Matching a amplifier to speakers


Hello.

I had a thread a while back on picking a amp for my system.

It was suggested that I pick my speakers first as to not make a costly error.

I ’am back now that I have bought a set of speakers.

Just to reiterate my currant modest system is as follows,

Auralic Vega g1 streamer/dac

Rega p6 turntable with exact cartridge

Nackimichi CD player

McIntosh MX110 tuner/preamp

Adcom GFA-545 power amp

My currant speakers are Polk M10’s

The new to me speakers are Dynaudio Focus 360’s

I listen to 70% rock,pop,and blues and 30% jazz and classical

My listening space is 13x20 

My budget is 5000 or less.

I have read that these speakers need a lot of currant and a good amount of watts to sound there best.

I would like to go ss if possible,as my preamp is fairly warm sounding,but I’am open to suggestions.

Since I have been looking at audio gear and buying a couple new items,I have tried to re-evaluate my listing habits and goals.

I have a general habit of starting each listening session with a known favorite at modest volume,and see where that takes me.

Sometimes I do get inspired to crank some loud rock for maybe 20 minutes,and then return to regular programming.

Since getting tidal and a streamer,I have rediscovered the joy’s of exploring unfamiliar territories.

I say this to try to express my need to have a amplifier that can do rock,yet have the ability to check out new styles with clarity,and accuracy required.

I know it would be a good idea to go to a bunch of audio shops and shows ,but I'am probably not going to do that .

I will most likely narrow it down to a couple,then go check them out.

Thank you.

 

 

 

twangy57

@twangy57 Wrote:

The only other amp I have found so far that has a impedance close to what I need  is the Parasound Halo 21+

Parasound Halo 21+ Input Impedance (SE): 33 kΩ see specifications below: smiley

’’Specifications

Power Output (8, 4, 1 Ohm): 300 W, 500 W, 1,000 W

Inputs: Stereo RCA, stereo XLR, DC trigger

Input Impedance (Bal., SE): 66 kΩ, 33 kΩ

Gain: 29 dB

Dimensions (WHD): 17-5/8" x 7-1/8" x 20"

Weight: 71 lb.’’

Mike

 

 

Amplifier input impedance should be at least 10x (I have had good luck with at least 20x) the output impedance of your preamp or source (whatever is driving the amplifier).  To determine power requirements, you can play with the this (linked) calculator as a starting point.

ditusa's avatar

ditusa

1,973 posts

 

@twangy57 Wrote:

The only other amp I have found so far that has a impedance close to what I need  is the Parasound Halo 21+

Parasound Halo 21+ Input Impedance (SE): 33 kΩ see specifications below: smiley

 

That's strange I could of swore it was 100k bal and 84 un bal.

I must have been thinking of another amp.

Thanks

Does anyone have a Rogue amp with KT=120's

I'am looking at a pair of M-180 mono-blocks with 180 watt's per side.

Do these tubes have a decent lifespan?

Are they  readily available at a affordable cost?

I also Imagine with 8 power tubes these amps will put out some heat.

Thanks

Four output KTs are driven pretty hard to produce 180W of power, thus lifespan will not be great, likely below 2000h.