Resistors
/
MResist High Load
Mundorf MResist High Load MResist R25 4.7 Ω 25 Watt resistor
MResist R25

R25-4,7

Rugged workhorses for correction circuits and power networks.

Product consulting
Find a retailer

Technologies

Non-magnetic connectors

No magnetism in the signal path. No hidden side effects

Non-Magnetic Connections

Non-magnetic connections minimize micro-microphone modulations in the current path. In a power supply capacitor, the current flows not only through the coil, but also through the connecting wires and contact points — and this is exactly where ferromagnetic materials can produce undesired effects. Non-magnetic connection materials avoid magnetization and hysteresis in the conductor and thus reduce current-synchronous, very fine impedance modulations. This is a micro-microphonic measure in the actual power path: The connection is closer to the ideal conductor, without “magnetic interference.” In addition, there is additional electrotechnical benefit because non-magnetic, highly conductive materials often lower and stabilize contact and transition resistances. As a result, energy is available more evenly at the amplifier stage — and the sound remains quieter and more controlled.

Tonal effects

  • quieter background and less “grit” with complex music
  • more stable transients because the current path is less finely modulated
  • clearer contours and cleaner room images at high levels
  • more consistent sound quality due to more stable contact and conduction conditions

Learn more
Tight Tolerances

Make sure that the left and right channels work identically, important for stable stage and positioning.

Tight Tolerances

Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.

Tonal Effects

  • precise, stable soundstage without drifting
  • Coherent overall impression: left and right channels fuse into a single, seamless whole
  • characteristic sound is reliably retained even after component replacement/repair
  • More stable virtual center and clearer spatial layering

Learn more

Technical data

Article number
R25-4,7
Resistance
4.7 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Inductance
0.80 µH
Voltage rating
800 VAC
Connections
Ø0.80xL35 mm
Temperature range
-30°C/-22°F...+220°C/+428°F
Temperature coefficient
±300 ppm/°C
Conductor material
Copper-Nickel Wire
Core | Potting
Ceramic | Cement
Downloads
No items found.

Similar configurations

1 VARIANTS

Sort by
Article number
R25-8,2
Resistance
8.2 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-6,8
Resistance
6.8 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-5,6
Resistance
5.6 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-56
Resistance
56 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-47
Resistance
47 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-3,9
Resistance
3.9 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-39
Resistance
39 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-3,3
Resistance
3.3 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-33
Resistance
33 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-2,7
Resistance
2.7 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-27
Resistance
27 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-2,2
Resistance
2.2 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-22
Resistance
22 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-1,8
Resistance
1.8 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-18
Resistance
18 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-1,5
Resistance
1.5 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-15
Resistance
15 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-1,2
Resistance
1.2 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-12
Resistance
12 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-1,0
Resistance
1.0 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
Article number
R25-10
Resistance
10 Ω
Power handling
25 Watt
Dimensions
L60xH13xZ15 mm
Connections
Ø0.80xL35 mm
No products are available that match the current filters.
Reset filters

Similar products

Mundorf MResist High Load MResist R25 56 Ω 25 Watt resistor
R25-56
Non-magnetic connectors

Non-Magnetic Connections

Non-magnetic connections minimize micro-microphone modulations in the current path. In a power supply capacitor, the current flows not only through the coil, but also through the connecting wires and contact points — and this is exactly where ferromagnetic materials can produce undesired effects. Non-magnetic connection materials avoid magnetization and hysteresis in the conductor and thus reduce current-synchronous, very fine impedance modulations. This is a micro-microphonic measure in the actual power path: The connection is closer to the ideal conductor, without “magnetic interference.” In addition, there is additional electrotechnical benefit because non-magnetic, highly conductive materials often lower and stabilize contact and transition resistances. As a result, energy is available more evenly at the amplifier stage — and the sound remains quieter and more controlled.

Tonal effects

  • quieter background and less “grit” with complex music
  • more stable transients because the current path is less finely modulated
  • clearer contours and cleaner room images at high levels
  • more consistent sound quality due to more stable contact and conduction conditions

Learn more
Tight Tolerances

Tight Tolerances

Tight tolerances in capacitance, inductance, and resistance ensure that capacitors of one type are very close together in terms of their electrical properties. In crossovers, the left and right channels therefore work virtually identically: crossover frequencies, level ratios and phase positions match closely. This is the basis for stable, precise stereo imaging and reproducible results — in series production and also after service.

Tonal Effects

  • precise, stable soundstage without drifting
  • Coherent overall impression: left and right channels fuse into a single, seamless whole
  • characteristic sound is reliably retained even after component replacement/repair
  • More stable virtual center and clearer spatial layering

Learn more

Contact

Thank you! We have received your request and will get back to you shortly.

Oops! Something went wrong while submitting. Please try again.

Dealer search

As a private customer, you can purchase Mundorf components through our authorised dealers, including advice, ordering and shipping.

Sample request

Customer info

Contact

Next

Project info

Message

← Back

Thank you! We have received your sample request and will get back to you shortly.

Oops! Something went wrong while submitting. Please try again.

Dealer search

Sample orders are currently available to business customers only. To buy products, please contact one of our dealers.

Dealer search

Retailers
Tuning

Our retailers supply Mundorf components for DIY builds, repairs and upgrades and, depending on their range, advise on selection.

Deutschland
Acoustic Lab
Nettetal
www.acoustic-lab.de
51.3155,6.2714
Deutschland
DE
Haendler
Amplifier Surgery
Downers Grove
www.amplifiersurgery.com
41.7937,-88.0102
Nordamerika
US
Servicepartner
Art of Sound
Saarbrücken
www.eckhorn.com
49.2344,6.9964
Deutschland
DE
Servicepartner
Art & Voice
Hannover
www.artundvoice.com
52.3745,9.7386
Deutschland
DE
Servicepartner
ASWO International
Eime
www.aswo.com
52.0746,9.7212
Deutschland
DE
Haendler
Audiohum
Cordoba
www.audiohum.com
37.8846,-4.776
Europa
ES
Haendler
AudioKit / Audiokit
Aprilia (LT)
www.audiokit.it
41.5969,12.6419
Europa
IT
Haendler
Audiophonics
Floirac
www.audiophonics.fr
44.8327,-0.5208
Europa
FR
Haendler
AudioXcel
El Masnou, Barcelona
www.audioxcel.com
41.4797,2.3118
Europa
ES
Haendler
Audiyo
Richmond Hill (ON)
www.audiyo.com
43.8801,-79.4393
Nordamerika
CA
Haendler
Axiomedia
Villasanta (MB)
www.axiomedia.it
45.6041,9.2999
Europa
IT
Haendler
Banzai Music
Berlin
www.banzaimusic.com
52.5174,13.3951
Deutschland
DE
Haendler
BTB Elektronik
Fürth
www.btb-elektronik.de
49.4886,10.9587
Deutschland
DE
Haendler
D Force / dynaudio.jp
Miyagi
www.dynaudio.jp
38.388,140.9761
Asien
JP
Haendler
DIY shop.vn
Ho Chi Minh City
www.diyshop.vn
10.7737,106.7166
Asien
VN
Haendler
Don Audio
Grefrath
www.don-audio.com
51.3361,6.3437
Deutschland
DE
Haendler
ENJIA Audio / NKAUDIO
Guangdong
www.nk-audio.com
23.1358,113.1983
Asien
CN
Haendler
Exproject
Plovdiv
www.exproject-bg.com
42.1419,24.7499
Europa
BG
Haendler
Finstor / audio-hi.fi
Espoo
www.audio-hi.fi
60.205,24.656
Europa
FI
Haendler
FreQuence Denmark
Lunderskov
www.frequence-shop.dk
55.4836,9.3003
Europa
DK
Haendler
Guangdong Zhuojuyue Audio
Foshan
www.jujoy-audio.com
23.024,113.116
Asien
CN
Haendler
hifibau
Wesseling
www.hifibau.de
50.8247,6.9811
Deutschland
DE
Haendler
HiFi Collective
Milton Keynes
www.hificollective.co.uk
52.0407,-0.7594
Europa
UK
Haendler
HifiSound
Münster
www.hifisound.de
51.9625,7.6252
Deutschland
DE
Haendler
hoer-wege
Schwanewede
www.hoer-wege.de
53.2255,8.5943
Deutschland
DE
Servicepartner
ICOM
Tallinn
www.icom.ee
59.4372,24.7573
Europa
EE
Haendler
Klangmeister
Lemgo
www.klangmeister.de
52.0281,8.9013
Deutschland
DE
Servicepartner
Lautsprechershop
Eggenstein-Leopoldshafen
www.lautsprechershop.de
49.0883,8.4003
Deutschland
DE
Haendler
Madisound
Middleton
www.madisound.com
43.0963,-89.512
Nordamerika
US
Haendler
Mediavector / AudioAlchemy
Cluj-Napoca
www.audioalchemy.ro
46.7694,23.59
Europa
RO
Haendler
Ngo Huy Toan / diyaudio.vn
Ha Noi
www.diyaudio.vn
21.0283,105.854
Asien
VN
Haendler
OpeM Studios
Mittel- und Suedamerika
MX
Servicepartner
PowerAudio
Katowice
www.poweraudio.pl
50.2137,19.0059
Europa
PL
Haendler
Soundforum
Seoul
www.soundforum.co.kr
37.5667,126.9783
Asien
KR
Haendler
SoundImports
Groningen
www.soundimports.eu
53.2191,6.568
Europa
NL
Haendler
Soundlabs Group
Mittagong
www.soundlabsgroup.com.au
-34.4501,150.4473
Australien
AU
Haendler
TheAudiocrafts
New Delhi
www.theaudiocrafts.com
28.6139,77.209
Asien
IN
Haendler
TLHP
Bourgbarre
www.toutlehautparleur.com
47.9959,-1.6163
Europa
FR
Haendler
Tube Fans Audio
New Taipei City
www.tubefans.com.tw
25.038,121.4341
Asien
TW
Haendler
Vacuum Tube Values
Lakewood
vacuumtubevalues.com
39.7086,-105.0847
Nordamerika
US
Haendler
World Audio Distribution
Riga
www.worldaudiodistribution.com
56.9494,24.1052
Europa
LV
Haendler