Raphaelite DP34II stereo tube amplifier integrated amp pushi-pull EL34x4 3/5A speakers dedicated with protective cover.
100% Brand New
The price is for an audiophile audio amplifier， the speakers on the photo is not included!
Please note that before buying:
This custom model is upgraded from DP34, so the silk screen mark is 0-4-8Ω instead of 0-11-15Ω. If you need to determine if your purchase is 15Ω, please take a closer look. Marked on the output transformer. The specific output impedance is actually 11Ω at the 4Ω position of the silk screen, and 15Ω at the 8Ω position of the silk screen.
This product is a custom amplifier, the customization period is 7-10 days. After successful payment, the production is arranged and the cash on delivery is not accepted. Thanks for your understand and patient!
Declaration
All items guaranteed 100% BRAND NEW in the original edition Box.
ONE-YEAR WARRANTY !!!
Features:
EL34PP 3/5A 15 European version, is an EL34 push-pull combined amplifier designed for antique 3/5A speakers. It is designed to redesign the tube output transformer for the special impedance of this speaker of 11 ohms and 15 ohms. The sound color of the antique box is more suitable for her big shield engraving EL34 tube, the 3/5A speaker is required to match the power amplifier, the power is too large, the unit will be distorted and the sound is dull, too small and can not be well driven. There is also a feeling of the same feeling with this speaker. There is also a modern bookshelf speaker after the rain P3.
Users with a 3/5A 15 Euro version must know that her efficiency is extremely low, and such low sensitivity is mainly consumed by his complex and efficient crossover system. I have collected some different versions of this old-fashioned speaker. We found that the DP34 series has been reworked to replace the tube, and the output transformer is very suitable for matching this hard-to-serve speaker with great results. I hope that collectors who really love this speaker can feel the impedance with me, and the sound with the appropriate amplifier will start to sell this non-shaped product.
Remarks：
The 3/5A 15 Euro version is matched with the crystal machine. The first is the impedance matching problem. The advantages of the crystal machine are low power and good damping characteristics. The power is rated at 4 or 8 ohms, such as 15 ohm load. The effective power is greatly discounted, and the power margin is insufficient. The amplifier enters the nonlinear region at high frequency and low frequency in advance. The high power amplifier can overcome this shortcoming, but the higher the power, the worse the details are. Another consideration is the tone color, 3/5A 15 European version of the general high frequency is not very bright, it is best to have an analytical power, high transparency of the air amplifier, but many cheap crystal machines are very bright but not quality. The use of very expensive and bulky crystals before and after the stage is incompatible with this delicate speaker body. For the high frequency requirements, I think the tube is easier to do, and the high impedance is just the strength of the tube amplifier. (The smaller turns ratio is beneficial to the frequency response of the transformer.) However, the user can look for a crystal machine in the early stage of Mai Jingtu. SU is the first stage or the inductor used in the production of Mai Jingtu from the tube to the crystal machine. The output form is 4 Euro, 8 Euro and 16 Euro.
3/5A 15 European version
In combination with the tube machine, it is not recommended to use single-ended first. The single-ended sound is thick and heavy like this thick boy, which is too dim. (805SE is co-produced with her, but the volume is huge and the power consumption is high, the same is not fit.) BOOB single-ended push high frequency is indeed very attractive, but encountered a little dynamic violin concerto even if the small sound star did not appear worried distortion, Insufficient speed will also pull you down. Comprehensive test rate Small size, large dynamic, impedance matching push-pull is more suitable for 3/5A 15 European version, 6550 and KT88 because the lines are not fine, personally can't talk about it. In the end, four tube types were selected, EL84PP, EI34PP, 2A3PP, and 6L6PP. EL84/10W is slightly smaller, 2A3 is good, slightly expensive, and the 6L6 driver is suitable for sound.
It was dull, the midrange was thicker, and the EL34 was finally selected. The lines were clear, the high-frequency was beautiful, and the power was moderate. The E88CC made the front-stage tube sound field grand, high-frequency ethereal. (personal sense of use analysis, only for communication)
Specifications:
Article: E88CC-EL34 3/SA push-pull amplifier
Tubes: 5AR4/SU4Gxl E88CC/6DJ8x 1
12AT/ECC81/6201x2 EL34*4(Reissue Edition)
Input Sensitivity: 340mV
Power Output: 2x28W (RMS THD<1% lKHz 8Ω)
S/N Ratio: 90dB
Input Impedance: 100KΩ
Output Impedance: 11Ω. 15Ω
AC Input: AC 220V
Power Supply Voltage: AC 100V - 240V / 50Hz-60Hz (100V, 110V, 120V, 230V, 240V version will take 3-14 work days to order), 220V version is in stock.
Power Consumption: 150W
Frequency Response: 18Hz-40KHz -ldB
5Hz-45KHz-3dB
Insulation Intensity: 250MΩ(DC2000V,Imin)
Dimension: 340*2B0*190(W*D*H)
Net Weight: 13.6KG
