Marantz 8B Amplifiers

Marantz 8B Amplifiers 

DESCRIPTION

38 wpc (pentode) - 18 wpc (triiode)

USER REVIEWS

Showing 1-10 of 11  
[Feb 18, 2025]
specid


Strength:

Dither 1 mode has no problems, in either 16 or 20 bits. I don't know if this is a problem with the TacT or the Digital Time Lens. I can't wait to get the TacT RCS 2.0 room correction module to compliment the TacT Millenium MkII. Fayetteville Mobile Mechanic

Weakness:

None , .

Purchased:
New  
OVERALL
RATING
5
[Apr 26, 2024]
chaples19


Strength:

Faithful to the original design without cutting corners; thermal cutouts and detachable power cord keep my wife and Insurance company happier than having a "Vintage" Amp meltdown.- mobile mechanic near me

Weakness:

none . . .

OVERALL
RATING
5
[Sep 06, 2023]
cecelia


Strength:

I picked this up on a trash pile.the lady that owned it said it did not work and that her son had shorted it out. well, i asked if i could have it and she said yes. well to make a long story short i took the cover off and replaced all the fuses and low and behold it worked and worked amazingly well. Candy Cane decorations

Weakness:

None . .

Purchased:
New  
OVERALL
RATING
5
[Jan 28, 2023]
Breana


Strength:

You have a good system! Thanks for sharing address change usps

Weakness:

none so far

OVERALL
RATING
5
[Jan 19, 2023]
Dave500


Strength:

I've been a Marantz tube amp fan for over 4 decades. I'm currently using a fully restored 8b that looks like it just came out of the Marantz factory. I use it with a passive preamp, custom tube phono preamp, and upgraded Klipschorns. Talk about goosebump factor, the 8b is transparent and amplifies the music without coloring it. I use it in triode mode with vintage Genelex KT-77 output tubes, and NOS General Electric voltage amp & inverter tubes. I've tried many highly rated tube & solid-state amps, but nothing is superior to the 8b. The bass is well defined, midrange to die for, and clean high end. This amplifier brings the performers into my listening room. This amp is so good that many times I'm startled while listening, as it sounds like the music is live. These amps were built to last, and they do. The 8b is a keeper, I've owned it for almost 50 years! Take it from an Electrical Engineer who worked in the audio industry for over 40 years, the 8b is well designed, and has good iron (transformers). If you buy a vintage model, have all capacitors replaced, and check resistors for out of tolerence values. I had the electrolytic power supply can capacitors custom made, and painted them gray, like the originals. Using an 8b with vintage parts is like playing with a time bomb, something will fail, and the results won't be good. If you want honest sound, get an 8b!!!

Weakness:

No weaknesses, this is perfection!

Price Paid:
150.00
Purchased:
Used  
Model Year:
1964
OVERALL
RATING
5
[Mar 22, 2018]
Tubes4Ever


Strength:

The 8B reissue is a amp for moderate to high efficiency speakers. I am currently using the 8B (triode mode) in my secondary system using Altec 604E speakers in custom built 1930's "art deco". This is a near perfect combination that exemplifies what the 1960's would produce. Back in the 60's my first system was a Marantz 8B, a Dyna PAS 3X pre-amp, Rek-O-Kut turntable and Altec A7 speakers. The 8B with the Altec 604E is in some ways as good if not better than my primary system which is modified Klipschorns, tri-amped, active crossover, etc. I recently auditioned a Pass J2 and although it was a nice sounding amp I found it to not as musical to my ears as the VAC made Marantz 8B. I can't see ever selling the 8B. Wonderful job Marantz japan and VAC.

Weakness:

No negatives.

Price Paid:
2000
Purchased:
Used  
Model Year:
1999
OVERALL
RATING
5
[Feb 15, 2002]
Graham E Ware
AudioPhile

Strength:

Faithful to the original design without cutting corners; thermal cutouts and detachable power cord keep my wife and Insurance company happier than having a "Vintage" Amp meltdown. Beautifully made, the Marantz 8B reissue is at least as good as the original; better in my experience.

Weakness:

Sounded too bright to begin with, very temporary though. It''s a benchmark product as a Tube amp, pretty much beyond criticism. while it''s extremely forgiving; the real magic kicks in when you start using Speakers, and Preamp/Source that are up to the 8B''s standard; and that''s a tough call.

When the Marantz 8B reissue became available as a consumer product I must confess I was the soul of scepticism; how could they be any good compared to the original Amp? Well, an original 8B came and went, and my long term Vintage amp (Mac MC-225) came and went too. The Reissue 8B was unbearably bright when New, but settled down very quickly. There is no plan to onsell this one; it''s just one component that all the rest of my system can be "improved" around.

Similar Products Used:

McIntosh MC-225, Marantz 7C, 7T, -33, -3300 Preamps; Leak stereo 20, Leak TL-12''s.

OVERALL
RATING
5
VALUE
RATING
5
[Nov 06, 2001]
Randy Lennan
Audiophile

This is a follow up to my earlier review. I finally got around to switching the amp to triode mode. I didn't bother before, as my speakers are only 91 db/1w, and I thought 20 watts wouldn't quite cut it on dynamic material. Note the other guys are using horns (I hope to switch someday). The switchover to triode mode was reasonably easy. Marantz supplies the 100 ohm resistors you need in the amp and a post to dead end the screen taps. The only problem is they wrapped the resistor lead around the posts so tight that they were a bear to unsolder and remove. Once you got them off though, you just had to swing the one end over to pin 3 and you're done. I find that I MUCH prefer triode mode. The EL34 loves triode mode evidently, as it is seems to be much more linear in this mode. Sound now flows with a liquid ease. The amp is much more forgiving of upstream components and recordings now. Weird thing is, nothing is being hidden. It is still extraordinarily clear. And clipping is so gentle in this mode that I don't miss the power loss much at all. All I can say is WOW and then just smack myself upside the head for not trying the amp in triode sooner.

OVERALL
RATING
5
VALUE
RATING
5
[Aug 30, 2001]
Dan Higgins
Audio Enthusiast

Strength:

Detailed, near-holographic sound.
Superior build quality and point-to-point wiring.

Weakness:

None that I can see.

I agree with what has been said so far about the Marantz 8b.
I have run mine in both Triode and Pentode modes.
Both have their attributes. In Triode, the 8b relaxes a bit
and the sound flows in a very natural way. In Pentode, you
have the benefit of a tighter and more controlled bass.
Either way, the amp has a near-holographic sound quality. These amps have two sets of non-switchable inputs.
The set marked "Pre-Amp" is filtered on the extreme bottom end. The set marked "Test" is non-filtered. I have always found that the non-filtered set yielded the best sound.
I am using a Naim CD-5 player directly into the 8b with a
very high quality Alps 10k Pot and a set of rear loaded
horns that are made by Ed Schilling @ The Horn Shoppe.
It took a long time for everything to break in, but it was
well worth the wait. I also wanted to comment about Randy's
review on the break-in period. Alot of what he was hearing was the output trannies breaking in. Historically output
transformers can take years to fully break in and be their
best. I also am a stickler for using carbon resistors. Having built many pre-amps and amps over the years, I have noticed that everytime I have used metal film resistors that they made the music cold, bright and steely.
Give me the warm sound of "old-tech" resistors and capacitors! Happy listening to all!

Similar Products Used:

Audio Note Kit Four PP Tube Amp

OVERALL
RATING
5
VALUE
RATING
5
[Jun 05, 1999]
Mark
an Audiophile

The Marnatz model 8B reissue is the same as the 8B I had in my first system as a 15 year old in 1960's. At that time I used a Dyna PAS 3x for the preamp and a pair of JBL speakers and a Rek-o-Kut turntable. I in error sold the system in 1972, while in the Air Force. After my haiatus from audio and the return to it and to tubes in 1998, I longed for an 8B. I bought the 8B reissue commissioned by Marantz and made by Valve Amplification Company. I hooked it up, as it was in pentode mode and listened. Not bad, but then I hooked in in triode and it really started to sing.
I also have a Audio research D76A that was recently completely gone through by ARC. In compairson the D76A sounds dry whtile the 8B has texture and is very smooth. I am using a ARC SP6B preamp,Klipsch LaScalla speakers, Sony 601Es CD, Fulton Gold cables, and a Sony PSX75 turntable. I also have Altec 604b speakers with 501B mid horns. I must say the Altecs are nice speakers but the Klipach are more revealing.

In all I would reccommend the 8B and now I am looking for a Marantz 7C reissue to mate up with the 8B.

OVERALL
RATING
5
VALUE
RATING
Showing 1-10 of 11  

(C) Copyright 1996-2018. All Rights Reserved.

audioreview.com and the ConsumerReview Network are business units of Invenda Corporation

Other Web Sites in the ConsumerReview Network:

mtbr.com | roadbikereview.com | carreview.com | photographyreview.com | audioreview.com