Behringer power amps
Hello all, I am new to this forum so please don't be too brutal. I am getting back into running sound with a band and they are looking at wanting a minimum of 6,000 watts for outdoor shows. We are...
View Articlecambrigde a500 amp and acoustic 3311 speareks
hi everyone, last month i got a pair of "Acoustic 3311 studio monitors speakers" (8 ohms, 125w ) , as do not have an amp i could not chech them. only today i bought a Cambridge audio a500 amp, when i...
View ArticleBreakin question
I'm working with a pair of Alpair 10.2s. Mark's breakin recommendations call for 100 hours of low level music followed by gradually increasing the level until it reaches normal listening levels. I'm...
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FS: Schurter (CGC0.6101.151) IEC Power Entry Module
This part is rated at 4A and has integrated power switch, filtering, and fuse holder. PM me with an offer. I have 5 available. I looked at mouser and digikey, they have them at a ridiculous prices; it...
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ports help
hi all Any one no where i can find these ports especially the one on the right? Attached Images ports.jpg (225.5 KB)
View ArticleCNC'd Conical Speaker
Hello diyAudio! I'm a student studying industrial design and i'm working on a final project for a CNC milling class. I am trying to create a set of small wooden conical speakers. The idea is that they...
View ArticleWtb - Pair of Electro Harmonix 6h30
I am looking for one pair of EH 6h30 gold pins. Let me know if you have an unused set. :) Thanks.
View ArticleNaming your own link?
I used to be able to do this, but I forgot. If you want to put in a link, the software names it for you. For instance, here's a link to a forum about foam: Polyfoam/reticulated foam Now if I wanted the...
View ArticlePurpose of power supply filter caps on amps?
Assuming for have a perfect power supply powering your amplifier why are multiple caps this large seen in schematics such as this? If this was to tame high frequency transients, wouldn't the caps be on...
View ArticleUse Delay to cancel room mode @ 25hz???
I have multiple Subwoofers and I was wondering if I could use a delay to cancel a room mode @ 25hz? I am still trying to understand about phase, polarity etc, but I am still coming to grips with all...
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Please help, really stuck on phase :(
Hi Folks, I tried finding the answer to this question but couldn't and asked within another thread but didn't get an answer. I'm really stuck on this basic question "can software (I'm using PCD7.0)...
View ArticleSale: JBL 16" K145, JBL 8" 2118, JBL 2404 HF, Fane ST-5022 (Edgarhorn),...
Only* PM me regarding questions, photos, etc. (1) JBL K145 (descendent of the legendary 150-4H) (2) JBL 2118 (nice midrange/midbass) (2) JBL 2404h (pleasingly delicately nuanced HF's) (2) Fane ST-5022...
View ArticleWIN ISD Pro and multiway design
HI all As a newcomer to speaker design, I have downloaded WIN ISD Pro. It is a powerful tool and has helped me understand the physics of how speakers and drivers work. But I have one question which I...
View Articlenewbee need help
Dear all, Can any one help me to understand better how to adjust dc offset and bias on B&K ST-140? I want to learn here.... tks
View ArticleTannoy 2064 8" and back horns
I have a pair of the above drivers and would like to make a pair of horns in the style of Cain & Cain for a large room. I have the woodwork skills to follow through with this plan but need help...
View ArticleDipole front wall reflection EQ
Not everybody can afford placing dipole speakers far enough from the front wall. Mine need to stay 60-70 cm close. An speaker with free-field linear frequency response will now show an obvious, rather...
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2SA1215 2SC2921, identify genuine and fake
Q: How to identify genuine and fake? A: Currently 2SA1215/2SC2921, fake (Chinese copy) transistor from the appearance has been very difficult to distinguish. but there are three ways to try, this is...
View ArticleHow to add an additional pre-amp stage to 5A3 design
Okay, so I have built a 5A3 amp from and old 1953 Bell Sound Labs 2122-B integrated amp. Original configuration has two 6SC7's, one 6SL7, two 6V6's and a 5Y3GT rectifier. I couldn't really figure out...
View ArticleTrimming DC Offset on Nico's preamp
I have assembled this preamp(link below) with the intention of capacitor-less coupling. One of the channels is having -6mV and the other shows -16mVdc approx. The complementary matching of these...
View ArticleMounting an RD50
My impulse purchase BG RD50s arrived today. I was surprised by how much they weigh, and by how they are not as tall as I was expecting. Anyway, I'm trying to work out the best way of mounting them....
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