QUAD QII-Forty (mono power amp)
QUAD QII-Forty (mono power amp)
€4,499.00
The Quad II-forty power amplifier is much more than a tribute to one of the most famous designs in audio – but refined and powerful in the modern sense of the terms. Although the circuit topology has changed a little from the original, significantly better components and a brand new transformer design have been engineered. While still being delicately balanced a fast, crisp and detailed sound is achieved, whilst producing an output current suitable for modern loudspeakers, including our very own ESL. KT-88 output valves work in push-pull configuration, while a choice of 4 Ohm or 8 Ohm taps allow for a wide choice of loudspeaker configurations.
Description
Specifications
Power Output | 40W RMS |
THD @ 700Hz | 0.3% @ 40W 0.03% at 1W |
Residual Hum and Noise | Better than -80dB |
Frequency Response | 10Hz – 30kHz (+0dB, -0.5dB) |
Damping Factor | 20 @ 700Hz (referred to 8 Ohms) |
Power Consumption | 180VA maximum |
Loudspeaker Taps | 4 and 8 Ohms |
Valves | 2 x 6SH7 Input 2 x KT88 Output 1 x 5U4G Rectifier |
Input Sensitivity | 1V RMS |
Related products
Pathos Inpol Heritage
Pathos Inpol Heritage – Integrated Amplifier without Compromises
InPol Heritage represents the projectual legacy of the late Pathos co-founder, designer and inventor of InPol, Engineer Giani Borinato.
The team of Pathos technical designers pushed themselves to the very highest level with this unprecedented project; an enormous amount of time was spent with this product, which is characterised by components of the highest quality and the customary absence of compromises.
The digital bias/gain set technology with intelligent control is entrusted to the same microprocessor which regulates the volume, thus guaranteeing the performance of the amplifier itself and its ability to drive the loudspeakers efficiently.
Thanks to the (optional) HiDac Mk2 converter, music lovers who want the very best from the latest digital sources will find their demands fully met.
InPol (Inseguitore Pompa Linear – Linear Pump Follower) is a system patented by Pathos Acoustics which has enjoyed great success and won many awards.
Inpol devices have a special sonic personality obtainable only by means of this particular circuit design – fully balanced in Class A using a single solid-state component in follower configuration, with high current gain and with voltage gain together. The valve amplifier amplifies the input signal voltage and InPol supplies the current to drive the loudspeakers without any further amplification. In this way, the signal is entrusted to the valves and becomes a true copy of the original, with all the quality, purity and harmonic content of the original.
This technology allows an increase in the theoretical output in pure Class A of between 25% and 50% together with a low output impedance which is fundamental for the damping factor and further improved by the double InPol.
Finishes: Anodized Black
LINE MAGNETIC LM-201IA
LM-210IA – Integrated Amplifier – Single Ended 300B – 2x8W
The integrated amplifier LM-210IA is a Single Ended amplifier with 2x 300B tubes in Class A amplification and delivers 2x8W.
Output transformers are oversized. Listening, the magic of the 300B is total both in the richness of the timbres and the subtlety of the sound scene.
GLOBAL VIEW
Class A amplifier 2x8W RMS
Input stage: 2x 12AX7 Rectifier: 2x 5U4G Drivers: 2x 310A Power stage: 2x 300B
LINE MAGNETIC LM-845IA
LM-845IA – Integrated Amplifier – Single Ended 845 – 2x22W
The LM-845 is a quality upgrade of the old LM-518 amplifier. It delivers twenty-two watts per channel, Single Ended design, Pure Class A Integrated Stereo Amplifier with 845 output power tubes. The drivers are 6P3P tubes, the capacitors are Multicap, American MIT Coupling Capacitors, German MCAP Coupling Capacitors,
All tube Integrated with 12AX7 input tubes for voltage amplification, EL34 driver tubes, 5AR4 rectifier tubes and 845 output tubes. Driver tubes 6P3P can also be replaced by different kinds of driver tubes and you can select which tubes you prefer judging by different sounds. Well selected and matched tubes. No matter it is the Pre-stage or power stage of tubes we select and choose the best matching ones to use on the same unit of the amplifier to get the best sound quality out of it.
Different from other inputs Pre-In offers you a possibility to connect to some other Preamplifier so that you can the LM-845IA as a power amplifier.
User bias control has been used for bias adjustment and one meter has been added to the front plate to allow you to monitor bias with ease. External Hum Balance adjustment for sound adjustment.
Specially designed Toroid transformers made of Z11 Core for power supply and two Japanese Audio grade EI types of output transformers with wide bandwidth are applied. All transformers and chokes are encapsulated and installed separately on the amplifier to avoid and lower the disturbance between each other.
LINE MAGNETIC LM-845 Premium
LM-845 Premium – Integrated Amplifier – Single Ended 845 – 2x30W
The LM-845 Premium is the result of many years of research on the 845 triodes Single Ended design. Thanks to its exceptional design and manufacturing quality, it is fast becoming the absolute reference in the high-end amplifiers world. With a power output of 2x30W, it can be used with most of the existing reference speakers.
The LM-845 Premium is a combination of two units: One is the amplifier unit and the other is Outputs unit. In the amplifier unit the main amplifier and power supply parts are included while in the outputs unit output transformer and speaker outputs parts are included.
Amplifier unit and outputs unit are connected with two separate well-built connectors and cables for which you can put up and down or left and right.
All tube Integrated with 12AX7 input tubes, 310A signal amplification stage, 300B driver tubes and 845 output tubes. Well selected and matched tubes. Tubes we chose are Shuguang 12AX7, Line Magnetic 310A, Shuguang 300B and Shuguang 845.
Two user bias controls for 300B and 845 have been used for bias adjustment and two meters has been added to the front plate to allow you to monitor bias with ease.
Negative Feedback switch is on the front plate that you can choose between two levels of NFB to enjoy the different sound outputs.
In LM-845 Premium it includes eight transformers. Two pieces of power transformers, two output transformers, two coupling driver transformers, two chokes. In order to have a stable and better power supply, we have designed two pieces of specially designed Toroid power transformers in Balance. EI type of output transformers is installed in the outputs unit separately to lower interfere from the external radio frequency.
Pathos Classic One
Pathos Classic One – Integrated amplifier
After having won over the international audiophile community with state-of-the-art reference amplifiers, to conceive a product with a set price point as the main design limit has been a true challenge to Pathos.
The Classic One project was initiated to transfer, in a more affordable amplifier, all the know-how and expertise acquired developing reference products.
Classic One represents a new standard in its price category: it successfully blends in a single chassis a preamplifier and power amplifier, completely separated from each other and provided with their own individual power supplies.
The pre-stage – or, better, the preamplifier – is purely tube, balanced, pure Class A, extremely low noise, with high intrinsic linearity and without any feedback. It provides an exquisitely tube sound in terms of transparency, air, harmonics and refinement… in one word, musicality.
The power stage is a solid state power amplifier, high bias current, Class A/AB in order to adequately drive every load. It provides the sound with speed and dynamics, without influencing the tube nature of the sound. The volume control is motorised and remote controlled, the remote itself is in solid wood. Power supplies are over-dimensioned and stabilized.
Selected components, pure silver Pathos signal cable wiring, gold plated terminals, high-quality materials and refinement at its highest standard are additional benefits provided with the Classic One.
Together with such sound performance and overall quality, the Classic One is offered at a price that clearly demonstrates a philosophy of value for money. This is possible thanks to an aimed design approach, coupled with extremely accurate engineering and superior aesthetic form.
Pathos Inpower
Pathos Inpower – Monoblock Power Amplifier
InPower monoblock power amplifiers represent the evolution of the INPOL® circuit, originally created with the birth of the T.T. integrated amplifier.
The purpose of InPower project was to design an amplifier able to drive all loudspeakers.
Even in spacious listening environments. All this with the same state-of-the-art sound quality which has been universally bestowed upon the T.T.
LINE MAGNETIC LM-513PA
LM-513PA – Mono Amplifier – Push Pull 845 – 1x160W (Price for a pair)
The mono amplifier LM-513PA is a Push-Pull amplifier with 4x 845 tubes in pure Class A amplification and delivers 1x160W. The use of high-quality components (Multicap, Philips BC filter, Motorola) hand-made construction with the finest point-to-point wiring for the most part is the guarantee of exemplary reliability.
LINE MAGNETIC LM-805IA
LM-805IA – Integrated Amplifier – Single Ended 805 – 2x48W
The Line Magnetic 805iA uses single-ended triode 805 tubes and operate in pure Class A. It delivers 2x48W power. It has 3 unbalanced line inputs, 1 bypass input and 4, 8, 16Ω output groups. The rear-illuminated front panel meter is used to adjust the polarization of the tubes.
The use of high-quality components (Mundorf N-Cap capacitors, ALPS potentiometer) wired in the air for the most part is the guarantee of exemplary reliability. Its power and current capacity allows it to manage a very wide range of speakers. The use of the legendary triode 805 offers a listening to an unusual musicality.