Search found 201 matches

by jeffreybehr
Sun Mar 10, 2024 5:54 pm
Forum: Amplifiers
Topic: ET250S or MF2550?
Replies: 3
Views: 374

Re: ET250S or MF2550?

My ET250S worked well with any preamp--or no preamp at all, being driven by my Oppo 205--even driving 96dB-sensitive mag-planar hybrids.. It sounded superb driving my improved Audio Physic Avantis. I'm now considering buying another--two, actually--to drive my Vandersteen Seven Mk.IIs and later my ...
by jeffreybehr
Sun Mar 10, 2024 5:21 pm
Forum: Amplifiers
Topic: M8080 Replacement LP260MSE Monoblocks
Replies: 17
Views: 307

Re: M8080 Replacement LP260MSE Monoblocks

I had an MET1 years ago and researched--that means buying MANY and testing-as-best-I-could--MANY 6C4s..The biggest difference I found was in microfonics--very few had none or virtually none--and some hurt my ears as the preamp clicked on--I was sitting close to the speaker.. I suggest U buy a bunch ...
by jeffreybehr
Fri Apr 17, 2020 7:57 pm
Forum: General Discussion - CJ related topics
Topic: Premier Five
Replies: 4
Views: 816

Re: Premier Five

CJ also has a Teflon-capacitor upgrade for the Premier 5; you might ask what that costs...but I'm sure it will be a bit breathtaking, as will the cost of 16 high-quality EL-34 output tubes.

Do let us know what you do.

service@conradjohnson.com
by jeffreybehr
Thu Dec 19, 2019 6:08 pm
Forum: Amplifiers
Topic: Wow! Art 300 M/B are the Power amplifier of the year!
Replies: 7
Views: 875

Re: Wow! Art 300 M/B are the Power amplifier of the year!

roberto wrote: Wed Dec 18, 2019 6:12 pm HIFI+ Awards (3).pdf

Happy listening!
TY.
by jeffreybehr
Wed Dec 18, 2019 3:37 pm
Forum: Amplifiers
Topic: Wow! Art 300 M/B are the Power amplifier of the year!
Replies: 7
Views: 875

Re: Wow! Art 300 M/B are the Power amplifier of the year!

...uhh...according to whom? Got a link?
by jeffreybehr
Tue Oct 29, 2019 2:50 pm
Forum: Preamps
Topic: PV-12 vs PV-5 vs PV-8
Replies: 17
Views: 3193

Re: PV-12 vs PV-5 vs PV-8

Hi I am the happy owner of a PV-12 I am looking to get my hands on another preamp, and in searching for a PV-12, I also see the PV-5 and PV-8. Can someone either tell me what the diff is, or point me to a resource that will tell me? Thanks in advance. Probably you know of this, but just in case you...
by jeffreybehr
Mon Sep 23, 2019 7:45 pm
Forum: Amplifiers
Topic: Sold
Replies: 12
Views: 1087

Re: Premier 140 as monoblocks

First, as I understand it (and I certainly could be wrong), the two channels of a tubed poweramp CANNOT be 'bridged'.. Grossly oversimplified, 'bridging' is a way to convert two channels of a solidstate amp into a potentially LOTS-higher-power amp by, essentially, running the two channels in paralle...
by jeffreybehr
Sun Jul 14, 2019 2:02 pm
Forum: Classifieds and Wanted
Topic: WANTED: CJ MET1 multichannel preamp
Replies: 1
Views: 476

Re: WANTED: CJ MET1 multichannel preamp

Not to gloat...but I had TWO while the first was back at c-j being repaired. Sold the extra quickly and the oroginal maybe two years ago.. It's an excellent-sounding MC preamp.

GOOD LUCK!

Here's mine. https://www.conradjohnsonowners.com/vie ... effreybehr
by jeffreybehr
Mon Jun 10, 2019 5:54 pm
Forum: Amplifiers
Topic: NEW Conrad Johnson ART27A Triode Tube Amp
Replies: 102
Views: 13523

Re: NEW Conrad Johnson ART27A Triode Tube Amp

FWIW, these '88s in triode are run in push-pull and NOT parallel (ie single-ended), per 'Catherine' @ c-j.
by jeffreybehr
Fri Nov 30, 2018 8:24 pm
Forum: General Discussion - CJ related topics
Topic: A question about tubes/valves
Replies: 9
Views: 1673

Re: A question about tubes/valves

I also feel that different tube types are more rugged than others. The Mullard M8080/CV4058 was actually a military tube. This is electrically equivalent to the common 6C4. My PV14L arrived with a pair of Philips/ECG 6C4s, and I purchased some Tung Sol 6C4s shortly afterwards. Both of them experien...
by jeffreybehr
Tue May 01, 2018 5:10 pm
Forum: General Discussion - CJ related topics
Topic: Breaking in the Teflon Caps upgrade.
Replies: 65
Views: 13448

Re: Breaking in the Teflon Caps upgrade.

500 hours! Dang, that's a long time. I'll think I'll park it in my office with something running into it and let her rip for a month or so. Assuming I have the patience. ... Tonye, just leave it turned on and playing music, driving the turned-off poweramps(s). That doesn't require any patience--the...
by jeffreybehr
Mon Apr 30, 2018 5:24 pm
Forum: General Discussion - CJ related topics
Topic: Breaking in the Teflon Caps upgrade.
Replies: 65
Views: 13448

Re: Breaking in the Teflon Caps upgrade.

FIVE-hundred, not two-hundred, hours. As Admin writes, just play music into it. This process does NOT need the poweramp(s) to be turned on, as a preamp's load in the poweramp is passive--that is, just a resistor and sometimes a DC-blocking, high-pass capacitor. I hear more transparency overall with...
by jeffreybehr
Mon Apr 16, 2018 8:13 pm
Forum: Classifieds and Wanted
Topic: Premier 350SA for sale
Replies: 4
Views: 1602

Re: Premier 350SA for sale

...and USAudioMart, which is free.

http://www.usaudiomart.com/
by jeffreybehr
Sat Feb 03, 2018 7:17 pm
Forum: Classifieds and Wanted
Topic: For Sale--c-j ET250S 250Wpc stereo hybrid poweramp
Replies: 4
Views: 1383

Re: For Sale--c-j ET250S--price decrease

Price now down to $2500 cash to me, so the price via PayPal will be $2575...plus actual-cost shipping. Someone PLEASE scoop up this bargain!!!!!!!
by jeffreybehr
Thu Nov 30, 2017 5:31 pm
Forum: Classifieds and Wanted
Topic: For Sale--c-j ET250S 250Wpc stereo hybrid poweramp
Replies: 4
Views: 1383

Re: For Sale--c-j ET250S 250Wpc stereo hybrid poweramp

Come on, guys--here's your chance to own one of c-j's BEST-sounding amps at HALF price!
by jeffreybehr
Mon Nov 27, 2017 2:38 am
Forum: Classifieds and Wanted
Topic: For Sale--c-j ET250S 250Wpc stereo hybrid poweramp
Replies: 4
Views: 1383

For Sale--c-j ET250S 250Wpc stereo hybrid poweramp

For sale...sniff, sniff...my beautiful c-j poweramp in EXCELLENT condition. This amp is of the Premier quality level, with c-j's famous Teflon-film coupling, powersupply-bypass, and other caps, and it's designed correctly to sound excellent and have low distortion with NO NEGATIVE FEEDBACK. I bough...