AudiogoN Forums: Thoughts on Audio Research D70

Thoughts on Audio Research D70

I recently saw a very well priced D70. If I remember back in 80's these were highly thought of. Having no chance to hear, what do they compare with today or do they?

Daveyf (System | Reviews | Threads | Answers | This Thread)

09-20-05

Responses (1-50 of 79)

Click title to read one, or click date to read all below it.

09-20-05 Daveyf i had one from about 1984-1988. it had very good s ... Pscialli

09-20-05 I had a d70 mk11 for about five years in the mid-80s. excell ... Etbaby

10-16-05 I owned a used one for a year or so in the mid 90's. ultima ... Bezimienny

12-17-09 I have had a d70 mk2 with an sp9 mk1 since 1988 with no prob ... Dhgee

03-04-12 Anyone want to part with their d70? no tubes ok (even bette ... Johnsonwu

03-04-12 I work on them and retube them. use arc tubes only. excellen ... Hifigeek1

03-06-12 As hifigeek notes, the circuit is almost identical to the d- ... Tubegroover

03-07-12 I pulled the trigger on an arc d70mk2 about a year ago..here ... Daveyf

03-07-12 No doubt it's a good amp. the d115mkll has a bit more drive, ... Hifigeek1

03-07-12 Indeed the d-115 mk 2, which i owned for several years and i ... Tubegroover

03-08-12 Thanks for the opinions. now to find an old beat up unit fo ... Johnsonwu

03-20-12 Found a d115 mkii. can't wait to hear how it sounds. will d ... Johnsonwu

03-22-12 Johnsonwu, i will be very interested in your outcome after y ... Daveyf

03-23-12 Just the throw my 2 cents in, i'm not a big fan of hexfreds. ... Hifigeek1

03-24-12 @daveyf: totally understand the risks. i think the circuit ... Johnsonwu

03-25-12 Hi johnsonwu, i may be misunderstanding your intent. if you ... Daveyf

03-25-12 The classic series had triode configured output tubes. this ... Hifigeek1

03-26-12 @hifigeek1: yes indeed triode vs non-ultra-linear fixed bia ... Johnsonwu

03-26-12 Oh well. so much for the exciting anticipation for the amp. ... Johnsonwu

03-27-12 The cl-150 was a totally different animal and frankly pretty ... Hifigeek1

03-27-12 Just to chip in for a minute, i have a pair of cl120's since ... Smoffatt

03-27-12 So the verdict for my unit is: faceplate is dinged up and de ... Johnsonwu

03-28-12 Johnsonwu, sorry to hear of your travails. i would say that ... Daveyf

03-28-12 All tubes are known good tubes from my collection. all volt ... Johnsonwu

03-29-12 'foggy', certainly isn't a term that comes to mind when i li ... Daveyf

03-29-12 No flaming. my attitude about spending gobs of money on nos ... Hifigeek1

03-29-12 @daveyf: no other offender. i am comparing it with my 6 oth ... Johnsonwu

03-29-12 @hifigeek1 you are talking about the 270k drop resistor r75 ... Johnsonwu

03-29-12 Hmm i think i found it, goes from ground to pin4 of tl071, b ... Johnsonwu

03-29-12: Hifigeek1
That's the one. Also make sure you measure 10 ohms at ground to common tap at output transformer.
Hifigeek1 (Threads | Answers | This Thread)

04-01-12 All measured ok. thanks hifigeek1 for the pointers. took m ... Johnsonwu

04-01-12 Here's an fyi. i own a d115mkii and called arc about puttin ... Sbrown

04-01-12 I wouldn't put 8 kt120s into it. consider how much more cu ... Johnsonwu

04-01-12 Sbrown, thanks for sharing that info on the kt120's. i was w ... Daveyf

04-01-12 Sbrown, i just replaced the 6550 in the power supply of my ... Bifwynne

04-01-12 @sbrown if you are just after the sound of the kt120 and not ... Johnsonwu

04-02-12 I was asking about the kt120 more from a increased tube life ... Sbrown

04-02-12 Sovtek and svetlana tubes are definitely good value for the ... Johnsonwu

04-03-12 Johnsonwu, are you saying you'd replace the 1.0uf + 0.15uf ... Sbrown

04-03-12 Kt-120's are not recommended by the factory for use in a d-1 ... Hifigeek1

04-04-12 @sbrown: check vhaudio v-cap's web page on sizing coupling c ... Johnsonwu

04-04-12 @hifigeek1: those huge lytics are sprague and mallory and h ... Johnsonwu

04-04-12 Thanks for the tip the v-cap's website. do you think that t ... Sbrown

04-04-12 My experience with stock vintage audio research gear is that ... Johnsonwu

04-04-12 Johnsonwu, thanks for your input. i think the current arc ... Sbrown

04-04-12 Johnsonwu, you say that every time you have used vintage arc ... Daveyf

04-04-12 @daveyf: i meant even after replacing the rel+wonders with ... Johnsonwu

04-04-12 Johnsonwu, i am following this thread with interest. i have ... Smoffatt

04-04-12 @smoffat: the reason why i sold my cl120 (and cl150 of cour ... Johnsonwu

04-05-12 Johnsonwu, i just don't agree with your assessment of the so ... Daveyf

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