Horn subwoofer vs ported
I am thinking of building a "small" (8") subwoofer mainly for music. The horn designs are somehow appealing (mainly thanks to their efficiency), but I am wondering, how does it compare to a normal...
View ArticleMobile recording using linein
How can I record audio using mobile phone through Headset Nokia WH-205 Can I replace MIC in headset and give line out to it? please help me
View ArticleDIY tube alike sound, the magic coating....the hoax!
Criminal lack of decense.... people should be sent to jail http://www.altmann.haan.de/tubeolator/ A disrespect against our inteligence .... this is a shame to our comunitty:...
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ICEpower 125ASX2, ICE500A, Tripath TA2020 boards
I'm selling a little used Icepower modul, the 125ASX2. Announced are 2 x 125 watts on 4 ohms. It comes with an SMPS - it's basically PnP, as everything's on the board. It comes with the cables (input...
View Articlelooking for bass treble pcb pattern
Hi friends I like to make a pre amp with bass treble control, I want PCB pattern for bass treble circuit, please help to find or any link for this.
View ArticleT splices in the PSU: that bad?
Hi all, I was reading Slone's book on amp construction and I read I passage I cannot understand. I quote it here (with some cuts and modifications) hoping you can confirm what he writes and explain me...
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I make a TDA1514A AMP, Is there any brother do that?
How is TDA1514 IC's audio? I hear from firends that's a good IC, so I start to make, Now I am await for the TDA1514A IC, I buy from webshop. attach the picture here. Attached Images...
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Newbe - problem with Series Reg Tip 3055 + Z-Diode***HELP**
Hi Guys! OK I'm not a real newbe but lets say I'm not skilled to built regulators with transitors...:bomb: I' building a a regulator for my boss's :( oldtimer. Its an old Chevy which did use 6V battery...
View ArticleTwo questions about WM8804
Hello I've read the data-sheet and I have tho questions: 1. I can use a external high quality 36.864MHz oscillator as master clock for WM8804 in hardware mode? 2. To allow low jitter recovery of S/PDIF...
View ArticleModifying Emitter Follower type I
Hi, A am currently modifying an old amp and the driver/output is a type I emitterfollower. As type II has better performance, I want to upgrade. The two driver resistors are 220R. I want to lift them...
View ArticleEnclosure suggestion for super 8 rs/dd please...
Hello everyone, I want to build a pair of speakers for music listening with the wharfadale super 8 RS/DD. They are in very good condition. Can someone suggest what enclosure best suited for this...
View ArticleEdcor Wrong Transformer...
I recently bought the XPWR233-100 from Edcor, and asked to change the mains voltage design from default 100V to 120V. They agreed to do this free of charge. So I receive the transformer and begin to...
View ArticleSoundigital 16kd
This unit had 4 bad audio output MOSFET, They were all replaced together with the IR2113 driver IC, But know the amp have a noise like if it was missing a ground, There is audio, but it sound like when...
View ArticleDarlington VAS
In Cordell's book in the chapter about evolving a simple amp, he introduces the use of a darlington VAS. In his example, and pretty much every example of this circuit I've looked at, the collector of...
View Articlehand making inductors
Is it common for DIYers to hand wind there own inductors, such as the one on the output of a lot of amps? If so, is there a guide somewhere for "how many turns at what diameter for what gauge of wire...
View ArticleInfocus IN116 no power
I assume it's a power supply issue? Is this power supply board close to another Infocus model that they have the same issue?
View ArticleAlpine Mrp-M1000
Anyone have a srvice manual for this amp? If not does anyone have a part number for ZD4901 it connects to Q4901 (D600K)
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ICL8038 Waveform Generator - Any Interest?
I was doing a little organizing today - an effort closer to archeology than audio - and came across a jig containing an ICL8038 Waveform Generator IC (see atch). I didn't build it - I think I got it in...
View ArticleNeed HELP converting Bogen MX30a pa into a preamp for recording
I have a bogen mx30a in working order that I would like to use as a mic preamp for recording audio into my Akai DPS24 multitrack recorder. I would eventually like separate outputs for each of the 4 mic...
View ArticleReshaping an IB speaker
Hi. I have some Celestion Ditton 100 speakers in need of new cabinets. I like the sound of these speakers but would prefer a narrower baffle for domestic harmony. These are infinite baffle speakers,...
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