Karan Acoustics
Master Collection
LINEa & PSUa
Preamplifier
(Made In Europe)

Overview 

We proudly present the first product from our new 30th Anniversary – Master Collection range – a state of the art line preamplifier with an outboard power supply unit. We believe this product truly is our “state of the art statement” as every aspect of it reflects 30 years of our knowledge, experience and learning about design and manufacturing execution of uncompromised high-end audio instruments. Our choice of very best passive and active components is a result of endless subjective evaluations and laboratory measurements. Many components from reputable manufacturers have been produced to our proprietary specifications. Particular attention has been given to the topology of printed circuit boards as that happens to be crucial for the best sound quality. Our printed circuit boards are made out of very particular isolation raw material with all copper traces having a thickness of 75um (preamplifiers) and 120um (power supply units and amplifiers). We also exceeded all our previous efforts in the area of design and manufacturing of chassis. In addition to an exceptional aesthetics, the highest available quality aluminium has been used for best acoustic properties and least sensitivity to RF and EMF effects to the circuits therein. Not only, very special components for positioning and placement of PCBs inside the chassis have been implemented in order to further reduce negative mechanical side effects. This, in turn, preserves transient speed, energy, clarity, definition, focus, microdynamics, true harmonic structure of music and overall musicality of the recordings played back. After extensive evaluations, we chose to use CMS (Critical Mass Systems) CS2 isolation/support feet for all our Master Collection products. They exhibit a minimal transfer of mechanical and airborne resonances and feedback to the chassis and electronic circuits inside. Preamplifiers and power supply units have CS2-1.0 isolation/support feet, while all power amplifier use the larger CS2-1.5 model. All our components are internally wired with Cardas Audio pure copper chassis wire.

All electronic circuits have been designed in active class A with no global feedback. This concept eliminates inter-modular distortion (IMD) and all circuits are entirely symmetrical, truly differential (balanced) and DC coupled (no capacitors anywhere along the audio signal route). DC offsets are controlled by proprietary DC servo circuits. Our fully complementary design topology with smallest possible tolerances ensure the perfect balance between the positive and negative audio signal yielding absolutely identical amount of any distortion, noise or interferences that could arise on both signal polarities. Perfect balance of this kind mutually cancels all the unwanted signal by-products, leaving just the purest audio to reach our ears. The output level of the signal (volume control) has been designed as a 4x fully balanced (symmetrical) attenuator with ultra-fast relays and custom made, non-magnetic resistors (0.1% tolerance).  Both the remote control handset and the main control panel of the preamplifier provide a “mute” function and, even more importantly, (on the remote control handset) the absolute polarity (phase) selection. This gives every user an opportunity to select the correct polarity for different recordings (both analogue and digital) as there is no adopted standard among the recording studios and record labels. The preamplifier is linear +0/-3dB from 1.5Hz to 3MHz. Extremely fast and DC coupled circuits guarantee no phase shift of the audio signal or any time aberration within the full audio bandwidth, virtues so important in order to retain a very precise and accurate 3D rendition with very holographic spatial positioning of all the musicians and instruments within a recording. Our all voltage amplifier and output stages use active components capable of transient speed between 30 and 65MHz, all with very close tolerance and designed with lots of attention to finest details, all in order to create and preserve a unique musical experience. The amplitude frequency response is much broader than the audio domain which enables the audio instrument to reproduce all high and low harmonics of fundamental tones (without delay, phase instability and amplitude), often outside the top and bottom extremes of the audio spectrum. Without the correct reproduction of all those harmonics, it is not possible to reproduce precise and accurate tonality and intonation of any musical instrument! Extremely high transient speed combined with a very low noise brings to all our products an unbelievable amount of low-level detail resolution and completely disposes of any masking of true musical information stored in so many available recordings of, equally so, simple and complex musical pieces.

• Contact : Dicky Ng 012-3308893
• Contact : John Yew 016-2861000
• Email    : [email protected]