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415 ACOST BASS M408

415 ACOST BASS M408

Regular price ¥1,500 JPY
Regular price Sale price ¥1,500 JPY
Sale coming soon
Taxes included.

Single and Mix Mic IRs

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IR Compatibility Database

IR Compatibility Database & Format Guide

Manufacturer Model Supported Format Max IR Length Notes

IR Format Guide

• IR Length Options

You can choose from two recording lengths:

200ms → Shorter recording (lighter data)
500ms → Longer recording (includes more natural reverb)

However, most devices only use up to 21-46ms of the recording. Whichever you choose, your device will automatically adjust to the length it needs, so feel free to select based on your preference.

• Sample Rate Options

Use 96kHz, 48kHz, or 44.1kHz folder to match your device.

• File Types

RAW: Natural acoustic response (recommended)
MPT: Minimum Phase Transform - phase-aligned for mixing different cabinets without phase issues

Based on model: 1970s, Acoustic™ Model 408 Bass Cabinet
Speaker: 4 x 15″ Speaker Original speaker

We provide IR data from historical cabinets crafted over half a century ago. This 415 ACOST BASS M408 cabinet is an impulse response product modeled after the actual Acoustic™ Model 408 4 x 15″ Bass Speaker Cabinet used by Jaco Pastorius during a live performance in Japan. This cabinet is equipped with original vintage 4 x 15″ speakers, renowned for their exceptional quality, delivering incredibly powerful performance. The speakers are wired for 2 ohms.

Single Mic | 10 IRs Included

SM57

57III = Shure™ SM57 Unidyne III

Well-balanced vintage dynamic microphone

VR1

1VR = sE Electronics™ VR1

Ribbon mic with rich low-end character

EV20

EV20 = Electro-Voice™ RE20

Variable-D technology. Industry standard for bass instruments.

MD421

M421 = Sennheiser™ MD421

Dynamic mic renowned for detailed response and punch

U87

U47f = Neumann™ U47fet

Classic large-diaphragm condenser microphone with warm, rich tone.

Microphone Mix IRs | 16 IRs Included

Combine two different microphones to bring out their unique characteristics. For example, blend the warm ribbon tone of the 1VR with the punchy attack of the 57III for a more versatile and balanced tone.

The numbers in the filename (e.g. 7-3, 6-4, 5-5, 4-6, 3-7) indicate the blend ratio between the two microphones. For example, 7-3 means the first microphone is mixed at 70% and the second microphone at 30%.

SM57
70%
30%
VR1

Downloads

Click any of the buttons below to download the manuals and guides for TacoSounds IR products:

IR Sections
Our digital products are intangible digital items, therefore returns and exchanges are not possible after purchase. All sales are considered final upon completion.
If you encounter any issues with files or installation process, or if you need support to maximize the benefits of your purchased product, please feel free to contact our support team. Contact us at support@tacosounds.com.