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Can a Gryphon stereo amplifier pass DC?

Can a Gryphon stereo amplifier pass DC? Gryphon’s technical specifications online do not provide the +/- roll-off points, they simply specify the frequency response being 0-350 kHz or 0-400 kHz. That would lead me to believe that any of Gryphon’s better amps are capable of passing DC.

Gryphon amplifiers are capable of passing DC. However, they won’t do it for longer time in order to protect the loudspeakers. Gryphon has DC-servo circuits built-in which will remove DC-content from the signal. If one for some reason puts a higher level of DC into the amplifier than the DC-servo can remove, the error detection circuit will shut the amplifier down in order to protect the loudspeakers.

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Why must we power down Gryphon amplifiers before you connect or disconnect a USB cable with a DAC or a music server?

When there is a USB cable with the DAC or a music server, caution has to be exercised if you want to remove that cable or connect that cable as you must power down the amplifier before doing so. Otherwise, it could cause a short with the DAC, which in turn could blow the DAC and cause other damage to the amplifier itself.

Gryphon product registration

Can I register my Gryphon product online?

Yes. Click this link to register your Gryphon product

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Setting for Gryphon DAC’s to yield an even more natural sound

There are two settings in the Gryphon DAC filter (Kalliope, DAC modules for Zena, Diablo 300 and Diablo 120). What is the difference between them?

We advise that you run the Kalliope in "SLOW" and not "FAST" model. This will produce a more natural (analogue) sound. This actually works the same way for DAC modules for Zena, Diablo 300 and also Diablo 120.

What type of Lemo connectors do we need for the Gryphon Legato Legacy phonostage

There is one pair of Lemo connectors included with each Legato Legacy phonostage.

The specifications for the Lemo connectors are shown in the next page. You can also purchase (spare) Lemo connectors from us. - both the standard for 5-6mm cable diameter (our item no. 1504) - and a version for 8-9mm cables (our item no. 1504 XL)

The connector at the tonearm might be different from model to model. You should get this info from the manufacturer of tonearm or turntable. A common -almost- standard is a female 5pin DIN, sometimes referred to as "SME-plug". We do not have a 5pin DIN plug. - Please also note that our cables are not suitable for this small plug.

You can find examples of wiring cables from SME to Lemo - and other on our website, please see the bottom of the page on "tips and tricks"

NB: One of the major advantages on the Legato Legacy phonostage is the fully balanced design. A cartridge is a balanced source and when the wiring is also fully balanced it is possible to get a noise and hum rejection which is far superior to a typical unbalanced setup. Thus, it is important to make a properly balanced wiring from the cartridge/tonearm to the Legato Legacy.

Gryphon Pandora with Legato Board – RCA input #4

Pandora Preamp's RCA input #4 with Legato Board installed

The Pandora Preamplifier's RCA input no. 4 is still a line-in (input) with the Legato Legacy boards installed. The Legato Legacy add their own Lemo socket inputs.

Gryphon Mephisto Power Amplifier – Stereo vs Solo

What is the difference between mono and stereo version of Mephisto?

Mephisto Solos have more output current (double that of the Stereo version) and a little more class A output power (from 2x175W in the Stereo versus 2x200W in the Solos @ 8 ohms).

From a listening experience standpoint, the Mono/Solo version has a dramatic increase in current capability which transforms into more woofer grip and control, offering a better overall headroom. We should point out that doubling the output current also doubles the dampening factor, giving noticeably more control over the woofers and laying down a considerably deeper foundation underneath the music. This also means that when the crescendo is reached at a end of a Mahler symphony for example, the amplifier still has considerable headroom so that the soundstage does not diminish. nor collapse, something that happens when there is a lack of power. It would be very noticeable on a pretty much any loudspeaker system it drives. Capable of massive current swings, Gryphon Mephisto Solo maintains the dynamic integrity of the audio signal even under the most extreme reactive loudspeaker load conditions. The extraordinary load tolerance of the Mephisto Solo means that it will bring out the best in any loudspeaker.

The inevitable side effects of most monoblocks made by other manufacturers who simply created a bridged version of an existing two-channel product is that it includes doubling distortion, doubling the input impedance (impairing the amplifier’s ability to drive low-impedance loudspeaker loads) and cutting damping factor in half (reducing the amplifier’s control of cone motion at low frequencies).

The Gryphon Mephisto Solo elegantly eliminates these issues by running two stereo channels in parallel (not in series) for unchanged output and voltage, but double the current and half the distortion. As always, extreme high current capability is a fundamental parameter in Gryphon amplifier design. Isolating power amplifier channels in completely independent enclosures offers additional crucial advantages. With separate power supplies, rectifiers, regulation, preamp stages and gain stages, there is no interaction whatsoever between channels. What happens in one channel at any given time (for instance, extreme instantaneous dynamic demands) is entirely independent of and therefore unaffected by anything going on in the other channel.

Total physical separation of the channels eliminates any possibility of inter-channel crosstalk, providing infinite stereo separation.

As a result, the Gryphon Mephisto Solo drives loudspeakers with greater ease, control and authority, delivering a more spacious soundstage in all dimensions, rich detail against a silent background and tighter, more extended bass. Less critically, independent mono amplifiers offer increased flexibility of placement in the listening room.

The quality of sound reproduced by Gryphon Mephisto Solo is completely level-independent. It is a huge amplifier capable of delivering its best at any volume setting, from background levels to full throttle.

Output Current for Gryphon amplifiers

What is the output current of the stereo and mono amplifiers between the different Gryphon amplifiers: Antileon EVO, Colosseum & Mephisto?

Below is the comparison between the different Gryphon Design’s amplifiers. However, please note that if you are comparing with other brands, you MUST compare output current measured under the same conditions, into the same load and same THD figures as Gryphon does not have current limiters in the circuit like some other brands and can draw as much power as need be to measure these figures while other brands probably can’t without tripping some fuses.

Values below are RMS values derived from tech spec on Gryphon’s website. The output current is I = √(P/R)

Output Power (RMS) pro channel:

Mephisto Stereo - 1400W / 1Ohm
Mephisto Solo - 1600W / 1Ohm
Colosseum Stereo - 1250W / 1Ohm
Colosseum Solo - 1450W / 1Ohm
Antileon EVO Stereo - 1200W / 1Ohm
Antileon EVO Mono - 1400W / 1Ohm

Current (RMS):
Mephisto Stereo - = 37,4 A
Mephisto Solo - = 40 A
Colosseum Stereo - = 35,4 A
Colosseum Solo - = 38 A
Antileon EVO Stereo - = 36,6 A
Antileon EVO Mono - = 37,4 A

How many inputs does Legato Legacy have and the different combinations of set ups

How many inputs does Legato Legacy have and the different combinations of set ups

Gryphon does not offer a modification for their Legato for more inputs nor do not they have any plans to add more inputs to the Legato Legacy as a standard feature. In their opinion, the very purist approach is to use one dedicated phono stage for each cartridge. It looks like more than one Legato Legacy Phono Stages can be supplied from one Legato Legacy power supply. For example, looks like you can connect one LL-NPS to the power supply of a LL-SA. However, this requires a custom cable from Gryphon, a “DC-64 cable”.

LL-NPS = Legato Legacy NoPowerSupply = phono stage only
LL-SA = Legato Legacy Stand Alone = phono stage with power supply unit

How many inputs does Gryphon’s preamp, Pandora have?

How many inputs does Gryphon’s preamp, Pandora have?

It has six inputs.
Source selector relays (3 balanced inputs, 2 single-ended, one tape loop). They are also hermetically sealed to prevent the accretion of grime on contact surfaces. You need to know which source equipment of yours is single-ended and which is balanced to find out if this is a fit for your ideal set up and whether Gryphon’s Pandora Preamp offers you the flexibility you need for input hookups.

What is difference between Scorpio and Scorpio S?

What is difference between Scorpio and Scorpio S?

The AKM DAC-chip (AK4397EQ) used in the Scorpio was discontinued. The Scorpio S uses a new AKM DAC-chip (AK4490EQ) The Scorpio S sounds slightly better than the Scorpio (perhaps a little more detailed in the top and slightly tighter at the bottom.

Gryphon does not offer an upgrade from Scorpio to Scorpio S unfortunately.

Gryhon Audio Sonata Allegro with Legato Phono Boards

I am using a Grado Reference cartridge MM. The Legato is set for MM and Ohm board is still set to factory 47k. How can I increase the bias as I have to turn the preamp volume up to the max (38) to get a relatively good listening volume. Would changing the ohms load change the bias or is there some other way to increase the bias. No bias control on the turntable a Well Tempered original.

It is possible to set the Legato to additional 10dB gain in MM-mode. The trick is to set the jumper J1 in MC-mode
(the other jumpers J2, J3, J107 and J108 must remain in MM-mode). The load (input impedance) is fixed at 47k ohm in MM-mode

The highest volume setting on the Sonata Allegro is 44, unless the balance is set to a value different from 00 - or the max volume setting “Lmax” is set to a lower value.

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