" The first Goldmund Integrated to incorporate TELOS amplifier technology has arrived... "
Monday 16 June 2008
By Nigel Crump
The 390 is no ordinary integrated...
no ordinary circuit...
Based on the long experience accumulated by Goldmund since 1984 in its Mimesis Amplifier design and the successive Job amplifier circuits, the NEW Telos amplifier circuit is a magnificent solution to the problems inherent in amplifier design.
To minimize the vibrational feedback loop existing between the output stage of the amplifier and its input stage, the 2 parts of the Telos circuits are now separated in two printed boards with Mechanical Grounding between them. So, the vibrations generated by the output stage during highly dynamic signals are not transmitted to the low level input stage, which are very sensitive to microphonic effect.
A considerable reduction of the intermodulation has been achieved by improving the linearity of all stages (new Mosfets, new driving transistors, more balanced design), but also by considerably decreasing the time distortion. Based on the Goldmund Leonardo research program, the Telos uses a high bandwidth circuit with minimal group delay distortion, taking great care of the cut-off distribution nodes so the group delay distortion is not measurable inside the audio bandwidth, a first in the industry.
The Telos amplifiers include a completely new protection circuit capable of disconnecting the power supply of the amplifier within 10 nanoseconds, in order to protect the speakers from the extremely fast energy burst it can generate. To absolutely suppress any influence of the protection circuit, it is not connected to the main circuit but detects current changes through a new “floating” device implemented by Goldmund for the first time in an audio design.
One of the most important sonic improvement provided by the new Telos circuit is due to its much better “driver control”. Obtained by lowering the output impedance of the amplifier to an extreme degree, it is achieved by the direct coupling, without serial protection relay, of the output Mosfets and by the unusually low impedance of the amplifier power supply, using several fast and low impedance transformers in parallel, ultra-fast rectifiers and multiplying low impedance capacitors of a new type for filtering.
no ordinary integrated...
Equivalent to a combination of a Mimesis 27.3 and a Telos 150, the NEW Telos 390 delivers a breathtaking performance.
The beautiful single-box chassis encases a heart of true sonic finesse and the power to drive the most demanding of loudspeakers.
It is arguably one of the best Integrated Amplifiers ever made for professional and domestic uses. The Telos 390 has to be heard to be believed!
Specifications:
- 2 x 195W on 8 Ohms before clipping
- 5 analogue inputs
- 3 digital coaxial inputs with built-in Alize4 D/A converter
- Size: 44cm (17’) x 41cm (16’) x 10cm (4’)
- Weight: 22kg (49lb)
External Link: www.goldmund.com
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