Welcome to our stores online: 502683. We provide you with Musical Instruments, Electronic products and Network equipments.
We are professional online sales company. Our slogan is: Quality first, Good service , Intergrity.
We mainly wholesale the following categories of products:
1.Various brands of Chinese stringed instrument, mainly Electric Guitar, Electric Violin,Folk guitar, and Various related parts and accessories, and The guitar effect instrument, etc.
2.Wholesale professonal stage Karaoke instrument, Mixing console, Equilizer, kinds of High-power borne power amplifier,MIC,etc.
3.Wholesale kinds of Consumer Electronics , DC and Professional Tripod, Car mini amplifier, Computer power amplifier,etc.
4.Wholesale various of network products, tablet PC, Cellphone and related accessories,etc.
5.Wholesale Network communication or wiring equipment tools, all kinds of Optical fiber cold joint and Quick connector, Adaptor, Optical fiber Pigtail, Jumper and so on.
6.Wholesale LED energy saving lamp and Solar Light, etc.
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The same products, we are more affordable.
The same price, we are more professional.
The same service, we are more meticulous perfect.
The same details, we are the most perfect.
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Cheap Wholesale New P1 Headphone Amplifier Tube Preamp bile Amp support 12AU7 FOR Russia
Brand: LITTLE BEAR
Color classification: white, yellow, purple
The default headset is equipped with 12AU7 tube $49.8
6N11-J tube .$55.8
Tube with 6922 $60.8
About 12AU7 / 6N11 / 6922 / GE5814 tube sound, according to a small audition comparison:
1,12AU7, partial sound soft, not sharp warm, feeling no glitches, very smooth, suitable for listening to a symphony, playing class. Partial midrange / bass, the performance is good.
2,6N11, but not sharp sound harsh, clear strong sense of hierarchy, sound more full of vitality, suitable for listening to voices, because it can separate the true difference between the various sound falsetto before, another full sound, so for solo / outs, vocal music class is better for treble outstanding performance,
3, Russia 6922 new tube, this tube is characterized by: low to high school music at all levels have good performance, quite satisfactory, tepid that is popular for all ages for a variety of pipe music. whether it is a movie, or playing, vocals, awesome music when watching a large listen meditation when Bandari, are in place. Shaoyou meters can be directly on 6922.
4, the United States imports GE5814 tube, a tube new inventory is 80 years of age, collectible, sound aspects, and 6N11 substantially the same, the performance is very good for alt. Superior 12AU7, but there was no 12AU7 pure bass, additional . after careful comparison, the background noise is slightly large than the 6N11, after all, not low-noise tube. (6N11-J belong to low-noise tube), just little freshman. contrasting realized that absolutely does not affect the music. pay attention to the difference does not come out . prices and 12AU7 same. relatively high cost.
These are just a personal opinion. Advantages and disadvantages are actually say, not Luanchui, real, allowing you to buy to understand, of course. Sound aspect, or because of the specific and headset varies.
Using this method must be carefully read: !!!!
The machine defaults RCA inputs. If 3.5 pairs 3.5 cable, to the input switching (back green headphone port input switch position) 3.5
After the connected cable and headphones. To boot. Then probably around heat engine for 15 seconds. Headset which can speak! Also. Remember. Do not for a long time (more than five minutes) load this amplifier or easily damaged bile machine. ( the so-called no-load. is not connected to any headphone or RCA output terminals are not followed by stage. long open direct machine), tube amp like a transistor. If prolonged idling. amplification tubes and pipes are damaged.
So if you unplug the headset, turn the small amplifier. Otherwise, please make sure the headset plugged in a small amplifier. !!!
1, custom absolute gold plated RCA input nest, gold-plated headphone output interfaces seats, providing excellent contact to ensure smooth transmission.
2, better panel, 3MM thick fireproof material.
3, the power upgrade to 24V / 1.5A (solid mark). Absolutely enough, the original general 24V1A, in addition, to increase the output protection function, so that when turned on, the relay sometimes large current impact sound now resolve, while increasing the relay, allowing you to advance directly into the headset. without the need to require heat engine before inserting. (if not previously on the heat engine into the headset when a power supply is turned on. the current impact will be very sound, It will damage the headset.)
4, the regulator replace all imported ST regulator, non-domestic bargain.
In addition. This price includes all accessories Power, the host, tubes are homogeneous, (bring your own cable), hand-use.
Some common parameters:
Operating voltage: DC24V / 1.5A
Input sensitivity: 50mV
Output Impedance: 16 ~ 600Ohm
Frequency response: 20Hz-20KHz
Machine operating Rated power: 15W (The reason why heat loss, because this class amplifier .A little useful work about 10-20%, the other is converted to heat for a long time if you need to work, plus a recommendation. small fan)
Actual output power (also called RMS). After the real test, probably 450mw / per channel. (Figuratively, headphone output power only 20-30mw), so for general low-impedance headphones can cope click (generally 20-60 Euro, ear), but for you some big impedance or high-power headphones. most of the headphone speaker unit with large diameter, power is also large, mobile phone and then they can not do anything. so, with this small amplifier, Guarantee can push properly properly, let alone a hundred European standard headphones.
Packing list contains:
A 12AU7 tubes.
A power supply (24V1.5A)
A 6.35 to 3.5 adapter
Hand ready to use.
We accept various payment that the platform supports, after we confirm that your order have been paid, we are start to prepare the goods, then send out the goods within the prescribed time, we will tell you the tracking number of your goods in time.
We usually use China post air or EMS to send the goods to all over the world, Only free shipping to distance closer to China, China\'s postal regulations within the five districts of countries and regions. EMS is very fast shipping method, usually, after we send the goods within 7 to 12 workdays, you can receive the products you buy.
(Friendly reminder: If you provide the Wrong address, and the parcel was returned, The shipping cost should be paid by the buyer)
When you open the package, if you find that the products have been damaged, Contact us as soon as possible, and provide us the photos. After we confirm, We will give you a full refund as soon as possible,We bear the freight return.
If it is broken in use, or by wrong operate, or by some artificially damage, We don\'t accept refunds. My dear friends , please understand this.
The goods you ordered, have been tested by professional staff carefully before we package it.
We adopt professional high density of 4 cm thick shockproof bubble and 6 cm wide tape, package the products in a totally enclosed, Ensure that every customer can receive the intact products.
Due to the customs policy is different in different countries, If you have special requirements, Be sure to note that: Electronic invoice? Mark how many price value? Gifts?
If there is no notes, When the parcel Reach your country customs, please do the customs clearance formalities in time, and receive it. If because of the buyer, not do customs clearance in time , the goods can\'t be received, All responsibilities will be borne by the buyers!
My dear friends, when you receive the goods, make sure no quality Problem, please confirm receipt of the goods in time. Make a positive evaluation to our order, and to the quality of our products and services.
Thank you very much once again ! I wish you a happy shopping! Looking forward to our next pleasant cooperation!