We have a few new options we are offering on the Dragon Inspire Amp. I apologize for not updating the page sooner but between Rocky Mountain Audio Fest and February, I have a hard time finding enough time to get HeadFi posting done. That being said we are offering a couple of upgrade options.
[COLOR=222222]The Dragon Inspire is a purest design. It is a very clean short signal path. There are no capacitors, resistors or other passive components that make up the circuit. The signal enters the RCA jack, travels to the DACT stepped attenuator, then the 6SN7 tube, followed by the Output transformer and exits via the Headphone Jack or Preamp RCA. The Tubes become very important in this sort of circuit. The better the tube the better the end result. You can also very drastically change the tonality based on the tube you choose to use. Each tube has a very different sound signature or flavor. [/COLOR]
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[COLOR=222222]Because of this purist approach, there is no gain stage or preamp circuit. Thus the DACT attenuator is the volume control and/or preamp circuit. Thus with some headphones that are not sensitive or have a higher impedance rating, this will mean a little less flexibility in the amount of steps you have to control the volume. Do not get gain confused with output power. As the amp has plenty of power for most headphones. For people that are in the situation that they need more gain or volume control flexibility, we offer the Lundahl transformers. The Lundahl transformers which are input transformers and are placed between the RCA input jack and the DACT attenuator. They offer a 1 to 2.5 ratio. What they do is clean up the incoming signal, as all transformers can do, and increase the gain of the amp. So now where as the Inspire might need the volume control set very high to get the desired volume it is now maybe half way. This will also boost low output signals from some Phono Preamps out there or when using a low output cartridge that gets very little boost from the Phono Pre. In my opinion, no one makes a better transformer than Lundahl and this does not just increase the gain but adds a little more detail and definition to the sound. Upgrade cost is same as if you order with the amp or if you send in for the mod: $250[/COLOR]
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[COLOR=222222]We are also offering a Preamp output option. We never thought about using the amp as a Preamp until we released the new Dragon Inspire QMB-25 Mono Block Amplifiers as seen
Here. Just to experiment we used it with the amps and were blown away. Thus we added input RCAs and a switch to mute the headphone amp we switching over to use as a Preamp. All are placed on the back of the unit. You can find pictures
Here. Upgrade cost is same as if you order with the amp or if you send in for the mod: $100. Customer is responsible for shipping cost both ways.[/COLOR]
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[COLOR=222222]Also if there is anyone out there with a hum issue in right channel from the early units please contact us. The hum issue that was brought up in the early onset was fixed quite a while back. Again I apologize for lack of updates. We just had to reroute some innards. It was inconsistent so we could not figure out what people were talking about early on in this thread. All the units were dead quiet here at the shop before they went out. But environment situations made the issue arise in a few units. We are happy to take care of this issue at only the cost for you to ship the amp to us. It is a very simple fix.[/COLOR]