tonymckenziecom | 4 years ago

Marshall developed a 'Signature' series of amplifiers for the kings of guitar including Hendrix, Slash, Malmsteen & Joe Satriani with designer Santiago Alvarez from Marshall. This RE-VISIT to the Marshall JVM410HJS Satriani amplifier shows everything you would ever want to know about this great tube amp.

In this review I re-visit the Joe Satriani amplifier with easily the most complete 'Inside and Out' close up that I am well known for on YouTube. This amp was bought by me for this review and there is playing in the video to show some of the sounds available. An ordinary persons opinion without sales incentives. Described further below the contents and other links below.

What you might learn:
Will this amp sound great?
Is this amplifier made in England?
What tubes does the JVM410HJS use?
Can I use this amplifier at home?
What's the Jim Marshall unique connection?
How well is this amplifier made?

Content:
0:22 The guitar I used
0:32 Played Channel 3 red mode with 'shift' on
2:08 Intro - a blast from the past
4:22 The chassis outside - inc. PT, OT, tubes & more
9:05 Inside the chassis: materials & build
11:30 Layout of the PCB's
The Main PCB
12:30 Power transformer
13:12 Regulation on board & fuses
13:44 connections for choke, board differences and BIAS
15:19 The back I/O board and 410H amp issues
16:40 Program HEX chip & MIDI chip. More on the back I/O board
17:50 Front control panels & pots used
18:25 Inter-board connections
18:40 Pre and Power amp section & BIAS point
19:34 Output transformer & output board
20:20 Input board & op amp chip
21:06 Biasing discussion
21:44 Final complete view of PCB's
23:18 Back of amp & I/O
28:30 Front controls and channels - channel 1
31:31 Audio example of channel 1 in red mode
33:44 Channel 2 controls
37:25 Audio example of channel 2 in red mode
39:58 Channels OD1 & OD2
42:55 Audio example of OD1 in the 'Orange' mode
45:30 The shift control button
46:10 Why OD1 & OD2 are the same
47:52 Audio example OD2 with shift on in the red mode - noise gate on
49:40 Noise gates and other controls
53:11 More about the effects loop
54:55 Midi port control
55:05 Balanced output
55:27 More about the signature amp series
56:34 The foot controller
1:00:15 Warranty and spares availability
1:01:38 The manual
1:02:03 Jim Marshall comments about this amp and Joe: The last he ever did!
1:03:55 Inside the manual
1:05:16 Other amp info & 410H amp problems resolved with the 410HJS
1:11:09 Summing up & conclusions
1:14:54 The rating or score of the JVM410HJS amplifier
1:16:05 Pricing and what they cost
1:17:25 Mullard tubes!
1:19:20 Important message
1:20:03 final studio comments and playing

Other information

I was really looking forward to this review at the time back at least eight years ago and decided to take a far more in depth review than I did at that time - a sort of 're-visit'. Why? well this amp is - like most in the signature series of products getting rarer and rarer and many guys will tell you that channel two in the 'red' mode make this amplifier probably the best Marshall rock amp ever made.

Where do we start with an amp like this?
This is a heavy amp at nearly 48 lbs in weight, but don't let that bother you. You can only buy these used these days and I can guarantee you will get value for your money... but don't take too long in finding one because these amps (along with all the signature amps) are going up in price these days.

There's also a limited edition too with 'blue or purple vinyl' and a 4x12 cab that claims different speakers. Maybe they are but my 1960a cab worked perfectly on this amp. The Limited edition originally cost £2199.00 in the UK and from what I see it was also available in the USA. I could only guess at the high prices they would ask at the time. I did see one of these with cab brand new 'clearance' (in July 2015) for the princely sum of £1400 (or $2100) which was a bargain.

There were only 500 pieces of this limited edition amp to be made. Note that apart from the vinyl and the cab, the amp circuitry is exactly the same as the standard amp under review here.

My original YouTube review is here: https://youtu.be/va-dOzTtq3k
My written original JVM410HJS review: https://tonymckenzie.com/marshall-jvm410hjs-satriani-review.htm

My written JVM410H review is here: https://tonymckenzie.com/marshall_jvm410h_review.htm

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