We're promised a high‑quality speaker, and although the head and combo are built of MDF, the 1x12 cabinet is made, in time‑honoured and labour‑intensive fashion, from finger‑jointed Baltic ply. Hi David, I'd like to upgrade by VHT Special 6 speaker. But I'm really trying to figure out speaker I would like to max out headroom with a high db (well as much as you can on a 5 watt lol) I see the WGS et10 as a contender but I also like Alnico too. It works great with my overdrive and booster pedals, and with my Little Brute Drive distortion, fuhgettaboutit! If it fails for the same defect 3 times, it is replaced on the 4th breakdown. This brings an appropriate mid thrust. V2B is the output stage driver. A cheap, sub-$200 amp was not supposed to sound this big and this good. I brought it to gigs and was very happy with its tone right out of the box. 16 Ohm 10" speaker for VHT Special 6 for low volume, cleanish tone. Insulated Plastic 9 Volt Panel Mount Connector.
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We can confirm that these amps are actually "hand-wired" in China, and the quality of assembly is no worse than what we are seeing from the major guitar amp manufacturers. Guitar amps have design elements that compromise their harp tone. Reverb Power & Ground Connections. Kleuck explains the mod: Well, the goal was to nail the spirit of the "Tweed era" (1950's Fender) with an amp between the 5F1/5F2/5E3. Amounts shown in italicized text are for items listed in currency other than Canadian dollars and are approximate conversions to Canadian dollars based upon Bloomberg's conversion rates. Remove the tone potentiometer. With my VHT Special 6, which is a wonderful, hand-wired amp that's made in China, I did both of these things, replacing the stock tubes and speaker to give it a much deeper voice than its default. Vht special 6 speaker upgrade download. I did that because at the sides of the hole you'll hit the side panels. After test fitting the speaker I removed it and spray painted the cut wood with flat black paint. At the newly available space on the tube socket we solder a 47k that we connect with the middle pin of the volume potentiometer (red cable). Headphone connection No. Output Transformer: Blue is signal in from V3, Red is 326v AC input from B+1, Orange is 16 ohm speaker output, Brown 8 ohm, Yellow 4 ohm. The hum seems more prominent through the closed‑back cabinet than it is with the combo, and again, I wasn't very taken with the way it sounded in Low Power mode: there was an unpleasant rasping edge to the break‑up, which might be down to the particular valve that was installed.
It can really change the overall flavor of the amp so don't "set it and forget it. " 2 - 12" VHT ChromBack speakers. I am totally kidding. I've seen this described as moving from a 'blackface' to a 'tweed' Fender sound, and as long as you don't expect a perfect replica of a '50s Champ, there's some merit to that description.
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I should add something to the speaker set I mentioned above... David has a great interview with Gary Smith about speaker selection here: Gary makes an excellent point about magnet and voice coil size. Normal wear and tear. Lucky that the Special 6 amp makes it so easy to modify the circuits. V3 (Power tube) gets 6. Complete your VHT rig today! I should have called the popular "lift R19" Champion 600 mod "The Much Mod" 'cuz I'm pretty sure I originated it. The speaker sounds fine with the cab in the normal upright position with most of the sound coming from the cab vent. We soon realised why. VHT SPECIAL 6 (Upgraded with 6L6GC, JAN 5751 tubes and | Reverb. For the 8 inch I shortened a jigsaw blade so it was just long enough to cut through the bottom panel which is about 6/10 of an inch thick.
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Item Condition||NEW|. Switch toward small tubes = bias for small 6V6. It has two tone controls in series. This mod brings more power from the transformers, expect about 10W. 3 ohms so select 8 ohms. Thanks for checking out my post. Vht special 6 speaker upgrade tool. I went with the Hammond 157M rated at 8 Henry 100 milliamps 259 ohms 400 volts. Dual Speaker Output With Big Power Tube. I don't worry about the throw because I mike it. With the Ramrod in mine, I would prefer to mic it. That goes for guitarists as well as harp players. Low Power mode is perhaps a little disappointing by comparison, but still capable of yielding usable sounds.
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Richard Kuehnel, Circuit Analysis of a Legendary Tube Amplifier: The Fender Bassman 5F6-A, 3rd Edition. The tubes sound fine. R23 is physically located to the left of the return jack--at the end of the blue wire coming from tube V2 (middle tube) pin 7. I get a significant signal boost when the raw control is on, even when all three tone controls are maxed. I also agree that most harp players should have a good 5 watt tube amp. So here's what I've done to this amp: Special 6 Ultra Schematic. If you're like me and your cab has a 16 ohm speaker you can drop the impedance by plugging a second speaker into the Ultra's second speaker jack. Ground wire is connected to R39 ground side to toggle switch corner terminal. In 'Low Power' the power tube runs in the triode mode with its plate and screen grid tied together at B+1 voltage. Vht Special 6 tubes and speaker swap suggestions. A hand‑wired valve amp at this price? Since I was doing a review, I went to the Jensen site to look at the frequency response chart, and saw that it had a scooped frequency response; and very importantly, a nice, wide, and rounded bottom end, lower mid-range response, then spiking at just over 2kH for high-mid emphasis. Then we have about 80mA in OT and 25W power loss at the 6L6, that fits. I did not try the Lil Buddy though. You can double the output of this amp by adding an output tube bias resistor (described below), installing an EL34 or 6CA7 power tube and connecting an 8 ohm speaker with 16 ohm impedance selected (or 4 ohm speaker & 8 ohm selected).
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The coupling capacitor C14 is very small with 4, 7n, instead we take 100n / 400V. Power output is 5 watts @ the onset of clipping. This means that, for example, anyone who wants to change the voicing of the preamp stage can easily substitute different resistors into the tone stack. I put the original rubber feet on the side of the cab. Open-back cabinet design. Vht special 6 speaker upgrade system. I couldn't find a 10k or 50k audio mini-pot so I used a 100k audio mini-pot for the mid control. Having a chicken head button with 6.
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This change also bumps up the wattage a bit from 15 Watts to 20 Watts (with a 30 Watt option). Sound near identical depending on the billions of variables in play. The sum of R10 and R12 should add up to approximately 250k. Amplifiers have large capacitors that store enough electricity to kill (or at least scare the piss out of you).
Run a wire from the output transformer's 4 ohm (yellow wire attached to speaker impedance switch) output to a 100k ohm linear pot, then to an on/off toggle switch then to the blue wire connecting C22 and the output tube (V3, see pic below). The "Reverb In" and "Reverb Out" connection points are shown above in the "Tone Stack" section circuit board picture. People always seem to mention the Eminence Lil Buddy when talking about upgrading this amp. I decided to try a downward firing 8 inch Celestion Super 8, 15 watt 8 ohm guitar speaker.
Also the tone stack and original tone knob are affected differently by the amp's "boost" circuit (pulling the volume knob up). Running through the same cab, the overall volume a. few feet from the cab was spot on with where I run the HG50 at my.
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