Musical Fidelity A3CR Preamplifier Preamplifiers

Musical Fidelity A3CR Preamplifier Preamplifiers 

DESCRIPTION

Remote-control operated dual mono preamplifier with phono stage Choke regulated power supply Massive transformers Sophisticated double-sided PCB layout, and premium parts used throughout

USER REVIEWS

Showing 1-10 of 23  
[May 08, 2020]
JustMusic


Strength:

I bought this MF A3cr used and I couldn't be happier with it. Built like a tank it is a perfect, tube like, combination with my PrimaLuna Sixes + .7 Magnepans and two RELs Quake MKII SE. I use 999.99% silver interlinks. The MC/MM Phono part works perfectly with the Denon DL-103R, great sounding from high up tot deep down. Absolutely recommended!

Weakness:

Maybe the lack o balanced f XLR in- and outputs.

Price Paid:
€500.-
Purchased:
Used  
Model Year:
2008
OVERALL
RATING
5
[Nov 12, 2009]
nerol71
AudioPhile

My Musical Fidelity a3cr was purchased though Audioadvisor.com. My initial interest was sparked by Sam Tellig's review in Stereophile magazine (my favorite magazine by far). I was looking for a preamp to replace my $500 Adcom preamp. My Thiel 2.3's turned out to be merciless on the harsh solid state black box. The Adcom was a much better match for my Acoustic Research 308 HO's. Well, the a3cr sounded better than my $500 Adcom preamp, so I purchased it. Better soundstage, softer mids/highs, no change in bass definition. The remote is cheap plastic, but functional. The volume knob has become jiggly, not something that a $1500 preamp should have. Come on now, there is only one knob on the front, can't MF get it right? Removable/upgradeable power cord is nice for those who tweak. I can make no comment on the phono section.

Not being completely satisfied with the perceived brightness of my system, I went product hunting again. I had auditioned a top of the line Adcom 750 preamp, it was more accurate and uncolored than the MF a3cr, but the source selection knob broke within 10 days (!), so it went back to the dealer. Subsequently, a Bryston 4bsst (a big SS amp, and a Ah! Tjoeb 4000 (tubed cd player) found their way onto my rack. I discovered TUBES! Soon after I bought a Primaluna Prologue 3. Wow. The brightness was gone, replaced by sweet, 3 dimensional, and uncolored music. The Primaluna was $100 less expensive than the MF. The MF now has a nice home in my secondary sys.

The sys:
Ah! Tjoeb 4000 digital source
Primaluna prologue 3 preamp
Bryston 4bsst amp
Various cables from audioquest and MIT (don't spend too much on cables)
Thiel 2.3's
Velodyne DD10 subwoofer

Side bar:
Over the years of reading Stereophile, I realized Sam Telling and MF have a close relationship, so much so that I believe that Sam overrates all MF products. Heck, one month, Sam even reviewed on a MF wrist watch! Wasn't there any audio products he could have reviewed?

OVERALL
RATING
3
VALUE
RATING
3
[Aug 26, 2009]
Allan G
Audio Enthusiast

I see that it has been years since this now classic preamp has received a review. Like anyone else considering this pre, I purchased my from the used market and was pleased to get one in mint condition. I had first bought a A3.2cr and then purchased the original A3 and found that I preferred the A3. It brings out a warmer presentation, which is what I was looking for. Initially I paired it with the A3cr power amp, which gave me excellent results but I was able to acquire a pair of AES(Cary) Six Pac mono block tube amps for a very reasonable price. To my ears, this is a match made in heaven. Lush, wide sound stage, with warmth to spare. I principally listen to jazz and 70's rock, which suits this combo just fine. Operationally and sonically I have no complaints about this preamp. I do want to mention that I feel that the phono stage is under rated. I have used the ProJect Tube box 2, which I enjoyed and the Graham Slee Era Gold V, which I feel is grossly over rated and have found that the A3's internal phono stage has held up quite well in comparison. My only gripe is the remote control, which could have been much nicer, a minor complaint.

OVERALL
RATING
5
VALUE
RATING
5
[Aug 01, 2004]
Platinum Ear
AudioPhile

Strength:

Lush sweet mids and treble that puts almost all valve amps to shame.

Weakness:

Slightly muddled base when driving loads of < 10K Ohms.

This review is a follow up on a review I posted a few years ago. I rated this product with 5 stars at the time and my opinion hasn't changed much over time, except that I found a slight flaw when playing SACD. This preamp has been supposedly designed with SACD in mind so the design flaw is a little surprising. Anyone who's heard this preamp will testify that it's a fine preamp with a lush sweet treble and midrange. Well that's very true of CD but I discovered that with SACD the treble actually sounded a little dirty and smeared on many discs. I eventually pulled out the sig gen and scope and fed a 10KHz square wave in at 2V P-P. The problem appeared on the scope right there in front of me. There was a 1V overshoot on the positive edge of an otherwise reasonable waveform. Reducing the input amplitude significantly reduced the overshoot so that proved the problem into the first gain stage. The amp is now out of warranty so I lifted the lid and took it to the test bench. It didn't take too long to track down the problem. Essentially it's due to slew limiting caused by excessive shunt feedback which provides hf compensation. The capacitor can be identified as a ceramic 47pf (in both channels). I replaced this cap (both channels) with 22pf polystyrenes. The mod is qute simple if you snip but leave a little of the original component leads sticking up and then solder the replacement caps to those exposed leads. I tested the amp again and hey presto a perfect looking square wave even with the level raised beyond 2V P-P. While I was at it I also replaced a few other ceramic fb caps with the same value polystyrenes and there was one other mod which is well worth while. The output coupling caps are polarised 10uF electros which are notoriously bad for audio at LF and explain the slightly lumpy rounded base that I always noted as a signature. I was able to mount a 100uF NP electro almost directly above them with one end soldered to the output post and the other to one leg of a nearby raised resistor leg that's connected to the input side of the existing electro. OK, with the lid back on and the player back in the Hi-Fi how was it. Massive improvement? Answ = yes. The fat rounded base was almost all gone and was replaced by a tighter more defined and detailed base. Treble was even more pristine than even on CD but now it was unbelievable on SACD too. There are a few other mods that I'm going to do (a few more caps to replace here and there) but this is now one hellava preamp. I don't advise anybody do the above mentioned mods unless you can first test the player with a cro and sig gen as I did. My preamp was a fairly early factory release so the faults that I've discovered may have been partially or wholly corrected in later produced units. There's also a version 2 of this preamp which is also probably fine. Having said that, if you have noted any of the mentioned sonic traits of my previously unmodified preamp then it's very advisable to have it tested out.

Similar Products Used:

Krell KSP-7B

OVERALL
RATING
5
VALUE
RATING
5
[Nov 19, 2003]
tnaff
AudioPhile

Strength:

High resolution, transparent midrange, and solid bass, without a trace of harshness

Weakness:

No significant weaknesses in the line stage, given the price. The phono stage is only decent -- not reference quality.

Some other reviewers of the A3cr preamp only evaluated it with the A3cr power amp. This can be misleading, since the power amp's sound is strongly dependent on speaker sensitivity. I've demonstrated this dramatically in my own very large listening room, where the power amp struggled with 86dB-sensitivity speakers, sounding extremely strained. The same power amp, played through Avantgarde Duos (104.5 dB sensitivity) sounded like a $4000 amp. Taken on its own merits, the pre amp line stage is terrific. It combines resolution with clean highs, transparent midrange, and full, solid bass. Soundstaging is excellent, and there is no trace of hardness or harshness. If it has a sonic signature at all, it would favor the warm side in the mids, but only very marginally. (The A3cr power amp is, in my opinion, a little on the lean side, so there is some complementarity, although I think the combo is very slightly lean, even through sensitive speakers.) The preamp design applies amplification ahead of the volume pot, which reduces noise (since any noise associated with amplification is reduced by the volume control). This also means that the amplification stage must run at essentially full volume, which is undoubtably one reason for the massive power supply. The amp is very quiet, as attested by the Avantgarde Duos. Through the Duos, the combination of A3cr pre and power amps is not absolutely silent at very close range, but then, nothing is -- at least in my experience. Build quality on the preamp is excellent. The styling may or may not appeal, but the appearence and feel clearly send a message of sound, solid construction. The phono stage is decent and is switchable to cover low output or high output cartridges. I invested in a separate phono preamp (Camelot Lancelot Pro, $1000 MSRP) that does out-perform the A3cr phono section in terms of resolution. I ordered this product from Audio Advisor as an afterthought along with the A3cr power amp. I made sure that I had the right to return it, and actually expected to do so. It really caught me by surprise. The A3cr preamp is one of the great buys around right now: true, affordable high-end performance. Stereophile catches a lot of flak for rushing to review every Musical Fidelity product that comes along while other brands sit on the sidelines. This preamp makes you understand why Stereophile is willing to take the heat.

Similar Products Used:

Z-Systems rdp-1 digital preamp, Cary SLP-94 preamp, and Camelot Lancelot Pro phono stage

OVERALL
RATING
5
VALUE
RATING
5
[Oct 16, 2003]
John Hatton
Audio Enthusiast

Strength:

as above

Weakness:

as above

I bought this pre after I had the Musical Fidelity A3CD and the A3cr power, and although the audiophile would snob a complete brand match, this one actually works. The overall feeling is a sense of naturalness and effortless, music is not in the face but neither to layed back. The sound is extremely clean and there is no signal interference at all (and I mean at all). Soundstage is good, even in depth, and instruments are individually layed out. Detail is good and no sense of fatigue what's so ever over long listening periods. It works well with all kinds of music from acoustic to electronic, to rock++, except for very aggressive music where in my opinion for some there may by a lack of sparkle in the system, which could be due to the character of my cd player. The system it's used in Musical Fidelity A3CD Musical Fidelity A3cr pre Musical Fidelity A3cr power B&W CDM 7nt QED Qunex Siler Spiral interconnects QED Silver Anniversary Bi-Wire speaker cables

OVERALL
RATING
5
VALUE
RATING
5
[Sep 23, 2002]
andy hine
Audio Enthusiast

Strength:

all

Weakness:

none

I put the a3cr pre on my system and went out the next day and bought a3cr power. i now live in music heavan.

Similar Products Used:

there isn,t any

OVERALL
RATING
5
VALUE
RATING
5
[Jun 13, 2002]
Kn
Audio Enthusiast

Strength:

as above.

Weakness:

as above.

Love this pre-amp. Warm, detailed, musical, with a wide, deep, enveloping soundstage. Purchased with the A3CR power amp, the duo lacked bass for approximately the first 40 hours, so be patient. Midrange is crystal clear, highs are sweet, never harsh, and bass is deep, unmuffled. Compared to some other systems I have heard (at various dealers), this is still a bit lightweight (need for more power?), images not being quite as weighty as they could be, but this is an insanely minor complaint given the other strengths of this combo. Can't stop listening.

Similar Products Used:

Rotel integrated, Denon receiver, C-J, Antique Sound Labs, Cary gear

OVERALL
RATING
5
VALUE
RATING
5
[May 17, 2002]
Jlysaker
Audio Enthusiast

Strength:

Black background, 3Dimage, wide stage, detailed, rich bass, open high end, and so on.

Weakness:

Depending on associated components, **may** overly color the low end with electric instruments.

I''ve been at this six years now, feverishly the last two years. I''ve learned what I knew before, but only abstractly: the whole is greater than the sum of its parts, and thus each piece is as good as the network allows it to be. Here is my whole: Bryston 4Bst MF Pre Magnapan IIIA Arcam Alpha 9 Yamaha CT-7000 Tuner BEL Interconnects Tara Labs RSC Master 5000 Speaker wireRichard Gray Line Cond. PS Audio Power cords In this set up, the MF is awesome, truly. It is a world warmer than the Bryston BP-20 but remains open at the high end unlike the Sonic Frontier SFL hybrid pre, and can simply carry a blast of music if it needs to (and occasionally it does), thus trumping the Quicksilver. If you''re looking to cut the difference between tube and solid state, this is a very sound choice: cymbals don''t burn and top to bottom, tones are focused and fixed in a broad stage against a blank background. It carries the whole musical spectrum well: acoustic instruments (guitar, chamber performances), voice, rocking electric guitars, and symphonic bursts. It is quite resolving in this system, although so is most everything else, particularly the Maggies and the Tara Labs. I do think it might grant more texture to the bass, but only to electric bass, and that could be a matter of instrument treatments, a factor intensified by the clarity PS Audio power cords bring to the low end. In sum, killer deal. With the right frieds, a real treat.

Similar Products Used:

Bryston BP-20, Quicksilver, Sonic Frontiers SFL-1

OVERALL
RATING
5
VALUE
RATING
5
[Apr 22, 2002]
Phillip Evans
AudioPhile

Weakness:

Shrill sound

I auditioned this at home with the A£cr power amp A3Cd and quad 989 speakers. I did not enjoy the sound and stopped listening after 30 minutes. It was too shrill and lacked tonal balance. I bought quads 99 and 909.

OVERALL
RATING
2
VALUE
RATING
2
Showing 1-10 of 23  

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