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Audio-Technica AT4040 vs Warm Audio WA-47jr

Both are transformerless large-diaphragm FET condensers near the same price, so the choice comes down to pattern flexibility versus a fixed, neutral cardioid. The WA-47jr gives you three polar patterns, a 157 dB max SPL and a 34mm K-47-style capsule; the AT4040 gives you a very low 12 dB SPL noise floor and a proven, flat cardioid sound. Buy the Warm Audio if you record drums, room sound or multiple sources with one mic; buy the AT4040 if you want the quietest, most predictable single-voice and instrument mic.

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Audio-Technica
Audio Technica AT4040 Large Diaphragm Studio Microphone

Audio-Technica AT4040

Audio Technica AT4040 Large Diaphragm Studio Microphone

See all prices and details

Choose the AT4040 if you record vocals, acoustic guitar or spoken word in a treated room and want the lowest self-noise and a fixed cardioid you can trust.

Pros
  • Very low 12 dB SPL self-noise for quiet sources
  • Flat, natural cardioid that sits well on most voices
  • Shock mount, dust cover and case included
  • Light at 360 g and easy to position
Cons
  • Cardioid only, no pad or pattern switching
  • No figure-8 or omni for room or mid-side work
  • Lower max SPL headroom than the WA-47jr
Warm Audio
Warm Audio WA-47jr FET Condenser Microphone

Warm Audio WA-47jr

Warm Audio WA-47jr FET Condenser Microphone

4.8(132 ratings)
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Choose the WA-47jr if you need multiple polar patterns, high SPL handling for drums and amps, or a '47-style capsule character on a budget.

Pros
  • Three polar patterns cover vocals, rooms and mid-side
  • 157 dB max SPL handles drums and loud amps
  • 34mm K-47-style capsule gives a warmer '47 character
  • Pad and high-pass filter built in
Cons
  • Heavier at 1.1 lb, so boom arms need to be sturdy
  • No published self-noise figure to compare directly
  • Comes with mounts but no carrying case

What separates them

Audio-Technica AT4040Warm Audio WA-47jr
Polar patternsCardioid onlyCardioid, figure-8, omnidirectional
Self-noise12 dB SPLNot published; transformerless FET circuit
Max SPL / dynamic range133 dB dynamic range, high-SPL capable157 dB max SPL, 138 dBA dynamic range
CapsuleLarge diaphragm, nickel-plated brass baffle34mm K-47-style large-diaphragm capsule
Onboard controls80 Hz low-frequency roll-off switch-10 dB pad and 70 Hz high-pass filter
Weight12.7 oz (360 g)1.1 lb (about 500 g)
Included accessoriesAT8449a shock mount, dust cover, carrying caseShock mount and hard mount
CircuitTransformerless, symmetrical, DC-bias true condenserTransformerless FET, solid-state

Price history

  • Audio-Technica AT4040: lowest $329.00 on Nov 2 at Sweetwater.
  • Warm Audio WA-47jr: lowest $299.00 on Nov 2 at Guitar Center.

Prices at every store

Audio-Technica AT4040

  • Alto MusicCheck price at Alto Music
  • AdoramaCheck price at Adorama
  • AmazonCheck price at Amazon
Prices and history →

Warm Audio WA-47jr

  • Guitar CenterCheck price at Guitar Center
  • WalmartCheck price at Walmart
  • Front End AudioCheck price at Front End Audio
Prices and history →

Specs compared

SpecAudio-Technica AT4040Warm Audio WA-47jr
Frequency Response20-20,000 Hz20Hz - 20kHz
Dynamic Range133 dB, 1 kHz at Max SPL138 dBA
Weight12.7 oz (360 g)1.1 lb
ElementExternally-polarized (DC bias) condenser—
Polar PatternCardioid—
Low Frequency Roll Off80 Hz, 12 dB/octave—
Open Circuit Sensitivity-32 dB (25.1 mV) re 1V at 1 Pa—
Noise12 dB SPL—
Signal-to-Noise Ratio82 dB, 1 kHz at 1 Pa—
Phantom Power Requirements48V DC, 4.2 mA typical—
Dimensions6.69" (170.0 mm) long, 2.10" (53.4 mm) maximum …—
Connector Type—XLR 3 Pole
Show all 34 specsShow fewer specs
SpecAudio-Technica AT4040Warm Audio WA-47jr
Interfaces—XLR
Included Accessories—Shockmount, Hardmount
Power Source—48V phantom power
Directionality—Cardioid, Figure-8, Omnidirectional
Format—Condenser
Subtype—Condenser
Type—Studio microphone
Diaphragm Size—Large-diaphragm
Signal Type—Analog
Use—

What reviewers say

Audio-Technica AT4040

Owners and reviewers treat the AT4040 as a dependable, neutral-sounding condenser that punches above its price. It is most often praised for low noise and clean detail on vocals and acoustic instruments, with some noting it is brighter than tube-style mics.

What people mention
  • Noise floorPraisedOwners say the 12 dB self-noise keeps quiet sources clean.
  • ToneMixedMany call it natural and balanced; some find it bright on certain voices.
  • BuildPraisedThe brass body and included shock mount feel solid and durable.
  • FeaturesCriticisedReviewers miss a pad switch and alternate polar patterns.

Warm Audio WA-47jr

  • 4.8 / 5132 ratings

Owners rate the WA-47jr highly and describe it as a warm, detailed mic that punches far above its price. Most praise centers on vocals and acoustic instruments, with the multiple patterns and included mounts called out as useful extras.

What people mention
  • SoundPraisedOwners describe a warm, detailed tone that flatters vocals and acoustic instruments.
  • ValuePraisedBuyers say it delivers '47-style character for far less than vintage or high-end tube mics.
  • Polar patternsPraisedThe cardioid, figure-8 and omni options are seen as useful for different sources and rooms.

Questions and answers

Which is better for recording vocals?
Both work well. The AT4040 is the safer pick for clean, quiet vocals thanks to its 12 dB SPL noise floor and neutral cardioid. The WA-47jr adds a warmer '47-style color some singers prefer.
Which handles loud sources better?
The WA-47jr. Its 157 dB max SPL and -10 dB pad make it the better choice for drums, guitar cabs and close-miked amps. The AT4040 is rated for high SPL but has less headroom on paper.
Do I need the WA-47jr's extra patterns?
Only if you record room sound, mid-side stereo or multiple sources at once. For straight cardioid vocals and acoustic instruments, the AT4040's single pattern is not a limitation.
Which is quieter?
The AT4040, at a published 12 dB SPL self-noise. Warm Audio does not publish a comparable noise figure for the WA-47jr, so the AT4040 is the safer bet for very quiet sources.
Is the WA-47jr worth it over the AT4040?
It is worth it if you need three patterns, a pad and high SPL handling. If you only record cardioid vocals and acoustic guitar, the AT4040's lower noise and included case make it the better value.
What comes in the box with each?
The AT4040 ships with the AT8449a shock mount, a dust cover and a carrying case. The WA-47jr ships with a shock mount and a hard mount, but no case.

More comparisons

  • Audio Technica AT4040 Large Diaphragm Studio Microphone vs AKG C214
  • Rode NT1 5th Generation Condenser Microphone vs Audio Technica AT4040 Large Diaphragm Studio Microphone

Buying guides that pick them

  • Best studio recording microphones
Studio recording
Impedance—100 Ohm (Output)
Form Factor—Condenser
Durability—Nickel Plated
Style—'47 style
Material—Solid-state
Cable Length—20'
Depth—52 mm
Height—210 mm
Width—52 mm
Max SPL—157 dB
color—Multicolor
size—8.3"
  • AccessoriesPraisedReviewers like getting both a shockmount and a hardmount in the box.