What is the best amplifier pairing for Monitor Audio Bronze 500 speakers?

Hello,

I recently purchased Monitor Audio Bronze 500 speakers, and I have them paired with a Denon AVR-2700 receiver and a Project Debut Carbon EVO turntable. With my initial 50 hrs of listening so far, I don't feel that I'm reaching the full potential of these speakers. I've listened to CD's and vinyl with the speakers, and while they sound good for most music, they are often too shrill when listening to classic rock- Led Zeppelin- Physical Graffiti,The Who- Meaty, Beaty, Big and Bouncy, Jefferson Airplane- Surrealistic Pillow, etc. I've listened to these same records on vinyl and Tidal-HD, and the shrillness is still present.  I've attempted to play with the treble control on my Denon receiver, but it doesn't seem to change the sound much. The Denon AVR 2700 is over 23 years old at this point, and I don't know if it has enough power to effectively push these speakers?  The Monitor Bronze 500 specs are below:

21/2-Way

Frequency Response (-6 dB)
41 – 25,000 Hz (Free field)
32 – 30,000 Hz (In room)

Sensitivity (2.83v @ 1m)
90 dB

Nominal Impedance
8 ohms

Minimum Impedance
4.1 ohms

Maximum SPL
116 dBA (pair)

Power Handling (RMS)
200 W

Recommended Amplifier Requirements
60 — 200 W

Bass Alignment
Bass reflex Dual HiVe II port system

Crossover Frequency
550 Hz
2,700 Hz

Drive Unit Complement
2 x 8" C-CAM midbass driver
1 x 25 mm C-CAM Gold Dome tweeter with UD Waveguide

External Dimensions (Including Grille and Terminals (H x W x D))
951 x 231 x 325 mm (377/16 x 91/8 x 1213/16")

External Dimensions (including Outrigger Feet and Spikes (H x W x D))
974 x 294 x 364 mm (383/8 x 119/16 x 145/16")

Weight (each)
18 kg (39 lb 11 oz)
I'm looking to spend no more than $1000 for an amplifier, and would like to still be able to run these speakers with my TV to watch movies. Please provide any recommendations that come to mind.