Polk Audio PA660 4

Name: Polk Audio PA660 4
Brand: Polk Audio

Average price

$105

Market sales

Price trend

Insufficient trend data

$50Avg $105$200

Typical range $80 – $125 · middle 50% of transactions

Based on 21 market transactions via web search — not HiFi Registry sales. HiFi Registry sales will accumulate as new listings sell on HiFi Registry.

Sold or Listed Prices

Date	Sold or Listed for
Feb 14, 2015	$99
Feb 10, 2015	$100
Jan 22, 2015	$100
Jan 14, 2015	$100
Oct 21, 2014	$125
Oct 21, 2014	$80
Oct 15, 2014	$70
Jul 25, 2014	$180
Jul 22, 2014	$160
Jul 14, 2014	$50
Aug 19, 2014	$125
Jul 1, 2014	$125
Jul 2, 2014	$125
May 8, 2014	$50
May 11, 2014	$100
Apr 19, 2014	$200
Apr 5, 2014	$100
Mar 15, 2014	$80
Mar 25, 2014	$60
Jul 18, 2013	$80

21 market transactions via web search — not HiFi Registry sales.

Understanding the market

Half of recorded transactions fall between $80 and $125. The full observed range is unusually wide — the highest recorded price is 4.0× the lowest. A spread that wide usually means the recorded sales are not strictly comparable: different configurations or finishes, units sold for parts or with cosmetic damage, or listings where the model name is shared across more than one variant. Treat the middle range as the useful signal and the extremes as outliers worth investigating before you price against them.

What buyers should know

Depreciation here is driven by HDMI and codec support, not sound quality — a unit two standards behind current loses value quickly regardless of condition. Confirm the HDMI board is functional, since it is the most common failure point.

This range reflects 21 recorded sales, compiled from publicly listed and completed sales elsewhere on the used market, not from HiFi Registry transactions. That is a large enough sample to price against with reasonable confidence, though condition and provenance still move individual units.