Best Amplifiers for Klipsch Heresy IV

The Klipsch Heresy IV is a floorstanding speaker with 8Ω nominal impedance and a recommended power range of 100–400W. These amplifiers are ranked by how well they are technically matched to drive the Klipsch Heresy IV speaker. This is not a recommendation of quality, sound character, timbre, or objective listening experience.

Ratings consider amplifier power output, speaker impedance, and the ratio of amp power to the speaker's recommended amplification range, this is known as "headroom". Recommended headroom for consumer applications is 20-100% of the speaker's recommended power maximum.

Amplifier	Amp Specs	Speaker Specs	Match Rating	Headroom	Impedance	Price
McIntosh MC611 Monoblock (2 required)	600W into 8Ω	100–400W · 8Ω	Excellent	50%	✓ Safe	$9,500 - $11,500	Shop
Advance Paris X-A1200 Monoblock (2 required)	450W into 8Ω	100–400W · 8Ω	Adequate	13%	✓ Safe	$5,950 - $7,350	Shop
McIntosh MC462	450W into 8Ω	100–400W · 8Ω	Adequate	13%	✓ Safe	$8,500 - $10,500	Shop
Crown XLS 2502	440W into 8Ω	100–400W · 8Ω	Adequate	10%	✓ Safe	$725 - $925	Shop
Anthem STR Power Amplifier	400W into 8Ω	100–400W · 8Ω	Adequate	0%	✓ Safe	$5,500 - $6,850	Shop
Buckeye Amps NCx500 2-Channel	380W into 8Ω	100–400W · 8Ω	Adequate	-5%	✓ Safe	$875 - $1,100	Shop
Buckeye Amps NCx500 Monoblock	380W into 8Ω	100–400W · 8Ω	Adequate	-5%	✓ Safe	$650 - $800	Shop
McIntosh MA12000	350W into 8Ω	100–400W · 8Ω	Adequate	-12%	✓ Safe	$18,000 - $20,000	Shop
Buckeye Amps NC502MP 2-Channel	350W into 8Ω	100–400W · 8Ω	Adequate	-12%	✓ Safe	$625 - $775	Shop
McIntosh MC3500 Mk II Monoblock (2 required)	350W into 8Ω	100–400W · 8Ω	Adequate	-12%	✓ Safe	$18,000 - $20,000	Shop
Rotel RB-1590	350W into 8Ω	100–400W · 8Ω	Adequate	-12%	✓ Safe	$3,200 - $3,800	Shop
Fosi Audio BT20A Pro	300W into 4Ω	100–400W · 8Ω	Adequate	-25%	✓ Safe	$80 - $120	Shop
McIntosh MA9500	300W into 8Ω	100–400W · 8Ω	Adequate	-25%	✓ Safe	$10,800 - $13,200	Shop
Accuphase P-7500	300W into 8Ω	100–400W · 8Ω	Adequate	-25%	✓ Safe	$24,600 - $27,300	Shop
Bryston 4B³	300W into 8Ω	100–400W · 8Ω	Adequate	-25%	✓ Safe	$6,200 - $7,000	Shop
Dan D'Agostino Progression Stereo	300W into 8Ω	100–400W · 8Ω	Adequate	-25%	✓ Safe	$38,000 - $42,000	Shop
Emotiva XPA-2 Gen3	300W into 8Ω	100–400W · 8Ω	Adequate	-25%	✓ Safe	$1,225 - $1,375	Shop
Mark Levinson No. 33	300W into 8Ω	100–400W · 8Ω	Adequate	-25%	✓ Safe	$4,000 - $6,000	Shop
McIntosh MC-2300	300W into 8Ω	100–400W · 8Ω	Adequate	-25%	✓ Safe	$1,530 - $1,890	Shop
McIntosh MC2301 Monoblock (2 required)	300W into 8Ω	100–400W · 8Ω	Adequate	-25%	✓ Safe	$16,200 - $19,800	Shop