Musical Fidelity A5cr 2ch Pre-amplifier and Power Amplifier.
Hmmm following some recommendations from a couple of people I decided to take this pair home this weekend for demo and now I’m smitten !
As some might know my 2ch pre search goes back about 2 years ago when my current 2ch musical fidelity pre was playing up. Fortunately or unfortunately my 2ch pre got fixed up, however in the time I managed to demo some pretty interesting stuff in the $2500-$8000 price range including 2ch integrated amps and pre-power amps. What it highlighted to me very clearly was the importance of a good 2ch pre and the benefits it can bring, plus also the very different sound characteristics of the previous brands, their strengths and in some cases their weaknesses.
My key requirements on the features side for a 2ch pre have been remote control, HT input/HT bypass/HT direct switching to allow my 2ch system to be better integrated into the HT side of my system. Other requirements is a built in MC Phono stage though this wasn’t a essential requirement as could always use a separate unit for this. And lastly for the power amp side of things although still very much in love with my mono blocs have kept the mind open that there might be a better amp stage out there with similar characteristics and better refinement. All of which bringing me to this demo.
My auditioning included :
Part 1 (Friday night) – 2ch listening (CD & vinyl), multichannel music(SACD & DVDA) & watching a movie live on TV.
Part 2 (Saturday) – my usual test DVDs including sections from movies and music DVDs
In summary this combination is a cracker for 2ch music very much in the vein of the musical fidelity sound of old but with much much more refinement. Overall they have an energetic sound thats clean with very good detail, excellent clarity and soundstage all of which making them extremely suitable for HT. I’d see them as the heart of a serious 2ch system or as a very worthy upgrade for anyone looking to move their HT system to maximise 2ch performance without compromise.
The equipment:
Teac CD transport
Rega P25 turntable, musical fidelity phono stage
Musical fidelity valve DAC (circa 1992)
Denon 2900 dvd/universal disc.player
Harman Kardon AVR630 as a pre-pro
Elektra theatre 7 multichannel amp
Teac DVB820 HD stb
Richter Centre and Bipole surrounds, Thor sub & Subsonic rears
Musical Fidelity Pre and two 150W mono blocks driving (L&R)fronts
Mission 753 fronts
Speaker cables - linear crystal(centre), Vandenhul(fronts), cable talk flat(surrounds) & Linear crystal (rears)
Interconnects – Cinema cable vector VI multichannel for in/outs from/to HK AVR630, Jaycar Response interconnects to connect upto 2ch pre. Vandenhul, audioquest & verisilmitude for RCAs and coax interconnets between 2ch gear.
Acknowledgements
Many thanks to Paul & Rab from CAV for lending me the A5cr Pre-Pwr combination to check out at home.
The trial gear
Musical Fidelity A5cr Stereo Pre-Amplifier ($4000)
http://www.carltonaudiovisual.com.au/?q=node/view/346
http://www.musicalfidelity.com/mf/en/Products/A5/a5cr_pre
along with Musical Fidelity A5cr Stereo Power Amplifier ($4000)
http://www.carltonaudiovisual.com.au/?q=node/view/347
http://www.musicalfidelity.com/mf/en/Products/A5/a5cr_pow
Both are extremely smart looking with matt finish anodised aluminium fronts with black side rack handles and black heatsinks and casing combined with silver knobs and buttons and tiny blue leds (quite similar look to the rotel pre/pro-pwrs). Both are heavy(pre 14kg, pwr 19 kg) yet compact chunky looking.
The pre-amp is remote controlled using a quality Alps remote controlled vol control. Key features for me in the Pre are built in MC Phono stage & the very important one a HT bypass/ HT direct input allowing the pre-pwr combination to be integrated with ease into any HT system. To integrate into a HT system front L&R output are run from your HT AVR/pre-pro to the HT input on the A5cr Pre. When the HT input is selected on the A5cr pre the volume control is bypassed and signal from your HT AVR/Pre-pro is sent directly to the A5cr power amp to drive your fronts.
Interestingly the power amp has switchable dual inputs allowing some additional additional possibilities of using two sources though I did not explore that side of things. The power amp has two sets of speaker binding posts for biwiring. Some comparisons with my Elektra theatre 7 is interesting. The mf power amp has less heat sinks and runs a touch warmer than the Elektra theatre 7 but nothing to be worried about. In configuration it has some silmilarities to the Elektra theatre 7 in that both have a large toroidal transformer in the centre. Interestingly both the Elektra & the mf power amp both run the same Sanken amp stages and both bolted directly to the heat sinks either side of the amp. The Elektra uses 2 sanken amp stages per channel the mf uses 8 per channel 16 in total. The mf is spec’d to produce a massive 250Wpc and 200A of current the likes of which my main speakers have never seen before. The Elektra uses top quality nichicon muse capacitors and mf just their standard jamicon ones though has many many more in place than the elektra does. And that’s where the similarities end. To maximise channel separation The mf power amp is fully dual mono – as though it were two mono blocs built into the same case and completely symmetrical in design for the left and right channels.
An important key design feature for the pre and power amps is the ‘cr’ signia indicating they are choke regulated. Something mf has used in their top amps for the last three series to provide noise filteration. To implement this they have two additional power supplies inside the pre and power amps along with the main torroidals.
Both the Pre and pwr amp are made in Taiwan as per all the mf gear now but extremely well built. Could not see any signs of compromise and electrical work that I could see through the lid looked first rate as well. The components used are the same mf used previously with their UK made gear. Good news with the Taiwan made mf gear is the big drop in prices. The model previous model to the A5, the mf A308 pre-pwr for instance, cost $6000 a pop vs the $4000 each that the A5 combo.
The material:
Run Lola Run - title and opening scene using the DD5.1 soundtrack – this movie in the initial opening has good demonstration of low sub bass, spatial information, test of soundstage, projection of sounds, sound pans and vocals.
Morcheeba, Brixton to Beijing concert. DD5.1 track. Track 4 Tape Loop. Good for testing atmospherics, Vocals, a bit of sub plus good workout for the mains & surrounds with the concert and audience.
Master and commander chapter 4 – in DTS the scene with Canon balls is incredible test of sheer impact of a system, bass & sub setup, surround capability and sheer dynamics.
The Village ch 7, 17 & 19 – in DTS ES awesome test of atmosphere, detail, soundstage, scale and dynamics
Family Man – live of digital feed from teac dvb820 HD stb using Logic 7 7.1 decoding off the stereo sound track good test of surround processing, vocals and detail capabilities.
Meshell NdegeOcello – Plantation Lullabies, Tracks 5,6&7 – great mid to low bass, very good detail, vocals and soundstage.
Angelique Kidjo – Oremi, Tracks 10,11 & 12
Nitin Sawhney – Prophesy Tracks 1,2 & 3
plus many more tracks from some of my CDs, SACDs and vinyl :
Bjork – Debut
AIR Moon - Safari
Diana King - Think Like a Girl
Dire Straits – Brothers in Arms (SACD)
Daina Krall – Look of love (CD & SACD)
John Lee Hooker – The Healer
Enya – shepherd Moons & Water mark
Beth Orton – Central Reservations
Eric Bibb – Spirit of the blues (SACD)
Sade – Promise (Vinyl)
St Germain – Tourist (Vinyl)
Part 1 – (Friday night) – 2ch listening (CD & vinyl), multichannel music(SACD & DVDA) & watching a movie live on TV.
I’m a big 2ch fan and if buying these amps 2ch would be the no 1 reason so best thought I’d check that out first. I decided to start things off simply. Unhooked my existing mf pre and mono blocks and swapped them with the A5 pre-power. Hmmm noticed a very slight hum coming from the power amps toroidal and also a tiny bit of a hum coming out the fronts not significant but I would have preferred it if it wasn’t there !. Tried taking power off different sockets and also moving interconnects but the slight hum remained. Anyways after that I left the system powered and coasting for the next hour.
Listened to some CDs from 6pm Friday evening and First up I put in Enya’s watermark on CD. First thing that hit me was I was swamped with sound – the room filled with sound to the extremities. Second thing I noticed was the extended bass- I could hear it and feel it. Next up very noticeable the extended highs and clarity with which I could hear details – very noticeable with vocals for instance where I could hear inflections and textures never heard before.
Swapped to Diana king’s think like a girl CD – a very dynamic CD with a great bass line. I’d been listening with the pre’s vol control at the quarter to mark (around 60db). Decided to bump it up to the ‘10 to’ mark (70-80db). Beautiful dynamics, still extremely clean, love the bass line – there were sections where bass wafts through the room which I don’t think I’ve experienced on my system before. What I like about the bass is its there to be heard and felt but not overpowering. With the Diana king CD there are things going on everywhere and much more distinctly placed with the A5 combo whereas they sort of blend in to the mix with my old mf pre-power.
Followed up with a few more of my favourite CDs and then coming close to 8:30pm so thought probably time to hook up the A5 combo for HT. Ran two RCAs from analog outputs from my AVR straight to the HT input on A5 pre. Selected HT on the A5 pre Ran test tone on the Avr found had to drop level for the mains from +4 down to –5.
Watched ‘Family Man’ on ch9 using Logic 7 processing of the mpeg soundtrack. With my Elektra theatre 7 driving my centre, surrounds and rears and the A5 driving the fronts, impressions were vocals clean and clear, good pans across the screen. The A5 seemed to blend in pretty well without any clash in the sound between the centre or the mains or other speakers. During one of the breaks I swapped to the ‘we were soldiers’ movie going on another channel first thing I noticed was soundstage across the front – height seemed a bit more width about the same as with my mono blocs.
After the movie back to more CDs and then did some listening with vinyl to check out the A5 pre’s inbuilt phono stage. I was happy to find the built in phono stage is a step above my old mf phono stage. Quite enjoyed both the Sade and the St Germain records I played through. Had a richer sound to what I’m used to, cleaner much more enjoyable listening overall.
By this time it was about 2:15am and thought time for bed. God knows what the wife thinks is up with me being up so late but fortunately she was busy too working on the computer and most likely completely forgotten about me !. Decided to leave the amps on overnight so all warm and ready to go in the morning……
Part 2 (Saturday) – my usual test DVDs including sections from movies and music DVDs
After a bit of a sleep in, Saturday morning decided to check out some music and movies on DVDs after all the mains are a big part of the HT sound so important to check out the A5 in HT.
First up was Morcheeba, love this music DVD have listened/watched it many times. For me the one stand out with the A5’s in the system was front soundstage height definitely higher than with my mono blocs. Also noticed could quite happily crank it up without it starting to sound on edge or hard which I sometimes find with my old mono blocs. Certainly very clean sounding and yes very enjoyable. Particularly liked the high soundstage and the big ‘being there’ sound that I like.
Next up one of my recent favourites ‘The village’. Starting with ch 7 where the male lead walks beyond the boundaries of the village and enters the forest. Cranked it up to –15db and ohboy the atmosphere – and for the first time I actually realised the sound track creating the atmosphere is an actual orchestra with real instruments – had always thought it just electronic before. As the male lead walks in upto the red bush the snapping of twigs on the forest floor to the left and the growl & breathing from the unseen beast is superb. Also great is the waft or gushes of wind that go through as the beast appears to move out of scene. Superb scene for testing it all out atmosphere, detail, soundstage, scale and dynamics. Next up ch 17 and 19 also great as tests of dynamics and can make you jump especially if you haven’t seen it before. I didn’t make me jump, but was pretty happy with the dynamics there.
Next up Master and commander the opening scenes love the creaking of the ship all around you. Also noticed the sound of everything swaying infront of you with the swaying of the ship. The canon ball scene does not seem to have lost any of the impact or sheer dynamics and energy with this combo.
Finally tested Run Lola Run – the opening scene which still has the beaut effect of the wind draft of the pendulum swaying side to side and the steering and panning effects and test of vocals. With the casino scene had a listen to the ball going around and it still goes all around the room and lola’s scream still has all the shrieking energy I remember.
Some conclusions
The HT input works like a dream, and makes it very easy to integrate into any HT system. The remote control for switiching and vol control is a good addition for me as is the built in MC phono stage which is of superior quality ot my mf outboard stage.
Apart from the hum issue which hopefully is just installation related, both the A5 pre & pwr are extremely well built. The power amp runs a little warmer than say the Elektra but not hot and looking at the quality of the workmanship looks like something that would take me through another decade as my previous mf pre-pwr setup has.
The A5 combo is beaut for music with its clean, detailed & open, energetic sound and has a character very well suited to home theatre. Whether the sound characteristic is to your liking I cannot say and you will have to find out for your self. For me they suit me very well for HT and music and a good upgrade from my mf pre & mono-blocs I love so much.
PS check the link below for a pic of the A5 pre-pwr as I had in place for the demo.
http://www.dtvforum.info/index.php?showtop...ndpost&p=277726
