Pro-Ject: Head Box S2 vs Questyle M15i USB

Every tracked fact about the two, side by side - prices, history lows, ratings. No verdict: which one to buy is the visitor's decision, always.

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Pro-Ject: Head Box S2 Headphone Amplifier - Black Pro-Ject Now ₹23,730 at Turntable Lab Lowest on record ₹23,553 on Thursday, 22nd Oct, 2026 Full prices & history

Questyle M15i USB Portable DAC & Headphone Amplifier Questyle Out of stock at every tracked store Lowest on record ₹23,553 on Thursday, 22nd Oct, 2026 ★★★★★ 4.6 4.6 · 11 reviews Full prices & history

What is being compared

Both sides are DACs / headphone amplifiers. The rows below are the facts each store publishes for this shelf - converter chip, output power, inputs, balanced output and digital formats. A dash means the listing does not state that spec.

Spec Pro-Ject Questyle

Form factor — Portable

Type Amplifier DAC & amp combo

Price over the last 30 days

Daily lowest price across every tracked store, from the site's own price history. The line is one product's own range - the two cards are not drawn to a shared scale.

Pro-Ject: Head Box S2 Headphone Amplifier - Black Now ₹23,730 at its 30-day median Lowest on record ₹23,553 on Thursday, 22nd Oct, 2026 In stock at 1 tracked store

Questyle M15i USB Portable DAC & Headphone Amplifier No tracked offer in stock In stock at 0 tracked stores

Price gap right now n/a Both sides need a tracked offer to compare.

Stores with it in stock 1 vs 0 Active stores carrying each one right now - more stores usually means easier replacement and a steadier price.

The decision, factually

Cheaper right now Pro-Ject: Head Box S2 Headphone Amplifier - Black Lowest current price across all tracked stores.

Deepest discount ever seen Pro-Ject: Head Box S2 Headphone Amplifier - Black From each product's own recorded price history.

This page reports facts and expresses no opinion on which to purchase.

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