Personal amp evolution


Seeing the over night success of the speaker evolution thread, it may be interesting to see what type of amp(s) we have all run. Same deal as the other thread-we will sort of create a puzzle of our systems you'll have to visit multiple threads to put everything together!!! ;)
For me I started:
Adcom GFA-565 monoblocks
Rotel RB-990bx
Jeff Rowland Design Group Model 5
Balanced Audio Technology(BAT) VK-60

either a CAT JL2, BAT VK-75se or Tenor 75Wp on the horizon.
tireguy
Yamaha A1 1990
Classe CA 200 1997
Classe CA 400 1998 (awesome for the price)
Added one more Classe CA 400 2000
Jadis Orchestra Ref ( 2004- still have it for bedroom system)
MBL 9008a monoblocks - 2007
Zanden 9600 Monoblocks - 2008 ( In current system- Put everything else to shame!) Here to stay for very long long time
Nil - You've sure had some changes since we last spoke! Glad to see your still into the hobby.
EICO HF52 (mono integrated amp)
Dynaco Stereo 70
Dynaco Stereo 120
McIntosh MC 250
McIntosh MC 2100
Crown D150A
Apt One
Perreaux (forget model)
Audio Research D79C
Goldmund Mimesis 6
Bryston 7B ST monoblocks

The Brystons are my "keep forever" amps.

Apollo66
Hi Tim, glad to hear from you too. I can't say I have seen your posts here at Agon lately. Keep them comin'. How you been and if you have made any changes ? (to amps to keep in line with thread subject ;-))
Brian, of course its really me :)

Nil, I very seldom lurk, let alone post these days, I just happened to pass through the forums and saw your reply was the most recent and thought I'd say what's up! I've missed a few updates, but am casually on the market for a new amp right now, I just want to try something different - as much as I claim to not be an audiophile, the curse is still with me. Life has been great on my end, sold my business a little over a year ago, have a few small projects going now, nothing that takes much time though, I've been focusing on catching up on the time I lost with my former crazy work schedule. Planning on moving in about a year to a slightly warmer climate, driving a S2000 with not a care in the world, it's glorious. Still have the NSX? How's things with you???
Tim, Yes once you are audiophile, the curse remains-always. Well, it is nice to have some free time and relax and enjoy life. Me, I have to wait till I retire which is decades away.

Things are great with me, still in California, driving a 2002 triple black Boxster S and 2005 black G wagen. Never had a NSX, but that was my dream car in the 90's, still like the look of it though- a classic look.

I highly recommend Zanden 9600 monoblocks, a little pricey for a casual search, if you are in the market for a great amps.

Good luck with your search.
I don't think that is the first time I've made that mistake about the NSX, perhaps it is me looking into my crystal ball and seeing your future :)
Forgot my Crown D150:

KLH Model 11 portable record player
Eico kit amplifier
Dynaco Stereo 120
Harman Kardon Citation 12
Phase Linear 400
Crown D150
Audio Research D76
BRB Systems Model 200
Audio Research VT100 II (since 2002)
I now have the Norwegian Hegel H4A amp.Incredible!Why they do not market here in the US is beyond me.Voted best amp in Norway and Japan.
This will make the third time I've posted to this thread and each time about a 2 year interval. Again, I've sold off the entire system and now have a Blue Circle integrated. I just wasn't listening that much lately but when I do, still want a good listening session. I'm very happy with this set-up.

So much gear to choose from and not enough time to play with it all.
My list of amps I haved owned is short but maybe non typical....Phase Linear,Accuphase P300,Hafler 500, Platinum Model Two's,VAC 70/70 and finally a pair of VAC 140's.
You notice I went from SS to tube....but I still have the Accuphase,Platinum,and all the VAC's. The VAC's to me are a step and a big one at that above all the rest. It's probably one or two of the greatest amps ever produced IMHO. I doubt they will ever be duplicated again.
McIntosh MA-6100, Harman Kardon Citation 16A, Phase Linear 400 Series II, Carver M-400 (two, strapped in mono), Yamaha M-40, McIntosh MC-2300, Harman Kardon Citation 16A.. which is where I stop. Without question, the Citation 16A is the best balanced amp I have ever heard. I always end up going back to it, and it always reveals something that the other amps I have used failed to do. I know its old school, but it's got an indescribable magic to me.
Onkyo 504 RS
Symphonic Line RG1 mk II
BAT VK 200
Perreaux 350P
Pass Aleph 30
Leak stereo 20
OCM 500
Leak stereo 20
PrimaLuna Dialogue II
Plinius SA50 mk III
Here's my amp/int amp/rec'r journey from 1984 to 2008:

1. yamaha M50, crown straight line 1 preamp
2. Sansui AU717
3. NAD 2155, Luxman preamp, Acoustat TNP pre
4. B&K ST140, Acoustat, TNP pre, Music reference RM5 mkII pre & dyna PAS 2
5. Dynaco ST70, Dyna PAS 3
6. McIntosh MC225, Music Reference pre
7. B&K EX442 Sonata - sounded almost exactly like the Paoli's), Music Ref pre
8. Paoli M60 monoblocks, Music Ref pre
9. cj MV50, Music Ref pre
10. Music Reference RM9, Music Ref pre
11. AMC CVT-3030
12. Mac 1900 Rec'r
13. Mitsubishe DA-R7 rec'r
14. Creek 5050 int.
15. Acurus A80, Hegeman Hapi2 pre
16. Early Korneff 6bq5 SE int.
17. John Ecklund PP6bg6 triode
18. Custom KT66 SE int (from ebay)
19. Onix OA-21s
20. ads A-2
21. JVC 80 watt class A int.
22. Musical Fidelity B1
23. Kailin 6bq5 int
24. Rawsonte Brick gainclones, Superphon Rev. Basic Dual Mono preamp

And the most memorable/best sounding: Mac MC225, Korneff, 6bg6, Onix, the B&K's, Paolis, gainclones

And the worst sounding/bigest disappointment: cj (just didn't mate up with the MR preamp & wish I had a PV5), Musical Fidelity B1, Kailin (fans just too darn loud), MAC1900 (tuner fabulous but early SS harsh sounding amp)


1999 clayton s40
2000 bat vk60
2001 rowland model 10
2002 belles 250 int
2003 rowland concerto int
2007-present shindo montille
GE Stereo built to look like component receiver.
Pioneer integrated amp - SA8100 (I have had it since 1975 and can't bear to part with it though it no longer works.)
A couple of different Pioneer receivers (probably a step back in retrospect.)
Marantz 1040 (I think) Amp
Marantz MA500 mono blocks
Parasound HCA-1200
McCormack DNA 0.5
1982 - Onkyo integrated
1983 - Accuphase integrated
1985 - ARC D115
1987 - VTL 225
1989 - Krell KSA80
1990 - Classe DR8 or 9?
1991 - Rowland Model 8
1992 - Mark Levinson 23.5
1992 - VTL 300
1993*- FM Acoustics 611
1994 - VTL Ichiban
1995 - VTL 90 (W.E 300Bs)
1996 - Cary 805 (211 SETs)
2000 - ARC REF600 mkI
2002 - Jadis JA200
2005 - ARC REF600 mkIII
2008*- FM Acoustics 611
(Tried, tested and proven--alternating with my 'various others' for the last 15yrs--still the one to beat! Sold the rest)

2009 - FM Acoustics 1811
(Hopefully, when I get a windfall..)
1970 Soundesign "stereo" record changer and speakers

1979 Technics SA 200 receiver

1981 Hafler DH 200

1982 Hafler DH 220

1984 Hafler DH 500

1985 Adcom GFA 555

1993 Aragon 4004 MK II

2001 Mark Levinson 23.5

Random spares and/or bedroom:

Naim Nait II integrated,
Behringer A500s,
Quatre "Gain Cell",
Marantz AV receiver,
Vintage Marantz Receiver

Hmmmmm......I think I am ready for new amps!
1953: The year I was born my Dad broght home a monophonic Grundig receiver with LP player. It lasted until. . .
1967 Christmas: Braun 30W stereo integrated;
1977: Sony ST5055(?) integrated, which moved with me when I moved out of my parent's place;
1981: Luxman 40W receiver -- my first independent audio equipment purchase;
1987: Aragon 4004 stereo;
1998: Jeff Rowland Model 7M monos;
2008: Jeff Rowland 312 stereo.
Streetdaddy,
I think you listed a bunch of amps in a preamp evo thread. You might want to give it another try. Happy Thanksgiving!
Ah, this a great thread.

My amplifier evolution began from an XAM Mk 3 integrated at at age 5.

Since then:

Harmon Kardon Citation 30

Marantz 2230 receiver

Kenwood KA-8100

Belles 1 amp and preamp

Naim NAC72/NAC32.5/Hicap/NAP110 -- later on NAP160, 250, & 135 monoblocks

Other amps/preamps along the way:

Krell KSA 50
Classe DR-4
Classe DR-5
Classe Audio DR-2
Classe Audio DR-3VHC

Audio Research D70MKII

Bedini 25/25 Serial #50 -- one of the good ones before Bedini went to the cheaper version with smaller heat sinks
Every speak with John Bedini? Fascinating guy to talk to -- especially about his free energy experimentation with Tom Bearden.

Electrocompaniet Ampliwire II

Mark Levinson ML-1, ML-6A monoblock preamps with separate power supplies

Paragon E preamp -- neat two piece jobber with a massive power supply for a preamp -- real nice sounding too

Quicksilver 8417 (6) tube version monoblocks
Quicksilver Mini-Mite monoblocks (presently own)

Antique Sound Lab Wave AV 25 monoblocks (presently own)

Naim Nait 3 integrated (had a few of these) My favorite was one I had modified so that the amp and preamp sections were split with a jumper that was added to the back of the unit.

Tremendous flexiblity allowing for use with an outboard power supply like snaps, flatcap or Hicap. Could also be used as a separate amplifier. As I recall it sounded very nice with a Hicap inserted between the NAC 92 preamp and NAP 90MK3 amp -- what the Nait3 really was -- an NAC92 and NAP 90.3 shoehorned into one box. The best sound of course was using the Nait3 as a preamp/Hicap and then your choice of amplifiers.

Naim NAC 42/NAP 110 (presently own plus an olive NAC 62 and original chrome bumper (green light Hicap serial number 44,XXX something).

Presently I use my old Naim NAC42 and NAC62 with a Hicap to run my Electrocompaniet Ampliwire AW65, Quicksilver and ASL tube mono blocks; they sound terrific -- noticably better than with my NAP110 (which while still a cool amp needs a service).

Electrocompaniet Preampliwire IIA (presently own)

Electrocompaniet Ampliwire 65 (presently own)

NAD 3130 integrated (presently own)

Many FM tuners as well, plus a few cassette decks, speakers etc.

Enjoy the music!
JimmyBlues
1. Panasonic (2 years)
2. Pioneer (4 months)
3. Yamaha (3 years)
4. Parasound (8 years)
5. Audio Valve (9 years)
6. Bryston (one month)
7. Krell (2 months)
8. McCormack DNA (6 months)
9. McIntosh 501 monos (1 month)
10. Llano (1 month)
11. Jadis JA-500 (2 years)
12. Lamm M2.1 (1 year)
13. Krell (still)
14. Musical Fidelity KW Monons(2 years)
15. VTL 750 (6 months)
16. Tube Research Labs GT-400 (still)
17. Tube Research Labs GT-800 (keeping it until I die)
Heathkit AD27 (I still have it) 1969
Dynaco Stereo 80 (I have a NOS ST80 in a box)
Dynaco Stereo 70
Dynaco Stereo 120 (Replaced my popcorn poper)
Pioneer SA-9100
SAE 31b MKII
Technics SE 9060
Phillips AH 578 (lots of slam, HOT,you could fry eggs on it)
Dynaco 400
Kenwood LO-7M
Dynaco Mark III (modified by VanAlsitne) 1980
Audio Research D79 (to many problems but sounded great)
Hafler 500
Threshold 400A
Audionics CC2 (I still have)
Dynaco ST70 (modified by VanAlstine)1984
The birth of my first child 1985
VanAlstine Omega III 440HC 1996
4-Dynaco MKIII (Modified w/Triode Elec. boards, SDS power supply,w/4pr NOS Genalex KT88's)(I still have)
VanAlstine Omegastar EX 440HC (I still have)
VanAlstine Ultimate 70 (this is a great little amp)(I still have)
Audio Research D400 MKII (I still have)
Audio Research VT200 (the best so far)
Hafler DH200 driving ADS L980's
Roberton 4010 driving L980's (SS amp w/tubey sweet sound)
PS Audio 200C driving Apogee Duetta's (Ouch!!)
ARC D350 (Never figured this amp out)
ARC D110 (Made my Duetta II's sing!! My favorite combo)
Levinson ML-9 (No power, but super sweet on the Duetta's)
Levinson ML-3 (Found out what the Duetta's can really do)
B&K ST200 & Mirage M3si. (Bad Trip)
Levinson 23 & Mirage M3si's (We're getting there)
--For My First Update since 2003---
ARC D400 Pair (Biamped Duetta II's then Diva's)
Krell FPB 300 (Impressive Bass on Diva's)
Krell FPB 600C (Not even close to the FPB 300)
Levinson 335 Pair (Biamped Diva's & Mirage M3si)
DBX BX-3 My first introduction to audio so I did not have much experience but I could tell this amp could not cut it. Any cheap Japanese amp could best it anytime.

Sony TA-N77ES Powerful, detailed but a little rough on the edges

Adcom GFA 5800 Worst amp ever encountered. No detail at all. Like listening behind a thick curtain.

Onkyo M508 Nice. Detailed. Kind of sweet sounding. I still have this amp

Parasound HCA-220II Another awful amp. No detail, flabby bass. Never want to see it again

McCormach DNA-2 Powerful, warm sounding. Kind of like tube. This is my present amp.

I am thinking of going tube next but it will need to supply lots of juice because of my demanding speaker.
Since 1968....

1) Acoutic Research (AR) Receiver
(early SS sound)

2) Crown D150
(early ss sound- not much better but pretty!)

3) Phase Linear 400
(Hey this is good. Killed the Crown)

4) Phase Linear 700B
(noticeable step down from 400)

5) Phase 400 modded
(2 power supplies, output stage 250,000 uF, all metal films, upgraded caps, no protection circuit - oops....) Fantastic, very good even by today's standards).

6) B&K ST-140
(over-hyped. Whimpy power supply)

7) Hafler DH-200 Kit
(nice & great value but not Sota)

8) Hafler DH- 200
Pooged (much better per Audio Amateur caps,various circuit changes)

9) Counterpoint Sa-20
(very nice - too warm lots of stages & coupling caps)

10) Pass Lab Aleph 2s monos
(a classic)

11) Threshold S/550e
(Another classic but I really hate moving this beast)

12) Counterpoint NP220
(SA20 fully modded) Sweet!
Carver “The Receiver 150”
Yamaha RX-V 590
Yamaha RX-V 990
B&K Ref 20 (pre)
ATI 1505
VTL ST 85
Adcom GFA 5500
McCormack Deluxe 1
McCormack DNA 225
Perreaux E160
EAD TheaterMaster Ovation (upgraded to Ovation 8){pre/pro}
Cinepro 3K6 Mark II
EAD PowerMaster 6300
Accuphase E-308 intergrated (2nd system)
ADA PMA60 (running bridged)
McIntosh MC 2007 (for rears)
Bryston 4B ST (running bridged for CC)
and two MC 352's (gone)
Current main amps McIntosh MC1.2KW mono blocks 1200 watts each (sick huh?)
1984 Technics SA-290 (I think..)
1992 Yamaha (not sure on model)
2004 Yamaha RX-V1600 (still have it as a surr processor)
2005 Adcom GFA-555
2007 Hafler DH500
2008 Hafler 9500
2009 McIntosh MC7200
DYNACO 416 with outboard capacitors
then 20 year hiatus of not owning any stereo equipment at all.
Got back in about 2004 with a modest Krell KAV250 then
400cx
then a disastrous two weeks with Edge NL-10
and now krell EVO 402
Hafler DH 220
NAD "Power Envelope" something or other
Adcom GFA 5800
Outlaw RR2150
Primaluna Prologue One
Moscode 401HR
Marantz receiver (38 wpc)
Yamaha
Adcom
Sunfire
Sunfire Signature (5 ch, gobs of power)
McCormack DNA-500 (2 ch, ditto)
VAC Phi 300.1 (tube magic)
VAC Phi 300.1 (2 in monoblock config)
DONE!!
Starting in early high school 29 years ago and I still have the sickness.

- HH Scott tube receiver
- Techniques receiver
- B&K ST 140
- B&K ST 202 Plus (still own it)
- Arragon 8008 (borrowed long term from a friend)
- Bryston 4B ST
- H2O Audio S250 Signature (still own it)
- Pass Labs X250.5 (still own it)

Out of the bunch of amps above, the Pass X250.5 stands out above the rest.

Preamp evolution
- Belles something-or-other (my dad now has it)
- Self designed passive unit (since trashed for parts)
- Audible Illusions Modulus 3A (loved it but it wont drive low impedance loads)
- Adcom GFP 750 (borrowed long term from a buddy)
- Self built Transcendent Sound Grounded Grid (still own it)
- Audio Research Corp LS-26
- H2O Audio Fire (still own it, love it)
- Pass Labs XP-10 (will receive it soon, can't say anything about it yet)

Alan
Hi Alan,

While I respect your choice, I wonder if you ever soldered Sonicap Platinum bypass caps on your H2O amps? Have you auditioned any NOS CDP? Those two changes, and the copper ribbon speaker cables transformed my H2O sound from rather SS like, to profoundly transparent and musical.

I use to own Pass Labs amps, the X150, and X600. Most recently I heard the X600.5 and XA100 monos. Both amps have certainly been improved over the ones they replaced.

Still, I would not consider trading the H2O for any Pass amp. The difference is not small. either. I am talking about my system. I mentioned a couple winning improvements I made.

I bet the Fire really helped the Pass amp. I also tried the Pass XP10. It was pretty darn good, but I was happy to keep my Fire.
Hi Vince,

My S250 does have the Sonicap bypass caps and the latest modules. And yes, I did buy an NOS DAC or two, and really find them extremely musical (MHDT Labs Havana, recently replaced by a Wavelength Cosecant V3).

I don't think the Pass amplifier was designed to run extremely low impedance loads like your Apogees, so it would not be an ideal fit. I think the H2O S250 has about the most well controlled bass I've ever heard from any amp in my system. Still, my speakers are not nearly as difficult to drive as yours, and in my system the Pass X250.5 has more life and presence in the midrange / lower treble, and a more expansive sound stage than the H20 amplifier. I still enjoy the H20 amp in my bedroom system, but I think the strengths of the H2O amp probably shine with more difficult loads.

The Fire is, without a doubt, the finest preamplifier I've had in my system. It mates beautifully with the Pass X250.5 (except for the problem of too much overall gain). I have compared it extensively with some very good preamps from Cary, Audio Research Corp, and BAT. While I probably could have lived happily ever after with the Cary, the Fire is less colored, reaches deeper in the low bass regions, and throws such beautiful midrange and high frequencies that its hard to believe its a solid state preamp. It is the most transparent yet engaging preamp I have come across. As I write this, I am listening to a recording that I have always loved for its composition and melody, but has traditionally been a little harsh through even some very pricey preamps. It sounds great through the Fire.

I still haven't received the Pass preamp yet, so I can't comment on a comparison. It should be coming tomorrow evening. I would think the Pass preamp will have the advantage of being the latest of a design specifically mated to the same company's latest series of amps. However, the Fire seems to offer so much more for the same amount of money. I would be kind of surprised if the Pass can stand up to the Fire's power supply and regulation. Still, I wouldn't have to be making this comparison if Henry could do something about the overall gain of the Fire. I won't trade sound quality for convenience, but I'll see in a couple of days.

Alan
A complete update of my amps so far - just switched from 2A3 SET to Shindo PP amp:

1988-93 Pioneer A-656 MKII (ALR Nummer 3 stand speakers)
1993-97 Harman Kardon HK1400 (ALR Nummer 3 stand speakers)
1998-03 Rega Mira (Original) (Mission 751 monitor speakers)
2003-04 Linn Classic (Mission 751 monitor speakers)
2004-04 Linn Wakonda/LK85 (Mission 751 monitor speakers)
2004-05 Jolida JD302B (Mission 751, Spendor S3/5, Omega Super 3)
2004-04 Audio Aero Prima (very nice, but returned due to problems)
2004-04 Unison Unico (awful sound, sold after 3 months)
2005-06 Sonic Impact T-amp (Cain Abby)
2005-06 Fi Y pre and First Watt F1 (Cain Abby)
2005-09 Fi Y pre and Super X 2A3 amp (Cain Abby)
2005 Bottlehead S.E.X amp (Cain Abby, now headphone amp)
2009 Shindo Monbrison preamp and Montille 6v6 tube amp (Cain Abby)

The amps I have kept the longest so far are the Harman, Rega, and Fi amps, each about 4-5 years.
Aljordan,
I would be very interested to read your impressions of the H20 Fire and the Pass XP-10 in your system with the Pass amp. Thanks.
Peter
Pair of 5 watt Lafayette tube mono amps
Dynaco SCA 35
Dynaco Stereo 70
Pioneer SA 9900
HK Citation 12 Kit
Conrad Johnson 75a
Audio Research D-79b
Audio Research D-350b
Custom Dyna MK III dual Mono Stereo amp (No dyna circuitry)
Modded CJ 75a, different input circuitry, KT-77s
HK Citation V
Custom MK IIIs monoblocks

Consonance Billie, 300b SET, highly modded*

Consonance Cyber 211, bought based solely on glowing reviews, Tried all the NOS tubes recommended, soft bass, somewhat veiled, and lack of treble. Very pleasant sounding though, which in some systems could be a plus.

Gotham 39s, modded, Mundorf silver/gold in oil caps, Same circuitry as Canary 339s, other than output transformers, 45 vs 50 watts, and caps.

The two starred amps are simply superb, the best I have owned. The Canary 309/339s are grossly underrated by the audio community, and do give you glories of the SET sound, with more muscle.
Started in 1973 with
Tandberg Huldra 10
Tandberg TR2080
Sony ES
HK PA 2400 Signature upgraded
HK AVR8500
Bladelius Thor 1 (good soundstage, but to week for demanding speakers)
Soon Mc Cormack DNA 500
Future PBN AX and HT4 combo in sorround.
Heh - a strange combination of history here:

Dynaco 70
Scott LK-72
Dynaco Mark IV monoblocks
Marantz 250
Harman Kardon Citation V
Heath UA-1 monoblocks
(yet another) Dynaco 70 refurbished/upgraded
Dynaco Mark IIIs refurbished/upgraded
Threshold S/500 (!!)
Marantz 2270 receiver (1974 - present)
Harmon Kardon HK 430 receiver (1980 - 2002)
Hafler DH 220 (1981? - 2002)
Yamaha 770? receiver (1996 - 2002)
McIntosh 275 reissue (2008 - present)
Cary SLA 70 Signature (2009 - present)
Don't remember dates but started about 1974
Harman Kardon HK 430 Reciever
Yamaha CR2020 Reciever (1977)
Harman Kardon HK 770 Stereo Amp
Harman Kardon HK 775 x 2 Twin Mono Amps
Conrad Johnson MF-200 (1990 to present)
Bryston 4B-ST (2009 to present)
Added a Wyetech Topaz 211 A amp.
This is a single ended 18 watt stereo amp.
Who said that SET are flea powered.
This one weighs in at 110 lbs.
Audio Note output transformers.
Along with the Wyetech also picked up a Supratek preamp.
not nearly as experienced as many here, but...

denon integrated
pioneer elite integrated
levinson no.29
atma-sphere s-30

i can't imagine wanting / needing anything more that the S-30...
Well, this is very interesting. I wonder if after all our personal "sonic" evolution the "perfect" sound tends to be more and more similar between audiophiles or if it continues to vary widely.

Anyways, I started with Japanese equipment, then moved on the Quad 33 and 303. Decided that the preamp was weak so changed it for a Qued. Upgraded the Quad amp. and kept it for a while then changed it for a Rega. Liked it so bought the preamp. and the their big CD player and floorstanding speakers (with the Rega speaker cable).

I then heard a Naim system and liked it (250 amp, 102 preamp with highcap and Naim speaker cables. Kept it for 5 years. I then heard the best amp. I had heard so far, the Robertson 4010 coupled with a Conrad-Johnson PV1 and B&W DM-4 speakers. I liked it so much that after a few listening sessions I sold all my Naim stuff and bought just that, a Robertson 4010, with a Conrad Johnson PV14sl2 and DM-4 speakers. Meanwhile I had discovered the Audionote DACs and got rid of my CD player (vastly inferior to the DAC).

I've been looking to match the Robertson 4010 musicality and natural qualities, but could not so far. I just bought a Mark Levinson 23.5 amp. but have not had the time to listen to it enough to judge. I've got a Robertson 6010 being repaired (I've been told that it was more musical than the 23.5).

I will have to compare the three of them (if I ever managed to revive the 6010) and decide which I prefer; but I tell you, the 4010 is difficult to top (for a suitable room for this amp. that is), but the ML, from my preliminary sessions looks very good).

I've made speakers myself and sold some. I've heard many kind and size of speakers, but none so far beat my DM4 (for the size of room I have). I've maid a pair of speakers with an engineer friend with Scanspeak 10" woofer, its little brother (4") as a midrange driver and a Revelator as a tweeter. We play this in a 80'x30'x20' room and we travel at the speed of light.

My interconnects are Audioquest Colorados and my speaker cable are Kimber 8tc.

Best regards,
I have now compared the ML 23.5 and the Robertson 4010, and I have to say that the Robertson proved too subtil for the ML, whose power was impressive but this amp. lacked nuances.

On my system anyways.

Best,