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Recommended CDs

This is a list some of the recordings that have been used to evaluate the sound quality of this amplifier. 

The LP version can be superior, but it is difficult to obtain.

Most recording engineers today try to make the music sound fine on the cheapest stereo systems, 

simply because they are in majority and thus brings more sales of CDs.

The following recordings will test the limits of a eigh-end system, from the subtle to the outrageous. 

They combine this with being very enjoyable for the artistry of the musicians and composers.

Verve 521485-2

Verve Grammy Winners Stan Getz/Joao Gilberto track 9, "The Girl from Ipanema"

This recording gave Phil Ramone a Grammy for best sound in 1964. 

Many years later, it still allows you to dim the lights, make a nice cool drink and imagine you are in 

Brazil with the girl standing very close to you, singing her song quietly in your right ear.

This is what a high-end system is all about, to recreate the past so vividly, that the emotions of the 

past performances can be experienced again and again.

It is interesting to hear how different the same track sounds on Verve 521 414-2, the digitally 

re-mastered version of the album. And then try hearing the LP from 1963, Verve V6-8545.

Reference Recordings RR-70CD Stravinsky, Eiji Oue conducting the Minnesota Orchestra

The full dynamics of Stravinsky requires a HDCD recording. The quiet opening of the first track lets 

you hear the sound of the concert hall, and the big drum will surprise your friends or your speakers.

Almost visual three-dimensional sound.

"The rite of spring", well, Stravinsky wrote this based on the sacrifice of young girls to please the old 

gods. It is not pleasant for the humans involved, and it should not sound pleasant. 

If you want to relax, choose the next CD instead.

dmp CD-457, Warren Bernhardt, “Hands On” 

The first track opens up with a very grand piano played in classical music style, which later transforms 

into very relaxed jazz. Natural detail indeed; you hear the piano sound as felt hammers hitting metal 

strings, and also the unique series of resonances from strings, metal frame and wood. 

A fine Steinway or a Bösendorfer grand piano costs about EURO 100,000.

Is it reasonable to expect a stereo system costing much less to reproduce it perfectly?

Deutsche Grammophone 427 772-2, “Horowitz at home” 

The poor studio technician had to come to the master’s home this time and make this recording. 

Fascinating, very difficult recording to reproduce, but with a core of golden inner details..

Compare the two types of piano sound, this and dmp. A good stereo system must highlight the 

differences between different recordings and play both of them well.

Vertigo 800 051-2, Dire Straits, “Dire Straits”. 

Track 4, "six-blade knife", is actually better than several of the later recordings. 

This is due to the mixing console; the expensive console used for the later recordings is known for 

its harsh sound, but it was used in many large studios due to its excellent automated mixing computer 

system

Yes, there is tape hiss, but the detailed bass guitar and soft drums are wonderful to hear. 

Summary of Contents for M250i

Page 1: ...M250i Mono Power Amplifier Userguide...

Page 2: ...n 4 Cleaning the cabinet 5 The protection circuitry 5 A second of silence 5 Connecting your loudspeakers 5 Loudspeaker impedance 6 A lifetime of enjoyment 6 Normal use 6 What you can check if there is...

Page 3: ...and shorten the life of the set DO NOT switch the amplifier on then off then on again quickly The blue light must disappear completely before you switch on again Only switch on and off using the powe...

Page 4: ...e ground first and disconnect it last This way XLR connectors can be plugged and unplugged while the amplifier is switched on However some DC from the preamplifier may still cause loud clicks so it is...

Page 5: ...short circuit still is present it waits a second and tries again and so on One second after the user has removed the faulty cable the system will quickly remove the muting The protection also detects...

Page 6: ...terminals go positive when there is a positive signal on the Pin 2 on the input XLR In other words GamuT amplifiers are non inverting Some other brands of amplifiers do not follow this standard Keep...

Page 7: ...all click can be heard from inside the amplifier they confirm that the amplifier has connected the loudspeakers using the output relay One second later still there will be another click in the loudspe...

Page 8: ...et sound the amplifier is probably OK Try exchanging the input cables with another cable and check that it transmits a signal by connecting it to antoher amplifier If you only get the mechanical click...

Page 9: ...nteresting trivial facts It may interest you to know that the output voltage is 55 times the input voltage at maximum gain However the input signal current in the 20kOhm RCA input is only 38 8uA at fu...

Page 10: ...oncert hall and the big drum will surprise your friends or your speakers Almost visual three dimensional sound The rite of spring well Stravinsky wrote this based on the sacrifice of young girls to pl...

Page 11: ...but who cares when the drama unfolds like this It is like seeing with your ears The new remastering EMI 7543 5 566281 2 1 fortunately retains most of the magic Telarc CD 80098 Erich Kunzel and Cincin...

Page 12: ...s only music is capable of It is Gamut s mission to give to you these unique musical feelings As with every GamuT product our amplifiers are designed with the capability of giving you the best possibl...

Page 13: ...Sigg rdsvej 2 DK 6818 rre Denmark Tel 45 70 20 22 68 www gamutaudio com info gamutaudio com...

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