Infinity Kappa 8.2i Series II
At 36kg each, these towers need space and power - and they give back a strong sense of presence.
Overview
The Infinity Kappa 8.2i Series II is a floorstanding passive loudspeaker built for resolution and scale. It stands just over a meter tall. It has a 30.5cm (12") IMG woofer and three additional specialized drivers, making a 4-way bass reflex system. Owners report a speaker that doesn’t shout and lets the sound unfold with natural ease, especially in midrange clarity and high-frequency air. According to available documentation, the design centers on a computer-optimized outboard crossover, a rare feature at the time, which suggests measured, engineered performance over voicing by ear. These are not forgiving speakers in small rooms or underpowered systems. Multiple sources say they need high-current amplification to perform as intended. When properly driven, the speaker disappears sonically and leaves an open, three-dimensional field.
Specifications
| Manufacturer | Infinity |
| Product type | Loudspeaker |
| Type | Passive |
| Positioning | Floorstanding |
| Driver Configuration | 30.5cm (12") IMG woofer, a 15cm (6") IMG midbass coupler, a 7.6cm (3") Polydome midrange, and a 28mm (1.1") Series II EMIT-R tweeter. |
| Frequency Response | 32 Hz - 35 kHz (+/- 2 dB) |
| Frequency Response | 32Hz - 35 kHz @ +/- 1.5dB, and 27Hz - 45 kHz @ +/- 3dB |
| Sensitivity | 89 dB |
| Port Position | Rear |
| Way system | 4-way |
| Nominal Impedance | 4 ohms |
| Crossover frequencies | 180 Hz, 700 Hz, 4700 Hz |
| Dimensions | 20" H x 13" W x 9.5" D |
| Dimensions | 122.6cm(H) x 41.9cm(W) x 30.3cm(D) |
| Weight | 36kg each |
| Original Retail Price | $1200/pair |
Key Features
30.5cm IMG Woofer with 4-Way Bass Reflex Design
The Kappa 8.2i Series II is built around a 30.5cm (12") IMG woofer, paired with a 15cm (6") IMG midbass coupler. Together they handle the low end in a rear-ported 4-way bass reflex configuration. That allows deep extension, down to 27Hz under relaxed tolerance, without excessive cabinet volume. The dual low-frequency drivers suggest a focus on reducing cone excursion and distortion, for cleaner bass at higher output levels. The port is on the rear, so room placement matters, since boundary coupling will significantly affect bass response.
Series II EMIT-R Tweeter and Polydome Midrange
The highs come from a 28mm (1.1") Series II EMIT-R tweeter, a design intended to extend well beyond the audible range with low distortion. It is paired with a 7.6cm (3") Polydome midrange. The upper mids and treble are reportedly smooth and detailed, which fits the speaker’s noted "air" and natural timbre. The frequency response runs up to 45 kHz under ±3dB tolerance, which suggests a design optimized for transient accuracy and phase coherence, possibly to better interface with analog tape and early digital sources.
Computer-Optimized Outboard Crossover
The external crossover network is one of the most distinctive things about the Kappa 8.2i Series II. It is described as "premium" and "computer-optimized." The module separates the signal before it reaches the drivers, allowing precise slope control and phase alignment across the four frequency bands. An outboard crossover was uncommon in consumer speakers of this era and implies a studio-monitor ethos, accuracy over convenience. It also adds complexity. Owners must manage an additional component and make sure the cabling between amp and speaker is right.
4 Ohm Load Requiring High-Current Amplification
The Kappa 8.2i Series II has a nominal impedance of 4 ohms and calls for high-current amplifiers. It is not a speaker for modest systems. The low impedance suggests a design that draws significant current, particularly in the bass region. Sources consistently note that the speakers "need ample power to shine," and underpowered amplifiers may struggle with dynamics and control. With a strong amplifier behind them, the result is a transparent, dynamic presentation with excellent driver integration.
Collectibility & Value
The Infinity Kappa 8.2i Series II has held a quiet but steady presence in the used market. Listings from 2017 to 2025 show prices ranging from $750 to €800, with regional variations: 7,000 SEK in Sweden (2017), $1,100 AUD in Australia (2019), and a Japanese auction starting at ¥12,000. These figures suggest moderate collectibility, with value holding reasonably well over time. The documentation reports no widespread failures or maintenance issues. Still, the age of the components, particularly the crossover electronics and driver surrounds, implies that refurbishment may be necessary for long-term reliability. Spare parts are not documented, so original condition is a key factor in resale.
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