// iclaude.org — engineering tools

APPS LAB

Six precision instruments for the technically-minded listener.

9 Instruments

4,200+ Calculations

Real-Time Computation

No Login Required

Canvas Visualization

Free Always

SELECT INSTRUMENT

Electrostatic

SyncroStax^™

Electrostatic headphone energizer compatibility — score impedance, voltage headroom, and bandwidth in one pass.

Acoustics

RoomIQ^™

Room resonance calculator — map axial modes, Schroeder frequency, and problem bass nodes from room dimensions.

Vinyl

ToneArc^™

Turntable cartridge alignment studio — calculate overhang, offset angle, and null points for Baerwald, Löfgren, or Stevenson.

Headphones

PowerMatch^™

Headphone amplifier pairing — verify your amp can drive your cans to reference level with real headroom to spare.

Monitors

LevelForge^™

Reference level SPL calibration — find the amplifier power your monitors need and how long your ears can safely take it.

Cables

CableIQ^™

Analog cable capacitance analyzer — quantify RC rolloff, phase error, and -3dB point for any source impedance.

Gain Structure

GainStage^™

Preamp gain staging calculator — optimize input sensitivity, stage gain, and noise floor for a dead-quiet signal path.

Vinyl

VinylWear^™

Record playback wear calculator — estimate groove stress, stylus wear rate, and safe play count by tracking force and tip geometry.

Vacuum Tubes

TubeMap^™

Vacuum tube operating point calculator — plot the DC load line, find the quiescent point, and check if your bias puts you in Class A or AB territory.

SyncroStax^™

Electrostatic Headphone Energizer Compatibility Calculator

Electrostatic

Impedance @ 1kHz 145 kΩ

Capacitance 110 pF

Energizer Output Voltage 270 V

Bias Voltage

Efficiency (dB/100V) 101 dB

—

Drive Current (μA)

—

Volt Headroom (%)

—

-3dB Point (kHz)

—

SPL @ Rated V (dB)

SCORE —

// INTERPRETATION

Adjust parameters to generate analysis.

RoomIQ^™

Room Resonance & Acoustics Calculator

Acoustics

Units

Length 5.2 m

Width 4.0 m

Height 2.7 m

—

Volume (m³)

—

Schroeder (Hz)

Mode	Axis	Freq (Hz)	Status

// INTERPRETATION

Adjust dimensions to generate room mode analysis.

ToneArc^™

Turntable Cartridge Alignment Studio

Vinyl

Effective Arm Length 230 mm

Alignment System

Arm Effective Mass 10 g

Compliance (μm/mN) 15 μm/mN

Cartridge Weight 6 g

—

Offset Angle (°)

—

Overhang (mm)

—

Pivot-Spindle (mm)

—

Resonance (Hz) —

// INTERPRETATION

Adjust parameters to generate alignment analysis.

PowerMatch^™

Headphone Amplifier Pairing Calculator

Headphones

Headphone Impedance 32 Ω

Sensitivity (dB/mW) 100 dB/mW

Target Level (dB SPL) 90 dB

Amp Power @ 32Ω 250 mW

MATCH RATING —

—

Power Needed (mW)

—

Voltage Needed (mV)

—

Headroom (dB)

—

Damping Factor

NEEDED —

▲ AVAILABLE AMP OUTPUT —

// INTERPRETATION

Adjust parameters to generate pairing analysis.

LevelForge^™

Reference Level SPL Calibration

Monitors

Room Size

Monitor Sensitivity 87 dB/W/m

Listening Distance 2.0 m

Target Level (dBSPL) 85 dB

—

Power Cont. (W)

—

Power Peak (W)

85 dB SPL

—

Safe Duration

—

K-Weight Offset

—

SPL at Position

// INTERPRETATION

Adjust parameters to generate calibration analysis.

CableIQ^™

Analog Cable Capacitance Analyzer

Cables

Cable Type

Capacitance (pF/m) 100 pF/m

Cable Length 2.0 m

Source Impedance 47 kΩ

CABLE GRADE —

—

Total Cap. (pF)

—

-3dB Point (kHz)

—

Atten @ 20kHz (dB)

—

Phase @ 10kHz (°)

// INTERPRETATION

Adjust parameters to generate cable analysis.

GainStage^™

Preamp Gain Structure Analyzer

Gain Structure

Source Output Level dBu

-10

Preamp Gain dB

Output Load kΩ

Target Output Level dBu

GAIN STRUCTURE —

System Gain

—

Output Level

—

dBu

Headroom

—

SNR Est.

—

// INTERPRETATION

Adjust parameters to generate gain structure analysis.

VinylWear^™

Record Groove Wear Estimator

Vinyl

Tracking Force g

1.8

Stylus Type tip radius

Plays Completed

Record Grade

GROOVE STRESS —

Groove Stress

—

0–100

Wear per Play

—

index

Total Wear

—

Safe Plays Left

—

plays

// INTERPRETATION

Adjust parameters to generate wear analysis.

TubeMap^™

Vacuum Tube Load Line & Bias Calculator

Vacuum Tubes

Plate Supply B+ V

250

Plate Load Resistor kΩ

Cathode Resistor Ω

200

Grid Bias V

-20

OPERATING CLASS —

B+ Supply

—

Q Plate V

—

Q Current

—

Plate Dissipation

—

// INTERPRETATION

Adjust parameters to generate tube operating point analysis.