Search found 168 matches

by bostod
Sun Aug 15, 2021 10:27 pm
Forum: Beginners
Topic: How can I tell if valves need replacing
Replies: 8
Views: 1861

Re: How can I tell if valves need replacing

Well after some hum getting louder over previous months, I replaced all the kt88 tubes. I did this because I read that old tubes can let transformer noise through. After inserting the new tubes, the amp is silent again. It was only after buying the new tubes that I noticed the silver tops on the old...
by bostod
Wed Jan 13, 2021 4:54 pm
Forum: Buying and Selling
Topic: Buffalo 3SE DAC
Replies: 5
Views: 2071

Re: Buffalo 3SE DAC

That is a beautiful dac. The description points to network only. Isn't there a coax, optical or USB input.
by bostod
Wed Jan 13, 2021 10:28 am
Forum: Beginners
Topic: How can I tell if valves need replacing
Replies: 8
Views: 1861

Re: How can I tell if valves need replacing

Thank you very much for the replies my amp id a WAD kit88 running in pentode mode I believe. The testing skill is way above what I am capable of but the visual clues are very helpful. The tubes look okay and after reinserted them the problem seems to be resolved. Other than upgrading the tubes, any ...
by bostod
Sun Jan 10, 2021 1:43 pm
Forum: Beginners
Topic: How can I tell if valves need replacing
Replies: 8
Views: 1861

How can I tell if valves need replacing

Hi guys. I need a little help please. I have a set of 4 Electro Harmonix KT88 valves. I noticed today a slight drop out on a song and slight bluring. Sounds almost like a small jump on vinyl. Could be my bluetooth receiver but the tubes are also getting on. Probably had 300hrs tops through them but ...
by bostod
Sat Oct 03, 2020 10:44 am
Forum: Buying and Selling
Topic: Wanted valve integrated amp around £500
Replies: 0
Views: 1811

Wanted valve integrated amp around £500

my Brother has heard my WAD KT88 and has fallen for the sound. He has a budget of around £500 and is looking to get a good second hand unit. Looking at the World audio designs stuff as it seems good value for money second had. Not limited to the KT88 and would consider others. The WAD 6550 also look...
by bostod
Thu Sep 10, 2020 6:57 pm
Forum: Speakers
Topic: Help with Bowers and Wilkins CDM7 speakers
Replies: 11
Views: 4069

Re: Help with Bowers and Wilkins CDM7 speakers

Thank you all. I was able to find some B&W drivers from ebay that were the same dimensions that are from the dm 601 series. Replaced the originals with 2 kevlar units. Sound is good enough to my ears. I cant tell a difference from the other original speaker. When testing the damaged drivers, the...
by bostod
Mon Aug 17, 2020 8:17 pm
Forum: Speakers
Topic: Help with Bowers and Wilkins CDM7 speakers
Replies: 11
Views: 4069

Re: Help with Bowers and Wilkins CDM7 speakers

Tested both the top keeler driver and the bass driver. Nothing on a multimeter. Getting the amps tested tomorrow. Does anyone know if Bowers and Wilkins had individual numbers for each driver. I cant seem to find the exact match but some look close with the first 2letters and digits matching but las...
by bostod
Fri Aug 14, 2020 3:36 pm
Forum: Buying and Selling
Topic: Wanted. Valve pre amplifier
Replies: 6
Views: 2044

Re: Wanted. Valve pre amplifier

Got a Dook audio(nobsound) 12AX7 Valve Tube Preamp secondhand for £110. Allready bought some Sovtek 12AX7 valves to replace the stock ones. Cheap place to start and can sellon for little loss if no good
by bostod
Thu Aug 13, 2020 7:39 pm
Forum: Speakers
Topic: Help with Bowers and Wilkins CDM7 speakers
Replies: 11
Views: 4069

Re: Help with Bowers and Wilkins CDM7 speakers

So the problem is just with one speaker. His set up is an Audiolab 8000a feeding an Audiolab 8000p power amplifier. He was watching TV connected to beresford Dac. He said he was listening at low volume and heard a loud popping sound. I went down and listened to the damaged speaker, only the tweeter ...
by bostod
Tue Aug 11, 2020 10:31 pm
Forum: Speakers
Topic: Help with Bowers and Wilkins CDM7 speakers
Replies: 11
Views: 4069

Help with Bowers and Wilkins CDM7 speakers

hello guys. My friend has a problem with one of his Bowers & wilkins CDM 7se speakers. He heard a loud pop and the 2 main drivers stopped working. Only the tweeter works now. I tried to bypass the crossover by placing the speaker wire directly onto the woofer. No sound from it. the other matchin...
by bostod
Sun Aug 09, 2020 5:56 pm
Forum: Buying and Selling
Topic: Wanted. Valve pre amplifier
Replies: 6
Views: 2044

Re: Wanted. Valve pre amplifier

My source is digital. Mostly cd quality. But some 320kbs from phone or digital backup.I also listen to vinyl on my second system
My area is Doncaster DN3
by bostod
Sun Aug 09, 2020 11:40 am
Forum: Buying and Selling
Topic: Wanted. Valve pre amplifier
Replies: 6
Views: 2044

Wanted. Valve pre amplifier

hello guys. I've currently got a pair of audiolab 8000m's in my second system. The current amplifier is a NVA passive preamp. My speakers are frugal horns with the new Mark Audio Alpair 7ms. And Rogers LS6A/2. I like the sound but it can get a little fatiguing, especially with female vocals, cymbals...
by bostod
Sun Aug 09, 2020 11:29 am
Forum: Buying and Selling
Topic: Wtd mark audio alpair 7
Replies: 1
Views: 1185

Re: Wtd mark audio alpair 7

Bought the new alpair 7 now.
by bostod
Fri Jul 10, 2020 7:09 pm
Forum: Beginners
Topic: Basics of valve amplifiers
Replies: 17
Views: 5718

Re: Basics of valve amplifiers

I just bought a bunch of these for another project - https://www.ebay.co.uk/itm/EF94-6AU6-SIEMENS-NOS-BOXED-VALVE-TUBE/273734119250?epid=21029785970&hash=item3fbbd32f52:g:5SUAAOSwu79demSf They should be as good as anything , based on the quality of their other valves. Great call. These sound fa...
by bostod
Fri Jul 10, 2020 3:12 pm
Forum: Buying and Selling
Topic: Wtd mark audio alpair 7
Replies: 1
Views: 1185

Wtd mark audio alpair 7

just got some frugal horns second hand. Unfortunately the drivers were completely broken during transit. Looks like the magnet was just too heavy for the plastic enclosures, with snapped detaching the magnets. Does anyone have a second hand pair for sale failing that is there an alternative I can lo...