low noise operation. Minimal internal wiring and the use of specially selected, PC-Mount XLR and RCA connectors further minimize noise and wiring while enhancing product consistency and longevity.

Siren has been designed for versatility and pleasure of use as well as ultimate audio performance. In order to maximize system flexibility, Siren includes four user-selectable inputs—three XLR and one RCA—to delight the most ambitious analog lovers. MC Load Impedance as well as input can be chosen from the remote handset. 12V Buss Links simplify system power-up and power-down, while a rear-panel USB 2.0 Socket enables simple Firmware Upgrades.

Your Analog Destination

Whether judged by sound quality, aesthetic beauty, build quality or user-friendliness, Siren represents a new standard in analog playback and occupies the pinnacle of Phono Preamplifier design. For those who have the desire and means to own the best in analog playback, there is only one choice. Siren by Gryphon: experience it.

Features

Electronics design by Tom Møller

True Dual Mono configuration

Four selectable inputs, one RCA and three balanced XLR

Zero global negative feedback

Selectable MC load impedance

Selectable MC and MM load capacitance

Selectable gain

Extremely low noise

Fully balanced circuit, a Gryphon phono stage innovation as early as 1994

Fully discrete circuit

​EU CE approval

DC servo coupling

Select premium grade components.

​Premium massive Mundorf MCap® ZN capacitors used for local power supply decoupling

MCap® ZN’s loss factor is ten-times lower than of metallized PP-film capacitors. Additionally, the mass inertia of the tin foil prevents oscillations in the benefit of transparency and spatiality.

Fully regulated extremely low noise power supply for all voltage amplifying stages

Ultra-short signal path

Minimal internal wiring

​Infrared Gryphon remote

​Standby power consumption < 0.5W

Four-layer printed circuit boards with 70µ copper on all layers

PCB-mounted sockets eliminate wiring and shorten signal path.

​Gold-plated Neutrik XLR sockets for up to three balanced Phono Cartridges

​Gold-plated phono sockets with Teflon insulation for one Phono Cartridge

Huge power supply capacitor bank for each channel

​Massive Dual mono external power supply

​Separate linear power supply for both digital and each left/right analog circuits

Firmware upgradeable via USB 2.0 socket on rear panel

Separate mechanical chassis for Power Supply and Amplifier circuits

Decoupled kerrock, bitumen and steel sandwich chassis bottom holding the sensitive amplifier and power supply Printed Circuit Boards, to prevent smearing of the fine audio details

​4.3” TFT capacitive touch screen with 4mm hardened glass in front ·​Intuitive menu structure

​12Vdc link input and output

Infrared Receiver input on rear panel mini jack socket

Separate mechanical chassis for Power Supply and Amplifier circuits

Designed and built in Denmark

Specifications

Three Balanced XLR inputs each channel.

​One Single Ended RCA input each channel

​One Balanced XLR output each channel

Input load Impedance MM: 47K Ohm, MC: from 20 Ohm to 1600 Ohm in selected steps

​Input load Capacitance MM: 0pF to 608pF in selected steps, MC: 0pF, 220pF or 440pF.

Output impedance: 50 Ohm

Bandwidth: RIAA +/-0,1dB

Total Power Supply Capacity, both unit’s: 74.000uF each stereo channel

​Gain: MM +38dB or +48dB @ 1kHz, MC: +58dB or +68 dB @ 1kHz

S/N Unweighted 20-20kHz: MM: 86dB @ 10mv, MC: 70dB @ 0,5mv

​S/N A-weighted 20-20kHz: MM: 90dB @ 10mv, MC: 74dB @ 0,5mv

Channel Separation: Infinite

MENU-controlled functions:

Moving Magnet (MM) or Moving Coil (MC) selection

Additional +10dB Gain option, MM and MC

Moving Coil load impedance and capacitance

Moving Magnet load capacitance

Input Naming

Display Intensity: (100%-75%-50%-25% and Auto Dim ON/OFF)

Restore Settings

​Infra-Red source

MENU Exit

Outer dimensions, W x D x H:

SIREN unit:

480mm x 236mm x 455mm 18.9in x 9.3in x 17.9in

PSU unit:

480mm x 236mm x 440mm 18.9in x 9.3in x 17.3in

Net weight:

SIREN unit:

30,4kg – 67lb

PSU unit:

38kg – 83.8lb

Shipping weight:

Two crates; each 59 x 57 x 38 cm, respectively 45kg – 99lb and 52kg – 114,4lb

Note: Specifications can be changed without notice.