Recent content by Bassman12350

You are correct when you say that you may not get proper readings when you check the speakers with an ohm meter. Impedance (speakers) is different than resistance, so you will only get a very rough idea, if at all by using an ohm meter. Actually, if your cabinet is a 610 (six ten-inch...

Maybe your question was broad, but it was a good question. As a bassist and former audio technician with a specialty in guitar and bass amps, I can identify with the old adage, "you get what you pay for." More expensive gear will have better circuit boards and/or use point-to-point wiring for...

I recently bought a MarkBass Micro Mark C108 combo - - It puts out 50 watts into a special neo 8 inch driver, is about 10" square, and weighs 11 lbs. Cost is rather steep ($499 at GC), but IMHO there is nothing out there in its size that sounds as well. I replaced my SWR LA-8 with this - -...

From your question, I am imagining that you wish to essentially double the output - - much like bridging a stereo power amp, correct? If so, here's a couple of thoughts. First off, unless the user's manual specifically addresses "daisy-chaining or slaving" the two amp outputs together, don't...

Absolutely correct here, the CMD121P does have a piezo tweeter. As was mentioned, you may be overdriving the front end of the amp just enough to cause distortion of some of the highs - - which you'll hear through the tweeter. Also, piezos tend to quit working altogether when they blow, but...

Justin, some may laugh over this but I use an ART Tube MP Studio instead of the church's DI boxes. It ran me $29.00 when Musician's Friend had a sale on them a couple of years ago; I think they are $59 now. It uses a 12AX7 as the preamp and has a selector to dial in different EQs, or one can...

I think buying a used rig from GC is just about like buying one from anyone else - - private party included. You do not know what you're getting, unless you know who it was who sold the item to CG, or who was selling it privately. Most of the transactions I've conducted at CG have been good -...

I have recently become a fan of the MarkBass products. I tend to play primarily jazz and worship stuff, so was looking for a combo amp that didn't break both my back and my budget. I ended up with the MarkBass CMP 121, which has the "Little Mark" (or very similar variant) amp built into the...

IMHO, I must agree with those who advise against using a guitar amp for bass. As was mentioned, most guitar amps are designed to give that wonderful overdrive/overtone sound without a lot of volume, so they will definitely start to break up and distort probably a lot earlier than you'd like for...

I have and love a Mark Bass CMP 112 combo and have the New York 12 cabinet to add in if I play a larger gig. I replaced my SWR Super Redhead with this rig and have not been disappointed.

Gotta agree here also. The specs of another replacement speaker will no doubt be different. The most important point is the impedance (four or eight ohms) and efficiency - - how much of a sound level the speaker produces when compared with the original OEM one. Best to stick with OEM if at...

Absolutely! I remember these amps well and have the utmost respect for that power supply. Definitely lethal! Supply volts were 795 - 800 with just under that (perhaps 775 - 780) at full rated output. The best one I remember working on clipped at about 360 watts RMS into 8 ohms.

So, with all the comments, I looked up the actual data sheets for the 6550 and the KT88 (RCA, GE, and Tung Sol, I believe). Both are beam power tetrodes with very similar characteristics. Both are capable of delivering 100 watts output per pair in a class AB push-pull circuit. I stand...

On the contrary, I don't believe you are arguing at all. This is what discussion forums are about and hopefully, I am not a purveyor of misinformation myself. I am just basing my comments on my experience as an audio technician and the fact (as I remember it) that Ampeg for one, was pretty...

Not to disagree with anyone, but I used to be a repair tech working at a warranty station for Ampeg and several other companies. The KT88 and 6550 tubes are identical, though the 6550 is a industrial equivalent of the KT88 and was (at least back then) designed for "rougher" use. 6550s were...