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Listing Comps / Theta Digital / Enterprise
Monoblock Amplifier

Theta Digital Enterprise

Average price
$4,155
Market sales
28
Price trend
↓ 69% vs prior year
$750Avg $4,155$20,000
Typical range $2,499 – $4,750 · middle 50% of transactions
Based on 28 market transactions via web search — not HiFi Registry sales. HiFi Registry sales will accumulate as new listings sell on HiFi Registry.

Price trend

Jan 25Jul 25Jan 26Jul 26

20 months of data shown — Listing Comps build richer history as transactions accumulate.

Sold or Listed Prices

DateSold or Listed for
Apr 4, 2026$1,600
Mar 2, 2026$750
May 3, 2025$3,800
Jul 12, 2024$2,499
Jul 18, 2024$1,449
Jul 12, 2024$2,499
Feb 18, 2024$3,200
Sep 8, 2022$20,000
Mar 28, 2021$2,947
Aug 11, 2018$7,000
Apr 29, 2018$3,600
Feb 28, 2018$4,900
Jan 14, 2018$1,500
Oct 28, 2017$1,600
Aug 23, 2017$1,500
Jan 7, 2016$3,450
Oct 29, 2015$6,900
Jul 12, 2015$4,000
Jun 4, 2015$3,200
Jun 4, 2015$3,200

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

Understanding the market

Half of recorded transactions fall between $2,499 and $4,750. The full observed range is unusually wide — the highest recorded price is 26.7× 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

Confirm both monoblocks have matching service histories — a pair where only one has been serviced is effectively two different amplifiers. Check that the seller has both original cartons; these are heavy and awkward to ship safely.

This range reflects 28 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.

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Theta Digital Enterprise used price — $4,155 average | HiFi Registry