BADA HI-FI EUROPE

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Product Name:Class A stereo power amplifer EURO 1500

Model:Purer3.8SE

Brief: Designment come from the flagship product,preamp and poweramp can be used independently, make your audio equipment more Hi-end.

Hybrid,perfect performance

Purer3.8SE is class A stereo power amplifier

The original edition is our flagship product Purer3.8,features below:

1.     Separate Preamp and poweramp:3.8SE can be used either as a hybrid

amplifier,or a high quality tube preamp or a transistor power amplifier, a multi-purpose machine to increase the fun of playing hifi.

2.     Tube-transistor design: The preamp adopt China's Patent "absolute

linear audio amplification" technology,used tube to achieve linear amplification, no need to rely on negative feedback, the distortion of circuit can be very small, so the transient Characteristics of circuit si quite good, detail and emotion of music can restore true. After eight years of research the Bada audiophile circuits, input stage use single op amp, reliable and stable.Current promote use high-power FET and current can be high up to 250mA,enough push force to make the music perfect. Output use three pairs of three high-power tube parallel working in A class. Whole circuit is perfectly designed, it can give full play to the each components,play up the strengths and avoid weakness, play fully on sweet of the tube of, plump of the MOSFET and stronge of the transistors.

3. Reasonable structure and layout: The chassis of machine is very solid , heat sinks and panel made in aluminum alloy, giving the feeling of heavy-weight. Firm and stable case has a good unti-shock performance, and tapered foot of the machine will further effectively reduce the shock. laid a good foundation for Audiophile Voices. Layout inside is very reasonable and beautiful, circuit board and transformer is sub-body designment,use thick iron plate for isolation.Circuit distributed in the latter part, three power transformers are based in the first part, non-interfering. Similar with power sub-design ,make the music more clear, more accurate sound field positioning.

4. Powerful power supply system: Poweramp use two big transformer to supply left and right channels, preamp use audiophile R-type and E-type transformer, each part is separately be supplied, reduce the crosstalk, the background of music is more quiet.
5. Component selection: Purer3.8SE use various of high-level components, including military-grade ultra-small tubes, France Solen and Germany WIMA capacitance, coupling capacitor MKP10, Toshiba FET tube J200/K1529, three high-power tube A1215/C2921, High grade oxygen-free copper input connector and Lotus input terminals.
6. Balance input and remote control functions, in line with modern tastes, is the pursuit to a full range of Hi-end amplifier.

Specifications:
Output power: A class 80W +80 W (8Ω)
AB-type 130W +130 W (8Ω)
Distortion: ≤ 0.6%
Frequency Response: 10Hz-35kHz (-1dB)
Signal to noise ratio: ≥ 90dB (A standard)
Supply voltage: ~ 220V 50Hz

Product Name:Class A integrated power amplifer

Model:Purer3.8(20 anniversaries limied edition)

Brief: The materials used are more sophisticated, sound are more delicate, full, sense of hierarchicy is better.

Model: Purer3.8(20th anniversary limited editon) A class integrated Hi-end amplifier.

This limited edition has the  same circuit structure as 06 edition’s,but uses more particular material: coupling capacitance the Germany M-cap is replaced by USA Kimber in Preamp input;Russia 6SN7 tube replace the homemade tube in voltage amplification, sound is more delicate and full; hierarchy sense is better.To redound to customers,the manufacturer offer one set of Hifi OCC cable( Power cord value ￥680，RCA cable value ￥680,Speaker cable value ￥680) as free gift,upgrade your amplifier at once.The brand of 20th anniversary limited edition is silver white metallic paint(the difference with 06 editon), the 06 edition is black font painting. 

The appearance of a distinct personality

For a high-grade power amplifier, its appearance and musical performance is equally important,and for a maturer industry in developing amplifier, not many innovative appearance design can be found.But famous foreign brands,all have its own flagship product,whose shape can fully show their brand personality and values.The appearance of Bada Purer3.8 can completely show the style of  our homemade flagship products,a unique appearance.Noble, solid panels, a huge arc-shaped radiator and fine line teeth, panel scaleboard with perfect precision and noble&valuable knob,arc-shaped audio instructions area,cone unti-shock foot, harmony color and exquisite technology, all have been carefully designed,which exudes the charm of a Hi-end player. No matter from which angle you enjoy, this amplifier is  very beautiful, excellent, reflecting the great progress of Chinese Hi-Fi.

Feature of circuit

Purer3.8 is tube amplifier of a unique design, from pre input and voltage amplification to current amplification are all completed by vacuum tube, while the output is using a new design of the electronic impedance converter.

As everyone knows, the sound of tube amp is sweet,bonny, but its output transformer is bulky,and requires complex manufactures.It also has some inherent drawbacks. Hysteresis characteristics of the transformer core will slow the low-frequency,lead phase shift,and limit the intensity and speed of low-frequency. The magnetic leakage, leakage and the distributed capacitance between the transformer coil will be influenced,and will lead to a poor high-frequency response and distortion. Purer3.8 adopts a new design concept:use electronic impedance converter circuit to replace the traditional output transformers,which not only can achieve the purpose of impedance matching, but also avoid the own shortcomings of transformer, making the music’s frequency response straight-wide,distortion and phase shift small,the playback of music to be perfect-fidelity.

Using unique designed tube amplifier circuit, output using the electronic impedance matching devices, flat frequency response, low distortion phase shift. Preamp tube using proverbial 12AU7, 12AU7 has wide frequency response, samll distortion and big power,voltage amplification using rich flavor 6SN7, current output using El34 which taste is close to 300B, the high-voltage power supply for tube using a constant current source of high-speed low-resistance power supply, adjusting tube using two parallel big current power tube, smaller resistance, high stability ,fast current supply, fully perform the excellent taste of the vacuum tube.

Impedance transformation adopt pure Class A,which can give perfect performances operating on tube amplify circuit,and achieving with both the tube soft, charming voice and strength of the transistor circuit and transient.It is a very wonderful combination,for sound field, location, music sense all have good performance.

Collected materials are used in this machine, input choose lossless relay control, the volume control using high-quality ALPS motor potentiometer, also using a variety of world-class components for tuning, including the United States DALE resistors, Campbell KIMBER KAP (or the United States Multicap) topgrade capacitance, CMC signal terminals, the German WIMA MKP10 (audio only) capacitance, Bada expensive five-star single-crystal copper单晶铜 RCA cable, Philips, SOLEN advanced acoustic Capacitor to adjust the sound. To reach the real world of Hi-end.

Purer3.8 also has a very unique feature that is the adjustment of A current.set A1 10W and A2 80W two position, chosen at random. A1 suitable for those who are environmentally friendly, A2 dedicated to meet Hi-Fi fans. And can be used as a separate high-quality preamplifier or a hybrid amplifier, a multi-purpose machine. There is a balanced input terminals, equipped with remote control functions, with all functions of modern high-level amplifier, in line with modern tastes, is a amplifier pursuit the full range of Hi-end.

Heavy-weight structure

The whole chassis of Purer3.8 except the bottom plate uses thick iron plate, the other all use aluminum alloy, scientific and reasonable case structure, firm, giving the feeling of hevry-weight.Firm and stable body has nice unti-shock function, and tapered foot of the machine will further reduce the vibration of the  machine, lay a foundation for the beautiful sound,which is an important part of design of a modern Hi-end amplifier The structure of inside machine is a bold innovation, with a strong power supply system, two big power transformer supply left and right channel separately, pre-amp is charged by R-type transformer. Each part has independent power supply, reduce the crosstalk between each part. Purer3.8 see from the outside is a integrated power amplifier, but before and after the class is separated from the internal design, but from inside it’s preamp and amp separate designed,not only can be used as a integrated amplifier,but also as a separate high-quality tube preamp and bybrid amplifier,a multi-purpose machines, to increase the fun when playing hifi.The power tube of amplifier distribute in the symmetrical  radiator, the inside layout of machine is very reasonable and beautiful, separately design for the circuit part and transformer, and thick iron plate for isolation. The circuit distributes in the latter part, three power transformers are based in the fore part, non-interfering. And different in approach but equally satisfactory in result with power segregate design ,more accurate sound field positioning.

The distribution of the each circuits are to follow the priciple of shortest single run, minimum interference,which is bada’s tips whick accumulated over eight years, also the guidelines of all the Hi-end amplifier design.

Specifications:

Output power:A 10W+10W(8ohms)

               A  80W+80W(8ohms)

               AB  150W+150W(8ohms)

Distortion:≤0.5%(1kHZ,30W)

FR:10Hz~35kHz(-1dB)

S/N Ratio:≥90dB(A standard)

thousands of peoples are satisfied, listen their favorable music with our audio hi-fi equipments